JP2883801B2 - Drive structure of foliage processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foliage scraping device and a foliage for scraping and transporting foliage in a foliage processing machine for keeping roots of a subterranean stem crop such as potatoes in the soil and extracting only foliage. The present invention relates to a drive structure of a transfer device.

[0002]

2. Description of the Related Art A foliage processing machine that leaves the root of a rhizome crop in the soil and pulls out only the foliage is disclosed in, for example,
There is one disclosed in Japanese Patent Application Laid-Open No. 4-063312. In such a foliage processing machine, the pulling out of the foliage portion is provided with two transport belts that rotate in a plane within the inclined plane that falls backward, and the pulling-out is carried out by sandwiching and pulling out the opposite portion of the transport belt. I am taking. In order to efficiently carry out the drawing and the conveyance, the conveyance belt extends from the front (lower) to the rear (upper) of the body.

[0003]

For this reason, the drive shaft for driving the transport belt is provided in the middle of the transport belt which can be easily connected from a transmission or the like. When the drive shaft is arranged in such a manner, the transport belt in a portion above the drive shaft is driven by a pressing force, and a good transport force cannot be exhibited. Therefore, as seen in the above-mentioned prior example, the driving force has to be generated by making the conveyor belt with a protrusion or the like, but according to such a conveyor belt, the pressing force becomes too strong and the foliage is increased. The part may be crushed and shredded, resulting in an inability to transport. Further, it is necessary to use a complicated and expensive transport belt itself.

Further, it is preferable that the extracted foliage is discharged laterally in the traveling direction after the transportation so that the foliage does not become an obstacle when collecting the roots later. For this reason, the end of the transport belt can be swung right and left. However, with such a structure, the support shaft at the upper end of the transport belt cannot usually be used as a drive shaft. The present invention solves such a problem, that is, even if the end of the conveyor belt can be swung, the conveyor belt can be driven by a tensile force over the entire length. is there.

[0005]

SUMMARY OF THE INVENTION Under the above-mentioned problems, the present invention relates to a stem which causes foliage of a rhizome crop planted in a ridge.
Leaf raising and separating device and foliage raking device for raking foliage
And a root indwelling device that keeps the root of the rhizome crop in the ridge
And a foliage transport device that clamps the foliage and transports it upward afterwards
In the foliage processing machine having
Leaves the transport device, which the conveyor a pair of left and right projections with belt belt plane rotation in the inclined plane collapse rear equipped from the front in this order together, of which the conveyor belt is conveying belt driving force driven to convey the transmission shaft provided in the middle on the upper end of the drive shaft, with projections belt, it provides a driving structure for foliar treatment machine, characterized in that to drive the driven shaft of the conveyor belt bottom as the drive shaft It was done.

[0006]

[Action] By taking the above measures, the transport belt
Although the drive source is taken from the middle transmission shaft, it is transmitted to the upper drive shaft once and driven by this, so that the transport belt can be driven by the pulling force over the entire length. Further, in this case, even if the conveyor belt is swung around the transmission shaft, the drive system thereof is not obstructed.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 6 is a side view of the foliage processing machine, FIG.
FIG. 8 is a perspective view. This foliage processing machine includes a self-propelled body 12 having wheels 10, a foliage raising and separating device 14 from the front, a foliage scraping device 16, a root indwelling device 18, The foliage transport device 20 and the foliage collection / discharge device 22 are sequentially provided.

[0008] The foliage raising and separating device 14 is provided on both sides of the front of the body 12 to cause the foliage to be pulled out and to separate it from the adjacent foliage that is not so. The divider 24 and the side divider 26 are provided. Consists of The divider 24 has a rod-like shape standing upright and obliquely rearward, and has a sled-like base 28 at the rear. At the center of the base 28, there is also a mounting rod 3 which is also erected obliquely rearward and upward.
The mounting rod 30 is inserted and fixed to a mounting pipe 32 provided obliquely downward at the front of the body 12 so as to be position-adjustable (expandable / contractible).

Each of the side dividers 26 is formed in a substantially L-shape by inserting a rod-shaped front component 34 and a rear component 36, and the front component 34 is attached to the base 28,
The rear components 36 are rotatably supported by the mounting tubes 32, respectively. In this case, the front component 34 and the rear component 3
The axes of the support portions 6 are substantially in a straight line, and each can be smoothly rotated. Side divider 26
When is rotated outward, the adjacent foliage that is not pulled out is greatly pushed outward, so that the foliage is less entangled. On the other hand, in the case of traveling on a road or the like, it may be rotated upward so as not to be in the way.

Since the rhizome crops are usually planted in the form of ridges, it is necessary to change the height of the divider 24 depending on the height of the ridges, the growth state of the rhizome crops, and the like. This operation is performed by extending and retracting the mounting rod 30 of the base 28 with respect to the mounting tube 32. When this operation is performed, the front component 34 also moves to the rear component 36.
The two operations can be performed simultaneously. In addition, the side divider 26
Is determined by the height of the rear component 36, which is the final pushing position, but the divider 24
Even when the front component 34 is expanded and contracted when adjusting up and down,
Since the position of the rear component 36 does not change, a stable separating action is obtained.

