JP2975356B1 - Sugarcane harvester using agricultural tractor - Google Patents

Abstract

A sugarcane reaper can be configured easily and easily by using a tractor for cultivation, a sugarcane reaper can be carried out smoothly and efficiently, and the cost of an attachment can be reduced as much as possible. Can be installed, removed,
In addition, the arrangement of necessary attachments and their mechanisms must be devised so that work operations can be performed easily and easily. A divider attachment 1 is attached to the front left and right sides of a body frame of an agricultural tractor T, a base cutter attachment 2 is attached to a three-point link L of the agricultural tractor, and the divider attachment 1 includes a divider 11 and the divider. 11 has a push-down roller 12 that rotates forward, and the divider 11 and the push-down roller 12 are supported by a parallel link support 13 so as to be able to move up and down, and are made to be able to move up and down by an elevating cylinder. thing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sugarcane reaper, and a simple construction of a sugarcane reaper by attaching an attachment to an existing agricultural tractor, whereby a sugarcane reaper can be efficiently performed. It can also be used for stocking work in a sugarcane field after harvesting sugarcane, and this stocking work can be performed easily and efficiently.

[0002]

2. Description of the Related Art Sugarcane harvesting is a heavy labor consisting of a series of tasks such as cutting, removing, and transporting sugarcane. However, these harvesting operations are continuously performed in addition to specialized machines such as a reaper, a defoliator, and a transporter. Some combiners do it. As the conventional simplest sugar cane reaper, for example,
There is one described in Japanese Patent No. 3448. This one has a pair of left and right raising chains that rotate inward in front of the dedicated body frame, and causes the falling and entangled sugar cane to be unraveled and unraveled by the pair of left and right raising chains, and the center of the body frame A base cutter (a cutter for root-cutting sugarcane roots) is provided below the lower part, and the root-cut sugarcane is transported in the lateral direction of the reaper, and is arranged side by side at right angles to the ridges. The reaper is moved out of the traveling path so as not to obstruct the travel of the reaper and to prevent the reaper from stepping on the reaper. Also,
There is a method using a means for generating a pair of left and right rotors having a spiral projection (this may be referred to as a “crop lifter”) (Japanese Patent Application Laid-Open Nos. 50-157146 and 50-55949). In addition, when a relatively large combine or the like is used, a rotor that rotates inward and a rotor that rotates outward (hereinafter, these are referred to as "divider rotors") are provided on the left and right, respectively, so that the sugarcane which is laid down and entangled is formed. It is common to make it unravel efficiently and effectively. In this way, the conventional reaper is a special-purpose machine, which cuts the sugarcane while running on its own, arranges the sugarcane in a direction perpendicular to the ridges in preparation for the next leafing work, and secures the travel path of the reaper. , Or post-processing that is performed automatically following the root cutting operation, the mechanism is not simple,
Because of this, such a reaper is expensive and cannot be used for agricultural work other than sugarcane reaping, and it is not easy for individual farmers to purchase the reaper individually. Also,
Since the direction of sugarcane growing from one plant is random, in order to cut these roots as smoothly as possible without damaging them, rotate the left and right base cutters inward (right cutters rotate left , The left cutter must be rotated clockwise). However, for this reason, the soil tends to be brought to the center of the ridge and piled up,
On the other hand, sugarcane grows on uneven ridges and falls in random directions, so that it cannot be cut uniformly and deeply. If the stump is too high, the yield of the next year will be greatly adversely affected. (If the stump is high, the next year, sugarcane buds will emerge from the high joints, which will cause a decrease in yield.) Must be aligned at a low position (this is usually called stock alignment). This stocking operation is usually performed manually and is a very troublesome operation. There is a strong demand that this stock alignment be performed with a simple working machine.

[0003]

SUMMARY OF THE INVENTION According to the present invention, a sugarcane reaper can be constructed easily and easily by using an agricultural tractor as a self-propelled means, and a sugarcane reaper can be carried out smoothly and efficiently. Further, the arrangement of the necessary attachments and the mechanism thereof are devised so that the cost of the attachments can be reduced as much as possible, and the attachment, detachment, and work operation can be performed easily and easily.

[0004]

Means taken to solve the problem The means taken to solve the above problem are constituted by the following elements (a) to (e). (A) Divider attachments 1 are attached to the front left and right sides of the body frame of the agricultural tractor T, and a base cutter attachment 2 is attached to the three-point link L of the agricultural tractor. (B) The divider attachment 1 is a divider 11 And a push-down roller 12 that is located at the rear center of the divider 11 and rotates forward. The divider 11 and the push-down roller 12 are supported by the parallel link support 13 so as to be able to move up and down, and are able to move up and down by the elevating cylinder 14. (C) The base cutter attachment 2 has a pair of left and right base cutters 21 and a drawer roller 22 that is located behind the base cutter and rotates forward. It is attached to the base cutter frame so that it can move up and down It, (d) based on the cutter attachment 2 of the frame 23 provided with a hydraulic pump, the hydraulic pump, the agricultural tractor via a universal joint PTO
Driven by a shaft (power take-out shaft).
(E) The divider 11, the push-down roller 12, the base cutter 21, and the pull-out roller are each driven by a single hydraulic motor, and these hydraulic motors and the two lifting cylinders are driven by the hydraulic pump.

