JPH1120919A - Device for recovering thing dropped from pivoted bucket conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for recovering bulk dropped from a pivoted bucket conveyor which recovers the bulk dropped from gaps between neighboring buckets when the bulk is thrown in a bucket and returns it to a return bucket. SOLUTION: This device has recovery hoppers 2 for receiving bulk dropped from the gaps between buckets 9 moving a bulk supply section 11, recovery chutes 3 connected thereto, and shutter pots 4 each rear end of which is rotatably journaled by the rear side of the horizontal portion of a return side carrying path of a recovery chute bottom opening in the direction in which a bucket 9 is moved. When the bottom surface of the shutter pot 4 is engaged with and held nearly horizontally by the edge of the opening of the bucket 9 moving below it, the shutter pot 4 receives the bulk dropped from the recovery chute 3 at the top side thereof and stores it, and when the bottom surface of the shutter pot 4 is disengaged from the opening of the bucket 9, the shutter pot 4 is oscillated by its own weight to decelerate and drop the bulk into the bucket 9 along the top surface thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for recovering spills that have fallen below a bucket when throwing spills into buckets of a pivoted bucket conveyor.

[0002]

2. Description of the Related Art Conventionally, in the case of transporting scattered materials such as grains, a pivoted multi-bucket is supported on a chain as described in Japanese Utility Model Publication No. Sho 62-43933. Bucket conveyors are used.

As shown in FIG. 5, a large number of buckets A2 are swingably supported between a pair of chains A1 which are circulated and driven in parallel to the left and right. The scatter is thrown into the bucket A2 from the discharge port A4 of the supply hopper A3 installed above the halfway charging position F, and the bucket A2 is inverted at the discharge position R so that the scatter is discharged from the bucket A2. Is configured. In such a pivoted bucket conveyor, a gap is generally provided between adjacent buckets A2.

[0004] Therefore, the discharge port A4 is provided with a shut-off plate A5 that opens and closes the discharge port A4 only when the bucket A2 moves directly below the discharge port A4. At the position facing the gap, the shielding plate A5 closes the discharge port A4 so that the spill does not fall down from the gap.

[0005]

However, in such a pivoted bucket conveyor, the timing of feeding the scattered material into the bucket continuously running under the discharge port of the supply hopper is determined only by the opening / closing operation of the blocking plate. It was very difficult to control and prevent spillage of spills below the bucket.

[0006] Even in a bucket conveyor in which adjacent buckets are wrapped with each other, a gap is created in the wrap portion between the buckets due to the swinging of the bucket due to the impact at the time of throwing in the powder, and the drop of the powder from the bucket occurs. Was.

If the spilled material falls on the lower part of the transport path of the bucket and accumulates, the movement of the bucket is hindered, causing a failure in the chain and its driving mechanism. It was necessary to frequently clean the scattered material.

In view of the above, the present invention has been made to solve the above-mentioned problem, and a pivoted bucket which collects spills falling from a gap between adjacent buckets at the time of throwing splatters into the bucket and returns the splatters to a return bucket. An object of the present invention is to provide a spill recovery device for a conveyor.

[0009]

In order to achieve the above object, the spill recovery device for a pivoted bucket conveyor according to the present invention moves a spill supply unit provided in a horizontal portion of a forward conveying path of the pivoted bucket conveyor. A collection hopper for receiving spills falling below the bucket, and a bucket provided continuously below the collection hopper and moving on a horizontal portion of a return-side transport path provided below the horizontal portion of the outgoing-side transport path. A collection chute that guides the spread, and a rear end turned around a horizontal axis orthogonal to the movement direction to a rear side of the opening of the lower end of the collection chute at a horizontal portion of the return-side transport path with respect to the bucket movement direction. The bucket is movably supported, and is formed in a tray shape narrower than the facing space between the left and right inner sides of the opening edge of the bucket. The lower surface is engaged with the opening edge of the bucket moving downward. When held in a horizontal position, the spatter that has flowed down the collection chute is received on the upper surface, and when the lower surface is disengaged from the opening edge of the bucket as the bucket moves, the front end is placed in the bucket by its own weight. And a shutter pot for swinging the powder to flow down into the bucket along the upper surface.

[0010]

When the scattered material is fed into the bucket by the scattered material supply unit, the scattered material spilled downward from a gap between adjacent buckets is received by the collection hopper and collected.
The collecting chute provided continuously below the lower part flows down.

In a state where the lower surface of the shutter pot installed on the lower surface of the lower end opening of the collecting chute is engaged with the opening edge of the bucket moving downward and is held in a substantially horizontal posture, the inside of the collecting chute is Is received by the upper surface of the shutter pot and temporarily stays there.

