JP2000069826A - Peanut harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a peanut harvester to enhance peanut harvesting productivity by reducing manual works, to solve problems involved in the conventional machine, which, although enhancing digging-up efficiency, cannot enhance working efficiency, because of necessity for the post-treatment, unless the harvested peanuts are turned upside down and lined up in a given direction before being discharged from the field. SOLUTION: This peanut harvester is equipped with a cutting blade 2 which cuts the upper portion of a peanut 1 in the horizontal direction, digging-up device 3 which digs peanuts 1 vegetating in an inversely truncated chevron shape in plan view in a field, bar conveyor type screening conveyor 4 which transfers harvested peanuts 1 while removing soil therefrom, and turning device 5 which turns the peanuts 1 upside down.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a peanut harvester for harvesting peanuts vegetated in a field.

[0002]

2. Description of the Related Art It is common to turn peanuts dug out by hand and place them on a field.

[0003]

However, the efficiency is not improved by manual work, and therefore, the mechanization is expected. However, in the case of the machine harvesting work, the excavation work efficiency is increased, but the harvested peanuts are not removed. Unless it is turned over and discharged to the field in a predetermined posture, it takes time and labor, such as the need for post-work, and the work efficiency cannot be improved.

[0004]

SUMMARY OF THE INVENTION The present invention provides a peanut harvester which improves the efficiency of harvesting peanuts in peanuts. The following technical measures have been taken. That is, the cutting blade 2 for cutting the upper part of the peanut 1 in the horizontal direction, the digging device 3 for digging the peanut 1, the sorting conveyor 4 for transporting the digged peanut 1 and removing the soil at the time of transportation, and the peanut 1 A peanut harvesting machine comprising a reversing device 5 for turning upside down.

[0005]

The cutting blade 2 cuts the upper part of the peanut 1 vegetated in the field in a horizontal direction when the body is moved and the work is started after driving the rotating parts of the body. Digging device 3
The peanuts 1 dug out by this are transported by the sorting conveyor 4 to the reversing device side, and the soil separated from the peanuts 1 during transport falls.

When the peanut 1 is taken over by the reversing device 5, the peanut 1 is turned upside down, and lands on the field with the leaves and stems positioned below.

[0007]

[Effect] Since peanuts 1 vegetated in a field can be dug, and transported, sorted, and inverted discharge can be continuously performed,
Harvesting efficiency of the peanuts 1 can be improved. In addition, since the leaf stem portion cut in the horizontal direction lands on the field, the standing posture of the peanuts 1 in the field can be stabilized, and the harvesting efficiency can be further improved.

[0008]

Embodiments of the present invention will be specifically described below with reference to the drawings. First, the structure will be described. The frame 6 of the peanut harvester R is positioned obliquely upward and rearward from the front end to the middle, and horizontally (substantially horizontal in the embodiment) from the middle to the rear end. A plurality of laterally long connecting bodies (shown in the drawing) having side walls 7, 8 having an appropriate height in the vertical direction and a predetermined interval in the horizontal direction (an interval at which two peanuts 1 can be harvested in the embodiment). ) To form an integrated framework.

At the front end of the frame 6, a pair of left and right digging blades 9, 9 are arranged in an inverted c-shape in plan view toward the forward direction of the fuselage. The part is detachably attached to each of the side walls 7, 8, and the other end is provided with a slight gap in the vicinity thereof. The digging blades 9, 9 are inclined so that the front part is located lower than the rear part in a side view.

The guide blade 10 is provided with the excavating blade.
Doors 9 and 9, and both lateral ends are provided with side walls 7 and 8.
The front part is inclined so that the front part is located lower than the rear part in a side view. The sorting conveyor 4 comprises a first sorting conveyor 4a provided on the slope of the frame 6 and a second sorting conveyor 4b provided on a substantially horizontal portion. The first sorting conveyor 4a has an axial center in the lateral direction at the rear of the guide blade 10 and at the rear end of the slope portion of the frame 6, and has a bearing on each side wall 7, 8 via a bearing. Rotatable shafts 11 and 12 and sprocket 1 attached to shafts 11 and 12 near the inner wall of each side wall 7 and 8
3, 14 and bars wound around the sprockets 13 and 14
It is composed of a conveyor 15 and the like.

