JP2009242090A - Belt conveyor type lane moving method and device of rail mount type portal crane - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize efficient operation of an RMT1 (a rail mount type portal crane) 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 in a short time. <P>SOLUTION: The RMT1 is moved on a belt conveyor 40 arranged so as to connect the mutual lanes, and the belt conveyor 40 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 belt conveyor type lane moving method according to the first aspect of the present invention includes an RMT 1 used for transporting a box-shaped container, which is composed of two parallel rails laid for traveling. In this method, the RMT 1 is moved to another lane in a container yard 15 such as a harbor provided with a plurality of lanes, and the RMT 1 is moved on a belt conveyor 40 installed so as to connect the lanes. It is mounted, the belt conveyor 40 is operated, and the RMT 1 is moved to the destination lane.

  The belt conveyor type lane moving device according to the invention of claim 2 is provided with a plurality of lanes composed of two parallel rails laid for traveling by the RMT 1 used for box-shaped container transportation. A device that moves the RMT1 to another lane in a container yard 15 such as a harbor, and is provided with a belt conveyor 40 that is installed in contact with each lane and that transports the RMT1. To do.

  The belt conveyor type lane moving apparatus according to the invention described in claim 3 is characterized in that the belt conveyor 40 is arranged in contact with the end of each lane.

  The belt conveyor type lane moving device according to the invention of claim 4 is a plate-like object 43 having a rail groove 45 corresponding to the RMT1, a connection rubber 44 for connecting and connecting the plate-like object 43, and The caterpillar 41 having the above is provided.

  A belt conveyor type lane moving device according to a fifth aspect of the invention includes a fixing tool for fixing the RMT 1 to the belt conveyor.

  Specifically, the fixing tool 47 has a fixing pin 47 installed in the vicinity of the wheel 11 of the RMT 1 and a fixing member 47 having a hole shape or a groove shape corresponding to the fixing pin 47 provided on the plate-like object 43. A groove 46 is used.

  Furthermore, the positioning sensor 52 is positioned on the belt conveyor 40 for positioning when the RMT 1 is mounted on the belt conveyor 40, thereby assisting the connection between the fixing pin 47 and the fixing groove 46. It is also possible.

  By the belt conveyor type lane moving method of the present invention, when the RMT 1 moves between lanes, necessary operations such as jacking up and turning are eliminated, and the required time is shortened and more flexible. In addition, 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.

  By fixing the RMT1 to the belt conveyor 40 and using a fixture for preventing the RMT1 from overturning or removing the wheel, the stability of the RMT1 during the operation of the belt conveyor 40 is improved and the movement speed of the RMT1 between lanes is increased. Became possible.

  By using the caterpillar 41 provided with the plate-like object 43 having the rail groove 45, the mounting of the RMT 1 was facilitated, and the stability when the belt conveyor 40 was operated was improved. Further, the portion other than the RMT1 mounting portion of the caterpillar 41 is not necessarily provided with the plate-like object 43. For example, the structure of the belt conveyor 40 can be simplified by being configured with the caterpillar substitute 48 such as rubber or chain-like material. It became possible to make it easier to maintain.

  By positioning the alignment sensor 52 on the belt conveyor 40, preferably on the plate-like object 43, it is possible to accurately and quickly align the rail 13 and the rail groove 45 provided on the plate-like object 43. .

  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. A belt conveyor 40 is installed so as to contact the end of each lane.

  In the belt conveyor 40 shown in FIG. 2, a plate-like object 43 provided with a rail groove 45 corresponding to the wheel 11 of the RMT 1 is connected by a connection rubber 44, and a place where the RMT 1 is not scheduled to be installed is a caterpillar substitute. A caterpillar 41 to which an object 48 is connected and a driving device 42 are provided.

  4 and 5 show a state where the wheels 11 of the RMT 1 and the plate-like object 43 of the belt conveyor 40 are fixed by the fixing pins 47 and the fixing grooves 46.

  FIG. 6 shows the relationship between the wheel 11 of the RMT 1 and the rail groove 45 of the belt conveyor 40, and the wheel 11 installed on the lower part of the RMT 1 via the axle 14 is provided on the plate 43 of the caterpillar 41. It is guided to the groove 45.

  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 view in which the belt conveyor 40 is installed in 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 belt conveyor 40 installed adjacent to the end. Thereafter, the caterpillar 41 of the belt conveyor 40 is operated, and the RMT 1 can be moved to the target lane, for example, moved to the first lane 21.

