JP5319344B2 - Crane power supply system - Google Patents

Description

  The present invention relates to a power supply system for a portal crane used for container handling at a port or an inland container terminal.

  At container terminals such as harbors and inland areas, containers between ships and trailers are handled by quay cranes and portal cranes.

  FIG. 10 shows a schematic view of a container terminal 30 in a harbor. The container 35 of the container ship 34 is loaded on the trailer 33 by the quay crane 36 and placed on the lane 31 that is a container placement block from the trailer 33 by the portal crane 2X. The container 35 may be transported to the destination of the luggage while being loaded on the trailer 33.

  Here, the portal crane 2X can be roughly classified into a rail mount type and a tire type. A rail-mounted portal crane (hereinafter referred to as RMT) moves on a rail laid along the lane 31 at a speed of about 8 km / h and performs a cargo handling operation. In many cases, electricity serving as the power of the RMT is supplied by connecting a cable installed in the crane 2X to the power supply connector portion 32 in the terminal.

  In contrast, a tire-type portal crane (hereinafter referred to as RTT) travels with tires, so it can be easily moved between lanes (lane change), and easily moved to lane 31 with a lot of cargo handling work. be able to. In order to make use of the mobility of the RTT, the power of the RTT is often electricity supplied from a diesel generator or the like installed in the RTT.

  In recent years, the energy source of RTT has been switching from a diesel generator that generates exhaust gas to land electricity supplied from the container terminal 30 in consideration of the environment (see, for example, Patent Document 1). Patent Document 1 discloses a method of supplying power to a RTT using a cable reel that is a cable feeding and winding means, as in the case of RMT. As a result, the exhaust gas emission amount can be suppressed, but the lane change, which is an advantage of RTT, becomes difficult. That is, the terrestrial power feeding connector portion 32 for connecting the cable reel is installed for each lane, and it is necessary to perform the cable attaching / detaching work with the power feeding connector portion 32 at the time of lane change. In addition, since high-voltage electricity flows through the power supply connector portion 32, there is a problem in the safety and workability of the attaching / detaching work. In order to solve this problem, a power feeding system has been proposed in which a traveling power supply carriage is connected to a crane and power is supplied via the traveling power supply carriage (see, for example, Patent Document 2).

  As shown in FIG. 11, the power feeding system 1X described in the cited document 2 includes a cable reel and a transformer installed in the traveling power supply carriage 3X, and converts high-voltage electricity sent from land power into low-voltage electricity with a transformer. It is the structure supplied to. The place where the cable is attached and detached during the lane change is a connecting portion 21X between the transformer and the crane. Since the low voltage current converted by the transformer flows through the connecting portion 21X, the safety and workability of the cable attaching / detaching work at the time of the lane change can be improved to a certain extent. In addition, although high voltage electricity is 3300-11000V and a low voltage electricity differs in regulations by country or area, it is 600V or less in Japan, for example.

The traveling power supply carriage 3X is pulled by the crane 2X by the connecting mechanism 4X that connects the crane 2X and the traveling power supply carriage 3X, and the traveling power supply carriage rail 23 laid on the lane 31 is placed on the crane 2X. Follow and drive. The traveling power supply cart 3X includes a drive device and is self-propelled. However, from the viewpoint of cost, the traveling power supply cart 3X is often connected to the crane 2X by the coupling mechanism 4X to be pulled.

  Here, the connection mechanism 4X needs to have a flexible connection structure 4X so as not to transmit the influence of vibration or the like associated with the traveling of the crane 2X to the traveling power supply carriage 3X, and a universal joint or a link mechanism is used. (For example, refer to Patent Document 2 FIGS. 3 and 5).

JP 2007-223805 A International Publication No. 2009/002509

  However, the power supply system described in Patent Document 2 has a problem that the mobility, which is the merit of RTT, is reduced because the RTT can exert an effect only on ground power supply on the lane where the cargo handling work is performed. In other words, at the time of a lane change that traverses from the lane that is handling cargo to other lanes, it becomes impossible to supply power by following the power supply carriage as it is due to problems such as cable length limitations and handling, It will be necessary to install a diesel generator for traversal.

  Further, when the power source of the crane at the time of lane change is a power storage facility such as a battery, disposal after use is difficult, and there is a problem that the load on the environment is not sufficiently reduced. In addition, there are problems of high cost and heavy weight.

