JPH10310368A - Cargo handling device using crane - Google Patents

Abstract

PROBLEM TO BE SOLVED: To handle both bulk material and containers efficiently in a cargo handling device using a crane. SOLUTION: A hopper 53 of a hopper car 40 is positioned below a grab bucket 30 of a bridge type multipurpose crane 10. One end of the hopper car 40 is suspended from a cross beam 17 at one end of the crane 10, and the other end of the hopper car 40 is placed on a rail of the crane 10 through a wheel 43 outside of the crane 10. A vehicle 100 receiving bulk material from the hopper 53 travels between sea side legs 41, 42 and land side legs 41, 42. In case of handling a container, jacks of the legs 41 are used for installation, and connection of a connecting device 20 is released. The container is handled in a position without the hopper car 40. The wheel 43 is moved up to reduce a space between a pair of legs 42, 42. The crane 10 can therefore travel getting over a relay device so as to enlarge a cargo handling range of the crane 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for loading and unloading containers and bulk materials using a crane, and more particularly to a cargo handling device suitable for a multipurpose crane for both.

[0002]

2. Description of the Related Art A multipurpose crane uses a container hanger when loading a container, and uses a grab bucket as a hanger when handling bulk materials. The hanger can be easily replaced.

[0003] When handling bulk materials using a grab bucket, a hopper is installed near a crane. Unload the bulk in the grab bucket, supply the bulk to the hopper,
The bulk material is supplied from the hopper to a vehicle (dump truck, etc.) below the hopper. Transport bulk materials to destination by vehicle.

[0004] In a container handling apparatus, there is a container handling apparatus in which a container suspended by a hanging tool is lowered to a vehicle via a guide device in order to easily place the container on the vehicle. In addition, a temporary storage table for a plurality of containers is provided, and the container of the temporary storage table is mounted on a lower vehicle by a second crane (Japanese Patent Laid-Open Publication No. 1-110479).

As described above, a relay device such as a hopper and a container holder is provided between the crane and the vehicle.

[0006]

When a hopper is installed on a crane, the handling of bulk materials becomes easy, but it becomes a hindrance when handling containers.

Some cranes and hoppers are separated. In this case, since the hopper runs between the two rails of the crane, both the foundation of the two rails and the foundation of the road surface between these rails need to be high-strength, and the foundation cost is high. .

[0008] The same applies to the case where a container holder is provided instead of the hopper.

[0009] It is an object of the present invention to enable both bulk handling and container handling to be performed efficiently.

[0010]

The object of the present invention is to provide a crane having legs running on two rails, one end of which is detachably suspended from the crane in the traveling direction of the crane, and the other end of which is suspended by the crane. A relay device having wheels running on the two rails, wherein the one end side of the relay device and a position for receiving a load from the crane are located between one end and the other end of the crane in the traveling direction. In between, the other end of the relay device is outside the other end of the crane in the traveling direction, and the one end of the relay device, when the support is released, the two rails A first leg that is in contact with the ground between the two rails, the distance between the two second legs having each of the wheels is provided so as to be stretchable, and the two rails are provided at the other end of the relay device. Touching the ground between And a third leg that can Rukoto, when decreasing spacing said second leg, said crane may be achieved by, that can travel beyond the relay device.

According to this, the relay device can be easily attached and detached. When a relay device is connected, a large amount of cargo can be handled. If the relay device is removed, other loads can be handled in large quantities. Also, if the relay device is supported by the first leg and the third leg with the relay device removed, and the distance between the second legs is reduced, the crane can travel over the relay device, and the cargo handling range Can be expanded.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIGS.
0 will be described. In this embodiment, bulk materials unloaded by a multipurpose crane are loaded on a vehicle via a hopper of a relay device.

The crane 10 is a known bridge-type multi-purpose crane, and runs on rails 35 and 35. Crane 10
Has an electric motor and can run. The trolley 15 runs on the girder 13 supported by the four legs 11. When loading and unloading a container, the trolley 15 suspends a hanging device for the container. When handling bulk materials, the trolley 15 suspends the grab bucket 30.