Thereafter, when the lower surface of the shutter pot is disengaged from the opening edge of the bucket due to the forward movement of the bucket, the front end of the shutter pot swings into the bucket by its own weight, so that the shutter pot stays on the upper surface of the shutter pot. The scattered material flows down into the return bucket along the upper surface.

When the bucket further advances, the rear side of the opening edge engages with the lower surface of the shutter pot whose front end is inclined downward and pushes up, so that the scattered material flowing down inside the collection chute is removed. Then, it is received by the upper surface of the shutter pot which has become substantially horizontal again, and the inflow of the scattered material into the bucket is blocked.

As the bucket advances further, the portion engaging the lower surface of the shutter pot moves from the rear side of the opening edge of the preceding bucket to the front side of the opening edge of the subsequent bucket, and eventually the tendency edge of the subsequent bucket. When the front side of the shutter pot is disengaged from the lower surface of the shutter pot, the front end portion of the shutter pot swings again into the subsequent bucket to cause the scatter to flow down into the subsequent bucket.

The above-described operation of the shutter pot is repeated in accordance with the movement of the bucket, and the spills falling from the bucket when the splatter is supplied by the splat supply unit are moved along the horizontal portion of the return-side transport path. Collected sequentially.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view showing an embodiment of a spill recovery device for a pivoted bucket conveyor according to the present invention. The spill recovery device 1 according to the present invention includes a recovery hopper 2 and a recovery hopper 2 provided continuously thereunder. A chute 3 and a shutter pot 4 pivotally supported at the lower end of the collection chute 3 so as to be vertically swingable are used. And the horizontal portion of the return-side transport path B.

As shown in FIG. 2, the pivoted bucket conveyor 5 has a pair of guide rails 7 attached to the left and right inner wall surfaces of a dustproof cover 6 also serving as a machine frame.

These guide rails 7 are a pair of endless chains 8 circulated by a driving device (not shown).
The center of both upper sides of a bucket 9 is supported at equal intervals between these chains 8 by a pivot portion 10 so as to be freely swingable.
Since the position of the center of gravity is below the connecting portion, the posture in which the opening edge is upward is maintained.

These buckets 9 are continuously driven in one direction along with the movement of the chain 8, and the forward conveying path A
After the splinter is fed into the splinter supply unit 11 provided in the middle of the horizontal portion, the splinter moves to a splinter discharge unit (not shown) provided downstream thereof, where the bucket 9 is inverted and transported. The emptied bucket 9 is discharged, and the empty bucket 9 is configured to circulate again to the outgoing-side transport path A via the return-side transport path B.

The scatter supply section 11 is provided with a scatter supply chute 12 for charging the scatter into the bucket 9 moving on the forward transport path A. A flow rate adjusting damper 1 for adjusting the amount of the slag is provided in the slag input chute 12.
3 is provided so that the opening of the flow rate adjusting damper 13 can be adjusted from the outer side surface of the spout chute 12 so as to obtain an optimum dose according to the spout to be conveyed.

The periphery of the opening at the lower end of the chute 12 is surrounded by a skirt portion 14 for preventing scattering of the chute. A rear end of a plate-like input-side shutter pot 15 that is curved upward is rotatably supported on the end side.

The operation of the input-side shutter pot 15 is basically the same as that of the shutter pot 4 provided at the lower end of the collecting chute 3, and when the gap between the front and rear buckets 9 passes below the lower end opening of the input chute 12. When the bucket 9 moves to a position immediately below the opening, the spatter flowing down the input chute 12 is temporarily received on the upper surface 15A, and the spatter swings downward to flow the spatter into the bucket 9. As described above, it swings up and down with the movement of the bucket 9.

At a position close to the downstream side of the spout supply unit 11, when the front end of the input-side shutter pot 15 swings upward, it receives the spatter that has been flipped forward, and a bucket 9 that passes below. A brush 16 for dropping into the inside is provided.

When the splatter thrown into the bucket 9 moving on the outgoing side transport path A is conveyed to a splatter discharge unit (not shown), the tilt levers 17 fixed to both sides of the bucket 9 here. Abuts against a tilt cam installed in the splinter discharge section, tilts the bucket 9 with its movement,
Discharge the conveyed spills. The bucket 9 emptied at the spout discharge section recirculates through the return side conveyance path B to the spout supply section 11 of the outgoing side conveyance path A again.

On the other hand, the upper end openings of the two collection hoppers 2 provided in the spill collection device 1 are respectively moved forward and backward so as to approach the bottom surface of the bucket 9 passing through the horizontal portion of the outgoing side conveyance path A. , Which are arranged adjacent to each other and pass from the spout supply chute 12 to the spout supply section 11.
When the scatter is supplied, the scatter spills below the bucket 9 and a part of the scatter that cannot be prevented by the brush 16 provided adjacent to the downstream side of the scatter supply unit 11. And can be accepted.

