JPH06199489A - Gate-shaped main girder penetrating-type rotary crane - Google Patents

Abstract

PURPOSE:To meet various styles of packings under all weather by installing a U-shaped post where a T-shaped main girder is mounted at its upper end in a horizontal direction and fixed at its central part on a gate-shaped lower part traveling element which travels on a track through a rotating base, and arranging a winding trolley which passes through the inside of the U-shaped post and can travel in a horizontal direction on the main girder. CONSTITUTION:A U-shaped post 6 is installed vertically on a gate-shaped lower traveling element 4 which can travel on a track laid in parallel to a quay line so as to be rotated through a rotating base 5. A main girder 7 which intersects with the upper frame of the U-shaped post 6 and penetrates its inside is fixed at the central part in a horizontal direction. A winding trolley 8 is provided on the main girder 7 so as to travel in a horizontal direction is mounted for constituting a crane. Loading/unloading between a ship 10 which is brought into contact with a quay and a loading/unloading place 12 is carried out by combining traveling of the winding trolley 8 in a horizontal direction, winding/ unwinding by a winding device 18, and rotation of the U-shaped post, 6 by a rotation drive device 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a gate-type main unit suitable for indoor / outdoor transportation of steel products of various cargo types or for cargo handling in a space with a height x frontage restriction such as a covered quay. Girder through type swivel crane.

[0002]

2. Description of the Related Art Conventionally, equipment designed so that cargo handling can be carried out under the overhanging roof of a quay building under all weather conditions is one in which an overhead crane of the building is moved onboard. In the case where the overhead crane travels above the hatch of the ship at a height lower than the upper end of the mast of the ship, as shown in Fig. 5, the overhead crane is moved to the quay inside the building at the end of loading and unloading for traveling the overhead crane. A structure is adopted in which the track girder is stored on the quay in a hinged manner (for example, JP-A-3-61293).

[0003]

However, in the case of loading and unloading steel products such as heavy-duty steel plate coils and plate materials, the conventional equipment as described above uses a large span overhead crane as a swing-out type pair. Since the trolley that runs on the track girder of the above and traverses the trolley that suspends a heavy load on the main girder of the overhead crane, the swing-out type track girder requires a strong structure, and the overhead crane and the track girder are extended and stored. However, there is still an unavoidable risk due to vibration caused by traveling and traversing of the overhead crane. In addition, since the load is transported between the ship and the building by the parallel movements of traveling, traversing, hoisting and lowering of the overhead crane, the locus of the cargo occupies a wide space, and the risk during transportation increases unspecified. There is a problem such as.

The present invention has been proposed in view of the above circumstances, and simplifies the movement between the operating position and the storage position of the crane, reduces the space and danger of the load carrying path of the crane, and reduces the weather. It is an object of the present invention to provide an economical gantry type main girder penetrating swivel crane capable of efficiently responding to various types of packing below.

[0005]

To this end, the present invention provides a U-shaped post having a gate-shaped lower traveling body that can travel on a track and a three-dimensional space provided on the lower traveling body so as to be rotatable via a swivel base. And a main girder that crosses the upper end of the U-shaped post and extends horizontally in a T-shape and has a central portion fixedly supported on the upper end of the U-shaped post, and passes through the U-shaped post on the main girder. And a hoisting trolley provided so as to be traversable.

[0006]

According to this structure, the load is hoisted by the hoisting trolley, the trolley is traversed from one end of the main girder to the other end, and the hoisted load is passed between the U-shaped posts. Both the cargo handling and the jib crane type cargo handling in which the load is hoisted by the hoisting trolley and the main girder is rotated to move the load to the opposite side can be performed. In the loading and unloading of steel products, relatively small and heavy steel sheet coils, etc. can be efficiently transported in the shortest distance and time by combining the former traverse of the trolley, traveling of the crane, and hoisting. In the handling of long materials such as rods, pipes, etc., the latter jib crane-type turning, crane traveling, and hoisting can be combined to efficiently convey products. At the end of loading and unloading, the main girder is rotated to stop the U-shaped post in a direction parallel to the track. The total height of the crane is constant during both loading and unloading operations, and the crane can be easily moved to the stowed position, which is particularly suitable when the total height of the crane is limited, such as with a quay crane with a roof. Becomes

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of the present invention will be described. FIG. 1 is an overall plan view thereof, FIG. 2 is a side view taken along the line II--II of FIG. 1, FIG. 3 is a plan view of FIG. FIG. 4 is a front view taken along the line IV-IV of FIG. 3.

First, in FIG. 1, reference numerals 1 and 1 designate tracks which are laid parallel to the quay line 2, and 3 designates a swivel base 5 on a gate-shaped lower traveling body 4 which is provided so as to be able to travel on the tracks 1 and 1. A U-shaped post 6 erected so as to be pivotable via the U-shaped post 6 is provided. The U-shaped post 6 intersects with the upper frame of the U-shaped post 6 and penetrates the inside in the horizontal direction. A crane according to the present invention constituted by hoisting a hoisting trolley 8 on a girder 7, 10 is a ship berthed for loading and unloading on the quay, and 11 is provided on the quay on the land side of the crane 3. A transport line such as a product transport truck, 12 is a loading / unloading area at the end of the transport line, 13 is a building on the quay land, 14 is a building 13 to a ship 10
It is an overhanging roof that overhangs. Crane 3 is overhanging roof 1
Under 4 and in a state of being surrounded by a suspension wall or the like, the cargo is loaded or unloaded from or to the ship 10 under all weather conditions.

