JP2021084754A - Yard moving machine - Google Patents

Abstract

To provide a yard moving machine capable of enlarging a turning range of a boom.SOLUTION: A yard moving machine 100 comprises: a boom 20; a belt conveyor 22 provided to the boom 20; a first supporting part 24 for elevatably supporting the boom 20; a second supporting part 26 for supporting the first supporting part 24 so as to rotate around a first axis A1 extending in a vertical direction; and a running machine body 28 for supporting the second supporting part 26 so as to rotate around a second axis A2 extending in the vertical direction and provided so as to move on a rail 14 extending in a first direction X. Viewing from the upper side, the first axis A1 and the second axis A2 are separated from each other.SELECTED DRAWING: Figure 1

Description

The present invention relates to a yard mobile device.

In port facilities, various yard mobile devices such as stackers and reclaimers are used. For example, raw materials (loose objects) such as iron ore landed from a cargo ship are transported by a belt conveyor and then loaded into a yard (sedimentation yard) by a stacker. The raw materials loaded in the yard are discharged by the reclaimer to a belt conveyor for transporting to the next process. Further, conventionally, a yard moving machine having a stacker function and a reclaimer function has also been used (see, for example, Patent Document 1).

Yard movers such as those described above for loading and / or paying out loose objects are generally placed on rails provided along the yard. The yard mover loads and / or dispenses loose objects at a desired position in the yard by moving on rails and raising and lowering and turning the boom.

Japanese Unexamined Patent Publication No. 2011-195298

By the way, as described in Patent Document 1, in the yard moving machine as described above, the turning range of the boom is usually limited by structural restrictions. For this reason, there may be a dead space in the yard where loose objects cannot be stacked. In particular, when the moving range of the yard moving machine is limited, it may not be possible to move the tip of the boom to a desired position, and dead space is likely to occur.

In order to suppress the occurrence of dead space in the yard, it is conceivable to lengthen the rail to widen the range of movement of the yard moving machine, or to arrange two yard moving machines with different structures on the common rail. Be done. However, there is a problem that the equipment cost increases.

Therefore, an object of the present invention is to provide a yard moving machine capable of increasing the turning range of the boom.

The gist of the present invention is the following yard moving machine.

(1) Boom and
The belt conveyor installed on the boom and
The first support part that supports the boom up and down, and
A second support portion that rotatably supports the first support portion around a first axis extending in the vertical direction, and a second support portion.
It is provided with a traveling machine body that rotatably supports the second support portion around a second axis extending in the vertical direction and is movably provided on a rail extending in the first direction.
A yard moving machine in which the first axis and the second axis are separated from each other when viewed from above.

(2) The second support portion is the first support so that the first axis can move to one side and the other side of the second axis in the second direction orthogonal to the first direction when viewed from above. The yard moving machine according to (1) above, which rotatably supports the portion around the second axis.

(3) A tripper that can move together with the traveling machine and lifts a transport belt provided on the ground upward.
Further equipped with a belt feeder for receiving the transported material dropped from the transport belt lifted by the tripper.
The belt feeder is configured to be capable of transporting the transported object to the one side and the other side in the second direction.
The yard movement according to (2) above, wherein the first support portion rotates around the first axis so as to maintain a state in which the conveyed object dropped from the belt feeder can be received by the belt conveyor. Machine.

(4) When the first axis is located on the one side of the second axis in the second direction, the first support portion is an end portion of the belt feeder on the one side when viewed from above. And the belt conveyor are rotated around the first axis so as to maintain the overlapping state.
When the first axis is located on the other side of the second axis in the second direction, the first support portion is the other end of the belt feeder and the belt when viewed from above. The yard moving machine according to (3) above, which rotates around the first axis so as to maintain a state in which the conveyor overlaps.

(5) The second support portion includes a lower support portion that supports the lower portion of the first support portion and an upper support portion that supports the upper portion of the first support portion, from (1) to (4). ) The yard mover described in any of.

(6) Further provided with a depression / elevation device for raising / lowering the boom and an operation room for operating the elevation / elevation device.
The yard moving machine according to any one of (1) to (5) above, wherein the operation room is supported by the first support portion.

According to the present invention, the turning range of the boom of the yard moving machine can be increased.

