JPH11225526A - Two ridge beet harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a beet harvester for two ridges, capable of preventing the admixture of stem and leaf in a two ridge digging. SOLUTION: An upper conveyor 5 is installed below the front half part of a truck frame 1 to be pulled by a tractor and above a lower conveyor 4 for digging two ridges, comprising a low tip end and a high rear end. A subframe 15 is protrusively installed with its rear end part fixed to both the sides of the middle part of a lower conveyor frame 14 and is vertically removable forward through hydraulic pressure. A front left foliage cleaner 16 and a front right foliage cleaner 17 which are rotated outward are laid at the front end part of the subframe 15 and a side foliage cleaner 35 facing two ridges to be dug next is projected slantingly forward from the right middle part of the subframe 15. A foliage separating apparatus 13 consisting of rocking spring wires 70 and rocking bars 73 which are crossed to the middle part of the truck frame 1, opposed to the rear end part of the lower conveyor 4 and alternately arranged through fixed intervals and a foliage dragging roller 99 horizontally laid at the front lower side of the rocking spring wires 70 and the rocking bars 73.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-row beet harvester for excavation in a two-stage operation system in which tapping and excavation of foliage are separated.

[0002]

2. Description of the Related Art In a beet harvesting operation, tapping for cutting and removing the head foliage and crown of the beet is performed in a first stage, and roots in the ground (hereinafter referred to as beets) are removed in a second stage while removing the foliage. ), And a two-stage harvesting method in which soil is temporarily stored in a tank after sediment separation has been implemented.

[0003] As a one-row harvester of this type, a lower conveyor provided with a digging blade at the tip below a bogie frame pulled by a tractor, and an upper conveyor disposed above the lower conveyor. A lower end of the lower conveyor is disposed in a pair, a rear conveyor is provided below a lower portion of the lower conveyor, and a foliage cleaner facing a ridge to be dug next to the right in the forward direction of the bogie frame; At the rear end, an annular rotary elevating device that receives and lifts a beat from the post-conveyor is erected, and a tank with a discharge device is disposed below a terminal portion of a forward feed conveyor provided at an upper portion of the circular rotary elevator. One mounted on the upper surface of an intermediate portion of a bogie frame is known.

[0004] By the way, if beet is mixed with foliage, it becomes a target of discount. Therefore, it is necessary to harvest beets with no foliage. In the above-described one-row harvester, the foliage cleaner provided in the middle part on the right side moves the foliage placed on the next ridge to be dug to the left by the digging width at the same time as digging. There is no need to dig foliage with beets. Therefore, when one ridge was harvested sequentially, there was no problem in harvesting beets without foliage.

[0005]

However, when two ridges are harvested by the two-stage method in order to increase the harvesting efficiency, the excavation width needs to be approximately 90 cm from the beet ridges (usually 66 cm). Right 2 to dig next while digging 2 ridges
When the foliage of the row is moved to the left with a foliage cleaner,
The foliage of one ridge on the right side of the excavation ridge can be moved to the left, but the foliage of one ridge on the right side must be moved more than 1 m to move it to the left of the excavation width. This was almost impossible. That is, in the case of two-row harvesting, there is a problem that the beet which does not contain the foliage cannot be removed because the foliage cannot be removed from the excavation width. An object of the present invention is to provide a two-row beet harvester that can prevent foliage contamination.

[0006] In addition, when two ridges are harvested, the capacity of the tank with the discharge device necessarily increases, and the height of the tank increases.
As the height of the tank increases, the diameter of the annular rotary elevating device must be increased in order to increase the lifting height of the beet. Then, the lateral width of the circular ring-shaped rotary elevating device also becomes large, which causes troubles in circling or running on the road at the field terminal. Therefore, another object of the present invention is to provide a two-row beet harvester equipped with an elevating device that does not increase the width even when the height is increased.

[0007] Further, in the two-row harvest, the weight of the beet housed in a tank with a discharge device for temporary storage increases. Therefore, when the wheels supporting the bogie frame are one wheel each on the left and right sides, it is impossible to prevent the settlement in the field. Therefore, in order to avoid this, it is only necessary to arrange two wheels running in the furrow in series in a row on the left and right. However, there is a problem that this wheel arrangement deteriorates the small turning performance of the harvester. The present invention provides two series
Another object of the present invention is to obtain a two-row beet harvester in which the small turning performance does not decrease even if the wheels are arranged.

[0008]

In order to provide a two-row beet harvester in which foliage is not mixed, first, a digging blade is provided on both sides of a tip portion below a bogie frame pulled by a tractor to dig two ridges. A lower conveyor to be taken and an upper conveyor above the lower conveyor are arranged in a pair with a lower end and a higher rear end. The sub-frames are fixed to the rear end portions on both sides of the intermediate portion of the lower conveyor frame and are provided so as to protrude forward and to be vertically movable via hydraulic pressure. At the front end of the subframe, an outwardly rotating front left foliage cleaner and a front right foliage cleaner, and a lateral foliage cleaner facing two ridges to be digged diagonally forward from the right middle part of the subframe next. I do. Oscillating rods and oscillating spring lines alternately arranged at predetermined intervals across the middle portion of the bogie frame and facing the rear end of the lower conveyor, and front and lower portions of the oscillating bars and the oscillating spring lines Is provided with a foliage pulling roller which is horizontally laid horizontally. Further, a rectangular elevating device is erected vertically at the rear end of the bogie frame. Below the rear end of the lower conveyor, there is provided a post-feeding conveyor whose rear half is inserted into the lower half of the rectangular lifting device. A tank with a discharge device is mounted on the bogie frame in front of the foliage separating device so as to be tiltable sideways. Further, the rectangular lifting device is provided with a forward conveyor protruding forward from the upper center and having a terminal portion facing above the tank with the discharging device.

The swinging rod and the swinging spring line of the foliage separating device may be configured such that a concavely curved protruding portion is formed below, and the swinging bar has a weight movably attached to the upper rear protruding portion, The foliage pull-in roller was provided with a rectangular rubber plate attached along each of four longitudinal surfaces of a square pipe.

The above-mentioned square elevating device is provided with a substantially rectangular elevating conveyor frame attached to the front and rear, a front side is fixed vertically to a rear end of a bogie frame, and a slat-shaped elevating conveyor is provided along the inside of the elevating conveyor frame. Around the clockwise rotation as viewed from the rear, a plurality of beat holding arms are erected at predetermined intervals perpendicular to the rotation direction of the elevating conveyor, and the starting end of the forward conveyor is horizontally positioned at the upper center of the elevating conveyor frame. Attached to the vertical holding portion of the lifting conveyor via a small gap with the tip of the beat holding arm, turned upward at the upper part, facing the upper left side of the forward conveyor, and then downward. The diverting inward and downward elevating conveyor is provided with the same width as the elevating conveyor.