2 to 4, reference numeral 15 is a traveling motor, 16 is a swing drive device for the U-shaped post 6, 17 is a hoisting device installed on the main girder 7, and 18 is a drum of the hoisting device 17. To the end sheave 19 of the main girder, sheave 2 on the trolley 8
The hoisting rope whose front end is fixed to the connecting portion 22 at the rear end of the main girder via 0 and 21, 23 is a hoisting tool that is moved up and down by the hoisting hoist 18 from the trolley 8, and 24 is a load carried by the hoisting tool 23. , That is, the product.

In such a structure, the hoisting trolley 8
Is equipped with a traverse motor, as shown in FIG.
Between the front end (left side) and the rear end (right side) of the U-shaped post 6 through the upper end of the frame, and the hoisting device 17 is stopped at this time so that the lifting device 23 is kept at a constant height. When the hoisting device 17 is tilted and traversed and the hoisting device 17 is driven for hoisting or lowering, the trolley 8 can traverse and the lifting device 23 can be moved up and down as shown by an arrow 25. At this time, as shown in FIG. 4, the load 24 hung on the hanger 23 is placed in the space between the U-shaped posts 6 at the height of an arrow 25 in FIG. Be transported to.

At this time, the load 24 is hoisted and traversed in parallel, and as shown by the chain line in FIG. 1, the U-shaped post 6 and the main girder 7 are swung by a required amount, or further the lower traveling body of the crane is operated. When the trolley 8 is moved by the required distance, the trolley 8 can carry the load 24 in an oblique direction on the main girder 7 from the hoisting position on the side of the ship 10 to the load transfer place 12 with the minimum time and the shortest distance. As a result, the cargo handling cycle time is shortened, and the cargo handling can be speeded up.

At the end of loading and unloading, the crane 3 can be put into the retracted state by merely stopping the U-shaped frame 6 and the main girder 7 at the 7'position (two-dot chain line) parallel to the quay line 2 in FIG. it can. In the above-described device, the crane height is constant during loading and unloading of the crane, and depending on the size of the load to be handled, the bridge-type crane-like load transfer in which the U-shaped post does not rotate depending on the form and the U-shaped post are carried. Since it can be used as a jib-crane-like transport that turns the car, it is possible to carry it with high efficiency in a place where the area is limited by the roof and the building, such as a covered quay. As a result, the transport path can be in the main girder direction and the half-turn direction on one side, which has the effect of reducing the dangerous space. In addition to the quayside crane, the above-mentioned crane is also effective as a factory or in-yard crane.

[0013]

According to such an apparatus, the height of the crane is low, the outreach can be easily taken, and the transport route can be selected according to the packing form, the space occupied by the transport route, and the roof quay with less danger Alternatively, a crane suitable for transporting various steel structure products can be obtained.

In short, according to the present invention, a gate-shaped lower traveling body that can travel on a track, a U-shaped post having a three-dimensional space provided on the lower traveling body so as to be rotatable via a swivel base, and the same U-shaped post.
A main girder that intersects the upper end of the die post and extends horizontally in a T shape, and the center part is fixedly supported on the upper end of the U post, and can traverse through the U post on the main girder. The hoisting trolley provided at the location simplifies the movement between the operating position and the storage position of the crane, reduces the space and danger of the load carrying trajectory of the crane, and allows for a variety of loads under all weather conditions. INDUSTRIAL APPLICABILITY The present invention is extremely useful industrially because an economical portal type main girder penetrating swivel crane capable of efficiently responding to appearance is obtained.

[Brief description of drawings]

FIG. 1 is an overall plan view showing an embodiment of the present invention.

FIG. 2 is a side view taken along the line II-II of FIG.

FIG. 3 is a plan view of FIG.

FIG. 4 is a front view taken along the line IV-IV in FIG.

FIG. 5 is a perspective view showing various operating modes of the all-weather quayside crane proposed in Japanese Patent Laid-Open No. 3-61293.

[Explanation of symbols]

 1 orbit 2 quay 3 crane 4 lower traveling body 5 swivel platform 6 U-shaped post 7 main girder 8 hoisting trolley 10 ship 11 land transportation line 12 cargo unloading site 13 building 14 overhanging roof 15 traveling motor 16 turning drive 17 hoisting device 18 hoisting rope 23 lifting tool 24 load (product) 25 load transfer trajectory

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsunosuke Kodama 3434 Shimada, Hikari City, Yamaguchi Prefecture Shin Nippon Steel Co., Ltd. at the Hikari Steel Works (72) Inventor Toshiyuki Tanaka 20-1 Shintomi, Futtsu, Chiba Shin Nippon Steel Stock Company Equipment Technology Center

Claims (1)

[Claims] 1. A gate-type undercarriage capable of traveling on a track,
A U-shaped post having a three-dimensional space provided on the lower traveling body so as to be rotatable via a swivel base and a U-shaped post that intersects the upper end of the U-shaped post and extends horizontally in a T shape. A gate-type main girder penetrating swivel crane, comprising: a main girder fixedly supported at the upper end of the post; and a hoisting trolley provided on the main girder so as to traverse through the U-shaped post.