FIG. 1 is a schematic side view showing a side view showing a yard moving machine according to an embodiment of the present invention. FIG. 2 is a plan view showing a usage example of the yard moving machine. FIG. 3 is a schematic front view showing a central portion of the first support portion. FIG. 4 is a schematic plan view showing the positional relationship between the belt conveyor, the first support portion, the second support portion, the belt feeder, the first axis, and the second axis. FIG. 5 is a diagram for explaining the operation of the yard moving machine. FIG. 6 is a diagram for explaining the operation of the yard moving machine. FIG. 7 is a diagram for explaining the operation of the yard moving machine. FIG. 8 is a diagram for explaining the operation of the yard moving machine. FIG. 9 is a diagram for explaining the operation of the yard moving machine. FIG. 10 is a diagram for explaining the operation of the yard moving machine.

Hereinafter, the yard moving machine according to the embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a side view showing a yard moving machine according to an embodiment of the present invention. In addition, in FIG. 1, each component of the yard moving machine 100 is shown in a simplified manner in order to avoid complicating the drawing. FIG. 2 is a diagram showing a usage example of the yard moving machine, and is a view of the yard moving machine viewed from above.

As shown in FIGS. 1 and 2, in the present embodiment, the yard moving machine 100 is a transported object (for example, a raw material such as iron ore) which has been transported by an endless transport belt 10 provided on the ground. Is a stacker for stacking the yard 12a and 12b (see FIG. 2).

As shown in FIG. 2, in the present embodiment, a pair of rails 14 are provided between the two rectangular yards 12a and 12b so as to extend along the longitudinal direction of the yards 12a and 12b. Further, a pair of transport belts 10 are provided between the pair of rails 14. In the following, the extending direction of the rail 14 will be referred to as the first direction X. Further, in the transport direction of the transported object by the transport belt 10, the downstream side is the front side and the upstream side is the rear side.

In the present embodiment, the two yard moving machines 100 are arranged on a common pair of rails 14. The goods carried by one of the transport belts 10 are loaded in the yards 12a and 12b by one yard moving machine 100, and the goods carried by the other transport belt 10 are yarded by the other yard moving machine 100. It is loaded on 12a and 12b. Hereinafter, the yard moving machine 100 will be described in more detail.

As shown in FIG. 1, the yard moving machine 100 includes a boom 20, a belt conveyor 22, a first support portion 24, a second support portion 26, a traveling machine body 28, a tripper 30, a belt feeder 32, an elevation device 34, and an operation room. It has 36.

The belt conveyor 22 is provided on the boom 20. The belt conveyor 22 has a transport belt 22a for transporting the transported object. Since various known boom and belt conveyor configurations can be used for the boom 20 and the belt conveyor 22, detailed description of the boom 20 and the belt conveyor 22 will be omitted.

The boom 20 is supported by the first support portion 24 so as to be elevated. FIG. 3 is a schematic view showing a central portion of the first support portion 24 in the vertical direction. As shown in FIGS. 1 and 3, the first support portion 24 has a plate-shaped bottom surface portion 24a, a pillar portion 24b extending upward from the bottom surface portion 24a, and a connecting portion 24c extending diagonally upward from the pillar portion 24b. , And a pillar portion 24d extending upward from the connecting portion 24c.

As shown in FIG. 3, the pillar portion 24b has an inverted U shape, and a cavity portion 24e is formed between the bottom surface portion 24a and the pillar portion 24b. With reference to FIGS. 1 and 3, a boom 20 is provided so as to pass through the cavity 24e.

As shown in FIG. 1, in the present embodiment, one end portion (end portion on the traveling machine body 28 side) in the length direction of the boom 20 can swing in the vertical direction via the swing support member 38. It is supported by 24a. Further, the central portion of the boom 20 in the length direction is supported by the pillar portion 24d via the wire rope 34a of the elevation device 34.

In the present embodiment, the wire rope 34a can be unwound and rewound by the wire drum 34b of the elevation device 34. As a result, the boom 20 can be raised and lowered with the swing support member 38 as a fulcrum. The elevation device 34 is remotely controlled by an operator from the operation room 36. The operation chamber 36 is supported by the pillar portion 24d. The configuration of the elevation device is not limited to the configuration shown in FIG. 1, and various known elevation devices can be used.

The second support portion 26 rotatably supports the first support portion 24 around the first axis A1 extending in the vertical direction. In the present embodiment, the second support portion 26 includes a plate-shaped lower support portion 26a that supports the lower portion of the first support portion 24 (a portion below the center in the vertical direction) and an upper portion of the first support portion 24. It has a plate-shaped upper support portion 26b that supports (a portion above the center in the vertical direction).