The sprocket 1 attached to the shaft 11
Numeral 3 is formed smaller in diameter than the sprocket 14 to facilitate the transfer of the peanuts 1 moving on the upper surface of the guide blade 10. The second sorting conveyor 4b has a shaft center in the horizontal direction at the rear end of the shaft 14 and at the rear end of the frame 6 in a substantially horizontal plane, and is rotatably provided on each of the side walls 7, 8 via a bearing. 16, 17, the shaft 1 near the inner wall of each side wall 7, 8
The sprockets 18 and 19 attached to the sprockets 6 and 17 and a bar conveyor 20 wound around the sprockets 18 and 19 are provided.

Reference numeral 21 denotes a vertically long vertical frame having a lower end detachably attached to the side walls 7 and 8, and an upper end of the vertical frame 21 is connected by a cylindrical horizontal frame 22. A gear box 23 is removably attached to the center of the horizontal frame 22 in the horizontal direction, and a bevel gear 26 meshing with a bevel gear 25 mounted on a drive shaft 24 rotatably mounted via bearings on the horizontal frame 22 is provided. ing.

The bevel gear 26 is rotatably provided at the center of a gear box 23 via a bearing.
7, and the tip of the input shaft 27 projects forward from the gear box 23 to form a spline shaft. The reversing device 5 includes a cylindrical rotating body 30 attached to a shaft 29 rotatably provided via a bearing on an extension L extending rearward of the side frames 7 and 8 downward.
Side view L using aluminum or resin (for example, plastic)
A plurality of horizontally long reversing plates 31 are attached at predetermined intervals in the circumferential direction on the outer surface of the rotating body 30. In addition,
At the shaft end of the shaft 29, a friction plate 33 that contacts a friction plate 32 attached to the side plate 7, and a spring 34 provided outside the friction plate 33, and a screw portion formed at the end of the shaft 29 is provided. The frictional force between the friction plates 32 and 33 is adjustable by moving the meshing nut 35 in the axial direction.

Reference numeral 28 denotes a self-propelled mobile vehicle (a tractor in this embodiment), which has an output shaft 36 formed with a spline portion fitted to a spline portion of the input shaft 29 at a rear end thereof. A plurality of links 37 to which the horizontal frame 22 is detachably attached are provided. The link 37 is provided so that it can be moved up and down and the vertical position can be adjusted by means of elevating and lowering the moving vehicle 28 (in the embodiment, hydraulic means but may be electric means). An arm 37a has a base fixed to the horizontal frame 22 and is pivotally attached to a part of the link 37.

Numeral 38 denotes a wheel body attached to the shaft end of the drive shaft 24 having grooves arranged in the lateral direction, 39 denotes a wheel body having a plurality of grooves attached to the end of the shaft 12 and 40 denotes a wheel body. A ring formed smaller in diameter than the ring 39 and attached to the end of the shaft 17. An endless band (belt in the embodiment) 41 is wound around the ring 38 and the ring 39, and the ring 39 and the ring An endless belt (belt in the embodiment) 42 is wound around the reference numeral 40.

The front frame 43 has a base portion detachably attached to the horizontal frame 22 and a gear box 44 attached to the lower surface of the tip portion. Further, the cutting shaft 46 is rotatably connected to both gear boxes 44 via bearings. They are connected by a connecting pipe 45 provided inside. Each of the cutting blades 2 and 2 has a gear box 44.
It is attached to the lower end of the longitudinal axis 47, 47 rotatably provided via a bearing so that the position can be adjusted vertically. A bevel gear 49 that meshes with a bevel gear 48 attached to the cutting shaft 46 is provided at the upper end of both longitudinal axes 47. A ring body 50 is provided at the shaft end of the cutting shaft 46,
An endless belt 51 is wound around the ring body 38.

The gage wheel 52 is disposed outside each side frame 9,
The central portion is attached to one end of an arm 54 provided on the side frame 9 via a shaft 53 so as to be rotatable in the vertical direction. And
A screw portion is formed at the other end of the arm 54, and this screw portion is engaged with a screw portion formed at the lower end of a vertically adjusting body 56 rotatably provided on the side frame 9 via a stay 55. ing.