  The present invention has been made in order to solve the above-described problem, and an object of the present invention is to install a transverse traveling power supply carriage for supplying power for lane change in a power supply system including a crane and a traveling power supply carriage. The lane change can be easily performed, and the coupling mechanism efficiently transmits the force in the traveling direction x to the traveling power supply carriage, but does not transmit the force in the transverse direction y and the torsional direction, and has a highly durable structure. It aims at providing the electric power feeding system which has.

  In order to achieve the above object, a power supply system for a crane according to the present invention includes a crane that handles a marine transportation container, and performs power supply following the crane when the crane moves along a traveling lane. A traveling power supply carriage, and a traverse power supply carriage that feeds power following the crane when the crane traverses the transverse lane from a traveling lane to a different traveling lane from the traveling lane, the crane, In the power supply system of the crane configured such that the traveling carriage and the traversing carriage can be connected by a connection mechanism, a traveling connection mechanism that connects the crane and the traveling power supply carriage, a receiving member installed in the traveling power supply carriage, When the crane moves in the traveling direction, the push member is connected to the receiving member. The force that moves in the traveling direction of the crane is transmitted to the traveling power supply carriage, and when the crane moves in the transverse direction that intersects the traveling direction, the receiving member moves the push member. When the crane is displaced in the vertical direction, the receiving member does not hinder the movement of the push member, and the force that moves in the transverse direction of the crane is not transmitted to the traveling power supply carriage. It has the driving | running | working connection mechanism in which the force which moves to the said perpendicular direction is not transmitted to the said driving | running | working electric power supply trolley | bogie.

In the above power feeding system, a traverse connection mechanism that couples the crane and the traverse power feed carriage includes a receiving member installed on the traverse power feed carriage and a push member installed on the crane, and the crane moves in the traverse direction. In this case, when the pushing member comes into contact with the receiving member, the force of moving the crane in the transverse direction is transmitted to the transverse feeding carriage, and when the crane moves in the traveling direction, the receiving member is If the movement of the crane in the traverse direction is not transmitted to the traverse feed carriage and the crane is displaced in the vertical direction, the receiving member does not impede the movement of the push member. The traverse connecting mechanism is such that the force of the crane moving in the vertical direction is not transmitted to the traverse power supply carriage.

  In the above power supply system, the receiving member has a contact bar extending in a vertical direction from the power supply carriage, and the push member has two rod-like bodies protruding laterally from the crane, When the contact bar is disposed between two rod-shaped bodies and the crane moves in the movement direction, one of the rod-shaped bodies contacts the contact bar and transmits a force in the movement direction, and the crane moves. In the case of moving in a displacement direction that intersects the direction, the rod-shaped body does not transmit a force that moves in the displacement direction of the crane to the power supply carriage.

  In the above power supply system, the power supply equipment of the container terminal and the power supply carriage are connected by a power supply belt, and the power supply belt is connected to a bendable multi-joint belt in which a plurality of cylindrical bodies are connected, and inside the multi-joint belt. It has the cable for the electric power feeding which let it pass.

  In the above power supply system, the power supply facility of the container terminal and the power supply carriage are electrically connected by a rigid trolley power supply apparatus, and the rigid trolley power supply apparatus is connected to the rigid trolley wire laid along the lane and the power supply carriage. It comprises an installed current collector, and feeds power by bringing the rigid trolley wire and the current collector into contact with each other.

  In the above power supply system, the power supply equipment of the container terminal and the power supply carriage are electrically connected by a non-contact power supply apparatus, and the non-contact power supply apparatus is installed in the power supply carriage and the power supply line laid along the lane. The power receiving core is configured to receive the magnetic flux generated from the power supply line by the power receiving core and convert the current into a current to supply power.