In the present embodiment, the lower support portion 26a rotatably supports the bottom surface portion 24a around the first shaft A1 via the shaft member 40. In the present embodiment, for example, the upper end portion of the shaft member 40 is fixed to the bottom surface portion 24a, and the lower end portion of the shaft member 40 is rotatably supported by the lower support portion 26a via a bearing (not shown).

A through hole is formed in the upper support portion 26b, and the pillar portion 24d of the first support portion 24 is inserted through the through hole. In the present embodiment, the pillar portion 24d has a cylindrical shape, and the upper support portion 26b rotatably supports the pillar portion 24d around the first axis A1 via a bearing 42. As described above, in the present embodiment, the first support portion 24 can be stably supported by supporting the upper portion and the lower portion of the first support portion 24 by the second support portion 26.

In the present embodiment, for example, the pillar portion 24d can be rotated by a drive device (not shown) provided on the upper support portion 26b. As a result, the first support portion 24 rotates around the first axis A1, and the boom 20 and the belt conveyor 22 rotate around the first axis A1. The first support portion 24 may be rotated by rotating the shaft member 40 by a drive device (not shown) provided on the lower support portion 26a. In the present embodiment, the drive device is remotely controlled from the operation room 36 by, for example, an operator. Since various known drive devices can be used as the drive device, detailed description thereof will be omitted.

The traveling machine body 28 rotatably supports the second support portion 26 around the second axis A2 extending in the vertical direction. In the present embodiment, the traveling machine body 28 includes a main body 28a, a plurality of traveling devices 28b supporting the main body 28a, a support column 28c extending upward from the main body 28a, and a fixing portion fixed to the upper end of the support column 28c. It has 28d.

The main body portion 28a rotatably supports the lower support portion 26a of the second support portion 26 around the second shaft A2 via the shaft member 44. In the present embodiment, for example, the upper end portion of the shaft member 44 is fixed to the lower support portion 26a, and the lower end portion of the shaft member 44 is rotatably supported by the main body portion 28a via a bearing (not shown).

The fixing portion 28d rotatably supports the upper support portion 26b around the second shaft A2 via the shaft member 46. In the present embodiment, for example, the upper end portion of the shaft member 46 is fixed to the upper support portion 26b, and the lower end portion of the shaft member 46 is rotatably supported by the fixed portion 28d via a bearing (not shown).

In the present embodiment, for example, the shaft member 46 can be rotated by a drive device (not shown) provided on the fixed portion 28d. As a result, the second support portion 26 (upper support portion 26b) and the first support portion 24 rotate around the second axis A2, and the boom 20 and the belt conveyor 22 rotate around the second axis A2. The second support portion 26 (lower support portion 26a) may be rotated by rotating the shaft member 44 by a drive device (not shown) provided in the main body portion 28a. In this case as well, the first support portion 24 rotates around the second axis A2, and the boom 20 and the belt conveyor 22 rotate around the second axis A2. In the present embodiment, the drive device is remotely controlled from the operation room 36 by, for example, an operator. Since various known drive devices can be used as the drive device, detailed description thereof will be omitted.

Each traveling device 28b has a plurality of wheels and is arranged on the rail 14. In the present embodiment, the yard moving machine 100 has two traveling devices 28b provided on one rail 14 (see FIG. 2) and two traveling devices 28b provided on the other rail 14. Have. The traveling device 28b includes a driving device (not shown). When any of the wheels is rotationally driven by the driving device, the traveling device 28b moves on the rail 14 in the first direction X. As a result, the traveling machine body 28 moves in the first direction X. That is, the yard moving machine 100 moves in the first direction X.

Although detailed description will be omitted, the column 28c has an inverted U shape similar to the column portion 24b (see FIG. 3). The tripper 30 is provided so as to pass through the inside of the pillar portion 24b.

Although the traveling machine body 28 is shown in a simplified manner in FIG. 1, each part may be composed of a plurality of constituent members. Since various known configurations of the traveling aircraft can be used for the traveling aircraft 28, detailed description of the traveling aircraft 28 will be omitted.

