WO2016158024A1 - Gantry crane and crane facility - Google Patents

Abstract

A gantry crane (1) is provided with: a pair of legs (8, 9) arranged in the left-right direction and capable of traveling in the front-rear direction; a girder (10) bridged between the legs (8, 9); a trolley (11) capable of travelling transversely along the girder (10); an operator's cab (31) for performing crane operation; and a passage (30) connected to the trolley (11) and connecting the trolley (11) and the operator's cab (31). The passage (30) is configured to have a portion extending straight in at least the vertical direction. Because of the portion extending straight vertically, the operator's cab (31) protrudes a smaller amount from the girder (10) in the front-rear direction than in the prior art gantry cranes, in each of which the entire passage is tilted downward, and as a result, the gantry crane (1) can be brought closer to an adjacent structure than the prior art gantry cranes.

Description

Gantry crane and crane equipment

The present invention relates to a gantry crane and crane equipment.

2. Description of the Related Art Conventionally, as a gantry crane (a portal crane), a structure in which a portal structure is constituted by a pair of legs arranged in the left-right direction and a girder spanned between the legs is known. (For example, refer to Patent Document 1). In this gantry crane, the portal structure can be moved in the front-rear direction, and the trolley is arranged on the upper surface of the girder so that the trolley can traverse, and the lifting / lowering work is performed using a lifting tool that can be moved up and down on the trolley. .

In such a gantry crane, a driver's cab for performing operations such as the above is generally connected to a trolley capable of traversing the upper surface of the girder via a passage portion. The passage portion connects the cab and the trolley so as to be able to go back and forth, and an inclined passage that is inclined obliquely downward from an end portion in the front-rear direction of the trolley is a general configuration (see Patent Document 1). (See FIG. 12).

Japanese Patent Laid-Open No. 2001-226073

In such a gantry crane, when it is desired to make the gantry crane as close as possible to a structure adjacent in the front-rear direction, the cab protrudes considerably from the girder in the front-rear direction. There was a limit to the proximity.

In particular, in crane facilities that have multiple gantry cranes and each gantry crane can travel in the front-rear direction, for example, in order to prepare for strong winds such as typhoons, the cranes are connected as close as possible in the front-rear direction There is. In this case, there is a limit to the proximity of adjacent driver's cabs.

The present invention has been made to solve such problems, and an object of the present invention is to provide a gantry crane and crane equipment that can approach a structure such as an adjacent gantry crane as compared with the prior art. And

A gantry crane according to an aspect of the present invention includes a pair of legs arranged in the left-right direction and capable of traveling in the front-rear direction, a girder spanned between the legs, a trolley capable of traversing along the girder, and a crane operation In a gantry crane provided with a cab for performing the operation and a passage portion connected to the trolley and connecting the trolley and the cab, the passage portion has at least a portion extending straight in the vertical direction. Yes.

According to such a gantry crane, the portion extending straight at least in the vertical direction of the passage portion is longer in the front-rear direction from the girder of the cab than in the case of the passage portion that is inclined downward as in the prior art. The amount of protrusion is reduced. Thus, the gantry crane can be closer to the adjacent structure than the prior art.

Here, when the passage portion extends straight in the vertical direction over the entire region from the upper end to the lower end, the amount of protrusion in the front-rear direction from the girder of the cab is further reduced, and further to the adjacent structure. Can be close.

Further, the portion of the passage portion that extends straight in the vertical direction may include a spiral staircase extending in the vertical direction. When such a configuration is adopted, even if the entrance is opened at any position in the vertical direction of the portion extending straight in the vertical direction of the passage portion, it can be transferred without difficulty from the entrance to the step of the internal spiral staircase. Can do. Accordingly, the vertical position of the entrance / exit is not restricted (the degree of freedom in design is improved), and the occupied area in the horizontal direction can be made smaller than the zigzag staircase or the like due to the spiral shape. In the case of a zigzag staircase, in order to be able to easily transfer from the entrance to the step of the zigzag staircase, the vertical position of the entrance / exit is restricted and the horizontal occupation area of the staircase becomes large.

Also, the crane equipment according to one aspect of the present invention is characterized in that a plurality of the gantry cranes are arranged in the front-rear direction.

According to such a crane facility, since a plurality of the gantry cranes are arranged in the front-rear direction, the gantry crane can be brought closer to the adjacent gantry crane than the prior art.

