JP2011168362A - Powder and granular material unloading device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a powder and granular material unloading device in a simple structure, which smoothly unloads a powder and granular material without inclining a cargo box, and expands the volume of the cargo box by reducing vehicle body weight. <P>SOLUTION: An upper part of the cargo box 3 of a rectangular solid-shaped truck 1 is formed as an input port 4, and is formed as a discharge port 6 for installing an opening-closing door 5 on the rear side. Sprockets 11A-11D are respectively installed at the inside corner of both sidewalls in the longitudinal direction, and left-right chains 12A and 12B are wound here along both sidewalls 10, and both ends are connected to the left-right chains 12A and 12B. A plurality of sending plates 22 are installed at an interval in the traveling direction, and a geared motor 18 is connected to the sprocket 11A installed in the upper corner. The sprockets 11A-11D are rotated, and the sending plate 22 positioned on the floor surface side is moved to the discharge port side along a floor surface 23, and a timber chip 27 inputted to the cargo box 3 is successively discharged from the discharge port 6. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a granular material unloading apparatus.

Generally, in a factory that produces wood chips, after peeling the bark of wood, it is finely crushed to produce chips. When transporting the produced wood chips, bark, chip dust, and other powders, they are transported by being loaded into a dump truck's packing box. When unloading at the transport destination, the hydraulic cylinder is extended to tilt the cargo box, and the rear door is opened and discharged from the discharge port. In addition, since the load accumulated behind the dump truck is piled up, the dump truck is unloaded while moving forward little by little while checking the unloading condition.

However, the dump truck unloads the cargo box by tilting the hydraulic cylinder, so that the vehicle body becomes unstable, and there is a risk that it sometimes rolls over or touches the overhead wire. In addition, since a hydraulic cylinder is provided due to the structure, there is a problem that the weight increases and a mounting space is required, and accordingly, the height of the packing box is lowered and the loading amount is reduced.

For this reason, as a structure in which the packing box is not inclined by the hydraulic cylinder, an apparatus has been proposed in which a belt conveyor is attached to the floor surface of the packing box and the load is sequentially discharged by the belt conveyor (Patent Document 1). However, with this structure, it is not possible to embed a belt conveyor while the powder particles are loaded, and it is necessary to provide a hopper storing powder particles above the belt conveyor and to discharge it from the belt conveyor little by little. There is. As described above, since the hopper and the belt conveyor are provided inside the packing box, there is a drawback that the loading amount is reduced.

JP-A-9-48275

The present invention improves the above-mentioned problems, and with a simple structure, can smoothly disperse powder particles without tilting the packing box, reduce the weight of the vehicle body, expand the volume of the packing box, and load capacity A granular material unloading apparatus capable of increasing

According to a first aspect of the present invention, there is provided an apparatus for unloading a granular material, wherein an upper opening portion of a rectangular parallelepiped truck having an upper opening is used as an input opening, and an opening / closing door is attached to one side along a longitudinal direction. Sprockets are attached to the inner corners of both side walls along the longitudinal direction, and left and right chains are wound around the both side walls, and both ends are connected to the left and right chains. A plurality of feed plates are attached at intervals in the direction, a power source is connected to the sprocket attached to the upper corner, and the sprocket is discharged when powder particles put into the packing box or stock box are discharged from the inlet. And the feed plate located on the floor surface side is moved to the discharge port side along the floor surface to sequentially discharge the powder particles from the discharge port.

The granular material unloading device according to claim 2 of the present invention is the powder particle unloading device according to claim 1, wherein a rail plate is attached to the floor surface of the packing box or stock box along the longitudinal direction, and the feed plate slides on the rail plate. It is characterized by being able to move.

According to a third aspect of the present invention, there is provided an apparatus for unloading a granular material according to the first aspect, wherein an electric or hydraulic motor is used as a power source. Furthermore, the granular material unloading apparatus according to claim 4 of the present invention is characterized in that, in claim 1, covers are attached to the left and right chains that run along the floor surface.

According to the granular material unloading apparatus according to claim 1 of the present invention, only the low-feed plate moves on the floor surface side of the granular material loaded in the packing box or the stock box. Since it is discharged from the body discharge port, the volume can be expanded compared to the case where a belt conveyor with a large height is installed. .

Furthermore, unlike the dump truck, the carton is not tilted, so the car body is stable even during unloading, and since there is no hydraulic cylinder, the car body weight is light. The load capacity can be increased by about 30%.

In addition, according to the granular material unloading apparatus of the second aspect, the rail plate is attached along the longitudinal direction on the floor surface of the packing box or the stock box, and the feed plate slides on the rail plate. The feed plate can move smoothly and the discharge speed can be increased.

