JPH0817620B2 - Harvester conveyor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device of a harvester for harvesting crops such as potatoes and onions, and more particularly to a transfer device for selecting and collecting crops picked up from a field.

[0002]

2. Description of the Related Art Various techniques have been developed and put into practical use for harvesters for this type of agricultural crop. For example, the harvester 1 shown in FIG. 6 is roughly configured as follows. That is, in order to dig up the agricultural crops in the soil and collect the agricultural crops, the agricultural crops are first excavated by the excavator 2, and the excavated agricultural crops are horizontally arranged at predetermined intervals.
The first conveyer 5 having a gentle inclination formed of the rotating body 4 of FIG.

Subsequently, the horizontal rods 6, which are similarly arranged at predetermined intervals,
The steeply sloping second conveyor 9 having the bucket-shaped receiving portion 8 fixed to the rotating bodies 7 of 6, ...

Further, this agricultural product is conveyed to a horizontal sorting conveyor 12 composed of a rotating body 11 of horizontal rods 10, 10, ... Arranged at the following predetermined intervals, and the quality of the agricultural product is manually determined by the worker. After sorting, the crops are stored in the storage bag 14 and the collection device 15 such as a container via the feed conveyor 13.

[0005]

By the way, in such a harvester 1, the conveyed agricultural products are transferred from the first conveyor 5 to the second conveyor 9 and from the second conveyor 9 to a selection conveyor and a different conveyor. In this case, there is a clearance A, B between the respective conveyors 5, 9 and 9, 12. Further, since the second conveyor 9 has the receiving portions 8, 8, ..., It becomes easy for the agricultural products to be caught between the receiving portions 8, 8.

Therefore, if the conveying speed of the conveyors 5, 9 and 12 is increased, the agricultural products are accelerated and the horizontal rods 6 to the destination are transferred.
This causes the agricultural product to be bruised by being strongly abutted against 10, the receiving part 8 or the like, or being damaged by being sandwiched between the receiving parts 8 and 8, thereby lowering the product value of the agricultural product.

In order to solve this, the speed of these conveyors 5, 9 and 12 may be slowed down, but the efficiency of the harvesting work will be deteriorated.

Furthermore, in order to efficiently pick up agricultural products,
The gently inclined first conveyor 5 is an indispensable configuration, but the independent configuration of the first conveyor 9 and the sorting conveyor 12, for example, increases the number of transmission devices, complicates the configuration, and also in terms of the number of parts. Product cost is high.

The present invention was created in consideration of the above circumstances, and its purpose is to construct a structure in which conventional three-stage conveyors are continuously integrated so as to bruise agricultural crops. The present invention provides a conveyor for a harvester that prevents damage and enables efficient harvesting work.

[0010]

SUMMARY OF THE INVENTION In order to achieve such an object, the present invention has endless rotations on the left and right guide rollers and the drive wheels which are mounted on the front and rear ends of the left and right side plates provided on the frame. In a conveyer device having a conveyor structure in which a body is suspended and a plurality of horizontal rods are installed at predetermined intervals between the endless rolling members, the conveyer device is provided with a plurality of guide rollers and a steeply inclined first conveyer portion. A horizontal second transport unit is integrally configured, and at least one or more intervals are provided for the continuous horizontal rods, and the corresponding horizontal rods each have a pawl that moves downward between the horizontal rods by its own weight when horizontal. A plurality of receiving parts are rotatably attached via a support, and further extends on both sides of the first transporting part from a starting end side to a terminating side, and the back surface of the receiving part which is circulated to the first transporting part is characterized in that the sliding contact steep shaped guide plate were respectively installed It is intended to.

Further, each of the pawls provided on the receiving portion is characterized in that the pawl is slightly curved rearward, or a connecting rod is arranged at a tip end portion of each of the pawls provided on the receiving portion.