Simultaneous excavation of two ridges increases the capacity of the beet to be stored in the tank with the discharging device. In order to prevent the bogie frame from sinking in the field due to this weight, wheels that roll in the front and rear ridges are arranged on both sides in the rear half of the bogie frame. That is, the wheel connecting bar is fixed to both ends of the axle crossing the rear half of the bogie frame along the traveling direction, and the front end and the rear end of the wheel connecting bar are respectively formed to be rotatable around the vertical axis. Brackets were pivoted, and wheels were attached to the outside of the U-shaped bracket. In addition, in order to prevent the small turning performance of the two-row beet harvester of the present invention from being reduced by the wheel arrangement, both ends of a connecting rod are pivotally attached to an intermediate portion of the front and rear U-shaped brackets in parallel with the wheel connecting bar, A double-acting hydraulic cylinder having one end pivotally connected to the intermediate portion of the wheel connecting bar and the other end pivotally connected to one of the U-shaped brackets is provided.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Beets are usually cultivated in a furrow of about 66 cm. Therefore, for 2-row harvesting, the width is 90c.
The bottom and upper conveyors, which convey the excavated material obliquely upward and rearward, are paired, and the front end is lower and the rear end is higher, and is located below the center of the bogie frame. Set up. The lower conveyor and the upper conveyor are slat conveyors that can drop earth and sand during transportation. The bogie frame is provided with a hitch body pivotable up and down, left and right connected to a hitch of a tractor at a front end portion, has a width slightly larger than a width of the lower conveyor, and is framed in a U shape in a plan view with a closed front end portion. . Then, wheels running in the ridges are arranged in front and rear on both sides of the rear half of the bogie frame so that the two-row beat harvester of the present invention does not sink in the field.

The lower conveyor is provided with a lower conveyor frame on both sides, and fixed to both ends on the opening side of a sub-frame formed in a U-shaped frame on both sides of an intermediate portion of the lower conveyor frame, and has a closed front end. Part protrudes below the front end of the bogie frame. Then, in order to raise the sub-frame and the lower conveyor integrally, a single-acting hydraulic cylinder is provided between an intermediate portion on both sides of the sub-frame and both side surfaces of the bogie frame. That is, when the piston of the single-acting hydraulic cylinder is retracted, the front end of the lower conveyor rises together with the subframe, and the engraving blade rises above the ground surface. When the hydraulic pressure is released, the piston of the single-acting hydraulic cylinder extends due to the weight of the lower conveyor, subframe, etc., so that the excavating blade can excavate underground beats.

At the front end of the subframe, a left foliage cleaner and a right foliage cleaner rotating above the ridge to be dug are provided so as to prevent the foliage from being mixed with the beet to be dug.
It was provided so as to be in contact with the foliage on the ridge by descending the sub-frame. The foliage cleaner is a known rubber beater, in which the lower side rotates outward from the inside and moves to the outside of the ridge for excavating the foliage. Also, in order to move the foliage of the two ridges to be excavated next while excavating the beet, from the head of the beet, a lateral foliage cleaner is projected from the middle part on the right side of the sub-frame so as to be diagonally right forward and can be adjusted in height. did.

As for the lateral foliage cleaner, one rubber beater is provided at the center, and one rubber beater is provided at each of the left and right sides. Then, rotate the rubber beater at the right end counterclockwise in rear view so that the foliage of the second row from the right ridge currently being excavated (the next ridge will be the right ridge) slightly to the right. Let it. The center and its left rubber beater are then rotated clockwise in a rearward direction so that the next digging moves the foliage of the ridge on the left side to the left and exposes the head of the beet.

Although the foliage on the ridge to be dug is removed by the left and right front foliage cleaners described above, some foliage is still conveyed to the upper rear along with the beat by the lower conveyor and the upper conveyor. In order to remove the foliage, a foliage separation apparatus was provided facing the rear end of the lower conveyor. This foliage separating device is a foliage pulling roller horizontally suspended below the rear end of the lower conveyor by temporarily arresting the conveyed material conveyed by the lower conveyor by alternately arranging rocking rods and rocking spring lines. The foliage is pulled in at the tip of, and dropped on the ground.

The swinging bar swings back and forth around a straight axis horizontally laid on a bogie frame, and has a downwardly projecting concave portion. The oscillating spring wire is a coil torsion spring, which is attached to an oscillating spring wire mounting shaft that extends transversely to the rear of the straight axis and parallel to the straight axis, and has a downwardly projecting concave portion. The rocking rod and the concave curved portion of the rocking spring wire have a pocket shape, and temporarily block the conveyed material of the lower conveyor. The foliage pull-in roller was configured such that rubber plates were attached in parallel to the four surfaces in the longitudinal direction of the square pipe, and the foliage was drawn at the outer edge of the rubber plate and dropped onto the ground by rotation.

Below the rear end of the lower conveyor, a slat-shaped rear conveyor is horizontally provided rearward, and a sorting roller is provided obliquely at the end of the rear conveyor to resiliently contact the conveyor surface.
The sorting roller is a known one that is forcibly rotated forward and downward to drop a beat that hits the roller to the outside of the conveyor. In addition, the sorting roller pulls in the foliage if it is present in the conveyed article and passes it rearward. A rectangular elevating device that receives a beat that falls outward from the post-conveyor and conveys the beat upward is erected vertically at the rear end of the bogie frame.
The rectangular lifting device forms a lifting conveyor frame into a substantially rectangular frame, and stretches a slat-like lifting conveyor along the inner periphery in a clockwise rotation as viewed from the rear. Further, a plurality of beat holding arms arranged and projecting at right angles to the rotation direction are arranged on the elevating conveyor at predetermined intervals. In the rectangular lifting device, a forward conveyor is provided at the center upper portion so as to protrude forward, and the rear half of the above-mentioned backward conveyor is inserted at the lower center.

Further, an inwardly moving elevating conveyor having the same width as the elevating conveyor is provided on the left side of the rectangular elevating device when viewed from the rear. In this inner conveyor, the vertical ascending section facing the vertical ascending section of the elevating conveyor turns rightward, and further turns downward at the upper left side of the advance conveyor, and rotates at the same speed as the elevating conveyor. is there. The portion where the vertical rising portion of the inwardly moving conveyor is turned rightward is a portion where the beat of the vertically moving conveyor vertically falls, and in the downwardly changing portion of the inwardly moving conveyor, the beat which is conveyed rightward. Falls on the advance conveyor.

The tank with the discharge device is placed on the above-described bogie frame so as to be tiltable sideways in front of the foliage separating device.
The tank with the discharge device is formed in a rectangular box with the right side open, the lower end of the base of the discharge elevator having a U-shaped cross section is fitted on the front and rear right sides, and is pivotally attached to the upper side via the discharge elevator tilting central shaft. . In order to provide the tank with the discharge device so as to be able to tilt sideways, a tank tilt bracket is provided at the front left and right sides of the upper surface of the bogie frame with an interval slightly larger than the length of the tank with the discharge device. A tank with a discharge device is fitted between the tank tilting brackets, and the lower left end is pivotally attached to the tilting bracket. In addition, a single-acting hydraulic cylinder is arranged in front and back between the right side of the bogie frame and the right side of the tank with the discharging device, and the tank with the discharging device rises to the right around the tilting center axis by extension of the single-acting hydraulic cylinder. When the tank is tilted and the hydraulic pressure is released, the tank returns to its horizontal position by its own weight.

