JP2009242081A - Lane moving method and device using carriage of rail mount type portal crane - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve efficient operation of an RMT1 in a container yard 15, by being realized by a structure and a facility for reducing failure and having high maintainability, by flexibly moving between lanes of the RMT1 (a rail mount type portal crane) in a short time. <P>SOLUTION: The RMT1 is moved on a carriage 50 arranged so as to connect the mutual lanes, and the carriage 50 is operated, and the RMT1 is moved up to a moving destination lane. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a rail-mounted portal crane that transports containers in a container yard such as a harbor, and equipment in the container yard.

  In container yards such as harbors, containers are loaded and unloaded between ships and trailers by cranes.

  FIG. 8 shows an overview of the container yard 15.

  A container 31 such as a 20 ft or 40 ft container transported by a ship 16 such as a container ship is unloaded by a container crane 17 installed on a quay and mounted on a trailer 32 that travels in a container yard 15. The containers 31 mounted on the trailer 32 are regularly arranged in a plurality of rows by the portal crane 1 to complete the unloading. These containers 31 are loaded again on other ships 16 or are transported to other places by trailers 32. A similar container yard may be used as an inland cargo terminal.

  Here, the portal crane 1 used is roughly classified into a crane that moves by tire (hereinafter, RTT) and a rail-mounted crane (hereinafter, RMT) that moves by a combination of rails and wheels. The RTT can move freely in the yard 15, but when the weight of the transported item or its own weight increases, the number of tires for supporting it increases. When the weight of the transported object such as the container 31 is large, the tire cannot support it, so RMT is adopted.

  In addition, the RMT moves on the rail 13 laid in the yard 15 so that the traveling direction is defined, positioning becomes easy, and stable transportation with little load fluctuation is realized when moving a suspended load. . Furthermore, since it moves along the rail 13, it is possible to supply power with the cable reel 20 shown in FIG. 10 which is a side view of the RMT. Environmental performance is also high.

  On the other hand, in the RMT, in order to increase the efficiency and leveling of the work in the container yard 15, for example, the work load in the first lane 21 shown in FIG. In many cases, there is a request to move the crane C1 in the first lane 21 to the second lane 22, and the RMT is moved between lanes (for example, the first lane 21 and the second lane 22) as a countermeasure at the time of failure. However, since RMT does not have a means to move between lanes, there are cases where a large number of cranes are arranged in advance in one lane, which may be dealt with, and is wasteful in terms of equipment. I had the problem of efficiency.

  On the other hand, an invention for performing RMT movement between lanes has been made (see, for example, Patent Document 1).

  According to the invention described in Patent Document 1, in order to realize the inter-lane movement of the RMT, as shown in FIG. 7, the direction perpendicular to each lane (for example, the first lane 21 and the second lane 22). In addition, an inter-lane movement rail 33 is laid to realize the inter-lane movement of the RMT 37.

At this time, the RMT 37 that has moved to the lane end 38 for cargo handling work is jacked up by the jack 36 installed at the lower part of the RMT 37, thereby removing the load applied to the wheel 11 and installed between the RMT 37 and the wheel 11. A turning device (not shown) is operated to rotate the wheel 11 by 90 degrees. Thereafter, the RMT 37 that has been jacked up is lowered so that the wheel 11 is on the inter-lane movement rail 33, so that only the wheel 11 is rotated in the direction of the inter-lane movement rail 33 without changing the direction of the RMT 37, and the inter-lane movement is performed. It is configured to move on the rail 33 for use.
JP 2004-175515 A

  However, in the method described in Patent Document 1, after the RMT 37 is jacked up and the wheel 11 is turned as shown in FIG. 7, the vehicle travels on the inter-lane movement rail 33 and travels on the lane as the destination. Therefore, it takes time and labor to move the lane between the lanes because the jack-up and the turning of the wheel 11 are performed again, so that it is difficult to easily and flexibly move the RMT 37 between the lanes.