  In order to achieve the above object, a lane change method for a power feeding system for a crane according to the present invention includes a crane for handling a marine transportation container, and the crane follows the crane when the crane moves along a traveling lane. A traveling power supply carriage that feeds power, and a traverse power supply carriage that feeds power following the crane when the crane traverses from the travel lane to a different travel lane to change lanes, the crane, In the lane change method for a crane, in which the traveling carriage and the traversing carriage can be connected by the traveling coupling mechanism and the traversing coupling mechanism, respectively, the crane and the traveling power supply carriage of the traverse feeding carriage that waits at the lane change section. Travel to the position, connected to the traverse coupling mechanism of the traverse feed cart, and the crane and the traverse feed A traverse feed trolley connecting step for connecting a low voltage feed coupler of the carriage, a power switching step for releasing the connection between the crane and the low voltage feed coupler of the travel feed carriage, and the traveling lane of the destination where the crane moves together with the traverse feed carriage And a traversing start step for releasing the connection of the traveling connection mechanism that connects the crane and the traveling power supply carriage by the movement.

  In the lane change method described above, the crane moves to the travel lane of the destination, is connected to a travel power supply cart that is waiting in the travel lane, and is disconnected from the traverse power supply cart. The carriage has a lane change completion step of self-propelled by an installed driving device and retracting from the traveling lane.

  Note that the power supply carriage is configured to supply the power supplied from the power supply facility of the container terminal to the crane via the transformer and the connecting portion.

  According to the crane power supply system of the present invention, it is possible to provide a container terminal in which exhaust gas emission is zero due to the configuration in which the power of the crane at the time of lane change is supplied from a traverse power supply carriage. Since no generator is used, fuel costs and maintenance costs become unnecessary. In addition, since the connection mechanism connection and release work required for the lane change is simplified, the time required for the lane change can be shortened.

  In addition, the connection mechanism that connects the crane and the traveling power supply carriage prevents the traveling power supply carriage from being accidentally derailed and overturned by not transmitting the traverse and twisting forces of the crane to the traveling power supply carriage. Therefore, even a traveling power supply carriage that does not have a drive device can be made to follow the crane stably. Moreover, since the connection mechanism has a simple structure such as a rod-shaped body, the durability is high and the possibility of failure can be reduced.

  Further, the configuration in which the power feeding connector portion and the transformer are connected by the power feeding belt except for the cable reel can lower the center of gravity of the traveling power supply carriage and prevent the traveling power supply carriage from falling over. Further, the configuration in which the power feeding cable is disposed in the articulated belt can protect the cable from damage and the like.

It is the figure which showed the crane electric power feeding system of embodiment which concerns on this invention. It is the figure which showed the lane change in the crane electric power feeding system of embodiment which concerns on this invention. It is the figure which showed the lane change in the crane electric power feeding system of embodiment which concerns on this invention. It is the figure which showed the lane change in the crane electric power feeding system of embodiment which concerns on this invention. It is the figure which showed the state of the connection mechanism at the time of crane operation. It is the figure which showed the connection mechanism of different embodiment which concerns on this invention. It is the figure which showed the connection mechanism of different embodiment which concerns on this invention. It is the figure which showed the rigid body trolley electric power feeder. It is the figure which showed the non-contact-type electric power feeder. It is the figure which showed the outline of the container terminal. It is the figure which showed the conventional driving | running | working electric power supply trolley | bogie and a crane.

  Hereinafter, a power feeding apparatus for a crane according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a crane 2, a traveling power supply carriage 3 </ b> A, and a traverse power supply carriage 3 </ b> B that constitute the power supply system 1. The power supply traveling carriages 3 </ b> A and 3 </ b> B follow the traveling of the crane 2, and connect the low-voltage power supply couplers 21 </ b> A and 21 </ b> B. It is set as the structure which supplies electric power via. The coupling mechanisms 4A and 4B between the crane 2 and the power supply carriages 3A and 3B are composed of a contact bar 12 that is a receiving member 10 installed on the power supply trucks 3A and 3B and a rod-like body 13 that is a push member 11 installed on the crane 2.

The receiving member 10 installed on the traveling power supply carriage 3A has a contact bar 12 extending in the vertical direction, and the contact bar 12 is preferably installed vertically on the traveling power supply carriage 3A. And the pushing member 11 installed in the crane 2 has the two rod-shaped bodies 13, and has arrange | positioned in the position which pinches | interposes the contact bar 12. As shown in FIG.

  Next, the function of the traveling connection mechanism 4A will be described. As the crane 2 moves in the traveling direction x, the rod-shaped body 13 moves, and one of the rod-shaped bodies 13 comes into contact with the contact bar 12 in the traveling direction and pushes the contact bar 12. With the power in the traveling direction x, the traveling power supply carriage 3A can move in the traveling direction x along the traveling rail 23A.