The discharge elevator having a U-shaped cross section is pivotally mounted on both sides of a base portion at the front and rear of the right side of the tank with the discharge device. Then, a single-acting hydraulic cylinder is arranged between the front and rear middle part of the tank with the discharge device and the front and rear middle part of the lower frame of the discharge elevator, and when the hydraulic pressure of the single-acting hydraulic cylinder is released, the piston extends by its own weight. When the discharge elevator is tilted to the right in front view around the discharge elevator tilt center axis, and the piston of the single-acting hydraulic cylinder is reduced in hydraulic pressure, the discharge elevator stands up around the discharge elevator tilt center axis. In addition, a floor conveyor is wound between the inside of the lower left end of the tank with the discharge device and the inside of the tip of the discharge elevator, and the hydraulic motor provided at the tip of the lower frame of the discharge elevator runs the upper surface to the right and discharges. The beet was discharged from the tank with the device. The tank with the discharge device and the discharge elevator were provided with a wire mesh on the side, and the bottom was formed on the bottom along the right side of the gap.

A double-acting hydraulic cylinder is used to change the direction of the wheels so that the wheels arranged in series in front and rear can turn slightly in a pillow or the like. That is, a wheel connecting bar is fixed to both ends of an axle crossing the rear half of the bogie frame along the traveling direction, and a front end and a rear end of the wheel connecting bar are respectively rotatable around a vertical axis. A bracket is provided in parallel, a wheel is rotatably mounted on the outer side of the U-shaped bracket, and a connecting rod having both ends pivotally mounted at an intermediate portion of the front and rear U-shaped brackets is provided in parallel with the wheel connecting bar. One end and the other end of a double-acting hydraulic cylinder are pivotally connected to an intermediate portion of the wheel connecting bar and one of the U-shaped brackets, respectively, and one of the U-shaped brackets is extended by retracting and extending the double-acting hydraulic cylinder. It turns around, and the turning is transmitted to the other U-shaped bracket by the connecting rod, and the left and right wheels are turned at the same angle.

[0023]

Embodiments of the present invention will be described below with reference to the drawings. Note that the left and right displays in the following description are displayed in the forward direction unless otherwise specified. In FIG.
1 is a trolley frame, for excavating the beat of 2 ridges,
A front end portion having a width of about 1.2 m and a length of about 3.4 m is formed by a square pipe having a closed U shape in a plan view, and is supported by wheels 2, 2 arranged in series on the left and right sides of the rear half, respectively. . The wheels of the wheels 2 and 2 project equally to the left and right of the bogie frame 1 so as to straddle two or four ridges. The two ends of the axle 2A are fixed to the center of a wheel connecting bar 2B connecting the wheels 2 and 2 respectively (see FIG. 8).

In order to improve the small turning performance of the present harvester in which the wheels 2, 2 are juxtaposed in series, the front and rear wheels 2, 2 are turned right and left via hydraulic pressure. That is,
Referring to FIG. 2 and FIG. 8, the inner end portion of the U-shaped bracket 2C on which the wheels 2, 2 are rotatably mounted on the outside is pivotally connected 2D, 2D around the longitudinal axis to the wheel connecting bar 2B. The connecting rod 2F is mounted outside the pivots 2D, 2D in parallel with the wheel connecting bar 2B via pivots 2E, 2E to the U-shaped brackets 2C, 2C. A double-acting hydraulic cylinder 2G is pivotally connected 2J at a base end to an intermediate portion of the wheel connecting bar 2B, and a piston distal end is pivotally mounted 2H to a rear U-shaped bracket 2C. At this time, at the intermediate position of the piston stroke, the front and rear wheels 2,
2 so that it follows the straight direction. When the piston is retracted, the rear wheel 2 turns right around the pivot 2D, and the front wheel 2 turns right by the same angle as the rear wheel 2 by the connecting rod 2F. When the piston is extended, the front and rear wheels 2, 2 similarly turn to the left. The left wheels 2, 2 have exactly the same configuration as shown in FIG.

In FIG. 1, a hitch body 3 which turns vertically and horizontally is projected from the front end of the bogie frame 1 for towing by a tractor. In addition, a lower conveyor 4 and an upper conveyor 5 having a width of about 90 cm are provided below the center portion of the bogie frame 1 with a front end portion slightly lower than the center portion of the bogie frame front end via a beat conveying interval. Arrange rear high. The lower conveyor 4 is of a well-known slat type in which rods are laid in a grid pattern between belts provided side by side so as to drop the excavated soil. The upper conveyor 5 has the same form as the lower conveyor. On both sides of the front end of the lower conveyor 4, a left engraving blade 6 and a right engraving blade 7 in the form of a plow blade plate are opposed to the front ends on both sides of the lower conveyor frame 14, and protrude inward. I have.

Numeral 8 denotes a rectangular elevating device vertically provided at the rear end of the bogie frame 1. Numeral 9 denotes a post-feeding conveyor which receives a beat falling from the rear end of the lower conveyor 4 and horizontally conveys it rearward. . The rear half of the backward conveyor 9 is inserted into the center of the lower half of the rectangular lifting device 8. Further, a forward conveyor 10 is provided at the center of the upper portion of the rectangular lifting device so as to protrude forward. Reference numeral 11 denotes a tank with a discharge device, which is mounted on the upper surface of the bogie frame 1 so as to be tiltable leftward in front of a foliage separating device 13 described later provided in front of the rectangular lifting device 8. Reference numeral 12 denotes a discharge elevator provided on the left side of the elevator with a discharge device so as to be capable of being turned upside down. The forward conveyor 10 has a terminal portion facing the upper side of the tank 11 with a discharge device.

Referring further to FIG. 2 which is an enlarged view of a part of FIG. 1, reference numeral 14 denotes a lower conveyor frame provided on both sides of the lower conveyor 4, and reference numeral 15 denotes a U-shape having a closed front end. It is a sub-frame consisting of a frame-like body. The sub-frame 15 has an open rear end fixed to the rear half of the left and right lower conveyor frames 14, and a closed front end protruding obliquely upward and forward. 16 is the front left foliage cleaner, 1
Reference numeral 7 denotes a front right foliage cleaner, which is provided at a lower front portion of the bogie frame 1 with a gap between beet ridges therebetween (FIG. 1).
0). The front left foliage cleaner 16 and the front right foliage cleaner 17 are provided on the front surface of an L-shaped mission 18 fixed to the front end of the sub-frame 15 in a suspended manner (see FIG. 10). It is a known rubber beater that protrudes outward by force.

The middle portion of the lower conveyor frame 14 and the rear half of the sub-frame 15 are connected by a connecting piece 19. Outside the front end of the sub-frame 15, right and left ruler wheels 20 are provided by support rods 21 so as to be freely adjustable in height. Reference numeral 22 denotes a single-acting hydraulic cylinder for raising and lowering the lower conveyor 4, which is disposed on both sides of the intermediate portion of the bogie frame 1, respectively. The single-acting hydraulic cylinder 22 has an upper end pivotally connected to the bogie frame 1, a lower end of the piston pivotally connected to the rear half of the sub-frame 15, and the lower conveyor frame 14 and the sub-frame 15 when the piston is retracted. The left moat blade 6 and the right moat blade 7 are provided so as to rise integrally from the ground surface. When the hydraulic pressure is released, the piston automatically extends due to the weight of the lower conveyor 4 and the like, and the left and right moat blades 6 and 7 can be inserted into the ground to perform the beat mining. I have.

The upper conveyor 5 is provided with upper conveyor frames 23 on the left and right sides, and an intermediate portion of the upper conveyor frame is suspended on both sides of the bogie frame 1 by a chain 24 to adjust a gap with the lower conveyor 4. . 25 is a guide plate, the upper end of which is fixed to both outer side surfaces of the bogie frame 1, and the lower part from the middle part slides on the connecting piece 19 to prevent the sub-frame 15 and the lower conveyor 4 from rolling. I have.