According to the present invention as described above, it is possible to provide a gantry crane and a crane facility that can approach a structure such as an adjacent gantry crane as compared with the prior art.

FIG. 1 is a perspective view showing a crane facility including a gantry crane according to a first embodiment of the present invention from the front side. FIG. 2 is a front view of FIG. FIG. 3 is a left side view of FIG. FIG. 4 is an enlarged schematic configuration diagram showing the driver's cab, the passage portion, and the vicinity thereof in FIG. FIG. 5 is a right side view of FIG. FIG. 6 is a schematic side view showing crane equipment provided with a gantry crane according to a second embodiment of the present invention. FIG. 7 is a schematic side view showing crane equipment provided with a gantry crane according to a third embodiment of the present invention. FIG. 8 is a schematic side view showing crane equipment including a gantry crane according to the fourth embodiment of the present invention.

Hereinafter, preferred embodiments of a gantry crane and crane equipment according to the present invention will be described with reference to the drawings. 1 is a perspective view showing a crane facility including a gantry crane according to a first embodiment of the present invention from the front side, FIG. 2 is a front view of FIG. 1, FIG. 3 is a left side view of FIG. 4 is a schematic configuration diagram showing an enlarged view of the driver's cab, the passage portion, and the vicinity thereof in FIG. 3, and FIG.

As shown in FIG. 1, a crane facility 100 according to the present embodiment is employed in a dock at a shipyard, and a gantry crane 1 that can travel along quays 4 and 5 with a dock 3 interposed therebetween. I have. The gantry crane 1 is a huge portal crane that can run on rails, and is also called a Goliath crane. On the quays 4 and 5, rails 6 and 7 are laid along the quays 4 and 5, respectively. These rails 6 and 7 are tracks for running the gantry crane 1. In addition, although the dock 3 arrange | positions the ship under construction or inspection and maintenance, for example, the gantry crane 1 of this embodiment is applicable also to a harbor etc. when there is no dock 3.

As shown in FIGS. 1 to 3, the gantry crane 1 includes a pair of leg portions 8 and 9 disposed on the quays 4 and 5, and a girder 10 spanned between the pair of leg portions 8 and 9, respectively. , And a main trolley (trolley) 11 and a supplementary trolley 12 that are movable along the girder 10. In the following description, the direction in which the rails 6 and 7 extend and the direction in which the gantry crane 1 travels is referred to as the front-rear direction, and the direction in which the girder 10 extends is perpendicular to the front-rear direction and the trolleys 11 and 12 are traversed. The direction that becomes the direction is called the left-right direction.

The pair of leg portions 8 and 9 are provided corresponding to the rails 6 and 7, respectively, and have different rigidity. The leg 8 functions as a rigid leg having higher rigidity than the leg 9, and the leg 9 functions as a swing leg having lower rigidity than the leg 8.

Traveling devices 13 for traveling along the rails 6 and 7 are provided at the lower end portions 8a and 9a of the leg portions 8 and 9, respectively. Two traveling devices 13 are provided at the front and rear of the leg portions 8 and 9, and one traveling device 13 is provided with, for example, 16 wheels. The quantities of the traveling device 13 and the wheels are not particularly limited, and other quantities may be used. The gantry crane 1 can travel in the front-rear direction by the travel device 13 moving on the rails 6 and 7.

The girder 10 has a substantially trapezoidal section, a double box type in which beams 10a (see FIG. 4) and 10b extending in the left-right direction are juxtaposed in the front-rear direction, and the left and right end portions are connected by connecting portions 10c and 10d. The girder.

As shown in FIG. 1, main trolley rails 16 are provided on the outer edges in the front-rear direction of the upper end surfaces of the beams 10a and 10b of the girder 10, respectively. Supplementary trolley rails 17 are provided on the inner edges in the front-rear direction of the upper end surfaces of the beams 10a and 10b, respectively. The main trolley rail 16 is a track for traversing the main trolley 11, and the auxiliary trolley rail 17 is a track for traversing the auxiliary trolley 12.