  Further, when the crane 2 is displaced in the traversing direction y due to vibration, travel deviation, or the like, the rod-like body 13 cannot push, for example, the contact bar 12 of the travel feed cart 3A in the traverse direction y. That is, since the member that prevents the movement of the rod-shaped body 13 in the transverse direction y is not installed in the traveling power supply carriage 3A, the traveling power supply carriage 3A does not receive the force in the transverse direction y, and accidents such as wheel removal and rollover occur. Does not occur. Further, even if the rubber tire supporting the crane is deformed by the suspension load and the rod-like body 13 moves vertically downward or upward, the traveling power supply carriage 3A does not receive vertical force.

  In addition, the traverse feed cart 3B that feeds power when performing a lane change and the traverse connection mechanism 4B that connects the crane 2 are configured in the same manner as the travel connection mechanism 4A. As a different point, the traverse coupling mechanism 4B is configured to transmit the power in the traverse direction y of the crane 2 to the traverse feed cart 3B and not to transmit the deviation or vibration in the travel direction x and the vertical direction.

  With the configuration using the above-described connection mechanisms 4A and 4B, alignment when connecting the crane 2 and the power supply carriages 3A and 3B is facilitated, and the connection work is facilitated. In addition, the connection mechanisms 4A and 4B are not easily connected with the crane 2 and the power supply carriages 3A and 3B directly by bolts or the like unlike a universal joint or the like, so that connection and disconnection are very easy.

  Further, when the crane 2 and the power supply carriages 3A and 3B are connected, the relative position shift between the crane 2 and the power supply trucks 3A and 3B becomes small, so that the low-voltage power supply coupler 21 can be easily attached and detached.

  In addition, even if the receiving member 10 and the pushing member 11 in the present invention are installed in the opposite directions with respect to the crane 2 and the traveling power supply carriage 3A, the same operational effects can be obtained. In FIG. 1, the traveling power supply carriage 3 </ b> A is configured to travel on the side of the two legs of the crane, but the traveling power supply carriage is installed in a space between the two sets of traveling wheels 20 installed on the crane 2. 3A may be arranged. With this installation method, even when the container terminal is a conventional container terminal and there is no laying space for the traveling rail 23A on which the traveling power supply carriage 3A travels, the power supply system 1 similar to FIG. 1 can be applied. Similarly, the traverse power supply carriage 3B may be arranged between the two crane legs.

  Next, power supply from the container terminal 30 to the power supply carts 3A and 3B will be described. The power feeding connector portion 32 installed in the container terminal 30 and the power feeding carts 3A, 3B are connected by the cable 6 of the cable feeding / winding means to perform power feeding. The cable feeding and winding means may use a conventionally used cable reel, but the power feeding system 1 shown in FIG. 1 is configured to feed power using the power feeding belt 26. The power feeding belt 26 includes a bendable articulated belt 27 that connects a plurality of cylindrical bodies, and a cable 6 that passes through a space inside the articulated belt 27. The cable 6 is protected by an articulated belt 27 that is this frame.

The power supply belt 26 connects the power supply connector portion 32 and the transformers of the power supply carts 3 </ b> A and 3 </ b> B, and is pulled by the crane 2 while moving the position of the folded portion in accordance with the traveling of the crane 2. That is, when the crane 2 is in the vicinity of the power supply connector portion 32, the power supply belt 26 is folded in two, and the upper side of the two folds is slid as the crane 2 travels, and the folded portion is Then move down. At this time, the lower power supply belt 26 does not move. When the crane 2 arrives at the other end of the lane 31, the power feeding belt 26 is in a state where all the two folded portions are extended. With the configuration in which the power supply belt 26 is installed instead of the cable reel, the center of gravity of the power supply carriages 3A and 3B is lowered, so that the accidents of the power supply trucks 3A and 3B falling can be reduced.

  Here, the power feeding belt 26 is accommodated in the belt groove 28 so as not to hinder the traveling of the trailer 33 and the like moving on the container terminal 30. In addition, when the power feeding connector portion 32 is installed at the center portion of the lane 31, the length of the power feeding belt 26 may be half as long as the entire length of the lane 31, and the cost can be reduced.