In FIG. 1, the hitch body 3 has a U-shaped metal fitting 27 vertically fixed to the rear end of the hitch central body 26 fitted to the front center of the bogie frame 1. It is rotatably connected to the left and right by a vertical pin 28 communicating with the front center. Both ends of a double-acting hydraulic cylinder 31 are pivotally connected to the tip of a bracket 29 projecting to the left side of the front end of the frame 1 and the tip of a bracket 30 projecting to the middle of the hitch central body 26, respectively. The hitch body 3 is turned around the vertical pin 28 by extension and contraction of the double-acting hydraulic cylinder 31 (see FIG. 8).

A parallelogram link 32 is provided in front of the front end of the hitch central body 26, and a connecting member 33 connected to the traction hitch of the tractor is horizontally fixed to the front end of the parallelogram link 32. Further parallelogram link 3
The two ends of the two double-acting hydraulic cylinders 34 are pivotally connected between the upper end of the rear link 2 and the upper end of the front link, respectively. Is operated to move the connection fitting 33 up and down. When the connecting bracket 33 is connected to the hitch of the towing tractor and the double-acting hydraulic cylinder 34 is extended to lower the connecting bracket 33, the front end of the bogie frame 1 is raised with the tractor hitch as a fulcrum. The blades 6 and 7 can cross the beet ridge. Reference numeral 3A denotes a stand for parking, which is detachably attached to the front link of the parallelogram link 32.

Numeral 35 denotes a lateral foliage cleaner, which projects from the middle part on the right side of the sub-frame 15 to the front diagonally right of the bogie frame 1 (see FIGS. 8 and 10). Reference numeral 36 denotes a mission, which is a height adjusting device 3 attached to the subframe 15.
7 is fixed to the lower part of the front face 7 obliquely rightward and forward. The height adjusting device 37 adjusts the height of the transmission 36 by a screw crank. On the mission 36, a center rubber beater 38 is provided on the front surface so as to be centered on the right ridge from the right ridge during excavation, and the rear surface of the mission 36 is separated from the center rubber beater 38 by about 1/2 of the ridge interval. A left rubber beater 39 and a right rubber beater 40 are provided on the right side with one ridge therebetween.

As shown in FIG. 15, the center rubber beater 38 is rotated by the mission 36 so as to move the tapped leaves L on the beet ridge C in the direction of arrow c. The left rubber beater 39 moves the foliage L moved by the central rubber beater 38 in the direction d, and is rotated so as to represent the head of the beat. The right rubber beater 40 is rotated so as to move the foliage L on the beet ridge D rightward in the traveling direction (the direction of the arrow e in the figure). In FIG. 15, A and B are ridges during excavation, and C and D are ridges for next excavation. F is the forward direction, R is the beat, and L is the tapped foliage.

Next, referring to FIG. 3, the rotation mechanism of the lower conveyor 4 and the upper conveyor 5 will be described. Reference numeral 41 denotes a vertical left bearing plate, the upper edge of which is fixed to the lower surface on the left rear half of the bogie frame 1. Reference numeral 42 in FIG. 9 denotes a right bearing plate, which is vertically provided on the right side of the bogie frame 1 so as to face the left bearing plate 41. A lower conveyor driving stepped chain gear 43 and a conveyor driving chain gear 44 (see FIG. 9) are respectively opposed to the left and right bearing plates 41 and 42 at an intermediate portion between the left bearing plate 41 and the right bearing plate 42, and fixed to the lower conveyor driving shaft 45. I have. The conveyor drive chain gear 44 is configured to rotate counterclockwise in a side view via a rotation mechanism described below that is driven by the PTO of the traction tractor.

The idler gears 46, 4 are disposed obliquely above and forward of the conveyor driving stepped chain gear 43 via the left side surface of the bogie frame 1.
8. The upper conveyor drive chain gear 47 is pivotally supported. Then, the chain 49 is sequentially wound in an S shape from the small chain gear of the lower conveyor driving stepped chain gear 43 to the upper surface of the idler gear 46, the lower surface of the upper conveyor driving gear 47, and further to the upper surface of the idler gear 48. The upper conveyor drive chain gear 47 is reversely rotated with respect to the lower conveyor drive chain gear 43. An upper conveyor drive shaft 50, one end of which is fixed to the upper conveyor drive chain gear 47, crosses the bogie frame 1 at right angles and is supported on the left side surface of the bogie frame 1 (see FIG. 9).

Referring to FIG. 2, the lower conveyor 4 is fixed to a lower conveyor driving shaft 45 and a lower conveyor driven shaft 52 which is supported by crossing the front ends of the left and right lower conveyor frames 14 at right angles. It is wound around left and right gears (not shown), and is rotated so that the upper surface runs backward by the rotation of the conveyor drive stage chain gear 43. The upper conveyor 5 is wound around left and right gears (not shown) fixed to an upper conveyor driving shaft 50 and an upper conveyor driven shaft 53 which is supported by being orthogonally traversed by the front ends of the left and right upper conveyor frames 23. The upper conveyor driving chain gear 47 is rotated so that the lower surface runs backward by the counterclockwise rotation.

When the beet and the tapped foliage fall from the terminal of the lower conveyor 4, the foliage separation device 13 pulls in the foliage and drops it to the ground surface. The configuration will be described with reference to FIGS.
In FIG. 6, the inverted U-shaped frame 54 is
Immediately above the rear end, it is fixedly mounted on the upper surface of the bogie frame 1. Brackets 55 and 56 project rearwardly slightly inward from both ends of the inverted U-shaped frame 54, the front ends of the arms 57 and 57 are overlapped at the rear ends, and the straight shaft 58 is inverted at the overlapped position. An arm 57 penetrates in parallel with the U-shaped frame 54, and is rotatably mounted about a straight axis 58, and a terminal 59 protruding from the arm 57 is retained. The inner space between the left and right arms 57, 57 is about 85 cm. Rotating pieces 60, 61, 62 and 63 are sequentially and rotatably fitted on the right axis 58 inside the left and right brackets 55 and 56 from the left.

Reference numeral 64 denotes a swing spring wire mounting shaft, one end of which is fixed to the right arm 57, the other end of which penetrates the rear end of the left arm 57, and the protruding end is fixed with a nut 65.
It is provided in parallel with the straight shaft 58. On the swing spring wire attachment shaft 64, five swing spring wire attachment pieces 66 are provided so as to project obliquely upward and forward from the central portion at left-right symmetric positions. As shown in FIG. 7, the collar 68 is externally fitted to a tip of a shaft 67 fixed in parallel with the rocking spring mounting shaft 64, and the rocking spring wire mounting piece 66 is stopped by a stopper 69. ing. Reference numeral 70 denotes an oscillating spring wire, which is a torsion coil spring in which one end is formed as a linear portion from the coil portion, and the other end is formed as a concave curved portion having a length of about 50 cm downward.

