JPH032528Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dispensing device in a silo for storing powdered materials such as coal.

[Prior Art] Conventionally, this type of device is shown in FIGS. 4 and 5, for example.
As shown in the figure, a pair of rails 3a and 3b are provided below a chevron-shaped cone 2 placed at the bottom of a silo 1, and a running cart 4 is suspended from the rails via running wheels 6 driven by a motor 5. A pair of dog-shaped scrapers 7a and 7b are installed at the bottom of the traveling trolley 4.
are pivotally connected, and each scraper is connected to selector gears 8a, 8.
b, one scraper 7b is rotated by drums 11a, 11b rotated by motors 10a, 10b via wire 9, and as shown in FIG. 4 to the right to discharge the powder and granules, close the scrapers 7a and 7b, and thus close the scrapers 7a' and 7.
With b' open, the traveling carriage 4 is moved to the left to discharge the powder and granules.

By the way, this dispensing device itself is effective, but since it uses a dogleg scraper, the traveling body is long, and it also requires a gear section to reverse the scraper, so it is large and has a complicated structure. In addition, since the dispensing method is a spray method, the size of the traveling device is inevitably large and requires a large space, which increases construction costs. The problem is that the distance to reverse the scraper is long, taking about 1/2 of the total length of the scraper, and is not efficient.

[Object of the invention] Therefore, the object of the invention is to provide a silo dispensing device that is compact, has a simple structure, requires less dispensing space, and has a short distance when changing direction.

[Structure of the invention] According to the invention, in a silo discharging device for a silo that stores powder and granular materials, a mountain-shaped cone is provided to guide the powder and granular materials that fall to the bottom of the silo, and a rail is installed below the covering. A base is provided that runs linearly along the base, and rotational axes are provided that are point symmetrical and perpendicular to the center of the base. A scraper projecting from the scraper is pivotally mounted, and the scrapers are connected to each other by a linkage that positions one scraper in an open dispensing position and the other in a closed neutral position.

[Operations and Effects of the Invention] Therefore, one scraper can be opened and dispensed when going forward, the other scraper can be opened when going back, and one scraper can be closed in conjunction with this to perform dispensing. Therefore, the scraper can be substantially reduced to one set, resulting in a compact device, simplified structure, less unloading space, lower construction costs, and a shorter distance when changing direction. Without this, work efficiency can be improved.

[Preferred Embodiment] When carrying out the present invention, it is preferable that the link mechanism is constituted by an arm protruding from the rotating shaft of each scraper and a connecting rod that connects these arms.

When implementing the present invention, it is preferable that the scraper travels via a wire stretched along a rail.

In carrying out the present invention, it is preferable that the opening and closing positions of the scraper be reversed by a reversing plate that comes into contact with the scraper and guides the scraper and rotates the scraper from the open position to the closed position. In this way, the power for reversing can be saved and the device can be further simplified.

[Examples] Examples of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, a mountain-shaped cone 2 is arranged at the bottom of a silo 1, and the stored material B is stored with a specific angle of repose θ between the silo 1 and the cone 2. .

A suitable beam 12 at the bottom of the cone 2 is provided with one rail 13, and the rail 13 is provided with a rail 13.
The base 20 is mounted via two sets of wheels 21 that sandwich the base 20
is suspended, and the lower end of this base 20 is taken out and guided to the takeout shelf 14 by two sets of takeout shelf wheels 22.

The base 20 is an upper beam 20a to which wheels 21 are attached.
It is formed into a rectangular frame by a lower beam (not shown) to which wheels 22 for the dispensing shelf are attached, and a standing beam 20b connecting them. 2 points symmetrically with respect to P
The rotation shafts 23a and 23b of the book are provided vertically.

Scrapers 24a and 2 are mounted on these rotating shafts 23a and 23b, respectively, with their dispensing surfaces facing each other.
4b are fixedly installed, and those scrapers 24
a and 24b are connected by a link mechanism 25.

