JP6392158B2 - Gantry crane and crane equipment - Google Patents

Description

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

  Conventionally, as a gantry crane (a portal crane), a portal structure is configured by legs arranged in a pair in the left-right direction and girder spanned between the legs, and the portal structure is moved forward and backward. It is known that a trolley can be traversed on the upper surface of a girder and can be lifted / suspended using a lifting tool that can be moved up and down on the trolley (for example, Patent Document 1). reference).

  In such a gantry crane, a driver's cab that performs operations such as the above-described operations is generally connected via a passage to a trolley that can traverse the upper surface of the girder. 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).

JP 2001-226073 A

  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 However, in this case, the adjacent cab is in the way and there is a limit to the proximity.

  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 the present invention includes a leg portion that is disposed in the left-right direction and that can travel in the front-rear direction, a girder that spans between the leg portions, a main trolley that can traverse along the girder, and a crane operation An auxiliary trolley capable of traversing along the girder and passing under the main trolley , and a gantry crane having a cab for the vehicle and a passage section connected to the main trolley and connecting the main trolley to the cab . A wire rope from the main trolley for hanging a hanging tool that hangs down and hangs outward from the girder in the front-rear direction by being hung around a sheave provided on the main trolley. , the passage unit with located outside the girder in the longitudinal direction, spaced from the wire rope in the horizontal direction, have a straight extending though said and Turkey vertically

According to such a gantry crane, since the passage is straight extending lead straight direction, than in the passage portion the entire prior art tilted downward, the protruding amount of the front-rear direction from the girders of the cab Smaller and closer to adjacent structures 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.

  Moreover, it is preferable that the part of the passage portion extending straight in the vertical direction includes 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. Therefore, there is no restriction on the vertical position of the entrance / exit (the degree of freedom in design is improved), and the occupied area in the horizontal direction can be made smaller than a 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.

  The crane equipment according to the present invention is characterized in that a plurality of the above gantry cranes are arranged in the front-rear direction.

  According to such a crane facility, a plurality of the gantry cranes are juxtaposed in the front-rear direction, so that the gantry crane can be closer to the adjacent gantry crane than in 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.

It is a perspective view which shows the crane installation provided with the gantry crane which concerns on 1st Embodiment of this invention from the front side. It is a front view of FIG. It is a left view of FIG. It is a schematic block diagram which expands and shows the cab and channel | path part in FIG. 3, and its vicinity. FIG. 5 is a right side view of FIG. 4. It is a schematic side view which shows the crane equipment provided with the gantry crane which concerns on 2nd Embodiment of this invention. It is a schematic side view which shows the crane installation provided with the gantry crane which concerns on 3rd Embodiment of this invention. It is a schematic side view which shows the crane installation provided with the gantry crane which concerns on 4th Embodiment of this 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. 5 is a right side view of 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 legs 8 and 9 disposed on the quays 4 and 5, and a girder 10 spanned between the pair of legs 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. 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 is a double box type in which the 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 the connecting portions 10c, 10d. It is 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 10 a and 10 b of the girder 10, and the inner edges in the front-rear direction of the upper end surfaces of the beams 10 a and 10 b. On the top, auxiliary trolley rails 17 are provided. 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 10e of the girder 10, and a space is formed between the top surface 10e of the girder 10 and the auxiliary trolley 12 can be traversed in the left-right direction. A traverse device 23 provided with a plurality of wheels is provided at the lower end of the leg portion 21, and the main trolley 11 can traverse in the left-right direction when the traverse device 23 moves on the main trolley rail 16. (See FIG. 4).

  As shown in FIGS. 1 to 3, two hoisting machines 19 for raising and lowering the wire rope 18 used for cargo handling are juxtaposed in the front-rear direction on the support base 20. 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. A suspension beam 60 is provided so as to be suspended horizontally at both lower ends of the wire ropes 18 on both sides. 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 for suspending the main trolley 11 and a cargo handling object together, or for suspending a cargo handling object alone. And a hoisting machine for raising and lowering the wire rope, and the traversing device moves on the auxiliary trolley rail 17 so that it can traverse in the left-right direction. 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.

  Here, although the gantry crane 1 includes the auxiliary trolley 12, it is not always necessary to include 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. Such a passage portion 30 is located on the left end side in the left-right direction of the trolley 11 as shown in FIGS. 1 and 5, and at this position, as shown in FIGS. 1 and 4, the passage portion 30. Is connected to the front end of the trolley 11 in the front-rear direction. That is, the passage portion 30 extends vertically downward from the front end in the front-rear direction of the trolley 11 along the front end surface in the front-rear direction of the girder 10, and the lower end thereof reaches the lower end of the girder 10. This is a vertical portion that extends straight in the vertical direction over the entire area from the upper end to the lower end.