The oscillating spring wire 70 has a coil portion which is fitted around the shaft portion 67 of the oscillating spring mounting piece 66, and a collar 68 and a stopper 6.
It is kept at 9 Reference numeral 71 denotes a swing spring wire attaching / detaching piece, which penetrates the straight portion of the swing spring wire 70 in the front-rear direction and is fixed by a set screw 72 provided at the top.
The swing spring wire attaching / detaching piece 71 is located in front of the swing spring wire attaching piece 66 and stands upright on the upper surfaces of the rotating pieces 60, 61, 62 and 63. The oscillating spring wires 70 are arranged one by one at positions close to the right and left arms 57, and the remaining three are equally spaced at a distance of five in total of 80 cm. It is inserted through the spring wire attaching / detaching piece 71 and is fixed with a set screw 72.

Reference numeral 73 denotes a swinging rod, which is formed by bending a steel rod having a diameter of 16 mm into a curved portion which is fitted to the rotating piece 60 or the like from the front.
A concave arc curved portion having a length of about 50 cm downward from this curved portion,
A straight portion is formed at the upper rear. The swinging bar 73 fixes the curved portion to the rotating pieces 60, 61, 62, and 63 from the front, respectively, and arranges the swinging portion at the center of the arrangement interval of the swinging spring wires 70 and swings the linear portion. Dynamic spring wire mounting shaft 64
And projecting rearward at right angles. The swing bar 73 receives the elastic force of the swing spring wire 70 fixed to the swing spring wire attaching / detaching piece 71 when swinging.

Reference numeral 74 denotes a weight, into which the rear protruding portion of the swing bar 73 is inserted at the center in the longitudinal direction, and is fixed by a set screw 75 so as to be adjustable in position. The weight 74 serves to resist the backward turning of the concave curved portion of the swing rod 73. Reference numeral 76 denotes a handle support plate, and the inverted U-shaped frame 5
4 is inclined rearward on the upper surface, and stands upright in front of the left bracket 55. A screw rod 78 is rotatably supported by a universal bearing 77 pivotally attached to the upper end of the handle support plate 76. The lower end of the female screw cylinder 79 screwed to the lower end of the screw rod 78 is connected to a swing spring line. It is rotatably attached to the end of the mounting shaft 64, and the nut stopper 65 is used in common to prevent the nut from coming off.

When the crank handle 80 is fixed to the upper end of the screw rod 78 projecting upward from the universal bearing 77 and the crank handle 80 is rotated to raise or lower the female screw cylinder 79, the swing spring wire mounting shaft 64 is moved. Ascend or descend. The raising and lowering raises or lowers the rear protruding portion of the rocking bar 73, rotates the rotating pieces 60 or 63 forward or backward, and turns the lower concave curved portion of the rocking bar 73 backward or forward. It is supposed to. The five oscillating spring wires 70 provided on the oscillating spring wire mounting shaft 64 as described above, and the four oscillating rods 73 whose tips are fixed to the rotating pieces 60 to 63 have lower ends. The rear end of the lower conveyor 4 faces the rear end of the lower conveyor 4, and the lower end of the lower end of the lower end is located at the same height.

Next, in FIG. 3, reference numeral 81 denotes a left swing bearing plate, and a long through hole 82 provided at the front portion is externally fitted to a swing center shaft 83 projecting below the front portion of the left bearing plate 41. And it is attached so that it can swing around this central axis. A bracket 84 projects vertically behind the long through-hole 82, and a bearing part of a bolted bearing 85 that penetrates the bracket 84 horizontally is fitted around the swing center shaft 83, and the bracket 84 is sandwiched between the bolts. The bolted bearing 85 is fixed to the bracket 84 by nuts 86 screwed into the bracket 84. That is, nuts 86, 8
When the bolt 6 is loosened and the bolted bearing 85 is moved into and out of the bracket 84, the mounting position of the left swing bearing plate 81 with respect to the left bearing plate 41 can be adjusted back and forth.

The left rocking bearing plate 81 is screwed with a nut 89 abutting on the lower surface of the projecting piece 87 to an eye bolt 88 vertically penetrating a projecting piece 87 fixed to the upper edge of the rear end.
9 adjusts the amount of upward projection of the eyebolt 88 from the projecting piece 87. The coil spring 9 engages the upper end with the projection 91 provided on the bogie frame 1.
0 is inserted into the upper end of the eyebolt 88, and the left swing bearing plate 81 is elastically lifted by the coil spring 90. The left swing bearing plate 81 has a rubber plate 93 attached as a cushion on the upper surface of a projecting piece 92 fixed to the rear of the projecting piece 87. The left bearing plate 41
A bracket 94 is fixed above the protruding piece 92 at the rear of the bracket 94, and a bolt 95 that penetrates the bracket 94 up and down is fixed with a nut 96 that sandwiches the bracket 94 up and down.
The lower end surface of 5 is in contact with the rubber plate 93. That is, the upper limit of the rotation of the left swing bearing plate 81 about the swing center axis 83 is determined by the amount of protrusion of the bolt 95 projecting downward from the bracket 94.

In FIG. 9, reference numeral 97 denotes a right swing bearing plate, which is attached to the right bearing plate 42 by a swing support shaft 98, and is provided at the lower right side of the bogie frame 1 at substantially the same height as the left swing bearing plate 81. Is provided. In FIG. 3, reference numeral 99 denotes a foliage retraction roller. The center of the roller is obliquely downward and rearward of the center of the rear end of the lower conveyor 4, and is horizontally mounted inside the left swing bearing plate 81 and the right swing bearing plate 97. Supported. 9 is a left shaft 101 of the foliage retraction roller 99.
Is supported. Reference numeral 103 denotes a foliage pulling roller driving chain gear, which is fixed to the left shaft 101 of the foliage pulling roller 99 and is provided on the outer surface of the left swing bearing plate 81.

Reference numeral 104 denotes an oscillating chain gear, and the left bearing plate 4
The lower end of the arm 106 is pivotally connected to the upper end of an arm 106 having a lower end 105. The upper surface of the arm 106 is higher than the lower surface of the large chain gear of the lower conveyor driving stepped chain gear 43. The lower end and the upper end of the coil spring 107 are connected to the middle part of the arm 106 and the left bearing plate 4 respectively.
1 attached to the upper upper bracket 108 and pivoted 105
The arm 106 is elastically pulled obliquely upward by a coil spring 107 around the center. And chain 109
Is wound around the foliage pull-in roller drive chain gear 103 from the rear surface portion of the foliage pull-in roller drive chain gear 103 through the lower surface portion of the large chain gear of the lower conveyor driving stepped chain gear 43 and the upper surface portion of the swinging gear wheel 104. The pull-in roller 99 is rotated forward and downward by the lower conveyor drive chain gear 43.

Even when the left swing bearing plate 81 moves up and down around the swing center axis 83, the arm 106 of the swing chain gear 104 swings back and forth while receiving the elastic force of the coil spring 107. To rotate the foliage retraction roller drive chain gear 103 without any trouble. As shown in FIGS. 4 and 5, the foliage retraction roller 99 described above is
10 are closed at both ends, and a left axis 101 and a right axis 1
02 is protruded along the line. And rectangular rubber plates 11 along the four surfaces of the square pipe 110, respectively.
1 is fixed with a backing plate 112 and a set screw 113. The rubber plate 111 has a thickness of 5 mm and is several meters from the outer edge of the backing plate 112.
m protruding, the tip of which is pulled in the foliage. The rotation diameter of the foliage retraction roller 99 is 110 mm to 120 m.
m is preferred. Further, in order to pull the foliage from the beet and the foliage falling from the terminal of the lower conveyor 4, the outer peripheral speed of the foliage retraction roller 99 is set to 1.
About seven times faster.

