JPS6122908Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a continuous unloader in which a bucket elevator is suspended from the tip of a boom that is supported so that it can be elevated and rotated.

When an unloader is used to unload cargo from a general cargo hold, there are problems such as loose materials in the bucket being blown away by the wind, contaminating the surrounding area, and making a lot of noise during operation. For this reason, it is possible to cover the bucket elevator with an outer cylinder, but generally bucket elevators are bendable in the middle to accommodate the load condition and the size of the ship. It is necessary to attach an outer cylinder that covers the lower part of the bucket elevator so that it can accommodate the movement of the lower part of the bucket elevator, making the entire device complicated and heavy.

This idea was proposed in view of the above, and its purpose was to have a simple and lightweight structure, and by providing an outer cylinder to accommodate the movement of the lower part of the bucket elevator, it would prevent loose objects from scattering and The object of the present invention is to provide an efficient unloader while reducing noise.

Hereinafter, embodiments of this invention shown in the drawings will be described.

1 is a traveling frame; 2 is a swing support frame rotatably supported on the travel frame; 3 is a double parallel link type boom tiltably supported on the swing support frame; and a balance weight 4 is attached to the rear end. An L-shaped frame 5 is movably attached to the front end. Reference numeral 6 denotes a cylinder that connects the swing support frame 2 and the double parallel link type boom 3. The boom 3 can be freely tilted by moving the cylinder in and out, and a bucket elevator is suspended from the cylinder via the L-shaped frame 5. 7 is always moved vertically up and down. A bucket elevator consists of a chain whose upper end is suspended from a sprocket 8a and whose lower end is wrapped around a lower sprocket 8b, and a number of buckets 7' attached to the chain. It is covered by outer cylinders 9 and 10, and is rotatably supported by the L-shaped frame 5 together with the rotary feeder 11. The upper outer cylinder 9 is rotatably supported by the upper L-shaped frame 5, and has a bulge 9' formed at its lower end for housing and holding guide sprockets 18 and 19. The lower outer cylinder 10 is tiltably engaged with the enlarged part 9' of the upper outer cylinder 9, and the cylinder 1 is connected between its outer upper end and the upper outer cylinder 9.
2 allows the enlarged portion 9' to tilt along the engagement surface. A cylinder 13 is connected to the inner lower end of the lower outer cylinder 10 via a suitable holding member, and the lower sprocket 8b connected to the piston rod can be freely pulled up. Furthermore, on the lower sprocket shaft,
A rotary blade 14 is pivotally supported to loosen and side-cut the bottom load material. 15 is a drive device for a bucket elevator, 16 is an in-flight conveyor stretched over the boom 3, and 17 is a ship.

The present invention is constructed as described above, and in order to discharge cargo in the hold, first operate the boom 3 to lower the bucket elevator 7 from the hatch opening of the ship 17, and then lower the bucket elevator 7. While turning in a desired direction, the drive device 15 is driven to vertically pull up the bulk material scooped up by the bucket 7' and discharge it from the top of the bucket elevator to the rotary feeder 11, facing the discharge port. An in-flight conveyor 16 is used to transport the material to the rear equipment.

In order to remove loose objects from the corner of the hold that will be hidden by hatches, the bucket elevator 7 can be easily removed by operating the cylinder 12 and bending the lower end of the bucket elevator 7 from the middle part toward the side to be removed. be able to. Furthermore, as the bucket elevator 7 approaches the bottom of the ship, the bucket elevator 7 is folded when the bottom of the ship is being discharged where there is a risk that the bucket 7' may come into contact with the bottom of the ship. While the cylinder 13 is bent, the lower sprocket 8b is pulled up by operating the cylinder 13, and with the bucket elevator 7 in a catenary state, that is, with the chain of the bucket elevator hanging down from the rear side of the lower sprocket 8b, bulk material handling work is performed. This prevents the loose objects in the bucket from scattering and contaminating the surrounding area during work, reduces noise during work, and does not make the entire device complicated or heavy, making it efficient. You can take out the bottom load.

Since this invention has the structure and function described in detail above, it is possible to definitely achieve the intended purpose of the invention.

[Brief explanation of the drawing]

FIG. 1 is a conceptual diagram of the entire device incorporating the present invention, and FIG. 2 is a front view of the bucket elevator. 1...Traveling frame, 2...Swivel support frame, 3
...Double parallel link boom, 4...Balance weight, 5...L-shaped frame, 6, 12, 13
...Cylinder, 7...Bucket elevator, 8
a, 8b... Sprocket, 9, 10... Outer cylinder,
11... Rotating feeder, 14... Rotating blade, 15
... Drive device, 16 ... In-machine conveyor, 17 ...
Ship, 18, 19... Guide sprocket.

Claims (1)

[Scope of utility model registration request] An unloader having a double parallel link type boom supported on a support frame so as to be able to rise and fall freely, an L-shaped frame movably connected to the tip of the boom, and a bucket elevator pivotally suspended from the L-shaped frame. The outside of the elevator is covered by an upper outer cylinder and a lower outer cylinder that is tiltably engaged with an arc-shaped enlarged part formed at the lower end of the upper outer cylinder, and a guide sprocket is rotatably inserted into the enlarged part of the upper outer cylinder. A cylinder is connected between the outer upper end of the lower outer cylinder and the upper outer cylinder to hold the lower outer cylinder and tilt the lower outer cylinder along the engagement surface of the enlarged part, and further, a cylinder is connected to the inner lower end of the lower outer cylinder. A bucket elevator type unloader characterized in that a cylinder with a lower sprocket attached is connected via a holding member so that the bucket elevator can be bent and shortened from an intermediate portion.