Sea-side leg 11 and land-side leg 1 of crane 10
1 is connected by cross beams 17 and 18. Cross beams 17, 18
Is located higher than the hopper car 40. Hopper Car 4
Reference numeral 0 denotes a bulky relay device.

The hopper car 40 is a traveling body having a hopper 53. The hopper car 40 is supported by four legs 41 and 42. The rear leg 42 has wheels 43 running on the rails 35, 35. The number of wheels is determined as appropriate. Front 2
The width of the hopper car 40, such as the distance between the legs 41, 41 and the width of the hopper 53, is smaller than the distance between the sea-side leg 11 and the land-side leg 11 of the crane 10. When unloading bulk materials, the front legs 41, 41 are placed on the ground. Legs 41, 41
A jack 44 is provided at the lower end of the housing. To prevent the hopper car 40 from moving by the wind,
The lower end of 41 is placed in a recess 59 provided in the ground.

The cross beams 45 and 45b connecting the sea-side leg and the land-side leg of the hopper car 40 are used for the vehicle 10 for transporting loose objects.
It is at a position higher than 0. The distance between the sea-side and land-side legs,
In particular, the distance between the forward sea-side leg 41 and the land-side leg 41 is a sufficient distance for the vehicle 100 to travel. Forward leg 41
And the rear leg 42 are connected by a beam 50. Beam 5
Reference numeral 0 denotes a gantry. The hopper 53 is mounted on two beams 50. The bulk material outlet below the hopper 53 is the gate 5
It is opened and closed with 5. Below the hopper 53, a vehicle 100 carrying loose objects passes. The configuration of the hopper 53 is known.

The front end of the hopper car 40 is at a high position so that it can be connected to the cross beam 17 in front of the crane 10. There are two connecting pieces 49 connected to the cross beam 17 and a horizontal hole 49
a is provided. The connecting piece 49 is connected to the beam 50.

A hopper car 40 is provided under the front cross beam 17.
Are suspended from each other. The connecting device 20 includes two sets of plates 21 located on both sides of each connecting piece 49.
And a horizontal hole (not shown) provided in each plate, a pin (not shown) which enters the hole and the hole 49a of the plate 21, and a cylinder device 23 for moving the pin horizontally. The cylinder device 23 is installed on one plate 21 of each set.

When the hopper car 40 is connected to the crane 10, the hopper 53 moves on the traveling path of the trolley 15 (the girder 13).
Located below. That is, it is located below the grab bucket 30. The rear leg 42 is the rear leg 1 of the crane 10.
It is located further back than 1.

In FIG. 8, two rear legs 42, 42 are provided.
Is an inverted L-shape when viewed from the running direction. The horizontal piece 42b of the leg 42 is supported in the rear cross beam 45b. The horizontal piece 42b can move inside the cross beam 45b in the horizontal direction (the direction perpendicular to the running direction). A drive device (for example, a cylinder device) (not shown) for moving the legs 42, 42 is installed inside the cross beam 45b.

Two legs 47, 47 are provided at both ends of the cross beam 45b.
Is installed. A jack 47 is provided at the lower ends of the legs 47 and 47.
a, 47a are installed. The jack 47a can be placed in a recess 59a in the ground. The legs 47, 47 are on an extension of the legs 41, 41 in the traveling direction of the hopper car 40. The legs 47, 47 may be installed on the lower surfaces of the beams 50, 50.

When container handling is performed, as shown in FIGS. 3, 4, 6, and 7, the hopper car 40 is separated from the crane 10 and is located at a position where the container handling is not hindered. The rear leg 42 rests on the rail 35 and the front leg 41 is placed in a recess 59 in the ground (road surface of the vehicle) via a jack 44. 105 is a container suspended from the trolley 15.

When carrying bulk cargo, the hopper car 40
The crane 10 moves toward. Jacks 44,44
And the crane 10 and the coupling device 20
Align the holes. Next, the pin is inserted into the hole 49a by driving the cylinder device 23. Next, the jack 44 is contracted and its lower end is separated from the ground. Next, the crane 10 pulls the hopper car 40 and travels toward the position of the ship. The crane 10 supplies loose objects to the hopper 53 by the grab bucket 30. As shown in FIG. 1, FIG. 2, and FIG.
Enters from between the rear legs 42 and 42 and stops below the hopper 53. When receiving the loose object, it goes out of the crane 10 through the front legs 41 and 41. The hopper car 40 travels as the crane 10 travels. During loading, the crane 10 may push the hopper car 40. Including this case is called traction.