[0012]

When the conveyor is driven and the harvester is advanced, the agricultural products excavated by the digging tool, in the steeply inclined first conveyance section of the conveyance device, the claws of the receiving section erected by the guide plate are
By projecting from the horizontal rod, the farm products are locked and picked up securely, and are sequentially conveyed upward. Then, when the agricultural products are transported to the second transportation unit, the claws of the receiving units that lock the agricultural products are rotated downward and enter the space between the horizontal rods, which does not hinder the selection of the agricultural products.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side view of a harvester equipped with the present invention pulled by a tractor, FIG. 2 is a side view of the present invention with partial omission, FIG. 3 is a perspective view thereof, FIG. 4 is a perspective view of a receiving portion, and FIG. [Fig. 6] is a perspective view of another example of the receiving portion.

In the figure, 20 is a harvester, which is a tractor 2.
1, a drive device 23 such as a hydraulic pump is installed in front of a frame 22 provided on both left and right sides of the harvester 20, and is connected to a PTO shaft of the tractor 21 via a universal joint 24. As a power source of 20. 25 is a tow bar. 26 is a left and right claim 22
The side plate attached to
7. Conveyor device 28 and storage bag 2 having the conveyor structure of the present invention
Retrieval devices 30 to which 9 can be detachably attached are respectively arranged. The harvester 20 shown in this embodiment can be replaced with a self-propelled harvester equipped with an engine or the like without being pulled by the tractor 21 and having a crawler mechanism.

Further, from the central portion of the frame 22 to the rear, the steps 31 are provided outside the frame 22, respectively.
And a worker rides on this to sort the quality of the agricultural products conveyed to the horizontal second conveyor of the conveyor 28, and the feeders installed on both outsides of the second conveyor. The non-defective agricultural products are transferred to 32, and the agricultural products are stored in the storage bag 29 through the opening 33 at the rear end. The defective product is dropped from the rear end of the feeding device 32 to the ground.

The recovery device 30 is provided with a support plate 35, which can be moved up and down by an elevating device (not shown) such as a hydraulic cylinder, on a column 34 which is erected at the rear end of the frame 22. When the harvesting work is started, the receiving plate 35 is moved upward as shown in the figure, and conversely, when the amount of agricultural products in the storage bag 29 is increased, the receiving plate 35 is moved downward and the feeding device 32 is operated. The fall distance of the agricultural products released from the opening 33 to the storage bag 29 is reduced, the impact force of the agricultural products is weakened, and the damage is prevented.

Next, the structure of the carrying device 28, which is the subject matter of the present invention, will be described. As shown in FIG. 2 and FIG. 3, the transport device 28 is integrated with a steeply inclined first transport portion 36 and a horizontal second transport portion 37, and is configured to be able to circulate. .

More specifically, the transfer device 2 will be described.
The tip of 8 is installed behind the excavator 27 at a predetermined interval, and the horizontal rods 38, 38 arranged at a predetermined interval are provided.
Both ends of the ... Are fixed to endless traveling members 39, 39 such as an elastic flat belt or roller chain made of rubber or the like. The end portions of the endless traveling members 39, 39 are respectively hooked on a guide roller 41 provided on the shaft 40, and the rear end portion is wound on a drive wheel 43 such as a sprocket provided on the drive shaft 42. The guide rollers 44, 44, ...
9 is arranged to maintain the above-mentioned steeply inclined first conveying section 36 and horizontal second conveying section 37.

Reference numeral 45 denotes a receiving portion provided at a predetermined interval on the carrying device 28. The receiving portion 45 has a plurality of claws 46, 46, ...
Is erected on a support portion 48 of a U-shaped support body 47.
Both base ends of the support body 47 are located on the horizontal rod 38 via the bearing 49, the support portion 48 is located below the front horizontal rod 38, and further from the front horizontal rods 38, 38. Nail 4
6 and 46 are projected and a stopper 50 is arranged so as to be rotatable.