  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. An opening / closing door 35 is provided with respect to 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. An opening / closing door 38 is provided for the entrance 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 cab 31 is a room where the driver performs all the operations of the crane operation including the trolley operation and the like, and the operation unit is positioned 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, and as shown in FIG. 4, the spiral staircase 33 enters the cab 31 as it is through the opening, and the driver or the like 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.

  The driver or the like can go back and forth between the spiral staircase 33 and the support table 20 of the trolley 11 via the entrance / exit 34, thereby enabling inspection on the support table 20, etc. The spiral staircase 33 and the girder 10 can be moved back and forth through 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, since the passage portion 30 extends straight in the vertical direction over the entire region from the upper end to the lower end, the entire prior art of the passage portion that inclines downward. The amount of protrusion of the cab 31 from the girder 10 in the front-rear direction is smaller than in the case, and the adjacent structure can be closer than the conventional technique.

  In addition, according to the present embodiment, the passage portion 30 that extends straight in the vertical direction includes the spiral staircase 33 that extends in the vertical direction inside, so that the entrance / exit (main) In the embodiment, even if the entrances 34 and 37) are opened, it is possible to transfer from the entrance to the step of the spiral staircase 33 inside 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 connected to the trolley 11 and obliquely. It is the point made into the channel | path part 50 provided with the inclination part 40 which inclines toward the downward direction, and the perpendicular part 41 connected with the lower end of this inclination part 40, and extending to a perpendicular direction, and being connected with the driver's cab 31. .

  Also in the second embodiment, since the passage portion 50 has the vertical portion 41 that is a portion extending straight in the vertical direction, the driver's cab is more than in the case of the passage portion in which the entire prior art is inclined downward. The amount of protrusion in the front-rear direction from the girder 10 of 31 is reduced, and the adjacent structure can be brought closer than in the prior art.

  The spiral staircase 33 is provided only in the vertical portion 41 extending straight in the vertical direction, and the spiral staircase 33 of the vertical portion 41 has the same operations and effects as the spiral staircase 33 of the first embodiment. Play.

  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. The pair of rails 6 and 7 of the other gantry crane 1 are laid adjacent to the left and right direction of the pair of rails 6 and 7 of one gantry crane 1 (the vertical direction in FIG. 7).

  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 equipment 101, since two gantry cranes 1 of the first embodiment with a small amount of protrusion in the front-rear direction of the cab 31 are arranged side by side in the front-rear direction, both of the two gantry cranes 1 And even if the cab 31 is arranged on the same side (front side) in the front-rear direction with the girder 10 in between, the adjacent gantry cranes 1 and 1 are connected to each other in the related art (a gantry having a passage portion that is inclined downwards as a whole). The two cranes can be closer in the front-rear direction than when the passage part 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 which shows the crane installation provided with the gantry crane which concerns on 4th Embodiment of this invention, In this crane installation 102, one crane is further provided with respect to the crane installation 101 of 3rd Embodiment. A gantry crane 1 is provided so as to overlap in the front-rear direction.

  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. The passage part 30 and the cab 31 of the other adjacent right gantry crane 1 shown in the figure on the left side (rear side on the left side) are on the opposite side in the front-rear direction with the girder 10 in between (here, the front side on the right side in the figure). Each is arranged.

  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. The one adjacent passage portion 30 and the cab 31 on the right side in the figure that can be close in the direction are arranged on the opposite side in the front-rear direction with the girder 10 interposed therebetween, so the remaining one gantry crane 1 can be closest to the gantry crane 1 adjacent to the left side of the figure in the front-rear direction.

  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.

  Although the present invention has been specifically described above based on the embodiment, the present invention is not limited to the above embodiment. For example, in FIGS. 7 and 8, a plurality of gantry cranes are provided in the first embodiment. Although it is set as the gantry crane 1 of this, 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 a large Goliath crane as being particularly preferable, 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, a girder spanned between the legs, a main trolley traversing along the girder, and a cab for performing crane operation A gantry crane having a passage portion connected to the main trolley and connecting the main trolley and the cab,
An auxiliary trolley capable of traversing along the girder and passing under the main trolley;
A wire rope from the main trolley for hanging a hanging tool that hangs down and extends outward from the girder in the front-rear direction by being hung around a sheave provided on the main trolley. And comprising
It said passage portion, the with located outside the said girder in longitudinal direction, the allowed transverse direction spaced from the wire rope, gantry cranes, wherein a straight extending though Turkey vertically.   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.   3. The gantry crane according to claim 1, wherein a portion of the passage portion that extends straight in a 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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