According to the particulate unloading apparatus of the third aspect, an electric or hydraulic motor can be used as a power source.

Moreover, according to the granular material unloading apparatus of claim 4, since the chain is covered with the cover and only the feeding plate having a low height moves on the floor surface side of the loaded granular material, Even if it enters the chain without clogging the granular material, it can move toward the rear and be discharged automatically.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. In the figure, reference numeral 1 denotes a truck, and a cargo box 3 is mounted on the carrier 2. The packing box 3 is formed in a rectangular parallelepiped shape, and its upper part is opened as shown in FIG. An opening / closing door 5 is attached to the rear side of the packing box 3 along the longitudinal direction, and a discharge port 6 is formed here. A generator 7 is attached to the lower part of the loading platform 2 as shown in FIG.

2 and 3, sprockets 11A, 11B, 11C, and 11D are attached to the inner corners of both side walls 10 and 10 along the longitudinal direction of the packing box 3, respectively. Chains 12 </ b> A and 12 </ b> B are wound around the side walls 10 and 10 around the left and right sprockets 11 </ b> A to 11 </ b> D. The upper left and right sprockets 11A and 11A are connected via a rotating shaft 14, and the lower left and right prockets 11B and 11B are also connected via a rotating shaft 14. The ends of these rotating shafts 14 are supported by bearings 15 and integrated. It is designed to rotate.

Further, as shown in FIG. 3, a sprocket 17A is integrally attached to the upper right end of the rotary shaft 14 to which the upper sprockets 11A and 11A are attached. A geared motor 18 connected to the generator 7 is attached to the outer side of the upper part of the cargo box 3, and a sprocket 17B attached to the output shaft is connected to the sprocket 17A via a chain 19.

As shown in FIG. 3, between the left and right chains 12A and 12B, both ends thereof are connected to the chains 12A and 12B, and a plurality of feed plates 22 are attached at intervals in the traveling direction. As shown in FIG. 2, the feed plate 22 is formed in an L shape with the rear end bent upward. The feed plate 22 is attached at an interval in the range of approximately one-half to three-fourths of the entire length of the left and right chains 12A, 12B, and the rest has a portion that is not attached.

A plurality of rail plates 24 are attached to the floor surface 23 of the rectangular parallelepiped box 3 along the longitudinal direction at intervals, and the feed plate 22 slides thereon. . As shown in FIG. 4, a cover 25 that is inclined so as to cover the left and right chains 12 </ b> A and 12 </ b> B traveling there is attached to a corner between the floor surface 23 and the left and right side walls 10. Further, the rotating shaft 14 to which the left and right sprockets 11B and 11B are attached is also covered with a cover 25 as shown in FIG.

For example, when loading wood chips 27 on the powder particle unloading apparatus mounted on the truck 1 having the above-described configuration, the packing box 3 of the truck 1 is positioned under a belt conveyor (not shown) of the chip factory. At this time, as shown in FIG. 2, the chains 12 </ b> A and 12 </ b> B are adjusted so that a portion where the feed plate 22 is not attached is located at the upper inlet 4 of the packing box 3. In this state, the wood chips 27 conveyed by the belt conveyor are sequentially inserted from the insertion port 4. At this time, since there is no feed plate 22 in the charging port 4, it can be smoothly loaded.

Thereafter, the truck 1 is transported to the factory where the wood chips 27 are used as raw materials. When the truck 1 comes to the stock yard of the wood chips 27, the tilt 28 at the rear of the loading platform 2 is opened as shown in FIG. Is raised, the wood chip 27 of the packing box 3 spills from the outlet 6.

Thereafter, when the switch is turned on, the geared motor 18 is rotated, and this rotational force is transmitted to the sprocket 17B, the chain 19, and the sprocket 17A, and the left and right sprockets 11A and 11A attached coaxially therewith rotate. When the sprockets 11A and 11A serving as drive wheels rotate, the sprockets 11B to 11D also rotate, and the left and right chains 12A and 12B rotate. With the rotational movement of the chains 12A and 12B, the floor-side feed plate 22 connected thereto slides on the rail plate 24 and moves toward the rear of the vehicle body.

When the feed plate 22 sequentially moves toward the rear of the vehicle body on the floor surface 23 side of the packing box 3 packed with the wood chips 27, the wood chips 27 are sequentially discharged from the discharge port 6. When the load accumulated behind the truck 1 is piled up, the truck 1 is moved forward little by little while checking the unloading state. Also, when the chain 12A, 12B of the portion where the feed plate 22 is not attached reaches the floor 23, it is not discharged, but when the feed plate 22 moves again to the floor 23 for a while, the discharge is resumed. In the case of a two-ton truck, all the chains 12A and 12B can be discharged if they are rotated 3 to 4 times.