The tripper 30 is configured to lift a part of the transport belt 10 provided on the ground upward. In the present embodiment, a part of the transport belt 10 is pulled out obliquely upward by the tripper 30 so that the transported object is dropped from the transport belt 10 at the upper end of the tripper 30. The tripper 30 is connected to the traveling machine body 28 and is configured to move a pair of rails 14 in conjunction with the traveling machine body 28. Since various known trippers can be used as the tripper, detailed description thereof will be omitted.

The belt feeder 32 is configured to receive the transported object dropped from the transport belt 10 lifted by the tripper 30. In the present embodiment, the belt feeder 32 conveys the conveyed object by the endless conveying belt 32a. Although detailed description is omitted, the belt feeder 32 is supported by the traveling machine body 28.

FIG. 4 shows the conveyor belt 22a of the belt conveyor 22, the bottom surface 24a of the first support 24, the lower support 26a of the second support 26, the conveyor belt 32a of the belt feeder 32, the first axis A1 and the second axis. It is the schematic (the view seen from above) which showed the positional relationship of A2. In the following description, the direction orthogonal to the first direction X when viewed from above is referred to as the second direction Y.

The belt feeder 32 is configured to be capable of transporting the transported object to one side (yard 12a side) and the other side (yard 12b side) in the second direction Y. In the present embodiment, the transport belt 32a is rotationally driven in one direction and the other direction by a drive device (not shown) to transport the transported object to one side and the other side in the second direction Y. In the present embodiment, the drive device is remotely controlled from the operation room 36 by, for example, an operator.

In the present embodiment, when the transported object is loaded on the yard 12a, the second support portion 26 is rotated toward the yard 12a around the second axis A2, and then the first support portion is centered on the first axis A1. 24 is rotated.

Specifically, first, as shown in FIG. 5, the first axis A1 is located on one side (yard 12a side) of the second axis A2 in the second direction Y, centering on the second axis A2. 2 The support portion 26 is rotated toward the yard 12a. In the present embodiment, the second support portion 26 is rotated toward the yard 12a so that the first axis A1 and the second axis A2 are located on the same straight line parallel to the second direction Y when viewed from above. Let me.

Next, as shown in FIGS. 6 and 7, the first support portion 24 is rotated forward or backward about the first axis A1. As a result, the boom 20 (see FIG. 1) and the belt conveyor 22 supported by the first support portion 24 rotate forward or backward. After fixing the first support portion 24 at a desired position, the conveyed object is dropped onto the belt conveyor 22 (conveyed belt 22a) from the end of the belt feeder 32 (conveyed belt 32a) on the yard 12a side. The transported object dropped on the belt conveyor 22 is dropped on the yard 12a from the tip of the belt conveyor 22. In this way, the loading work for the yard 12a is performed.

In the present embodiment, as shown in FIGS. 5 to 7, the first support portion 24 has a first shaft so as to maintain a state in which the belt conveyor 22 can receive the conveyed material dropped from the belt feeder 32. Rotate around A1. More specifically, the first support portion 24 is in a state in which the end of one side (yard 12a side) of the belt feeder 32 (conveyor belt 32a) and the belt conveyor 22 (conveyor belt 22a) overlap when viewed from above. Rotate around the first axis A1 so as to maintain. As a result, the transported object dropped from the belt feeder 32 can be reliably received by the belt conveyor 22.

When the transported object is loaded on the yard 12b, the second support portion 26 is rotated toward the yard 12b around the second axis A2, and then the first support portion 24 is rotated around the first axis A1.

Specifically, first, as shown in FIG. 8, the first axis A1 is centered on the second axis A2 so as to be located on the other side (yard 12b side) of the second axis A2 in the second direction Y. 2 The support portion 26 is rotated toward the yard 12b. In the present embodiment, the second support portion 26 is rotated toward the yard 12b so that the first axis A1 and the second axis A2 are located on the same straight line parallel to the second direction Y when viewed from above. Let me.

Next, as shown in FIGS. 9 and 10, the first support portion 24 is rotated forward or backward about the first axis A1. As a result, the boom 20 (see FIG. 1) and the belt conveyor 22 supported by the first support portion 24 rotate forward or backward. After fixing the first support portion 24 at a desired position, the conveyed object is dropped onto the belt conveyor 22 (conveyed belt 22a) from the end of the belt feeder 32 (conveyed belt 32a) on the yard 12b side. The transported object dropped on the belt conveyor 22 is dropped on the yard 12b from the tip of the belt conveyor 22. In this way, the loading work for the yard 12b is performed.