The main trolley 11 lifts or suspends a cargo handling object such as cargo. As shown in FIGS. 1 and 3, the main trolley 11 forms a bridge shape in the left-right direction and extends in the front-rear direction. And a pair of legs 21 and 21 projecting downward from both ends of the support base 20 in the front-rear direction. The support base 20 is disposed above the top surface 10 e of the girder 10. Between the support base 20 and the top surface 10e of the girder 10, a space that allows the auxiliary trolley 12 to traverse in the left-right direction is formed. A traverse device 23 provided with a plurality of wheels is provided at the lower end of the leg 21. As the traversing device 23 moves on the main trolley rail 16, the main trolley 11 can traverse in the left-right direction (see FIG. 4).

As shown in FIG. 1 to FIG. 3, two hoisting machines 19 for raising and lowering the wire rope 18 used for cargo handling are juxtaposed on the support base 20 in the front-rear direction. Moreover, the sheave 22 which rotates according to raising / lowering of the wire rope 18 is each provided in the front-back direction outer side of a pair of leg parts 21 and 21 (refer FIG.4 and FIG.5). As shown in FIGS. 3 and 4, the sheave 22 is disposed so as to protrude from the top surface 10 e of the girder 10 on both sides in the front-rear direction across the girder 10. The wire rope 18 sent out from the hoisting machine 19 is guided by a sheave 22 and is in a state of hanging down outside in the front-rear direction of the girder 10 as shown in FIGS. 1 to 3 and 5. Hanging beams 60 are provided at both lower ends of the wire ropes 18 on both sides in the front-rear direction so as to be hung horizontally. And the handling by the hanging beam 60 can be performed by operating the hoisting machine 19 and raising or lowering the wire rope 18.

As shown in FIGS. 1 to 3, the auxiliary trolley 12 is used to suspend the main trolley 11 and the cargo handling object together, or to suspend the cargo handling object alone. As with the main trolley 11, the auxiliary trolley 12 includes a wire rope used for cargo handling and a hoisting machine that moves the wire rope up and down. The auxiliary trolley 12 can be traversed in the left-right direction when the traversing device moves on the rails 17 for the auxiliary trolley. The auxiliary trolley 12 can pass through a space formed between the support base 20 of the main trolley 11 and the top surface 10 e of the girder 10.

In addition, although the gantry crane 1 is provided with the auxiliary trolley 12 here, it is not necessarily required to be provided with the auxiliary trolley 12. Therefore, in the following description, the main trolley 11 will be referred to as the trolley 11 and described.

As shown in FIGS. 1 to 5, a cab 31 is connected to the trolley 11 via a passage portion 30. The passage portion 30 is for a person (driver or the like) to go back and forth, and extends straight in the vertical direction. Specifically, as shown in FIG. 4, the passage portion 30 includes a cylindrical outer wall 32 that extends straight in the vertical direction, and a spiral staircase 33 that is provided inside the outer wall 32 and extends in the vertical direction. The spiral staircase 33 is provided in the outer wall 32 and is not visible from the outside, but is drawn here with a solid line for easy understanding. And such a channel | path part 30 is located in the left end part side of the left-right direction of the trolley 11, as shown in FIG.1 and FIG.5. In this position, as shown in FIGS. 1 and 4, the upper portion of the passage portion 30 is connected to the front end portion of the trolley 11 in the front-rear direction. That is, the passage portion 30 extends vertically downward along the front end surface of the girder 10 from the front end portion of the trolley 11 in the front-rear direction. Further, the lower end of the passage portion 30 reaches the lower end of the girder 10, and is a vertical portion that extends straight in the vertical direction over the entire region from the upper end to the lower end of the passage portion 30.

As shown in FIGS. 4 and 5, an entrance / exit 34 is located above the support base 20 of the trolley 11 above the outer wall 32 of the passage portion 30 so as to be movable between the support base 20 of the trolley 11. Opened. An opening / closing door 35 is provided for the entrance / exit 34. In addition, an entrance / exit 37 is provided at a position below the entrance / exit 34 of the outer wall 32 of the passage portion 30 and above the traversing device 23 of the trolley 11 so as to be movable between the horizontal passage 36 provided in the trolley 11. Opened. An opening / closing door 38 is provided for the entrance / exit 37. At the end of the horizontal passage 36 of the trolley 11 opposite to the entrance 37, there is provided an up and down staircase 39 that extends in the vertical direction and reaches the top surface 10e of the girder 10.