Next, the operation will be described. First of all, the excavation brake is operated by operating the elevating means of the moving vehicle 28.
Select the height of C9. If the height is not sufficient, the vertical adjusting body 56 is turned to change the angle of the arm 54, and the vertical height of the gage wheel 52 is finely adjusted. Thereby, the height of the digging blade 9 can be made accurate.

Next, when the engine is started and the rotating parts of the body are driven, the rotating power is transmitted from the output shaft 36 to the input shaft 27.
To rotate the drive shaft 24, so that the wheel 39 is rotated via the wheel 38 and the endless band 41, and the wheel 40 is rotated via the wheel 39 and the endless belt 42. 38
Then, the wheel body 50 is rotated via the endless belt 51. And
Since the cutting shaft 46 rotates in connection with the rotation of the ring body 50,
This rotational power is transmitted to the vertical axis 4 via bevel gears 48 and 49.
7, 47, and the cutting blade 2 is further rotated. In addition, since the shaft 12 is rotated in association with the rotation of the ring body 39,
This rotational power is transmitted from the sprocket 14 to the bar conveyor 15.
To the sprocket 13 through the bar conveyor 15
Rotate to move the top of the back (in the direction of the arrow).

The shaft 17 is connected with the rotation of the wheel body 40.
, The rotational power is transmitted from the sprocket 19 to the sprocket 18 via the bar conveyor 20.
The bar conveyor 20 is rotated so as to move backward (in the direction of the arrow) above the bar conveyor 20 and move faster than the bar conveyor 15. When the preparation for this work is completed, when the moving vehicle 28 moves forward, when the cutting blade 2 rotating in the lateral direction reaches the peanut 1, the upper end of the peanut 1 is cut into a substantially flat surface. The digging blade 9 digs the root of the peanut 1.

Since the digging blade 9 is provided in an inverted C shape in plan view, the digging load can be reduced, and the gap between the digging blade 9 and the opposing portion of the digging blade 9 is reduced. Since the digging blade 9 is provided, foreign matters such as grass do not stay on the digging blade 9 and the digging operation can be performed smoothly. Then, the peanut 1 whose upper part has been cut and dug out is a guide plate 10
Then, the leaves are taken over by the conveyor of the bar conveyor 15 of the first conveyor 4a in a posture where the leaves and stems are located upward, and are transported upward and backward. Further, the peanuts 1 are moved from the transport end to the second sorting conveyor 4b.
And is conveyed in a substantially horizontal direction rearward.

The bar conveyor 20 is a bar conveyor 15
As the peanuts 1 are entangled and conveyed, they can be separated and the entanglement can be eliminated, so that the reversing device 5 can improve the reversing performance. When the peanut 1 is conveyed by the bar conveyors 15 and 20,
The separated soil falls from the bar conveyors 15 and 20. Thereafter, when the root with the beans rides on the rotating body 30 and the reversing plate 31 from the conveying end of the bar conveyer 20, the rotating body 30 rotates backward (in the direction of the arrow) to invert the peanuts 1 and discharges them to the field. I do. When the peanut 1 lands on the field, the leaf stem portion cut flat by the cutting blade 2 comes into contact with the ground, so that the leaf stem portion is on the lower side and the root portion is in a stable standing posture.

In this operation, the root portion of the peanut 1 can enhance the reversing effect by the reversing plate 31 rotating together with the rotating body 30. Further, since the magnitude of the friction between the friction plates 32 and 33 can be adjusted by changing the pressing force of the spring 34 by operating the nut 35, the adaptation range of the condition (for example, the size, the humidity, etc.) of the peanuts 1 can be improved. .

[Brief description of the drawings]

FIG. 1 is a side view of a peanut harvester.

FIG. 2 is a plan view of a peanut harvester.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Peanut 2 Cutting blade 3 Digging device 4 Sorting conveyor 5 Reversing device

Claims (1)

[Claims] 1. A cutting blade 2 for cutting an upper portion of a peanut 1 in a lateral direction, a digging device 3 for excavating the peanut 1 and a sorting conveyor 4 for conveying the digged peanut 1 and removing soil during the conveyance. Reversing device 5 for reversing peanuts 1 upside down
And a peanut harvester.