  Further, a mechanism such as a jack 36 for jacking up the RMT 37 and a turning device for turning the wheel 11 is necessary. Since these mechanisms always take the weight of the RMT 37 and the container 31 which are heavy objects, problems occur. Therefore, there is a problem that maintenance is low. In particular, when used in a harbor, a complicated mechanism is affected by the sea breeze, resulting in severe deterioration and increased failure frequency.

  Further, as shown in FIG. 7, there is a cutting portion 25 in the rail 13, and when the crane wheel 11 passes through the rail cutting portion 25, the wear of the portion in contact with the wheel 11 at the corner of the rail cutting portion 25 is intense. Thus, the number of exchanges of the rail 13 and the inter-lane movement rail 33 is increased.

  In particular, in recent years, container yards 15 such as harbors are often in full operation for 24 hours, and if the maintenance frequency of the RMT 37 is increased, the operation rate of the container yard 15 is significantly reduced, and further, rail replacement work accompanying rail wear is performed. Inside, it becomes impossible to use the RMT 1 related to the rail 13, so that a significant decrease in the operation rate of the container yard 15 is unavoidable.

  Accordingly, the present invention has been made to solve the above-mentioned problems, and the RMT can be moved between lanes in a short time, and can be realized by a structure and equipment with few failures and high maintainability. The purpose is to realize efficient operation of the RMT within the network.

In order to solve the above-mentioned problem, the lane movement method using the carriage according to the first aspect of the present invention is based on a rail (two or more) laid for traveling by an RMT 1 used for box-shaped container transportation. The RMT 1 may be moved to another lane in a container yard 15 such as a harbor provided with a plurality of lanes composed of books or may be laid in parallel. The RMT 1 is moved and placed on a carriage 50 installed so as to connect the two, the carriage 50 is operated, and the RMT 1 is moved to a destination lane.

  In the lane movement apparatus using the carriage according to the invention of claim 2, the RMT 1 used for transporting the box-shaped container may be rails (two or a plurality of rails) laid for traveling, In addition, a device that moves the RMT 1 to other lanes in a container yard 15 such as a harbor provided with a plurality of lanes configured in parallel may be installed in contact with each lane. A carriage 50 for transporting the RMT 1 is provided.

  A lane moving device using a carriage according to a third aspect of the present invention includes a driving device 42, a rope 51 that is a towing tool such as a wire or a chain that is pulled by the power of the driving device 42, and the rope. And a cart 50 connected to the object 51.

  A lane movement apparatus using a carriage according to a fourth aspect of the invention includes the carriage 50 having a rail groove 45 corresponding to the RMT1.

  A lane movement apparatus using a carriage according to a fifth aspect of the invention includes a fixture for fixing the RMT 1 to the carriage 50.

  Specifically, the fixing tool includes a fixing pin 47 installed in the vicinity of the wheel of the RMT 1 and a hole-shaped or groove-shaped fixing groove 46 corresponding to the fixing pin 47 provided in the carriage 50. It is configured.

  Furthermore, the positioning pin 52 and the fixing groove 46 may be assisted by installing an alignment sensor 52 in the cart 50 for positioning when the RMT 1 is mounted on the cart 50. Is possible.

  The lane movement method using the carriage of the present invention eliminates necessary operations such as jacking up and turning when the RMT 1 moves between lanes compared to the conventional method, and the required time is shortened. In particular, RMT1 can be easily moved between lanes.

  Since it is not necessary for the RMT 1 to include the swivel device or the jack 36, it is possible to configure the RMT 1 with a simple mechanism. As a result, the factors causing the failure of RMT1 are reduced, and the maintainability is improved. In particular, the RMT 1 used in the container yard 15 such as a harbor is likely to be a machine with a simpler structure and less failure because the fatigue and deterioration of the metal become severe due to the influence of sea breeze, etc. It satisfies.