The driver's cab 31 is a room where the driver performs all operations of the crane operation including the trolley operation and the like, and the operating part is located below the lower surface of the girder 10 so that the crane operation can be easily performed. In this cab 31, an opening is formed in the upper wall. Through this opening, as shown in FIG. 4, the spiral staircase 33 is configured to enter the cab 31 as it is. The driver can go back and forth between the trolley 11 and the girder 10 using the spiral staircase 33. In addition, although the approach part into the cab 31 of the spiral staircase 33 is provided in the cab 31 and cannot be seen from the outside, it is drawn with a solid line here for easy understanding.

Then, the driver or the like can go back and forth between the spiral staircase 33 and the support base 20 of the trolley 11 via the entrance / exit 34, thereby enabling inspection on the support base 20. Also, the driver can go back and forth between the spiral staircase 33 and the girder 10 via the entrance / exit 37, the horizontal passage 36, and the up / down staircase 39, thereby enabling inspection on the girder 10 and the like.

According to the gantry crane 1 of this embodiment, the passage portion 30 extends straight in the vertical direction over the entire region from the upper end to the lower end. Therefore, the amount of protrusion of the cab 31 from the girder 10 in the front-rear direction is smaller than in the case of the passage portion that inclines downward as a whole in the prior art, and can be closer to the adjacent structure than in the prior art.

Further, according to the present embodiment, the passage portion 30 extending straight in the vertical direction includes the spiral staircase 33 extending in the vertical direction. Thereby, even if it opens the entrance / exit (entrance 34, 37 in this embodiment) in any position of the passage part 30 in the vertical direction, it can transfer to the step of the spiral staircase 33 from the entrance without any trouble. Accordingly, the vertical position of the entrance / exit is not restricted (the degree of freedom in design is improved), and the occupied area in the horizontal direction can be made smaller than the zigzag staircase or the like due to the spiral shape. In the case of a zigzag staircase, in order to be able to easily transfer from the entrance to the zigzag staircase step, the vertical position of the entrance / exit is restricted, and the horizontal occupation area of the staircase increases. End up.

In the present embodiment, the passage portion 30 is connected to the end portion in the front-rear direction of the trolley 11 as being particularly preferable, but may be connected to the upper portion, and in short, the passage portion 30 may be connected to the trolley 11. It ’s fine.

FIG. 6 is a schematic side view showing crane equipment provided with a gantry crane according to a second embodiment of the present invention.

The difference between the gantry crane 51 of the second embodiment and the gantry crane 1 of the first embodiment is that the passage portion 30 that extends straight in the vertical direction over the entire region from the upper end to the lower end is used as the passage portion 50. It is. The passage portion 50 is connected to the trolley 11 and is inclined obliquely downward, and is connected to the lower end of the inclined portion 40 so as to extend straight in the vertical direction and to be connected to the cab 31. Is provided.

Also in the second embodiment, the passage portion 50 has the vertical portion 41 that is a portion extending straight in the vertical direction. Therefore, the amount of protrusion in the front-rear direction from the girder 10 of the cab 31 is smaller than in the case where the entire prior art is a downwardly inclined passage portion, and the adjacent structure can be brought closer to the adjacent structure.

It should be noted that the spiral staircase 33 is provided only in the vertical portion 41 that extends straight in the vertical direction. The spiral staircase 33 of the vertical portion 41 has the same operations and effects as the spiral staircase 33 of the first embodiment.

Here, in a crane facility that has a plurality of gantry cranes and each gantry crane can travel in the front-rear direction, the cranes are connected as close as possible in the front-rear direction to prepare for strong winds such as typhoons, for example. There is a case. An embodiment of a crane facility that addresses this will be described below.

FIG. 7 is a schematic side view showing a crane facility including a gantry crane according to the third embodiment of the present invention. In this crane facility 101, the gantry crane 1 of the first embodiment is overlapped in the front-rear direction. 2 units.

A pair of rails 6 and 7 (refer to the first embodiment) on which the gantry crane 1 travels are provided separately for each gantry crane 1 and 1 so that the gantry cranes 1 and 1 are as close as possible in the front-rear direction. ing. A pair of rails 6 and 7 of the other gantry crane 1 are laid adjacent to the left and right direction (perpendicular to the plane of FIG. 7) of the pair of rails 6 and 7 of one gantry crane 1.