According to this, when handling bulk goods, the weight of the hopper car 40 is reduced by the legs 11 in front of the crane 10,
And the rail 3 through the rear leg 42 of the hopper car 40.
It is conveyed to 5, 35. Although the load on the foundation of the rails 35, 35 increases, a pair of rails 35, 3
The basic cost can be reduced as compared with the case where the vehicle is supported on the road surface of the vehicle 5. In addition, the length of the beam 50 at one end of the hopper car 40 can be reduced, and the weight can be reduced.

When loading the container, the crane 10 moves to the standby position of the hopper car 40 and removes the hopper car 40. The leg 41 is landed by the jack 44 and the connecting device 20 is released. The crane 10 moves to the position of the ship and loads the container. Since the crane 10 is dedicated to the container, the space between the four legs 11 is wide, and the container can be efficiently loaded. On the other hand, since the hopper car 40 is connected during bulk handling, bulk cargo can be efficiently handled.

The hopper car 40 is used for container handling.
The case in which the crane 10 travels beyond the standby position (in FIG. 3, the crane 10 travels to the right of the hopper car 40) will be described with reference to FIGS. Extend the jacks 47a, 47a of the legs 47, 47,
The vehicle is landed, further extended, and the wheels 43, 43 are raised. Next, the driving device between the cross beam 45 and the legs 42, 42 is driven to reduce the distance between the legs 42, 42. Leg 4 at this time
The interval between 2 and 42 exceeds the hopper car 40 and the crane 10
Is large enough to run.

The distance between the legs 47, 47 can be reduced when the hopper car 40 is stopped at the standby position.

According to this, it is not necessary to provide the standby position of the hopper car 40 at the end of the traveling path of the crane 10. For this reason, the cargo handling range of the crane 10 can be widened. Further, one hopper car 40 can be combined with a plurality of cranes 10.

At the time of container handling, the legs 41 and 47 are placed on the traveling road surface. If a wide plate is placed below the legs 41 and 47, the unit load can be reduced. Further, if the hopper car 40 is placed at a predetermined position, the foundation below the legs 41 and 47 can be kept high in strength. In this case, since only a part of the reinforcement is sufficient, the cost is not increased.

The jacks 44, 47a may be integral with or detachable from the legs 41, 47. The suspension position of the hopper car 40 may be the cross beam 18 on the rear side.

The connecting device shown in FIGS. 11 to 13 will be described.
FIG. 11 shows one of the two coupling devices. The coupling device on the crane 10 side has a square hole 61 when viewed from the traveling direction. Rollers 64, 64 on the inside of both sides
There is. The roller 64 rotates horizontally. The roller 64 is inserted into the mounting hole from the side, and the pin 64a can be inserted and fixed. The tip of the connecting piece 49 of the hopper car 40 has a trapezoidal shape with a small width on the tip side. The tip of the trapezoidal portion 66 enters the hole 61 and is guided by a pair of rollers 64. The convex portion 67 at the base of the trapezoidal portion 66 hits the roller 64. At this time,
The traveling of the crane 10 is stopped. Next, jack 44
Is reduced, the trapezoidal portion 66 descends and rests on the bottom 63 of the hole 61. When the crane 10 retreats, the convex portion 68 on the lower surface of the tip of the trapezoidal portion 66 hits the base 63, and the hopper car 40 is towed. When the crane 10 moves forward, the roller 64 hits the projection 67, and the hopper car is pushed. According to this, the coupling device 20 does not require a driving device.

Reference numeral 69 denotes a projection 69 protruding from the lower surface of the connecting piece 49. The crane 10 stops running when the bottom 63 is located between the protrusion 68 and the protrusion 69.
Further, the projection 69 can be a member that hits the hopper car 40 when the crane 10 moves forward. In this case, the protrusion 68 can be eliminated.