  Since the carriage 50 is configured to be moved by the external drive device 42 and the rope 51 such as a wire or a chain, the structure of the carriage 50 is simplified and the maintainability is improved.

  By fixing the RMT1 to the carriage 50 and using a fixture for preventing the RMT1 from overturning or falling off, it is possible to improve the stability of the RMT1 when the carriage 50 is operated and to increase the movement speed of the RMT1 between lanes. It became.

  By using the carriage 50 having the rail groove 45, the mounting of the RMT 1 was facilitated, and the stability when the carriage 50 was operated was improved.

  By installing the alignment sensor 52 on the carriage 50, the rail 13 and the rail groove 45 provided on the carriage 50 can be accurately and quickly aligned.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 is a schematic plan view of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a side view thereof. The first lane 21 and the second lane 22 are configured by a pair of parallel rails 13 and an RMT 1 corresponding to the lane is installed. The carriage 50 is installed to move so as to be in contact with the end of each lane.

  A cart 50 shown in FIG. 2 is connected to a driving device 42 installed on a moving line by a rope 51 which is a towing tool such as a wire or a chain, and the upper surface on which the RMT 1 is mounted is a container yard 15. It is about the same height as the ground plane 34.

  4 and 5 show a state in which the wheel 11 and the carriage 50 of the RMT 1 are fixed by the fixing pin 47 and the fixing groove 46. FIG.

  FIG. 6 shows the relationship between the wheel 11 of the RMT 1 and the rail groove 45 of the carriage 50, and the wheel 11 installed at the lower part of the RMT 1 via the axle 14 is guided to the rail groove 45 provided on the carriage 50. Yes.

  FIG. 9 is a schematic view when the RMT 1 is loaded and shows a state in which the RMT 1 which is a rail-mounted portal crane lifts the container 31 with the trolley 12 and mounts it on the waiting trailer 32. The RMT 1 uses the wheels 11 when moving.

  FIG. 10 is a side view of the RMT 1. The RMT 1 moves on the rail 13 by a plurality of wheels 11 installed via a support portion 35 disposed in the lower part.

  FIG. 11 shows a schematic diagram in which one of the embodiments of the present invention is applied to the container yard 15.

  As shown in FIG. 1, the RMT 1 is moved to the end of the second lane 22 and mounted on the carriage 50 installed adjacent to the end. Thereafter, the carriage 50 is operated via the rope 51 connected to the driving device 42, and the RMT 1 can be moved to the target lane, for example, moved to the first lane 21.

  As shown in FIG. 2, the carriage 50 is configured to be operated by a rope 51 for transmitting power and a driving device 42, and the upper surface of the carriage 50 is a rail corresponding to the wheel 11 of the RMT 1. A groove 45 is provided.

  As shown in FIG. 3, the rail 13 on which the RMT 1 travels and the upper surface of the carriage 50 are arranged at the same height, and the movement of the RMT 1 to the carriage 50 is made smooth.

  4 and 5 show a state of a fixture used for fixing the wheel 11 and the carriage 50 of the RMT 1. The RMT 1 has a fixing pin 47 mounted in the vicinity of the wheel 11, and a boring or groove-like fixing groove 46 corresponding to the fixing pin 47 is formed in the carriage 50. After the RMT1 is mounted on the carriage 50, the fixing pin 47 is pushed out by hydraulic pressure or the like and inserted into the fixing groove 46, so that the RMT1 can be fixed to the carriage. With this fixing tool, the fall of the RMT 1 and the prevention of wheel removal during the movement of the carriage 50 are realized. Further, when the moving speed of the carriage 50 is increased, a great effect can be obtained in preventing the fall of the RMT 1 and the wheel removal by the fixing tool.