In the present embodiment, as shown in FIGS. 8 to 10, the first support portion 24 maintains a state in which the belt conveyor 22 can receive the conveyed material dropped from the belt feeder 32. Rotate around A1. More specifically, the first support portion 24 is in a state in which the end of the belt feeder 32 (conveyor belt 32a) on the other side (yard 12b side) and the belt conveyor 22 (conveyor belt 22a) overlap when viewed from above. Rotate around the first axis A1 so as to maintain. As a result, the transported object dropped from the belt feeder 32 can be reliably received by the belt conveyor 22.

(Effect of this embodiment)
As described above, in the present embodiment, the rotation shaft of the first support portion 24 that supports the boom 20 (first axis A1) and the rotation shaft of the second support portion 26 that supports the first support portion 24 (second axis). The axis A2) is separated from the axis A2) when viewed from above. As a result, as described with reference to FIGS. 5 to 10, the boom 20 is moved in the second direction Y orthogonal to the first direction X (moving direction of the yard moving machine 100). Can be swiveled. In this case, as compared with the conventional yard moving machine, it is possible to sufficiently suppress that the turning range of the boom 20 is limited by other components of the yard moving machine 100. In particular, since a large number of structural members are arranged on the rear side of the yard moving machine, the turning range of the boom to the rear side is greatly limited in the conventional yard moving machine. On the other hand, in the yard moving machine 100 according to the present embodiment, since the boom 20 can be turned in a state where the first axis A1 is moved in the second direction Y, the structural member on the rear side of the yard moving machine 100 can be used. It is possible to sufficiently suppress the limitation of the turning range of the boom 20. Therefore, in the yard moving machine 100 according to the present embodiment, the turning range of the boom 20 can be sufficiently increased.

(Modification example)
In the above-described embodiment, the case where the present invention is applied to the stacker has been described, but the yard moving machine according to the present invention is not limited to the stacker. The present invention can be applied to various yard moving machines that load and / or dispense from a yard by utilizing a belt conveyor supported by a boom. Therefore, the present invention may be applied to a reclaimer that discharges loose objects or the like from the yard, or the present invention may be applied to a yard moving machine having a stacker function and a reclaimer function.

According to the present invention, the turning range of the boom of the yard moving machine can be increased.

10 Conveyor belt 12a, 12b Yard 14 Rail 20 Boom 22 Belt conveyor 24 1st support 26 2nd support 28 Traveling machine 30 Tripper 32 Belt feeder 34 Elevating device 36 Operation room A1 1st axis A2 2nd axis

Claims (6)

With the boom
The belt conveyor installed on the boom and
The first support part that supports the boom up and down, and
A second support portion that rotatably supports the first support portion around a first axis extending in the vertical direction, and a second support portion.
It is provided with a traveling machine body that rotatably supports the second support portion around a second axis extending in the vertical direction and is movably provided on a rail extending in the first direction.
A yard moving machine in which the first axis and the second axis are separated from each other when viewed from above. The second support includes the first support so that the first axis can move to one side and the other of the second axis in a second direction orthogonal to the first direction when viewed from above. The yard moving machine according to claim 1, which is rotatably supported around a second axis. A tripper that can move with the traveling machine and lifts a transport belt provided on the ground upward.
Further equipped with a belt feeder for receiving the transported material dropped from the transport belt lifted by the tripper.
The belt feeder is configured to be capable of transporting the transported object to the one side and the other side in the second direction.
The yard moving machine according to claim 2, wherein the first support portion rotates around the first axis so as to maintain a state in which the belt conveyor can receive the conveyed material dropped from the belt feeder. .. When the first axis is located on the one side of the second axis in the second direction, the first support portion is the one-sided end portion of the belt feeder and the belt when viewed from above. Rotate around the first axis so as to maintain the state of overlapping with the conveyor.
When the first axis is located on the other side of the second axis in the second direction, the first support portion is the other end of the belt feeder and the belt when viewed from above. The yard moving machine according to claim 3, which rotates around the first axis so as to maintain a state in which the conveyor overlaps with the conveyor. The second support portion according to any one of claims 1 to 4, wherein the second support portion includes a lower support portion that supports the lower portion of the first support portion and an upper support portion that supports the upper portion of the first support portion. Yard mover. A depression / elevation device for raising / lowering the boom and an operation room for operating the depression / elevation device are further provided.
The yard moving machine according to any one of claims 1 to 5, wherein the operation room is supported by the first support portion.

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