The hopper car 40 of the above embodiment is provided with a hopper 5
Although a bulk object is allowed to fall on the vehicle 100 below the lower part 3, the present invention is not limited to this. For example, it is thrown into a second hopper installed near the leg 42 via a conveyor installed below the hopper 53. The bulk material is supplied to the vehicle from the second hopper. The second hopper is in a hopper car.

The present invention can also be applied to a vehicle that is not supplied to the vehicle 100. For example, it can be supplied to a second conveyor on the ground side on the land side of the traveling path of the crane 10. The second conveyor is in parallel with the traveling path of the crane 10. A third conveyor for transporting the bulk material from the conveyor set on the hopper car 40 to the land side is provided on the hopper car 40, and the bulk material is dropped from the third conveyor to the second conveyor. The third conveyor projects perpendicular to the direction of travel. The third conveyor has legs 42 so that it can rotate backwards,
It is behind 47. The crane 10 is a hopper car 40
When traveling over the third conveyor, the third conveyor is rotated backward to allow the crane 10 to travel. The same applies to the case where the bulk material is directly supplied from the third conveyor to the yard.

A case where bulk materials in a bulk yard parallel to the traveling path of the crane 10 are loaded on a vehicle or a ship will be described. The crane 10 positions the trolley 15 on the girder 13 on the land side, grasps the loose objects with the grab bucket 30, and supplies the loose objects to the hopper 53 of the hopper car 40.
When supplying bulk materials to the ship, the third conveyor is rotated and positioned above the ship. When supplying loose objects to the vehicle, the third conveyor is rotating to the position of the vehicle 100 on the traveling path.

A description will be given of a case of a crane which loads a cargo by rotating a boom with a suspended bucket as a crane. Hopper cars can be kept outside the crane. The four legs of the hopper car are positioned to run on the rails of the crane. In addition, four legs having jacks are installed as in the above embodiment. Hopper cars can be driven by cranes.

A case will be described in which the relay device, which is towed by a crane and travels like the hopper car of the above-described embodiment, loads a container.

The embodiment shown in FIG. 14 is a case where a container is unloaded. Below the crane 10 is a relay device 130 for the container 105. One end of the relay device 130 is suspended from the cross beam 17 by the connecting device 20. Relay device 1
30 is a conveyor 13 for transporting the container 105 downward.
There are two. Girder 1 on which crane 136 runs
There are 35. The beam 50 is a girder 135. The lower part of the base of the conveyor 132 is the vehicle 11 carrying the container.
1 is at a height where the vehicle can travel. The conveyor 132 is a temporary placing table for containers. The conveyor 132 can carry a plurality of (in this case, two) containers. The conveyor 132 transports the container to the right. Crane 1
36 lifts the container placed on the right side of the conveyor 132, runs the girder 135 to the right side, and places it on the vehicle 101. The left side of the conveyor 132 is a position for lowering the container from the trolley of the crane 10.

The girder 135 is at a height where the containers of the conveyor 132 can be suspended. Legs 41, 4
The distance between the sea side and the land side of No. 2 is larger than the width of the container 105. The legs 42 are extendable and retractable with respect to the girder 135. Others are the same as in the above-described embodiment.

This relay device moves the container in reverse,
Can be used for loading on ships.

The conveyor 132 and the crane 136 may be those that convey in a horizontal direction (preferably a land side) perpendicular to the traveling direction of the crane 10. in this case,
The vehicle 111 does not travel between the legs 41.

The technical scope of the present invention is not limited to the language described in the claims or the language described in the section for solving the problem, and is not easily limited by those skilled in the art. It extends to.

[0043]

According to the present invention, since the load at one end of the relay device is supported on the rail via a crane or directly on the rail, and the other end is directly supported on the rail, a special load for the relay device is provided. This eliminates the need for foundation work and can reduce the cost of foundation. Further, when the relay devices are connected, a large amount of cargo can be handled. If the relay device is removed, other loads can be handled in large quantities. Further, since the legs on the rails can be extended and contracted, the crane can travel over the relay device.

