JPS6131008B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a floor scraping device for a storage silo with a flat bed, and more particularly to a device in which a sweeper for storing input bulk materials and scraping off the accumulated materials is withdrawn from the storage area.

The basic structure of a conventional flat-bed, scraper-type bulk material storage silo will be explained. There is a circular flat plate 1 at the base, a conical body 2 provided on this, a hopper 3 provided below this conical body 2, a delivery conveyor 4 recessed in a radial direction from this hopper 3, and a conical body 2. A silociel 5 is installed concentrically with the silo shell 5, a pull ring 6 is rotatably provided around the cone 2, and a ring drive unit 7 is fixed to the flat bed 1 so as to be circumscribed to the pull ring 6.
, a sweeper 8 connected to the inside of the pull ring 6 so as to be in flexible contact with the flat bed board 1, an input conveyor 9 constructed across the inside and outside of the silo shell 5, the cone 2 and the take-out conveyor. 4, a control panel 10 electrically connected to the ring drive section 7 and the input conveyor 9, respectively.

The cone body 2 is located at the inclined middle part of the cone cover 11.
A plurality of breakers 12 are provided which can be opened and closed via means such as a cylinder device.

The hopper 3 and the delivery conveyor 4 are provided with conveyor grooves 13 radially communicating with each other from the hopper 3 on the surface of the flat bed board 1, and a delivery conveyor 14 extending from the hopper 3 to the outside of the flat bed board 1 is recessed in one of them. In the remaining conveyor groove 13, there is a collection conveyor 1 connected to the hopper 13.
5 is recessed, and a grid cover 16 is provided on the upper surface of each conveyor groove 13. .

The silociel 5 has pillars 17 arranged concentrically with the cone body 2 near the outer periphery of the flat bed board 1.
A cylindrical shell 18 is constructed above the flat bed 1 via this support 17.

An annular upper guide rail 19B is provided on the lower edge of the shell 18, and a guide rail 19A is provided on the flat bed board 1 to face the upper guide rail 19B. Fan-shaped segments 21 are interposed between the segments 20 at equal intervals, and the segments 20 are formed and solidified into a ring shape.
A guide shaft 22 is provided vertically protruding from the connecting portion of the segments 20 and 21, and guide rollers 23 are provided at both ends of the guide shaft 22 to roll into contact with the guide rail 19.
is attached so that it can be rotated freely. A bracket 24 is provided protruding downward near the ends of the segments 20, 21,
The traveling roller 25 is rotatably pinned to form a pull ring 6 that rotatably circumscribes the guide rail 19. The ring drive unit 7 meshes a transmission gear 27 that is interlocked with a prime mover 26 fixed to the flatbed 1 with a rack carved on the outer periphery of the pull ring 6.
The sweeper 8 has a bucket 2 that slides on the flat bed board 1.
One side of 8 is opened, and the front and rear parts are connected to each other in a flexible manner by aligning this opening surface to one side, and the connected end is connected to the fan-shaped segment 21 in a flexible manner via a joint link 29 to serve as a front end. , the other connected end becomes the free end of the sweeper 8.

Its action is to deposit loose materials on the flat bed board 1 in the silo shell 5 by the feeding conveyor 9.
When the ring drive unit 7 is operated, the pull ring 6 rotates and pulls the sweeper 8. The towed sweeper 8 is moved by the frictional resistance between the bucket 28 and the floor.
Wiping is carried out on the flat bed board 1 with the joint link 29 at the front and the free end bucket 28 at the rear, and during wiping, the trailing bucket 28 passes through a shortcut rotational trajectory rather than the leading bucket 28. The last bucket 28 continues to move toward the center of the flatbed 1, increases its degree of curvature in a spiral manner, and wraps around the bulk pile. The sweeper 8, which rotates counterclockwise in FIG. 1, wraps the open surface of the bucket 28 in contact with the pile of loose materials, and the bucket 28 scrapes the loose materials from the pile and throws them into the delivery conveyor 4. The delivery conveyor 4 carries out the loose material scraped by the sweeper 8 out of the silo.