The collection chute 3 provided below the collection hopper 2 is provided to guide the powder flowing down in the collection hopper 2 to the bucket 9 moving on the return side conveyance path B. ing.

As shown in FIG. 3, the upper end opening 3A of the collecting chute 3 is suspended from the lower part of the collecting hopper 2 by a plurality of bolts 18, and the lower end opening of the hopper 2 and the upper end of the collecting chute 3 are provided. External air is allowed to flow in from a gap S formed between the opening 3A and the air flow to promote the flow of the scatter.

The lower stream 3B formed inside the collection chute 3 is inclined obliquely downward so that the lower end opening 3C faces rearward in the direction of movement of the bucket 9 on the return side transport path B.

A pair of bearing brackets 19, each having a bearing hole 19A, are fixed to the rear outer left and right positions of the lower end opening 3C of the recovery chute 3, and the shutter pot 4 is provided between these bearing holes 19A. A support shaft 20 fixed to the rear end is rotatably supported.

The shutter pot 4 has a flat bottom 4A.
Is formed in a tray shape provided with vertical walls 4B on both left and right sides thereof, and the rear of the bottom 4A is curved upward and connected to the support shaft 20.

The front side 9A of the opening edge of the bucket 9 passing through the return side conveyance path B is the bottom 4A of the shutter pot 4.
When passing through the lower surface, the shutter pot 4 has its front end 4
C is directed substantially forward in the moving direction of the bucket 9 and becomes substantially horizontal.
The left and right sides and the rear side of the lower end opening 3C of the collection chute 3 are covered by the vertical walls 4B on both sides of the shutter pot 4 and the curved portion behind the bottom 4A, so that the lower end opening 3C is almost covered. ing. At this time, the litter that has slipped down the lump distribution lower surface 3B of the collection chute 3 is temporarily retained and held on the upper surface of the bottom 4A of the shutter pot 4.

The width of the shutter pot 4 is smaller than the distance between the inner wall surfaces 9C on the left and right sides of the bucket 9,
It is formed so as to be able to enter the inside of the bucket 9 passing below. Therefore, when the front edge 9A of the opening edge of the bucket 9 that moves forward from the front end 4C of the shutter pot 4 comes off, the shutter pot 4 loses its own weight (including the weight of the stagnation accumulated on the upper surface of the bottom 4A). The platter held by the forwardly inclined shutter pot 4 moves into the bucket 9 by swinging about the support shaft 20.

At this time, the scattered material flowing down the lower surface 3B of the scattered logistics from above the collecting chute 3 obliquely downward and downward is once received by the upper surface of the bottom of the shutter pot 4 which is tilted forward.
Since it is guided into the bucket 9, it is prevented from flying outside the bucket 9.

When the bucket 9 moves further forward,
The rear side 9B of the opening pushes up the lower surface of the bottom 4B of the shutter pot 4 and again shields the lower end opening 3C of the collecting chute 3, so that the spillage of scattered matter from the gap between the buckets 9 is prevented.

Next, FIG. 4 is a side view showing a main part of another embodiment of a spill recovery device for a pivoted bucket conveyor according to the present invention. The embodiment shown in FIG.
The swinging moment about the support shaft 20 'acting in the direction of tilting the front end 4'C downward by its own weight is applied to the weight support rod 21' on the support shaft 20 'to which the shutter pot 4' is fixed.
The weight 22 is attached via the. The other parts are configured in the same manner as in the above-described embodiment.

In this embodiment, the swinging moment is reduced by the weight of the weight 21, and when the shutter pot 4 'falls into the bucket 9, the shutter pot 4'
Of the shutter pot 4 ', the noise generated by the collision between the front end 4'C of the shutter pot 4' and the inner surface of the bucket 9 can be reduced. The scatter can also be prevented from scattering outside the bucket.

In this embodiment, the weight 22 is screwed into a screw formed on the outer peripheral surface of the weight support rod 21, and the weight 22 is axially mounted on the weight support rod 21.
The position can be adjusted, and according to the amount of scatter to be received by the shutter pot 4 ′ and the moving speed of the bucket 9,
The shutter pot 4 'can follow the movement of the bucket 9 in an optimal state.

In each of the above-described embodiments, vertical walls are formed on both sides of the bottom portion of the shutter pot to prevent the scatter from falling from both sides of the shutter pot and to shield the opening at the lower end of the collecting chute. However, when the amount of spillage flowing down onto the shutter pot is small, the shutter pot is moved while the gap between adjacent buckets passes below the lower end opening of the collection chute. It is sufficient to have a function of temporarily retaining the sprouts on the pot, in which case these vertical walls may be omitted.