[Brief description of the drawings]

FIG. 1 is a side view of a cargo handling apparatus according to an embodiment of the present invention when bulk cargo is being handled.

FIG. 2 is a left side view of FIG.

FIG. 3 is a side view of the apparatus shown in FIG. 1 when a container is unloaded.

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is an enlarged view of the left side surface of only the crane of FIG. 1;

FIG. 6 is a side view of the hopper car of FIG. 1;

FIG. 7 is a plan view of FIG. 6;

FIG. 8 is a right side view of FIG. 7;

FIG. 9 is a plan view of the hopper car when the crane runs over the hopper car.

FIG. 10 is a right side view of FIG. 9;

FIG. 11 is a front view of a coupling device according to another embodiment of the present invention.

FIG. 12 is a sectional view taken along line 12-12 of FIG. 11;

FIG. 13 is a sectional view taken along line 13-13 of FIG.

FIG. 14 is a plan view of a cargo handling device according to another embodiment of the present invention when a container is loaded.

[Explanation of symbols]

10: crane, 11: leg, 17, 18: cross beam, 20:
Coupling device, 30: grab bucket, 40: hopper car,
41, 42, 47: legs, 44, 47a: jacks, 5
3: hopper, 45: cross beam, 100, 101: vehicle, 13
2: Conveyor, 114: Hopper, 130: Relay device, 1
35: girder, 136: crane.

Claims (9)

[Claims] 1. A crane having legs running on two rails, and one end of the crane is detachably suspended from the crane in the running direction of the crane, and the other rail runs on the two rails. A relay device having wheels, wherein the one end of the relay device and a position for receiving a load from the crane are between one end and the other end of the crane in the traveling direction, The other end is outside the other end of the crane in the traveling direction, and the one end of the relay device is in contact with the ground between the two rails when the support is released. It has a leg, and a distance between two second legs having each of the wheels is provided so as to be extendable and contractable, and the other end of the relay device can be in contact with the ground between the two rails. Third leg Provided by which, when reduced the distance between the second leg, cargo handling device the crane is characterized, that can travel beyond the relay device. 2. The cargo handling apparatus according to claim 1, wherein each of the first leg and the third leg has a jack for raising and lowering the relay device. 3. The apparatus according to claim 1, further comprising: two beams connecting the first leg and the second leg; and a cross beam connecting the two beams at the other end. The second leg has an inverted L-shape when viewed from the traveling direction of the crane, and an upper horizontal piece of the inverted L-shape is extendable and retractable in the cross beam. 4. The cargo handling apparatus according to claim 3, further comprising a driving device for moving the horizontal piece inside the cross beam. 5. A crane having legs for traveling on two rails, and four wheels installed outside the crane and traveling on the two rails, one end of which is attached to and detached from the crane in the traveling direction. And a relay device freely connected. The relay device is located at a position capable of receiving a load from the crane, and the relay device has four first wheels corresponding to the four wheels.
Legs are provided so as to be extendable and contractible in a direction perpendicular to the traveling direction, and when the distance between the legs is reduced, the relay device contacts the ground between the two rails to support the relay device. A plurality of second legs, and when the distance between the second legs is reduced, the crane can travel beyond the relay device. 6. A gantry on which a load is placed, two first legs provided on one end of the gantry in the traveling direction and having wheels running on two rails, and provided on the one end of the gantry. Two second legs capable of contacting the ground inside the first leg, and two third legs provided on the other end side of the gantry and contacting the ground inside the first leg. And a connecting portion provided on the other end side, wherein the two second legs are provided movably in the horizontal direction. 7. The relay device according to claim 6, further comprising jacks for raising and lowering the relay device on each of the second leg and the third leg. 8. A gantry on which a load is placed, four first legs provided on each end of the gantry in the running direction and having wheels running on two rails, and each end of the gantry. And four connecting legs provided on one side in the traveling direction, the connecting portions being provided on one side in the running direction, and the four first A relay device, wherein legs are provided so as to be movable in a horizontal direction. 9. The device according to claim 8, wherein each of the second legs has a jack for raising and lowering the relay device.
A relay device.