  Next, a method for changing the lane of the crane 2 will be described with reference to FIGS. FIG. 2 shows a state of the crane 2 that moves to the lane change portion in order to change the lane. The crane 2 is supplied with power from the power supply carriage 3A via a low-voltage power supply coupler 21 (not shown), and the traveling power supply carriage 3A is caused to follow by the traveling connection mechanism 4A.

  Here, when a lane change is performed, first, the crane 2 starts moving to the lane change unit where the traverse feed cart 3B is waiting. Then, as shown in FIG. 3, the traverse feed cart 3B is connected via the traverse coupling mechanism 4B, and further, the low voltage feed coupler 21B is connected between the traverse feed cart 3B and the crane 2 (the traverse feed cart). Concatenation step).

  Next, the connection of the low-voltage power supply coupler 21A between the traveling power supply truck 3A and the crane 2 is released, and the power supply of the crane 2 is switched to the power supply of the traverse power supply truck 3B (power supply switching step). Next, as shown in FIG. 4, the crane 2 starts traversing and moves to the travel lane of the destination by feeding the traverse feeding cart 3 </ b> B. By this movement, the connection of the travel connection mechanism 4A is automatically released (a traverse start step).

  With the configuration having the coupling mechanisms 4A and 4B, the operation of connecting and disconnecting the crane 2 and the power supply carriages 3A and 3B is automatically realized by the movement of the crane 2. Therefore, the lane change can be easily performed in a short time. It can be carried out. Further, since the crane 2 can be connected to the traveling power supply carriage 3A and the traverse power supply carriage 3B at the same time, the power supply can be easily switched.

  Here, it is good also as a structure which attaches the drive device for self-propelled to the traverse electric power supply trolley | bogie 3B, and the radio | wireless remote driving device which can be operated from the operation room of the crane 2. FIG. With this configuration, when the lane change is completed and the crane 2 moves in the traveling direction x, the traverse power supply carriage 3B can be moved so as not to hinder the traveling of the crane 2. In other words, when a lane change occurs, a command is issued to stand by at the lane change section close to the traveling lane, and when a lane change is not performed, a command is issued to wait at a position away from the lane change section. It can be set as the structure which can be performed.

  In addition, you may comprise so that attachment or detachment of the low voltage electric power feeding coupler 21 may be automatically performed by control from the operation room of the crane 2, and this structure can shorten the time required in the case of a lane change. . Here, the efficiency of automatic attachment / detachment can also be improved by forming the female side of the low-voltage power supply coupler 21 in an expanded form. Further, it is desirable that the low-voltage power supply coupler 21 is installed on the crane 2 and the power supply carriages 3A and 3B via a cylinder device or the like, and has a structure that can sufficiently absorb the displacement, vibration, and the like of the crane 2.

FIG. 5 shows the operation of the traveling connection mechanism 4A when a force is applied to the crane 2 in the transverse direction y and the twist direction. FIG. 5A shows a state where the traveling power supply carriage 3A is traveling following the crane 2 moving in the traveling direction x in the upper part of the drawing. At this time, the rod-like body 13 below the drawing is in contact with the contact bar 12.

  FIG. 5B shows a case where the crane 2 is displaced in the transverse direction y, and the traveling power supply carriage 3A receives a force in the traveling direction x but does not receive a force in the transverse direction y. . That is, since the member which transmits the movement of the rod-shaped body 13 in the transverse direction y to the traveling power supply carriage 3A is not disposed, the traveling power supply carriage 3A transmits only the force in the traveling direction x from the crane 2. Here, the projecting lengths of the two rod-like bodies 13 are determined so as to allow deviation of the crane 2 in the transverse direction y.

  C in FIG. 5 shows a case where the crane 2 is displaced in the twisting direction. Similarly to the above, the traveling power supply carriage 3A receives a force in the traveling direction x but does not receive a force in the transverse direction y. Is shown. Here, the interval between the two rod-like bodies 13 is determined so as to allow deviation of the crane 2 in the twisting direction.

  The traversing coupling mechanism 4B also has the same mechanism as described above, and when the crane 2 is displaced in the traveling direction x or in the torsional direction, a force in the transverse direction y is exerted on the traverse feeding cart 3B. Is transmitted, and the force in the traveling direction x is not transmitted.