Further, in each of the above-described embodiments, the collection hopper and the collection chute formed separately are used by being connected by bolts. However, the collection chute may be formed integrally with the lower part of the collection hopper. Good.

Although the lower surface of the distribution log of the collection chute is inclined obliquely downward and rearward toward the lower end opening, it is not always necessary to incline downwardly and obliquely downward if there is little bouncing of the particles to be handled.

Further, in each of the above-described embodiments, the spill recovery device is provided with a collection hopper in order to receive the scattered material falling below the bucket in a wide area before and after the scattered material supply unit in the forward transport path. The collection chute and the shutter pot are arranged in two sets in the moving direction of the bucket.
One set or three or more sets may be used according to the range and amount of the drop.

[0042]

According to the spill recovery device of the pivoted bucket conveyor of the present invention, the scattered material is supplied from above into the bucket by the scattered material supply unit provided in the horizontal portion of the forward conveying path of the pivoted bucket conveyor. At this time, the spills spilling downward from the gap between the adjacent buckets are received by the collection hopper and made to flow down to the collection chute, and the return pot is moved to the lower end of the collection chute by the shutter pot attached to the lower end of the collection chute. When the gap between the buckets moves, the shutter pot temporarily receives the spill flowing down the collection chute, and when the bucket moves directly below the collection chute, the shutter pot swings downward by its own weight. The bucket moving on the return side transport path is moved upward in the forward direction. Can be received reliably 撒物 dropped from the side conveying path.

As a result, the litter placed in the bucket can be transported to the discharge unit without waste, and the litter does not fall to the lower part of the return-side transport path and deposits. There is no danger that the movement of the chain will be hindered and the chain and its driving mechanism will not be damaged, thereby facilitating maintenance work such as cleaning.

In addition, the shutter pot has a very simple structure that can be swung up and down by moving the bucket.
Even if the moving speed of the bucket is changed, it is possible to perform the following operation without fail, and since there is no need for a drive source for operating the shutter pot or an expensive control mechanism for adjusting the timing to the movement of the bucket, maintenance is easy. In addition, the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a spill recovery device for a pivoted bucket conveyor according to the present invention.

FIG. 2 is a front view showing an embodiment of a spill recovery device for a pivoted bucket conveyor according to the present invention.

FIG. 3 is a main part side view showing a shutter pot mounting structure in one embodiment of the spill recovery device for the pivoted bucket conveyor of the present invention.

FIG. 4 is a side view of a main part showing another embodiment of the spill recovery device for the pivoted bucket conveyor of the present invention.

FIG. 5 is a diagram showing an example of a conventional pivoted bucket conveyor.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Spill collection apparatus 2 Collection hopper 3 Collection chute 3A Upper end opening 3B Distributing lower surface 3C Lower opening 4,4 'Shutter pot 4A Bottom 4B Vertical wall 4C, 4'C Front end 5 Pivoted bucket conveyor 6 Dustproof cover 7 Guide rail Reference Signs List 8 Chain 9 Bucket 9A Front side of opening edge 9B Rear side of opening edge 9C Inner wall surface 10 Pivot part 11 Sprout supply section 12 Sprout insertion chute 13 Flow rate adjustment damper 14 Skirt section 15 Shutter pot 15A Upper surface 16 Brush 17 Tilt Lever 18 Bolt 19 Bearing bracket 19A Bearing hole 20, 20 'Support shaft 21 Weight support rod 22 Weight A Outgoing transport path B Return transport path S Clearance

Claims (1)

[Claims] 1. A collection hopper for receiving spills falling below a bucket moving on a spill supply unit provided in a horizontal portion of a forward-side transport path of a pivoted bucket conveyor; A collection chute that guides the scattered material to a bucket that moves on a horizontal portion of a return-side transport path provided below a horizontal portion of the forward-side transport path; and a return side of an opening at a lower end of the recovery chute. The rear end of the horizontal portion of the transport path with respect to the bucket moving direction is rotatably supported at the rear end around a horizontal axis orthogonal to the moving direction, and is narrower than the opposing interval on the left and right inner sides of the opening edge of the bucket. When the lower surface is engaged with the opening edge of the bucket moving downward and is held in a substantially horizontal posture, the scattered material flowing down the collection chute is received by the upper surface, and the bucket is bucket-shaped. A shutter pot that causes the front end to swing into the bucket by its own weight when the lower surface is disengaged from the opening edge of the bucket with the movement of the lower surface, and to cause the spatter to flow down into the bucket along the upper surface. A spill recovery device for a pivoted bucket conveyor.