FIG. 14 is a schematic right side view for explaining the operation of the foliage separating apparatus having the above configuration. That is, the beat R and the foliage L that are sandwiched between the lower conveyor 4 and the upper conveyor 5 and conveyed rearward (arrow A) are separated by the lower conveyor 4.
When it falls downward from the rear end, it is temporarily dammed by the swing spring wire 70 and the swing bar 73. When damming, the swinging spring line 70 and the swinging bar 73 are pushed by the beat R and the foliage L and swing in the direction of the arrow. At this time, the oscillating spring wire 70 and the oscillating bar 73 vibrate finely by their elasticity. Swing spring wire 7
A gap is created between the beat R and the foliage L due to the zero and the rocking and vibration of the rocking bar 73, and the foliage comes down. The tip of the foliage pull-in roller 99 pulls in the foliage that has come down, and falls down. At this time, the left swing bearing plate 81 and the right swing bearing plate 97 (FIG. 9) which support the foliage retraction roller 99 are supported.
(See FIG. 3), the rear end portion moves finely up and down as indicated by the arrow in FIG. 3 around the swing center axis 83 to activate the foliage retraction action of the foliage retraction roller 99. The beet from which the foliage falls downward and is separated falls into the post conveyor 9 and is conveyed backward (arrow B).

Referring to FIG. 9, the power transmission system will be described. An input shaft 114 is connected to the PTO of the towing tractor. Reference numeral 115 denotes a first intermediate shaft, which is supported on the right side surface of the hitch center body 26 and whose front end is connected to the input shaft 114.
The second intermediate shaft 116 is connected to the rear end. Reference numeral 117 denotes a reverse rotation transmission fixed to the right side surface of the bogie frame 1, which is connected to a rear end of the second intermediate shaft 116 and has a front foliage cleaner rotation shaft 118 disposed forward through an internal gear mechanism (not shown). The second intermediate shaft 116 is rotated in the opposite direction. The front end of the front foliage cleaner rotation shaft 118 is the mission 1
8, the front left foliage cleaner 16 and the front right foliage cleaner 17 are rotated outward.

Reference numeral 119 denotes a third intermediate shaft, which transmits power from the rear of the reverse rotation mission 117 to the main transmission 120. The main mission 120 is fixed on an underframe 121 erected on the axle 2A, and rotates a side foliage cleaner rotation shaft 122 from a rear output shaft via a gear mechanism. The front end of the side foliage cleaner rotation shaft 122 is connected to the above-described mission 36, and rotates each rubber beater of the side foliage cleaner 35 via an internal gear mechanism (not shown).

Reference numeral 123 denotes a lifting conveyor drive shaft which is rotated via a chain gear connected to the front output shaft of the main transmission 120, and rotates the lifting conveyor driving chain gear 124 clockwise in rear view. Reference numeral 125 denotes a lifting conveyor driven chain gear, which receives rotational power from a lifting conveyor driving chain gear 124 via a chain 126, and
A conveyor drive wheel (not shown) disposed on the lower right side of the lower part is rotated, and the elevating conveyor 8 is rotated clockwise in rear view. In FIG. 9, reference numeral 174 denotes a forward-feed conveyor shroud;
Reference numeral denotes a chain cover of an intermediate chain (not shown) for driving the advance conveyor 10 and a lifting conveyor 163 to be described later.

Next, the tank 11 with a discharge device will be described with reference to FIG.
A tank with a discharge device (hereinafter, abbreviated as a tank) 11 has an upper surface opened, a trapezoidal frame in a front view having a right side inclined on an upper portion of a rectangular frame, and an opening on the right side.
A wire mesh is attached to the front, rear and left side surfaces, and the bottom surface is formed in a lattice orthogonal to the trapezoidal frame 1. Then, in order to reduce the interruption of the excavation work and increase the harvesting efficiency, the internal volume is set to 9.
5 cubic meters.

Numeral 127 denotes a tank tilting bracket, the lower surface of which is fixed to the left side of the front half of the bogie frame 1 in a front view, and the lower bottom of the front surface of the tank 11 is supported by a tilting center shaft 129. 9 is also a tank tilt bracket, which is formed in the same shape as the tank tilt bracket 127, and supports the lower bottom portion of the rear surface of the tank 11 with a tilt center shaft 129. The tank tilting brackets 127 and 128 are fixed to the upper surface of the bogie frame 1 so as to oppose each other in the front and rear direction with a space between the two tanks 11 and 128 (see FIG. 9).

In FIG. 10, reference numeral 130 denotes a bracket which is fixed downwardly to the front of the tank 11 and to the lower right side of the lower bottom thereof in a front view. Reference numeral 131 denotes a tank tilting frame, which has its lower end fixed to the outer surface of the front and rear brackets 130, respectively, and obliquely to the left in front view via a gap capable of accommodating the front and rear surfaces of the tank 11 and the side wall of the discharge elevator 12. It rises, extends horizontally to the left at the tank middle, and is provided with a suitable gap from the left side of the tank. Reference numeral 132 denotes a bracket, one of which projects forward and backward on the right side surface of the bogie frame 1 below the tank tilting frame 131. 1
A single-acting hydraulic cylinder 33 has a lower end pivotally connected 134 to a bracket 132 and an upper end of a piston 135 to the left obliquely rising portion of the tank tilting frame 131 to be in front of and behind the tank 11. They are arranged one by one. When the piston of the single-acting hydraulic cylinder 133 is retracted most, the tank 11 becomes horizontal.
Rises on the right side in front view around the tilting center axis 129 (FIG. 1).
3).

Reference numeral 136 denotes a double-acting hydraulic cylinder for raising and lowering the discharge elevator 12. The base end is pivotally connected 138 to the upper surface of the middle part of the tank tilting frame 131, and the piston terminal is connected to the middle of the discharge elevator lower frame 140 at the middle. 137 pivoted outside
Then, they are arranged in front of and behind the tank 11, respectively. Then, as shown in FIG. 13, when the piston of the double-acting hydraulic cylinder 136 is extended, the discharge elevator 12 falls to the right in front view. Exhaust elevator 12
Is provided on both sides an L-shaped frame in which the base end of the discharge elevator lower frame 140 is fixed to the lower end of the discharge elevator vertical frame 139, and the upper end of the discharge elevator vertical frame 139 and the terminal of the discharge elevator lower frame 140 are connected. Pipe frame 12A between
Is fixed.

The pipe frame 12A rises vertically from the end of the lower frame 140 of the discharge elevator, and forms an upper side that rises obliquely from the rising portion to the vertical frame 139 of the discharge elevator. The discharge elevator 12 is provided with a wire mesh on both sides and a horizontal bottom surface provided with a grid parallel to the lower frame 140 between the front and rear discharge elevator lower frames 140 (see FIG. 1). It fits in the gap between the tank tilting frame 131 and both side surfaces of the tank 11. 141 is a bracket, which is a tank 1
In front of 1, the lower bottom frame of the rear is projected to the right in front view.
An ejection elevator lower frame 140, whose inner surface is slidably abutted against the outer surface of the bracket 141, is connected to the bracket 141 via an ejection elevator tilting center shaft 142, and the ejection elevator 12 is raised around the ejection elevator tilting center shaft 142. It is provided freely.