Also, the chains 12A and 12B arranged at the floor corner of the packing box 3 are covered with a cover 25 as shown in FIG. 4, and only the L-shaped feed plate 22 moves on the floor surface side of the loaded wood chips 27. Therefore, the wood chip 27 is not clogged in the machine part. Even if the wood chips 27 enter the chains 12A and 12B, they are automatically discharged because they are sequentially moving toward the rear of the vehicle body. For this reason, as compared with the case where a belt conveyor having a large height is installed, the loading capacity can be increased, and since the drive source is attached to the upper part of the packing box 3, maintenance and inspection are easy and there are few failures.

Furthermore, the car body is stable even during unloading because the packing box is not tilted like a dump truck. In addition, since there is no hydraulic cylinder, the weight of the vehicle body is light, the load capacity of the cargo box 3 can be expanded with the same load, and the conventional load can be increased by about 20-30%.

In the above description, the case where the driver's seat and the loading platform are attached to an integrated truck has been described. However, the driver's seat and the loading platform may be attached to the platform of a trailer truck in which the driver's seat and the loading platform are rotatably connected.

FIG. 6 shows another embodiment of the present invention in which a stock box 30 having an opening 4 at the top is installed below the hopper 29, and the internal structure thereof is the same as that shown in FIG. It is. Reference numeral 31 denotes a belt conveyor provided above the hopper 29 and below the discharge port 6.

The granular material unloading apparatus having the above structure stores the produced wood chips 27 in the stock box 30 from the belt conveyor 31 through the hopper 29, and opens the opening / closing door 5 as necessary to open the belt conveyor from the discharge port 6. 31 is discharged.

In the above description, the case where the electric geared motor 18 is used as the power source has been described. However, a structure using a hydraulic motor may be used. Further, the feed plate 22 may be structured to be connected at equal intervals over the entire length of the chains 12A and 12B.

In the above description, the case where the wood chip 27 is transported or stored has been described. However, the present invention can be widely used for powders having a relatively low specific gravity, such as bark, chip dust, sawdust, grain, miscellaneous grain, livestock feed, and compost. . The stock box 30 is not limited to the installation type, but may be a container type that is transported by truck, ship, or cargo aircraft, and the power source may be connected to the motor at the unloading destination.

It is a side view of the truck carrying the granular material unloading apparatus by one Embodiment of this invention. It is sectional drawing which shows the granular material unloading apparatus of FIG. It is a top view which shows the granular material unloading apparatus of FIG. It is a rear view which expands and shows the principal part of a granular material unloading apparatus. It is sectional drawing of the granular material unloading apparatus which shows the state which has discharged | emitted the wood chip | tip. It is sectional drawing of the granular material unloading apparatus by other embodiment of this invention.

1 track
2 cargo bed
3 Packing box
4 slot
5 Opening door
6 outlet
7 Generator
10 Side wall
11A to 11D Sprocket 12A, 12B Chain 14 Rotating shaft 14
15 Bearing
17A, 17B Sprocket
18 Geared motor
19 chain
22 Feed plate
23 Floor
24 rail plate
25 Cover
27 Wood chips
29 Hopper
30 stock box
31 Belt conveyor

Claims (4)

The upper opening of a rectangular truck box or stock box with an opening at the top is used as the inlet, and one side along the longitudinal direction is the outlet with an open / close door. The inner corners of both side walls along the longitudinal direction Attach the sprocket to each side, wind the left and right chains along the side walls, connect both ends to the left and right chains, and install multiple feed plates at intervals in the chain travel direction, When a power source is connected to the sprocket attached to the container, and the powder particles put into the packing box or stock box are discharged from the loading port, the sprocket is rotated and the feed plate located on the floor surface side is moved to the floor surface. The particle unloading apparatus is characterized in that the particles are sequentially discharged from the discharge port by being moved to the discharge port side along the line. 2. The granular material unloading apparatus according to claim 1, wherein a rail plate is attached to the floor surface of the packing box or stock box along the longitudinal direction thereof, and the feeding plate slides on the rail plate. . 2. The granular material unloading apparatus according to claim 1, wherein an electric or hydraulic motor is used as a power source. 2. The granular material unloading apparatus according to claim 1, wherein covers are attached to the left and right chains that run along the floor surface.