  The crane 2 has a travel deviation of about ± 150 mm in the transverse direction and an angular deviation of about ± 2 ° in the torsion direction. Since the crane 2 is supported by rubber tires, the weight of the suspended load is increased. Due to this, it is displaced about 150 mm in the vertical direction.

  FIG. 6 shows a travel coupling mechanism 4A in a different embodiment according to the present invention. The receiving member 10 installed in the traveling power supply carriage 3A has a configuration in which the upper part of the substantially T-shaped member is a contact bar 12, and the contact bar 12 is extended in a direction intersecting the traveling direction x. . On the other hand, the pushing member 11 installed in the crane 2 is arranged inside the contact bar 12 and is composed of two rod-like bodies 13.

  FIG. 7 shows a travel connection mechanism 4A in a different embodiment according to the present invention. The receiving member 10 installed in the traveling power supply carriage 3 </ b> A has a contact wall 17 corresponding to the contact bar 12 and a slide wall 18 corresponding to the slide bar 14. On the other hand, the pushing member 11 installed in the crane 2 is arranged inside the contact wall 17 and is composed of two rod-like bodies 13. Note that the slide wall 18 needs to be installed at a position that does not hinder the movement of the rod-shaped body 13 in the transverse direction y. For example, the slide-shaped body 13 is placed under the slide wall 18 with the slide wall 18 as a ceiling position. You may arrange as follows.

  As mentioned above, although some aspects of the traveling connection mechanism 4A have been shown, this can be similarly applied to the transverse connection mechanism 4B. However, it should be noted that at this time, the moving direction of the crane 2 is the transverse direction y, and the deviation direction is the traveling direction x.

  FIG. 8 shows a power feeding system 1 according to another embodiment of the present invention, and shows a configuration in which power is fed from the container terminal to the crane 2 by the rigid trolley power feeding device 40. The rigid trolley power supply device 40 is configured to supply power by contacting a rigid trolley wire 41 and a current collector 42 installed on the traveling power supply carriage 3 </ b> A. The contact 42 slides while maintaining contact on the rigid trolley wire 41. It is possible to move. With this configuration, it is possible to prevent the power supply carriage 3A from overturning, and to simplify the connection and disconnection work of the connection mechanism at the time of a lane change.

In addition, although the mode of the electric power feeding to 3 A of traveling electric power supply trolleys is shown in FIG. 8, it is applicable similarly to the traverse electric power supply trolley 3B.

  FIG. 9 shows a power supply system 1 according to another embodiment of the present invention, and shows a configuration in which power is supplied from the container terminal to the crane 2 by the non-contact power supply device 45. The non-contact power supply device 45 is configured to receive the magnetic flux generated from the power supply line 46 by the power receiving core 47 installed in the traveling power supply carriage 3 </ b> A and convert it into a current to supply the power, and the power receiving core 47 extends along the power supply line 46. It is possible to move. Since this non-contact power supply device 45 has no wear parts, maintenance is not required, and since a current flows through the coated power supply line 46, an accident such as a short circuit or an electric shock can be prevented. Note that the present invention can be similarly applied to the traverse power supply carriage 3B.

DESCRIPTION OF SYMBOLS 1 Power supply system 2 Crane 3A Traveling power supply trolley 3B Traverse power supply trolley 4A Traveling connection mechanism 4B Transverse connection mechanism 10 Receiving member 11 Pushing member 12 Contact bar 13 Rod-shaped body 26 Power supply belt 27 Articulated belt 40 Rigid trolley power supply device 41 Rigid trolley wire 42 Current collector 45 Non-contact power feeding device 46 Power feeding line 47 Power receiving core

Claims (8)