  FIG. 6 shows an enlarged view of the wheel 11 when the RMT 1 is mounted on the carriage 50. The wheel 11 is installed in the lower part of RMT1 via the axle 14, and has a collar 18 on both side surfaces. Here, the carriage 50 includes a rail groove 45, and the rail groove 45 is formed to have the same height as the rail 13 constituting the lane, and the RMT 1 vibrates from the lane to the carriage 50. There are few, and it is possible to move smoothly in a stable state.

  In addition, the alignment sensor 52 allows the rail 13 and the rail groove 45 to be aligned quickly and accurately. By accurately performing this alignment, the RMT 1 does not derail from the rail 13 to the rail groove 45, and stable movement is possible in a state where there is little vibration or the like, and it is possible to eliminate the risk of falling or wheel removal. It has become.

  Furthermore, since the alignment sensor 52 can perform alignment quickly, the speed of movement of the RMT1 between lanes can be increased, and the efficient arrangement of the RMT1 in the container yard 15 can be quickly changed according to the situation. As a result, the container yard 15 with high cargo handling efficiency was realized.

  FIG. 11 shows one embodiment of the present invention. For example, when eight lanes are arranged in the container yard 15 as shown in FIG. 11, it is possible to move the RMT 1 between all lanes by installing the carriage 50 at the intermediate point. . Here, a plurality of carriages 50 can be installed.

  Further, as shown in FIG. 11, by providing the maintenance lane 49 for maintaining the RMT 1, the maintenance of the RMT 1 can be performed without affecting the cargo handling work. Further, the RMT 1 in the maintenance lane 49 is concentrated on the cargo handling work. Depending on the situation, it can be flexibly loaded into the lane that is running.

  As described above, the lane movement method and apparatus using the carriage of the present invention enables the RMT1 to move between lanes quickly and flexibly, and is realized by a structure and equipment with few failures and high maintainability. 15 enables efficient operation of RMT1.

It is the top view which showed the outline of the lane movement apparatus using the trolley | bogie of this invention. It is the front view which showed the outline of the lane movement apparatus using the trolley | bogie of this invention. It is the side view which showed the outline of the lane movement apparatus using the trolley | bogie of this invention. It is the schematic which showed the fixture installation condition which fixes RMT to a trolley | bogie. It is the schematic which showed the fixture installation condition which fixes RMT to a trolley | bogie. It is an enlarged view of a wheel peripheral part at the time of carrying RMT in a cart. It is the schematic of the conventional lane movement apparatus. It is the schematic which showed the whole container yards, such as a port. It is the schematic which showed the state of the cargo handling by RMT. It is a side view of RMT. It is an Example of the lane movement apparatus using the trolley | bogie of this invention.

Explanation of symbols

1 Rail-mounted portal crane (RMT)
11 Wheel 13 Rail 15 Container yard 45 Rail groove 46 Fixing groove 47 Fixing pin 50 Carriage 51 Tug 52 Position alignment sensor

Claims (5)

  A rail-mounted portal crane used for container transportation moves the rail-mounted portal crane to another lane in a container yard provided with a plurality of lanes configured with rails laid for traveling. The rail-mounted portal crane is moved and placed on a truck installed so as to connect the lanes, the carriage is operated, and the rail-mounted portal crane is moved to the destination lane. A lane moving method using a carriage, characterized by being moved.   A rail-mounted portal crane used for container transportation moves the rail-mounted portal crane to another lane in a container yard provided with a plurality of lanes configured with rails laid for traveling. A lane moving device using a carriage, comprising a carriage for transporting the rail-mounted portal crane installed in contact with each lane.   The carriage according to claim 2, comprising: a driving device; a rope such as a wire pulled by power of the driving device; and a carriage connected to the rope. Lane moving device.   The lane movement apparatus using a carriage according to claim 2 or 3, comprising the carriage having a rail groove corresponding to the rail-mounted portal crane.   The lane movement apparatus using a carriage according to any one of claims 2 to 4, further comprising a fixture for fixing the rail-mounted portal crane to the carriage.