[0005]

The divider tractor 1 is fixed to the front side of the body frame of the agricultural tractor T with mounting brackets, stays, and the like, and the base cutter attachment 2 is attached to the three-point link L of the agricultural tractor T. The sugarcane reaper in which the divider 11 is arranged in front of T and the base cutter 21 is arranged behind the tractor is assembled. The specific mechanism and structure of the divider 11 and the base cutter 21 of the sugarcane reaper are not different from those of the conventional sugarcane reaper, and the respective hydraulic motors are driven by the discharge oil of the hydraulic pump, and the conventional sugarcane reaper is used. It works like that of a machine. When this sugarcane reaper is advanced forward across the ridges of the sugarcane field, the sugarcane rising from the ridges is caused to be drawn in between the right and left dividers 11 and 11, and then the sugarcane is pushed down as the agricultural tractor T moves forward. It is pressed down by the roller 12 and is gradually pushed down by the forward rotation of the pushing down roller 12 (see FIG. 2). The sugarcane pushed down under the belly of the tractor is cut off by the base cutter 21. When the sugarcane that has been forcibly pushed forward is cut off, the root thereof jumps upward, but the pulling roller 2 immediately behind the base cutter 21 is pulled out.
It is held down by 2. Since the draw-out roller is rotating forward, the draw-out roller is drawn backward while holding down the root-cut sugarcane. In this way, the sugarcane is pulled backward while being pressed by the push-down roller and the pull-out roller that rotate forward, so the rooted sugarcane jumps up and down, left and right, catches under the tractor's belly, and slides forward. There is no such thing as being pushed. Therefore, the reaper can push the felled sugar cane down by the push-down roller and the pull-out roller, and can smoothly move forward while being pulled backward, and the felled sugar cane can be laid side by side forward on the ridge. . Since the divider attachment 1 is supported by the vehicle body frame via the parallel link support 13,
The height of the base cutter is adjusted by the elevating cylinder 14, and the height of the base cutter is easily adjusted and changed by raising and lowering the base cutter attachment 2 by the three-point link. Further, since the height of the pull-out roller is easily adjusted and changed by the elevating cylinder 24, the divider 11, depending on the situation of the sugarcane to be cut,
The heights of the base cutter 21 and the draw-out roller 22 can be adjusted appropriately. Further, since the base cutters 21 and 21 are driven by a single hydraulic motor, they can be reversed. Therefore, by adjusting the height of the base cutter to the height of the stock alignment, and running it along the ridges of the harvested sugarcane field while reversing it (rotating the left and right base cutters outward). Then, the cut root stock is cut again at an arbitrary depth by a base cutter, and the top portion of the ridge is jumped to the left and right to flatten the so-called stock alignment. The ground height of a normal agricultural tractor is about 40 cm. Although there is no particular problem with this, it is desirable that the ground height of the vehicle body is higher, so it is desirable to use a tractor that can adjust the vehicle height.

[0006]

Next, an embodiment will be described with reference to the drawings.
The basic configuration of the divider attachment 1, the basic configuration of the base cutter attachment, and the driving mechanisms of the divider, the base cutter, the push-down roller, and the pull-out roller are as described above. The parallel link support 13 of the divider attachment 1 has a substantially U-shape in which left and right parallel links are horizontally connected, and is formed by connecting front and rear vertical members 13a by three horizontal links 13b arranged vertically. . The rear vertical member 13a is fixed to the front left and right side surfaces of the body frame of the agricultural tractor T by mounting brackets 13c and stays 13d. A pair of divider rotors 15 are respectively provided on the left and right front vertical members of the parallel link support 13.
a and 15b are attached, and the pushing roller 12 is rotatably attached to the parallel link support 13. However, the pushing down roller 12 has a fixed position and is driven in the forward rotation direction (the direction of the arrow shown in the figure) via a chain 34 by a hydraulic motor 33 attached inside the parallel link supporting body 13. It is. further,
A lateral blade 1 is provided on the outer periphery of the pushing roller 12.
A large number of 2a are provided at regular intervals to improve the catch against sugar cane. The frame 23 of the base cutter attachment 2 is connected to the three-point link L of the agricultural tractor T.
3 is provided with a hydraulic pump 25 and an oil tank 26,
The drive shaft of the hydraulic pump 25 is connected to the PTO of the agricultural tractor.
It is connected to a shaft (power take-out shaft) via a universal joint. The pull-out roller 22 is supported by an arm 27 attached to a bracket on the lower surface of the frame so as to be able to move up and down. You. Further, the pull-out roller 22 is provided with a disc-shaped flange 2.
2a, a number of blades are provided at regular intervals on the outer periphery of the cylindrical portion, and the pressed sugarcane is guided rearward by the left and right flanges, and the blades improve the catching of the sugarcane. By raising and lowering the frame 23 with the three-point link L, the height of the base cutter 21 and the root cutting height of the sugarcane are adjusted, and the hydraulic cylinder 24 adjusts the height of the pull-out roller 22 and the degree of pressing of the sugarcane by the roller. I do. A number of operation levers 30 are provided near the driver's seat. The lever 30a is a forward / reverse switching lever of the base cutter,
30b is a normal rotation of the divider 11 and the pushing roller 12;
This is a reverse rotation switching lever. Reference numeral 30c denotes a lifting / lowering operation lever of the left divider, 30d denotes a lifting / lowering operation lever of the right divider, and 30e denotes a lifting / lowering operation lever of the draw-out roller. By operating these operation levers, the base cutter, the left and right dividers, and the pushing roller are rotated forward and backward, and the left and right dividers 11 and the pull-out roller 22 are moved up and down. That is, the switching valves are operated by the operation levers 30a to 30e, and the lifting cylinder 14 of the divider attachment 1, the lifting cylinder 24 for the drawing roller, the divider rotor 15a,
The drive hydraulic motors 31 and 32, the push-down roller 12, and the pull-out roller 22 are driven to drive the divider rotor 1
5a, 15b, the draw-out roller 22 is moved up and down. Since the base cutter attachment 2 is raised and lowered by the three-point link L of the agricultural tractor, the base cutter attachment 2 is raised and lowered by operating the three-point link operating lever of the agricultural tractor. Adjusted. Since the base cutter 21 is driven by the hydraulic motor 35, the rotation direction can be freely changed by the operation lever. Therefore, the stocking operation can be performed by running over the ridges while rotating the rotation direction of the base cutter outward (in the direction opposite to the illustrated arrow).

