JPH0734040Y2 - Belt clamp type unloader supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a feeding device for a belt pinch type unloader.

[Conventional technology and its problems]

As is well known, a continuous unloader for unloading loose materials such as grains and powders from a hold holds a boom frame on a traveling frame so that the tip of the boom can be raised and lowered. Suspend an elevator (or vertical screw conveyor) and place 1 at the bottom of this bucket elevator.
A pair of bucket type feeders are attached and configured, and bulk objects are picked up by this bucket type feeder and supplied to the bucket elevator, and the bucket elevator conveys them upward to unload them.

Recently, in place of the bucket elevator in such a continuous unloader, a belt-clamping conveyor has been used, and instead of a bucket feeder, a belt-clamping unloader using a paddle feeder has come to be used.
(See Japanese Patent No. 14232).

Further, this belt-pinch type unloader is characterized in that loose objects rarely adhere to the belt, so that conveyance resistance like that of a screw conveyor can be prevented and belt driving power can be saved. In other words, it has the characteristic that a large amount of bulk items can be continuously unloaded.

However, even if this double belt has a large unloading capacity, if the attached paddle feeder does not have a sufficient scraping capacity (especially when handling loose material with poor fluidity), the entire unloader As a result, the unloading capacity decreases.

Therefore, in the above-mentioned publication, it is proposed that the paddle feeder having the horizontal screws integrally extended on both sides has a plurality of radial blades that are bent backward with respect to the rotation direction.

However, since the proposed paddle feeder is a single feeding device provided directly below the joining portion of the double belt, there is a limit to increase the scraping ability even if the shape of the blade is changed.

Therefore, we adopted a pair of facing paddle feeders,
It is conceivable to integrally extend horizontal screws on both sides of each paddle feeder, but such a structure not only complicates the apparatus, but also increases the weight and is not preferable for the boom.

[Means for Solving the Problems]

Therefore, the present invention was devised in order to completely eliminate such inconvenience. The gist of the present invention is to suspend a double belt conveyor at the tip of the boom and attach it to the lower end of the double belt conveyor. In an unloader provided with a pair of paddle feeders, scraping loose objects toward the paddle blades below the pair of paddle feeders and outside the axial width of the paddle blades of these paddle feeders. In the feeding device for the belt-clamping unloader, the horizontal screw is provided.

〔Example〕

The structure of the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings.

FIG. 1 is a side view of an embodiment of the present invention, and FIG. 2 is A of FIG.
FIG. 3 is a side view of the side view of FIG. 3, FIG. 3 is a plan view of FIG. 2 viewed from the direction of arrow B, FIG. 4 is an overall view of a belt-clamping unloader having a paddle feeder, and FIG. A corresponding plan view is shown.

In FIG. 4, the present embodiment is a belt-clamping unloader for unloading loose items such as grain in the hold and feed with poor fluidity. 1 is a flat belt, and the main belt is a main belt. A belt-clamping type unloader in which 2 and the subordinate belt 3 are combined, and the loose object 8 is nipped and conveyed at the matching part,
That is, it is a double-belt conveyor, and this double-belt conveyor 1 has a vertical transport unit V of about 20 m that can swing (c) and move vertically (d), and a horizontal transport unit H that can lift and lower (e). It consists of. The lower end of the double-belt conveyor 1 has a skirt-shaped widening at the lower end. That is, the tail pulleys 9 and 9 of the main and sub belts 2 and 3 are separated from each other at the same height and in the horizontal direction to form the skirt portion 4. Below the skirt portion 4, a pair of paddle feeders 5, 5 are attached. The paddle feeder 5 is driven and rotated by a motor (not shown) on a bracket provided below the vertical frame 18 (see FIG. 1) that supports the double belt conveyor 1. .

A chute 6 is provided at the exit of the horizontal transport section H. Reference numeral 7 is a hull, and 10 is a pair of ear pressing rollers for sandwiching both ears of the main and slave belts 2 and 3 and sandwiching a loose article 8 in the widthwise central portion of the belt for conveyance. . Reference numeral 11 is a conveyance amount regulation pulley, which is formed in a drum shape. Reference numeral 14 indicates a return bend roller.

Therefore, according to the belt pinch type unloader of the present embodiment, in order to land the loose object 8 in the hull 7, the main and slave belts 2 and 3 are driven at the same speed and in the same direction, and the paddle feeders 5 and 5 are driven. Rotate so that they face each other, and
Flipping on the skirt portion 4 of the heavy belt conveyor 1. As a result, the loose material 8 is sandwiched between the main and slave belts 2 and 3 and is transported by the vertical transport unit V as indicated by arrow a, and is transported by the horizontal transport unit H toward the chute 6 as indicated by arrow b. .