A crane for handling a marine shipping container, a travel feeder carriage to perform follow-up to the feed before Symbol crane when the crane moves along the travel lane, transverse lane to the driving lane in which the crane is different from the driving lane A traverse power supply carriage that feeds power following the crane when the lane change is performed by moving up , and the traveling power supply carriage and the traverse power supply carriage can be connected to the crane by a connection mechanism, respectively. In the crane power supply system configured in
The traveling connection mechanism that connects the crane and the traveling power supply carriage includes a receiving member installed in the traveling power supply carriage, and a pressing member installed in the crane.
If the crane is moved in the running direction is a direction along the travel lane, the push member is in contact with the receiving member, the moving force to the running direction of the crane, is transmitted to the traveling feed carriage,
If the crane moves in the transverse direction is a direction along the transverse lane, the receiving member does not interfere with the movement of the push member, the force to move to the transverse direction of the crane is transmitted to the traveling power supply cart Without
When the crane is displaced in the vertical direction, the receiving member does not hinder the movement of the push member, and has a traveling connection mechanism in which the force of moving the crane in the vertical direction is not transmitted to the traveling power supply carriage. Characteristic power supply system. A traverse coupling mechanism that couples the crane and the traverse power supply carriage is composed of a receiving member installed on the traverse power supply carriage, and a push member installed on the crane,
If the crane is moved in the transverse direction, the push member is in contact with the receiving member, a force to move to the transverse direction of the crane, and transmitted to the transverse feed carriage,
When the crane moves in the traveling direction, the receiving member does not hinder the movement of the push member, and the force of the crane moving in the traveling direction is not transmitted to the traverse power supply carriage,
When the crane is displaced in the vertical direction, the receiving member does not hinder the movement of the push member, and has a connecting mechanism that does not transmit the force for moving the crane in the vertical direction to the traverse power supply carriage. The power feeding system according to claim 1. The receiving member has a contact bar extending in a vertical direction from the power supply carriage, and the push member has two rod-like bodies protruding laterally from the crane, and is between the two rod-like bodies. The contact bar is arranged in
When the crane moves in the traveling direction or the traversing direction , one of the rod-shaped bodies is in contact with the contact bar and transmits the force in the traveling direction or the traversing direction ,
When the crane moves in the transverse direction or the traveling direction intersecting the traveling direction or the transverse direction , the rod-like body transmits a force that moves the crane in the transverse direction or the traveling direction to the power supply carriage. The power feeding system according to claim 1, wherein the power feeding system is not.   A power supply facility of a container terminal and the power supply carriage are connected by a power supply belt, and the power supply belt is a bendable articulated belt in which a plurality of cylindrical bodies are connected, and a power supply cable passed through the inside of the articulated belt. The power feeding system according to claim 1, wherein the power feeding system is provided.   The power supply equipment of the container terminal and the power supply carriage are electrically connected by a rigid trolley power supply device, and the rigid trolley power supply device is composed of a rigid trolley wire laid along the lane and a current collector installed in the power supply cart. The power supply system according to any one of claims 1 to 3, wherein power is supplied by bringing the rigid trolley wire and the current collector into contact with each other.   Electrically connecting the power supply equipment of the container terminal and the power supply carriage with a non-contact power supply apparatus, the non-contact power supply apparatus is composed of a power supply line laid along the lane and a power receiving core installed on the power supply truck, The power feeding system according to any one of claims 1 to 3, wherein a magnetic flux generated from the power feeding line is received by the power receiving core and converted into a current to perform power feeding. A crane for handling a marine shipping container, a travel feeder carriage to perform follow-up to the feed before Symbol crane when the crane moves along the travel lane, transverse lane to the driving lane in which the crane is different from the driving lane have, and rampant power supply truck for supplying power to follow before Symbol crane during the lane change and move on,
In the lane change method for a crane , the crane and the traveling power supply carriage are configured to be connectable by a traveling connection mechanism, and the crane and the traverse power supply carriage are configured to be connectable by a transverse connection mechanism .
Together with the crane the traveling feed carriage, said traveling to the position of the transverse feeding carriage, and connected to the transverse coupling mechanism of the transverse feeder carriage and the feeding coupler of the transverse feeder carriage and the crane waiting in lane change section A traverse power supply cart connecting step for connecting
A power switching step for releasing the connection between the crane and the power feeding coupler of the traveling power supply cart;
Together with the crane the transverse feed carriage starts to move to the destination of the traveling lane, by the movement, and transverse initiation step of releasing the connection of the running coupling mechanism for connecting the driving power supply truck and the crane,
A lane change method characterized by comprising: The crane is moved to the destination of the traveling lane, and connected to the driving coupling mechanism and the feeding coupler of the traveling feed carriage waiting on the traveling lane, the transverse connecting mechanism and the feeding of the transverse feeder carriage 8. The lane change completion step according to claim 7, further comprising: a lane change completion step in which the traverse power supply carriage is self-propelled by an installed driving device and retreats from the travel lane after being disconnected from the coupler. Lane change method.

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