In this embodiment, as shown in FIG.
Is positioned below the horizontal rod 38 two points ahead of the attached horizontal rod 38, and the claws 46, 46, ...
Although it is made to project from the front of 8, it is not limited to this and can be arbitrarily changed such as one or three points ahead. Instead of the receiving portion 45, the receiving portion 51 of FIG.
A connecting rod 52 made of a round bar may be arranged at the tip end of the to make it into a bucket shape.

With this structure, the receiving portions 45 and 51 are
The pawls 46, 46, ... Through the bearings 49, 49 are in an undulated state in which they can project freely from between the front horizontal rods 38, 38. In particular, in the first transfer section 36 of the transfer device 28, when the excavated agricultural product is transferred upward, the receiving sections 45, 51 are used.
It is important to erect the nails 46, 46, ... Of these to efficiently hold the agricultural products.

For this reason, guide plates 53, 53 extending steeply along the back surface of the first transfer section 36 are arranged, and the claws 46 of the receiving sections 45, 51 located in the first transfer section 36 are arranged. , 46, ... are forcibly erected so as to project from the lateral spaces 38, 38.

On the other hand, since the guide plates 53, 53 are not provided in the second transport section 37, the claws 46, 46, ... Of the receiving sections 45, 54 enter between the horizontal rods 38, 38, and
The lateral surfaces 38, 38, ... Of the transport unit 37 are in a flat state, which does not hinder the operator's selection work and facilitates the selection of agricultural products.

[0024]

The present invention has the above-mentioned structure and has the following effects. The transporting device of the present invention is constructed by continuously integrating the transporting means having the conventional three-stage conveyor structure,
In the process of transporting agricultural products, a series of continuous transportation is possible, which prevents bruises and damages of conventional agricultural products and improves product value.

Further, according to the present invention, there is no drop due to the transfer of a conveyor having a different configuration as in the prior art, continuous transport without drop, the transport speed can be set high, and work efficiency is significantly improved.

The agricultural products excavated by the digging tool can be reliably held by the receiving portion protruding from the horizontal rod in the steeply sloping first conveying portion, and the horizontal rod in the horizontal second conveying portion. Since it does not stick out from the space and enters inside, it does not hinder the selection of agricultural products. Moreover, if the transporting device of the present invention has an integrated structure, the power transmission device can be labor-saving, the number of parts can be reduced, and the product cost can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic side view in which a harvester equipped with the present invention is pulled by a trunk.

FIG. 2 is a partially omitted side view of the present invention.

FIG. 3 is a perspective view of the same.

FIG. 4 is a perspective view of a receiving portion.

FIG. 5 is a perspective view of another example of the receiving portion.

FIG. 6 is a schematic side view of a conventional harvester.

[Explanation of symbols]

 28 Conveying device 36 1st conveying part 37 2nd conveying part 38 Horizontal rod 39 Endless traveling body 44 Guide roller 47, 51 Receiving part 53 Guide plate

Claims (3)

[Claims] 1. An endless traveling body is hung on each of left and right guide rollers and drive wheels which are mounted on front and rear ends of left and right side plates provided on a frame, and a plurality of lateral members are provided at predetermined intervals between the endless traveling bodies. in the transport device of the conveyor arrangement which bridged the rod, the conveying device via a plurality of guide rollers, and integrally formed with the first transport unit steep sloped and horizontal shape of the second conveying unit, continuous
At least one or more intervals with respect to the horizontal rod
The horizontal rod that hits the inside of the horizontal rod due to its own weight when horizontal
A receiving part having a plurality of downwardly moving claws formed thereon is rotatably mounted, and further, on both sides of the first conveying part, from the start end side to the end part
A conveyor device for a harvester, characterized in that a steeply inclined guide plate is installed , which extends over the end side and is in sliding contact with the back surface of the receiving part that is passed around to the first conveyor part. 2. The conveyor for a harvester according to claim 1, wherein each of the claws provided on the receiving portion is slightly curved backward. 3. The transfer device for a harvester according to claim 1, wherein a connecting rod is arranged at a tip end portion of each claw provided in the receiving portion.