Reference numeral 143 denotes a floor conveyor, which is a tank 1
1 and the lower part of the discharge elevator 12.
That is, the floor conveyor drive chain gear 14 disposed on a shaft laid on the inside of the distal end of the discharge elevator lower frame 140.
6, 146 and a floor-conveyor driven chain gear 14 disposed on a shaft horizontally laid on the lower left inside of the tank 11 at the left end in front view.
8, 148. Floor conveyor 14
In FIG. 3, a transport bar 149 having an L-shaped cross section is laid at predetermined intervals on a chain provided in front and rear in parallel (see FIG. 1). 1
Reference numeral 44 denotes a hydraulic motor provided at a terminal portion of the front discharge elevator lower frame 140. A chain gear (not shown) fixed to the output shaft of the hydraulic motor 146 and the lower conveyor driving chain gear 1
A chain 147 wound around 46 rotates the floor conveyor 143 so that the upper surface runs rightward when viewed from the front. To transfer the beats stored in the tank 11 to the truck, as shown in FIG. 13, the tank 11 is tilted upward to the right as viewed from the front, the discharge elevator 12 is tilted to the right, and the beats are removed from the tank 11 by the floor conveyor 143. Transship to a Tolkok packing box.

Next, with reference to FIG. 11, which is a schematic rear view of the two-row beet harvester of the present invention, the rectangular lifting device 8 will be described. 1
Reference numeral 50 denotes a lifting conveyor frame, which has a front and rear frame that is substantially square and is spaced apart by about 80 cm in front and rear. The elevating conveyor frame 150 has the front frame fixed to the L-shaped brackets 1A and 1B fixed to the left and right of the rear end of the bogie frame 1 (FIG. 8).
), And stand vertically with an appropriate gap from the ground surface.
Further, the lifting conveyor frame 150 has a lower end portion on the left side as an inclined portion which rises obliquely from the inside and an introduction portion which gradually lifts the beat vertically. 151 and 152 are horizontal columns,
Reference numerals 153 and 154 denote braces, which reinforce the elevating conveyor frame 150.

Forward feed conveyor support beams 155 and 156 are erected at substantially the center of the horizontal girder 151 so as to oppose each other. The start end of the forward feed conveyor 10 is supported inside the support girder, and a beat drop prevention plate 159 is fixed on the rear surface. Has been established. A beat fall prevention plate 157 is fixed to the upper left half of the front and rear conveyor frames 150, and a beat fall prevention plate 158 is also provided at the lower left side.
Is fixed. The outer rolling wheel 160 and the inner rolling wheel 161 are arranged at an appropriate pitch on the front and rear elevating conveyor frames 150, and the corner turning wheel 162 is pivotally supported on the upper right side. The axial support of the corner turning wheel 162 can be adjusted to the left and right as a tension roller of the lifting conveyor 163. The lifting conveyor 163 is slat-shaped, and
Between the inner side and the outer side of the inner rolling wheel 161 and on the upper surface of the corner turning wheel 162, and the lifting conveyor frame 15
It is provided so as to be freely rotatable inside 0.

Reference numeral 164 denotes a beat holding arm having a wire diameter of 4 mm.
Is bent into a hairpin shape, and the tip portion is inclined forward from the middle portion in the circumferential direction of the elevating conveyor 163. The beat holding arm 164 is protruded inward at a height of about 22 cm in a direction perpendicular to the rotating direction of the elevating conveyor 163, and has a pitch of about 30 cm.
1 cm around the entire circumference of the lifting conveyor 163 (FIG. 1).
2). Then, the beat holding arm 164 holds the beat falling from the backward conveyor 9 to the elevating conveyor 163 at the forward inclined portion at the tip and raises the beat.

Reference numeral 165 denotes an inwardly moving elevating conveyor, which is provided so that the beat raised by the beat holding arm 164 does not fall into the elevating conveyor frame 150. That is, the rising portion parallel to the vertical rising portion of the lifting conveyor 163 is opposed to the tip of the beat holding arm 164 via a slight gap, and then turned rightward. It is facing the upper left side. The inner conveyor 165 is the same width as the elevator 163,
At the same speed. In the drawing, reference numeral 166 denotes an inwardly moving conveyor drive tooth wheel, 167 denotes an upper turning wheel, 168 denotes a lower turning wheel, and 169 denotes a tension wheel. As is clear from the above description, since the rectangular lifting device 8 is configured to circulate the lifting conveyor 163 in a substantially rectangular shape, the horizontal width does not increase even if the height is increased.

Reference numeral 170 denotes a sorting roller that rotates forward and downward, and is slanted on the upper surface of the post-feeding conveyor 9 in order to drop a beat that is fed back by the post-feeding conveyor 9 onto the lifting conveyor 163. Referring also to FIG. 14, the bearing bar 173 that supports the left side of the sorting roller 170 is pulled down by a coil spring 172 attached to the elevating conveyor frame 150, and the sorting roller 170 is elastically contacted with the upper surface of the backward conveyor 9. I have. The right end of the sorting roller 170 is connected to a drive mechanism via a universal joint. When the beet conveyed by the post-conveyor 9 is mixed with foliage, the sorting roller 170
Engulfs and passes the foliage, and drops from the terminal of the post-feeding conveyor 9 to the ground. 171 is a beat scattering prevention plate, one end of which is attached to the bearing bar 173, and
It is inclined above 70.

In the single-acting and double-acting hydraulic cylinders described above, hydraulic pressure is supplied by a hydraulic hose from a hydraulic pump provided in the towing tractor, and the control is performed by a tractor operator.

[0064]

As described above, the front left foliage cleaner and the front right foliage cleaner rotating outward and outward on the two ridges to be dug are provided below the front end of the bogie frame via the sub-frame. Move the foliage on the ridge to take out,
It is possible to reduce the number of foliage mixed with the beet to be excavated.
In addition, swing bars and swing spring lines facing the rear end of the lower conveyor are alternately arranged across the bogie frame, and are horizontally horizontally rotated below and in front of the swing bars and swing spring lines. The foliage retraction roller is provided with a foliage separation device, so while the excavated beet and foliage are temporarily dammed with a rocking bar and a rocking spring line, the foliage retraction roller can pull in the foliage and drop it to the ground. it can.

Further, a side foliage cleaner is provided diagonally forward and rightward through a sub-frame in the middle part of the bogie frame, and then, of the two ridges to be dug out, the foliage on the left ridge is exposed to the left to expose the head of the beat. Since the foliage on the right side of the two ridges is slightly moved to the right, the foliage treatment of the two ridges to be dug next while excavating can be made suitable for the next excavation. That is, at the time of excavation, the foliage moved to the left on the left ridge among the two ridges is further moved to the left by the front left foliage cleaner, and the foliage slightly moved to the right on the right ridge of the two ridges is moved forward. The right foliage cleaner is moved further to the right side, so that foliage mixed with the excavated beet can be minimized. In other words, by providing left and right forward foliage cleaners and side foliage cleaners on the right side in the traveling direction, it is difficult to excavate two ridges. Can be.