Here, the following pair of left and right (in FIG. 2) horizontal screws 12, 12 are provided between the pair of paddle feeders 5, 5 of this embodiment. That is, in FIG. 1, FIG. 2 and FIG. 3, the paddle shaft brackets 13 and 13 are respectively extended below the vertical frames 18 and 18 on both sides, and the screw shaft bracket 15 is installed from these paddle shaft brackets 13 and 13. , 15 are further branched, and both ends of one horizontal screw shaft 16 are supported by these screw shaft brackets 15, 15. This horizontal screw shaft 16 has paddle blades
Horizontal screws 12 and 12 are attached outside the width L of 5a. Both paddle shafts 17, 17 are driven and rotated by a drive device (not shown). The horizontal screw shaft 16 is driven by a paddle shaft 17 via a sprocket 19, a chain 20, and a sprocket 21, as shown in FIG. Reference numeral 22 represents a bearing.

Since the configuration of this embodiment is as described above, the following operation is performed. That is, when the paddle feeder 5 is driven and rotated in the loose object 8, the horizontal screw 12 is also driven and rotated accordingly. The horizontal screw 12 is rotated so that the loose object 8 advances in the direction of arrow a in FIG.

As a result, the loose objects 8 on both sides of the paddle feeder 5
The horizontal screw 12
Are sent to the paddle blades 5a with the result that, as a result, the loose objects 8 above the horizontal screw 12 are also successively fed to this horizontal screw.
12 falls on. The falling loose objects 8 are successively fed to the paddle blades 5a by the horizontal screw 12 and scraped. Then, the rose 8 scraped on the paddle blade 5a
Is lifted up to the skirt portion 4 by the centrifugal force of the paddle blades 5a, sandwiched between the main and sub belts 2 and 3 and conveyed. Therefore, without the horizontal screw 12, only the loose object 8 having the width L of the paddle blade 5a in FIG. 2 can be lifted up, but in the present embodiment, the loose object 8 at the axial length 1 of the horizontal screw 12 is used. It can also be lifted up, and the loose material above it can also be scraped up while scraping, so that the amount of fly up of the paddle feeder 5 can be further increased.

Next, a second embodiment of the present invention will be described. As shown in FIG. 5, the horizontal screw shaft 16 is extended from the horizontal screw shaft 16 shown in FIG. 4 and is extended outside the vertical frame 18. As a result, it is possible to further increase the amount of bulk material taken in by the horizontal screw 23. The horizontal screw shaft 16 of the second embodiment is driven by a shaft (not shown) extending outward from the vertical frame 18.

[Effect of device]

According to the present invention, since the horizontal screw located below the pair of paddle feeders and outside the axial width of the paddle blades is provided,
Of course, this horizontal screw does not extend to each pair of paddle feeders but is a separate single unit so that the amount of lifting of the paddle feeder can be increased. It can be made suitable for an installed belt pinch type unloader.

In particular, the horizontal screw is extended from the paddle shaft,
This horizontal screw scrapes loose objects toward the vicinity of the paddle shaft, and unlike the centrifugal force, the horizontal screw is located between a pair of paddle feeders, and the loose objects are removed from the paddle blades. As it scrapes toward the tip,
As a result, the centrifugal force of the paddle blades exerts a great effect on the scraps that have been scraped up, so that there is no waste in the repelling action of the scraps.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention, and FIG. 2 is A of FIG.
FIG. 3 is a side view of an arrow view, FIG. 3 is a plan view of arrow B of FIG. 2, FIG. 4 is an overall view of a belt-clamping unloader having a paddle feeder, and FIG. 5 is an embodiment of FIG. The top view corresponding to is shown. 1 ... Double belt conveyor, 5 ... Paddle feeder, 5a
...... Paddle blades, 12 ... Horizontal screw.

Claims (1)

[Scope of utility model registration request] 1. An unloader in which a double belt conveyor is hung at the tip of a boom, and a pair of paddle feeders is provided at the lower end of the double belt conveyor, below the pair of paddle feeders, and , Outside the axial width of the paddle blades of these paddle feeders,
A belt-clamping unloader supply device, which is provided with a horizontal screw for scraping loose objects toward the paddle blades.