[0007]

By combining the divider attachment and the base cutter attachment with the agricultural tractor, a simple sugarcane reaper can be constructed. This is because the sugarcane is smoothly drawn under the belly of the tractor by providing the push-down roller in the front and the drawer roller in the rear, so that the sugarcane is not caught on the lower surface or side surface of the tractor. This is made possible by the fact that it can be smoothly fed to the rear of the tractor. In addition, the hydraulic pump is driven by the PTO shaft of the tractor, and the drive mechanism that drives the diva-ider rotor, the base cutter, the push-down roller, and the pull-out roller independently by a hydraulic motor is employed, thereby simplifying the drive mechanism. It is made possible. Since the divider attachment 1 and the base cutter attachment 2 can be obtained at a much lower cost than a conventional machine for cutting sugarcane, the farmer can cut the sugarcane at relatively low cost by using the farming tractor already possessed. Machine can be configured. Since the base cutter is driven by the hydraulic motor, it can be rotated outward. By adjusting the root cutting depth and running the base cutter outward while straddling the cut ridges, the stock is aligned.

[Brief description of the drawings]

FIG. 1 is a side view of a sugarcane harvester using an agricultural tractor.

FIG. 2 is a work situation diagram of a sugarcane reaper using an agricultural tractor.

FIG. 3 is a side view of a divider attachment.

FIG. 4 is a front view of a divider attachment.

FIG. 5 is a perspective view of a base cutter attachment.

FIG. 6 is a layout view of an operation lever.

FIG. 7 is a view showing a stock arrangement work situation.

[Explanation of symbols]

 T: Farming tractor 1: Divider attachment 2: Base cutter attachment 11: Divider 12: Push-down roller 13: Parallel link support 14: Elevating cylinder 21: Base cutter 22: Pull-out roller 23: Base cutter frame 24: Elevating cylinder 25: Hydraulic pump 27: Arm 28: Hydraulic motor for driving drawer roller 31, 32: Hydraulic motor for driving divider 11 33: Driving motor for pushing down roller 12 L: Three-point link

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-200317 (JP, A) JP-A-1-137918 (JP, A) JP-A-63-7714 (JP, A) JP-A-62-1987 179310 (JP, A) Japanese Utility Model 1-109927 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) A01D 45/10

Claims (2)

(57) [Claims] 1. A splitter attachment 1 is attached to the front left and right sides of a body frame of an agricultural tractor T, a base cutter attachment 2 is attached to a three-point link L of the agricultural tractor, and the divider attachment 1 includes a divider 11; A push-down roller 12 which is positioned at the rear center of the divider 11 and rotates forward, and the divider 11 is supported by the parallel link support 13 so as to be able to move up and down,
The base cutter attachment 2 has a pair of left and right base cutters 21 and a drawer roller 22 that is located behind the base cutter and rotates forward. The hydraulic pump is mounted on the frame 23 of the base cutter attachment 2 so that the hydraulic pump can be moved up and down by 24. The hydraulic pump is driven by the PTO shaft (power take-out shaft) of the agricultural tractor through the universal joint. , Divider 11, Push-down roller 12, Base cutter 2
1. Each drawer roller 22 is driven by a single hydraulic motor, and these hydraulic motors and the two lifting cylinders 1 are driven.
A sugarcane harvester using an agricultural tractor in which the hydraulic pumps 4, 24 are driven by the hydraulic pump. 2. A cane harvester using the agricultural tractor according to claim 1, wherein the agricultural tractor is adjustable in height above the ground.