However, although the sweeper 8 that wipes as the pull ring 6 rotates automatically wraps around the outer periphery of the pile of loose materials, the free end of the sweeper 8 is moved outward from the outer periphery of the pile of loose materials whose diameter has become smaller. Since it is impossible to separate the sweeper 8 from the bulk material pile when replenishing the silo with bulk materials, the sweeper 8 is buried in the bulk material pile. In order to avoid this burying, the sweeper 8 is moved at low speed while the bulk materials are being introduced, and the sweeper 8 is moved to the outer periphery of the bulk material pile, and the scraped materials are recycled back into the silo. , Since it is difficult to monitor the accumulation status inside the silo due to the silociel, it may become impossible to operate due to the sweeper 8 being buried.
There were drawbacks such as high energy loss due to excessive recycling of bulk materials.

SUMMARY OF THE INVENTION In view of the above drawbacks, it is an object of the present invention to provide a sweeper device that can be moved out of the bulk material accumulation area at any time.

The structure of this invention will be explained based on examples.

In the figure, along the inside of the guide rail 19 on the flat bed board 1, the same number or more of regulation holes 30 as the sweepers 8 are arranged at equal intervals, separated from the guide rail 19 by a distance larger than the evacuation zone where the buckets 28 of the sweepers 8 are lined up. Provided for. A support shaft 31 is located inside this regulation hole 30.
A regulating roller 32 is installed on this support shaft 31 so as to be able to rotate vertically and freely. This regulation roller 3
2 is at the lower level, the upper surface of the regulating roller 32 is at the same level as the surface of the flat bed board 1.

Next, the operation of the above configuration will be explained.

When discharging from the silo, use the regulating roller 3.
2 into the regulation hole 30, maintain a flat surface on the top surface of the flatbed board 1, and rotate the pull ring 6 counterclockwise in the figure, the sweeper 8 moves into the bucket 28 as in the conventional case.
Wrap the opening surface around the bulk material pile and move it. When dispensing is stopped and bulk materials are supplied to the silo, the regulating roller 32 is projected from the regulating hole 30 onto the flat bed board 1 and comes into contact with the inside of the spiral bend of the sweeping sweeper 8. The sweeper 8, whose wiping movement is prevented by the contact with the regulation roller 32, is pulled by the rotating pull ring 6 and passed between the regulation roller 32 and the guide rail 19 so as to straighten its bend, and is moved into the evacuation area outside the bulk accumulation area. They are drawn into it.

The support shaft 31 and the regulating roller 32 may be protruding/retracting regulating bodies 31 and 32 that freely protrude and retract from the regulating hole 30 and slide into contact with the bucket 28.

As explained above, in the present invention, the regulating body of the sweeper is provided on the flat bed plate of the flat bed scraper type silo so that it can freely appear and retract, so that the regulating body contacts the sweeping sweeper and moves the sweeper outside the regulating body. By guiding the sweeper, it became possible to evacuate the sweeper out of the debris accumulation area at any time.

[Brief explanation of the drawing]

Figure 1 shows the plane of the flatbed silo, with the left half showing the lower part of the silo shell. FIG. 2 is a diagram showing arrow views AA and BB in FIG. 1. 1: Flatbed, 6: Pull ring, 8: Sweeper,
19: Guide rail, 29: Bucket, 31,3
2: Regulatory body.

Claims (1)

[Claims] 1. A circular flat bed board with an unloading conveyor and a collecting conveyor sunk in radially from the central hopper, a pull ring rotatably installed along a circular guide rail installed concentrically with the hopper, and a bucket tray in contact with the circular flat bed board. In a flat-bed scraper type silo, the regulator is connected to the sweeper in a flexible manner and one end of the sweeper is connected to a pull ring. A sweeper evacuation device characterized by being installed so that it can appear and disappear from the board surface.