  The belt conveyor 40 includes a caterpillar 41 in which plate-like objects 43 and connecting rubbers 44 are alternately connected, and a driving device 42, and the plate-like object 43 includes rail grooves 45 corresponding to the wheels 11 of the RMT 1. . Here, a part of the caterpillar 41 may be constituted by a caterpillar substitute 48 such as a rubber belt or a chain instead of the plate-like object 43 and the connecting rubber 44.

  As shown in FIG. 2, the caterpillar 41 is configured to be operated by the driving device 42, and a place where there is no possibility of mounting the RMT 1 of the caterpillar 41, for example, a part constituting the lower half of the caterpillar 41 shown in FIG. The caterpillar substitute 48 can be used, whereby the structure of the belt conveyor 40 can be simplified and the cost can be reduced.

  As shown in FIG. 3, the rail 13 on which the RMT 1 travels and the upper surface of the caterpillar 41 are arranged to have the same height, and the movement of the RMT 1 to the caterpillar 41 is made smooth.

  4 and 5 show a state of a fixture using the wheel 11 and the caterpillar 41 of the RMT 1 for fixing. The RMT 1 has a fixing pin 47 mounted near the wheel 11, and a hole-like or groove-like fixing groove 46 corresponding to the fixing pin 47 is formed in the plate-like object 43. After mounting the RMT 1 on the caterpillar 41, the fixing pin 47 is pushed out by hydraulic pressure or the like and inserted into the fixing groove 46, so that the RMT 1 can be fixed to the caterpillar 41. By this fixing tool, the fall of the RMT 1 and the prevention of the wheel removal during the movement of the belt conveyor 40 are realized. Further, when the moving speed of the belt conveyor 40 is increased, the fixing tool can provide a great effect for preventing the RMT 1 from falling and removing the wheel.

  FIG. 6 shows an enlarged view of the wheel 11 when the RMT 1 is mounted on the caterpillar 41. 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 plate-like object 43 is provided with 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 caterpillar 41. It is possible to move smoothly in a stable state.

  In addition, the alignment sensor 52 can quickly align the rail 13 and the rail groove 45. Therefore, the movement speed of RMT1 between lanes is increased, and the efficient arrangement of RMT1 in the container yard 15 can be quickly changed according to the situation, and as a result, the container yard 15 having high cargo handling efficiency can be provided. did.

  FIG. 11 shows one embodiment of the present invention. For example, when eight lanes are arranged in the container yard 15 as shown in the figure, it is possible to move the RMT 1 between all lanes by installing the belt conveyor 40 at an intermediate point. .

  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 belt conveyor type lane moving method and apparatus according to the present invention allows the RMT 1 to move between lanes quickly and flexibly, and is realized by a structure and equipment with few failures and high maintainability. RMT1 can be operated efficiently within the company.

It is the top view which showed the outline of the belt conveyor type lane moving apparatus of this invention. It is the front view which showed the outline of the belt conveyor type lane moving apparatus of this invention. It is the side view which showed the outline of the belt conveyor type lane moving apparatus of this invention. It is the schematic which showed the fixture installation condition which fixes RMT to a belt conveyor. It is the schematic which showed the fixture installation condition which fixes RMT to a belt conveyor. It is an enlarged view of a wheel peripheral part at the time of mounting RMT on a belt conveyor. 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 belt conveyor type lane moving apparatus of this invention.

Explanation of symbols

1 Rail-mounted portal crane (RMT)
11 Wheel 15 Container Yard 40 Belt Conveyor 41 Caterpillar 43 Plate Material 44 Connecting Rubber 45 Rail Groove 46 Fixing Groove 47 Fixing Pin 48 Caterpillar Alternative

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. A method of moving and placing the rail-mounted portal crane on a belt conveyor installed so as to connect the lanes, operating the belt conveyor, and moving the rail-mounted portal to the destination lane. A belt conveyor type lane moving method characterized by moving a crane.   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 belt conveyor type lane moving device comprising a belt conveyor for transporting the rail-mounted portal crane installed in contact with each lane.   The belt conveyor type lane moving device according to claim 2, wherein a belt conveyor is disposed in contact with each lane end.   3. A caterpillar comprising a plate-like object having a rail groove corresponding to the rail-mounted portal crane and a connecting rubber for connecting and connecting the plate-like object. The belt conveyor type lane moving device according to claim 3.   The belt conveyor type lane moving apparatus according to claim 2, further comprising a fixing tool for fixing the rail-mounted portal crane to a belt conveyor.

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