This link mechanism 25 has rotating shafts 23a and 23b.
It consists of arms 26a, 26b projecting from the top and a connecting rod 27 connecting these arms, as shown in the figure. When the scraper 24a is in the dispensing position opened by about 45 degrees, the scraper 24b is positioned in the closed neutral position.

On the other hand, as shown in FIG. 3, a wire 19 wound around a drum 17 and a roller 18, which are driven by a motor 16, is stretched parallel to the rail 13 on the base structure 15 of the silo 1. , a portion of the wire 19 is connected to the end of the arm 26a. Therefore, when the motor 16 is rotated in the forward and reverse directions, the base 20 is linearly reciprocated along the rail 13. In addition, the scraper 24 of the base structure 15
Reversing plates 28a and 28b, which are opened by about 30 degrees, are provided at portions facing a and 24b, respectively.
Therefore, for example, when the base 20 is moved to the left with the scraper 24b open, the scraper 24b in contact with the inner surface of the reversing plate 28b is guided by the reversing plate 28b and closed, and the scraper 24a is moved through the link mechanism 25. is starting to open.
Note that the movement of the base 20 is not limited to the wire 19, and a sprocket driven by a motor may be meshed with a pin gear provided along the rail.

When operating, the scraper 24a is opened (therefore, the scraper 24a is opened via the link mechanism 25).
(b closed state), the motor 16 is rotated forward, the arm is pulled to the right by the wire 19, and the base 20 is moved to the right. Then, as shown in FIG. 1, the scraper 24b extends from vertically below the dispensing adjustment sleeve 2a at the lower end of the cone 2 to the inside of the silo 1, so it scrapes up the stored material B and transfers it from the discharge port A to the conveyor. Dispense onto C (Figure 5). At the end of the foundation structure 15, the scraper 24a is guided by the reversing plate 28a and closed, and the scraper 24b is opened via the guide mechanism 25. In this state, the motor 16 is reversed and the base 20 is
is moved to the left, and the stored items are discharged using the scraper 24b in the same manner as described above. Note that the rough adjustment of the dispensing amount can be made using the dispensing adjustment sleeve 2a and the dispensing shelf 1.
Adjust the gap with 4. Further, the payout amount can also be changed by changing the running speed, and by combining the two, a wide range of adjustments can be made.

[Summary] As explained above, according to the present invention, when one scraper 24a is in the open dispensing position, the other scraper is positioned in the closed neutral position by the link mechanism 25, and the reversal of the position is based. Since this is done by running the scraper, the scraper can be essentially reduced to one set, and as a result, the device is compact and the structure is simplified.
In addition, construction costs can be reduced by reducing the dispensing space, and work efficiency can be improved by eliminating the distance required to change the dispensing direction.

[Brief explanation of the drawing]

Figures 1 to 3 show one embodiment of the present invention, Figure 1 is a front view, Figure 2 is a top view, Figure 3 is a layout of the reversing plate, and Figures 4 and 5 are conventional FIG. 2 is a front view and a top view showing the device. 1... Silo, 2... Cone, 13... Rail, 20... Base, 24a, 24b... Scraper, 25... Link mechanism, 26a, 26b...
Arm, 27... Connection rod, 28a, 28b...
...Reversal board.

Claims (1)

[Scope of utility model registration request] In a silo discharging device for a silo that stores powder and granular materials, a mountain-shaped cone is provided at the bottom of the silo to guide the powder and granular material that falls, and a base that runs linearly along a rail is provided below the covering. , vertical rotation axes are provided point-symmetrically with respect to the center of the base, and scrapers that open and project outward in the direction of movement on each side of the base are pivotally attached to these rotation axes, respectively. A silo dispensing device characterized in that the scrapers are connected to each other by a link mechanism that positions the other scraper in a closed neutral position when one of the scrapers is in the open dispensing device.