In addition, here, in both the two gantry cranes 1, 1, the passage portion 30 and the cab 31 are arranged on the same side in the front-rear direction (here, the front side on the right side in the drawing) with the girder 10 interposed therebetween.

According to such a crane facility 101, two gantry cranes 1 of the first embodiment in which the protruding amount in the front-rear direction of the cab 31 is small are arranged side by side in the front-rear direction. From this, even if the two passages 30 and the cab 31 are arranged on the same side (front side) in the front-rear direction with the girder 10 sandwiched therebetween, the adjacent gantry cranes 1 and 1 are connected to each other according to the conventional technology (the whole The two gantry cranes have a passage portion inclined downward, and the two passage portions and the driver's cab can be closer to each other in the front-rear direction when the passage portion and the cab are arranged on the same side in the front-rear direction with the girder therebetween. Therefore, for example, in preparation for strong winds such as typhoons, adjacent gantry cranes 1 and 1 can be connected as close as possible in the front-rear direction.

FIG. 8 is a schematic side view showing crane equipment provided with a gantry crane according to a fourth embodiment of the present invention. In this crane facility 102, one gantry crane 1 is provided so as to overlap in the front-rear direction with respect to the crane facility 101 of the third embodiment.

The two adjacent gantry cranes 1, 1 in the center and the left side of the figure are the same in the front-rear direction with the girder 10 sandwiched between the passage portion 30 and the cab 31 as in the case of FIG. It is arranged on the left side and the rear side. The remaining adjacent gantry crane 1 on the right side in the figure and the cab 31 are arranged on the opposite side in the front-rear direction (here, on the right side in the figure) with the girder 10 in between.

According to such a crane facility 102, the two adjacent gantry cranes 1, 1 at the center and the left side in the figure are the same as in the case of FIG. Can be close in direction. The remaining one adjacent passage portion 30 and cab 31 on the right side in the figure are arranged on the opposite side in the front-rear direction with the girder 10 interposed therebetween, so the remaining one gantry crane 1 is on the left side in the figure. Can be closest to the gantry crane 1 adjacent to.

In addition, even if all the passage parts 30 and the cab 31 of the three gantry cranes 1, 1, 1 are arranged on the same side in the front-rear direction with the girder 10 sandwiched therebetween, the conventional technique (the whole is inclined downward) Needless to say, in a gantry crane having a passage portion, the passage portion and the operator's cab can be closer to each other in the front-rear direction than when the passage portion and the cab are arranged on the same side in the front-rear direction. Of course, the present invention can also be applied to a crane facility in which four or more gantry cranes 1 are juxtaposed.

As mentioned above, although this invention was concretely demonstrated based on the embodiment, this invention is not limited to the said embodiment. For example, in FIG.7 and FIG.8, although the several gantry crane is made into the gantry crane 1 of 1st Embodiment, it can also be set as the gantry crane 51 of 2nd Embodiment. Also in this case, the adjacent gantry cranes 51 can be brought closer in the front-rear direction than the prior art.

In the above embodiment, the gantry crane is particularly preferably a large Goliath crane, but it can be applied to a gantry crane other than the Goliath crane.

DESCRIPTION OF SYMBOLS 1,51 ... Gantry crane, 8, 9 ... Leg part, 10 ... Girder, 11 ... Trolley, 30, 50 ... Passage part, 31 ... Driver's cab, 33 ... Spiral staircase, 40 ... Inclined part, 41 ... Vertical part, 100 , 101, 102 ... Crane equipment.

Claims (4)

A pair of legs arranged in the left-right direction and capable of traveling in the front-rear direction;
Girder spanned between the legs,
A trolley capable of traversing along the girder;
A cab for crane operation,
In a gantry crane provided with a passage portion connected to the trolley and connecting the trolley and the cab.
The said channel | path part has a part extended at least to the perpendicular direction at least, The gantry crane characterized by the above-mentioned. 2. The gantry crane according to claim 1, wherein the passage portion extends straight in the vertical direction over the entire region from the upper end to the lower end. The gantry crane according to claim 1 or 2, wherein a portion of the passage portion extending straight in the vertical direction includes a spiral staircase extending in the vertical direction. A crane installation comprising a plurality of gantry cranes according to any one of claims 1 to 3 arranged in the front-rear direction.

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