By providing the wheels arranged in series before and after traveling in the furrow on the left and right of the rear half of the bogie frame,
Even if the capacity of the tank with the discharge device is increased in response to simultaneous ridge harvesting, settlement in the field can be prevented with the front and rear double wheels. In addition, one of the wheels is turned by a double-acting hydraulic cylinder so that the wheels arranged in series in front and rear can make a small turn, and the turning is transmitted to the other wheel at the same angle via a connecting rod, so Can be. Therefore, the two-row beet harvester of the present invention can have a high harvesting efficiency.

A rectangular lifting device vertically erected at the rear end of the bogie frame has a substantially square lifting / lowering conveyor frame with the front end of the forward conveyor mounted at the upper center and the rear half of the rear conveyor inserted at the lower center. The lifting conveyor is rotatably disposed along the lifting conveyor frame, and furthermore, a beat holding arm orthogonal to the conveyor rotation direction is protrudingly provided at a predetermined interval on the lifting conveyor so as to face the vertical lifting portion of the lifting conveyor. Providing the vertical ascending section and providing the inwardly moving elevating conveyor that turns to the right, further turns downward, and rotates, ensures that the harvested beet can be lifted. And by making it a square lifting device,
Since the height can be increased without changing the width,
Even if the height of the tank with the discharge device is increased with the ridge harvest, the height can be increased without increasing the width of the rectangular lifting device. Therefore, it is possible to prevent a decrease in the circulating performance of the two-row beet harvester due to an increase in the machine width.

[Brief description of the drawings]

FIG. 1 is a right side view of the two-row beet harvester of the present invention, partially cut away.

FIG. 2 is an enlarged right side view of a main part of the above.

FIG. 3 is an enlarged right side view of a part of FIG. 2;

FIG. 4 is a perspective view of one component in FIG. 2;

FIG. 5 is an enlarged sectional view taken along line AA of FIG. 4;

FIG. 6 is a perspective view of a main part of FIG. 3;

FIG. 7 is an exploded perspective view of a part in FIG. 6;

FIG. 8 is a partially cutaway plan view of the two-row beet harvester of the present invention.

FIG. 9 is a left side view of the same.

FIG. 10 is a front view of the two-row beet harvester of the present invention also showing the underground beet and the surface foliage.

FIG. 11 is a schematic rear view of the two-row beet harvester of the present invention.

FIG. 12 is a perspective view of the upper and lower parts.

FIG. 13 is a schematic front view in which a tank with a discharge device is tilted.

FIG. 14 is a schematic right side view for explaining the operation of the foliage separating apparatus.

FIG. 15 is a schematic plan view for explaining an operation during excavation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bogie frame 2 Wheel 2A Axle 2B Wheel connection bar 2C U-shaped bracket 2F Connecting rod 2G Double-acting hydraulic cylinder 3 Hitch body 4 Lower conveyor 5 Upper conveyor 6 Left digging blade 7 Right digging blade 8 Square lifting device 9 Post feed Conveyor 10 Forward feed conveyor 11 Tank with discharge device 12 Discharge elevator 13 Foliage separation device 14 Lower conveyor frame 15 Subframe 16 Front left foliage cleaner 17 Front right foliage cleaner 22 Single-acting hydraulic cylinder 31 Double-acting hydraulic cylinder 35 Side foliage Cleaner 38 Central rubber beater 39 Left rubber beater 40 Right rubber beater 43 Lower conveyor drive chain gear 47 Upper conveyor drive chain gear 54 Inverted U-shaped frame 58 Straight shaft 64 Oscillating spring wire mounting shaft 66 Oscillating spring wire mounting piece 70 Oscillating spring wire 71 Oscillating spring wire detachable piece 73 Oscillating bar DESCRIPTION OF SYMBOLS 1 Left swing bearing plate 83 Swing center axis 97 Right swing bearing plate 99 Foliage retraction roller 110 Square pipe 111 Rectangular rubber plate 112 Backing plate 113 Set screw 128 Tank tilt bracket 129 Tilt center shaft 133 Single-acting hydraulic cylinder 136 Double-acting hydraulic cylinder 142 Discharge elevator tilting center axis 143 Floor conveyor 144 Hydraulic motor 150 Elevating conveyor frame 163 Elevating conveyor 164 Beat holding arm 165 Inner rotation elevating conveyor

Claims (5)

[Claims] 1. A bogie frame to be pulled by a tractor, a lower conveyor for excavating two ridges having a lower front end and a higher rear end below a front half of the bogie frame, and a lower conveyor disposed above the lower conveyor. The upper conveyor, the rear end portion is fixed to both sides of the intermediate portion of the lower conveyor frame and is projected forward, and a sub-frame is provided to be movable up and down via hydraulic pressure, and the outward rotation provided at the front end of the sub-frame. , A front foliage cleaner and a front right foliage cleaner, a lateral foliage cleaner protruding diagonally forward from the right middle part of the subframe and facing two ridges to be dug, and crossing the middle part of the bogie frame. Then, the swinging bar and the swinging spring line, which are alternately arranged at predetermined intervals, face the rear end of the lower conveyor, and are horizontally laid horizontally in front of and below the swinging bar and the swinging spring line. With foliage retraction roller A foliage separating device comprising: a rectangular lifting device vertically provided at a rear end of the bogie frame; and a rear half provided below a rear end of the lower conveyor, and a rear half inserted into a lower half of the rectangular lifting device. A post-feeding conveyor, a tank with a discharge device which can be tilted laterally and is mounted on a bogie frame in front of the foliage separation device, and a terminal protruding forward from the upper center of the rectangular lifting device and having a terminal portion with the discharge device. A two-row beet harvester, comprising a forward conveyor facing the upper part of the tank. 2. The swing bar and the swing spring line of the foliage separating device form a concavely curved projection below, and the swing bar has a weight movably attached to the upper rear projection. 2. The 2-row beet harvester according to 1. 3. The two-row beet harvester according to claim 1, wherein said foliage pull-in roller has a rectangular rubber plate attached along each of four longitudinal surfaces of a rectangular pipe. 4. The square lifting device, wherein a substantially rectangular lifting conveyor frame is provided at the front and rear, a front side is vertically fixed to a rear end portion of a bogie frame, and a slat-shaped lifting conveyor is provided inside the lifting conveyor frame. Along with the clockwise rotation in the rear view, a plurality of beat holding arms are erected at predetermined intervals perpendicular to the rotation direction of the elevating conveyor, and the leading end of the forward conveyor is located at the upper center of the elevating conveyor frame. The part is mounted horizontally, rises facing the vertical rising part of the lifting conveyor via the tip of the beat holding arm and a small gap, turns right at the upper part and faces the upper left side of the forward conveyor, 2. The two-row beet harvester according to claim 1, further comprising an inwardly moving elevating conveyor having the same width as the elevating conveyor that is turned downward. 5. A bogie frame has wheel connecting bars fixed along the traveling direction to both ends of an axle crossing the rear half portion, and the front and rear ends of the wheel connecting bar are respectively rotated around a vertical axis. The U-shaped bracket is freely pivoted, and the wheels attached to the outside of the U-shaped bracket are arranged on the one running in the front and rear in a row between the ridges. The wheel is connected to an intermediate portion of the front and rear U-shaped brackets. Pivot both ends of the connecting rod in parallel with the bar,
The double-row beet harvester according to claim 1, wherein a double-acting hydraulic cylinder having one end pivotally connected to an intermediate portion of the wheel connecting bar and the other end pivotally connected to one of the U-shaped brackets is provided.