The foliage scraping device 16 scrapes the foliage to be pulled out and sends it to the succeeding foliage transporting device 20. The left and right pair of left and right which are opened narrowly and flattened after opening forward in the inclined plane of backward fall. And a belt 38 with a projection. In this case, the projections 38a at the start end of the facing portion do not intersect, but are arranged to intersect at the end.
This rubs the foliage.

The root indwelling device 18 retains the root of a rhizome crop in a ridge. A pair of left and right gauge wheels 40 rolling around the top of the ridge, and two left and right gauge wheels extending before and after the foliage are inserted. And a root dropper 42 made of a book stick. The root is retained in the soil by the pressing force of the gauge foil 40, and only the foliage is pulled out. At this time, the foliage is lifted upward through the space between the root droppers 42. Even if the root portion comes up with the root portion, the root portion is greatly removed by the root dropping tool 42.

The foliage transporting device 20 includes a foliage scraping device 1
The foliage scraped in 6 is lifted upward through the space between the root dropper 42, and is conveyed to the subsequent foliage collecting and discharging device 22 while pinching the same. It is composed of a pair of left and right transport belts 44 that are moved. FIG. 2 is a plan view of the transport belt 44,
The transport belt 44 has a drive pulley 52 and a driven pulley 54 attached to the upper and lower ends of an upper arm 48 and a lower arm 50 that can rotate around a central transmission shaft 46, respectively, between the drive pulley 52 and the driven pulley 54. A transport belt 44 is attached to the belt.

The upper arm 48 can be rotated left and right about the transmission shaft 46. The reason why the end of the conveyor belt 44 can be swung right and left in this way is to discharge the extracted foliage to the outside of the ridge, thereby facilitating post-work such as collecting the root. FIG. 4 is a plan view of a main part showing a configuration of swinging the transport belt 44. A housing 56 supporting a transmission shaft 46 is rotatable, and an upper arm 48 is connected to the housing 56. Then, a lever 58 is attached to the housing 56, and the lever 58 is rotated to be inserted and positioned in three positioning holes 60 formed on the body 12 at a left rotation position, a neutral position, and a right rotation position. (62 is Stobba).

On the other hand, an arm 64 protrudes from the housing 56, and a circular urging spring 70 is stretched between the arm 64 and the fixing pin 68. When the upper arm 48 comes to the left rotation position and the right rotation position, both of the biasing springs 70 exceed the dead center.
This is for biasing each position.

Further, the two upper arms 48 are pulled by a spring 72, and the left and right rotation of the upper arm 48 is configured to move only one of the upper arms 48 so that the other is interlocked. The spring 72 is connected to the conveyor belt 4.
In addition to pressing the opposing portion of No. 4, the transport belt 44 is allowed to separate, and also serves to pass foreign matter and the like. In addition, the lower arm 50 is also pulled by the spring 74 to the side that presses each other (see FIG. 1). Therefore, the separation of the transport belt 44 on this side is also allowed.

The opposing portions of the conveyor belt 44 are pressed against each other by various idle rollers or the like. First, on the lower arm 50 side, two fixed idle rollers 76 are provided on one side, and two idle rollers 80 repelled by a spring 78 are provided on the other side.

FIG. 3 is a plan view of an essential part showing an idle roller provided near the central transmission shaft 46.
And an idle roller 84 and a small roller 86 attached to both ends thereof.
4 are pressed against each other, and the transport belt 44 is stretched by small rollers 86. The arm 82 is connected to the spring 8
At 8, the idle roller 84 is urged in a direction to press the conveyor belt 44, and when foreign matter or the like is caught, moves to the non-pressing side to permit the passage (90 is a stop bar, respectively).

Further, a spring 9 is provided on the upper arm 48 side.
Each of the idle rollers 94 is provided one by one and presses the opposing portion of the transport belt 44 toward the other side. In addition, a tension roller 96 that stretches the transport belt 44 from the inside and a run-out preventing roller 98 that is provided outside the transport belt 44 to prevent run-off are provided.

As described above, even if a foreign substance such as a stone is caught in the conveyor belt 44, the upper and lower arms 48 and 50 and the idle rollers 80 and 94 are retracted, and the idle roller 84 and the small roller 86 are also retracted. Eventually, the foreign matter is conveyed to the end of the conveyance belt 44 in a state of being pinched and discharged. FIG. 5 is a cross-sectional view of the conveyor belt 44. The conveyor belt 44 has a V-belt 44a and a flat belt 44 from the inside.
b, the sponges 44c are sequentially adhered, and the sponges 44c at the opposing portions are compressed to sandwich the foliage.

Next, the driving structure of the belt 38 with the projections and the conveyor belt 44 will be described. FIG. 1 is an explanatory view of this. First, a worm wheel 100 is attached to the lower part of one transmission shaft 46,
The motive power (see FIG. 6) is driven by the worm 106 guided by the universal joint 104. It is to be noted that another sprocket 108 is attached to the both transmission shafts 46 in the middle thereof, and a chain 110 is hung around this sprocket 108 so that one transmission shaft 4
The power transmitted to 6 is also transmitted to the other transmission shaft 46.

The two transmission shafts 46 protrude above the upper arm 48 to mount the sprocket 112, and the drive shaft 114 for firmly fitting the drive pulley 52 also extends upward to mount the sprocket 116.
Connect at 18. As a result, the power of the transmission 102 is transmitted from the transmission shaft 46 to the drive shaft 114 at the upper end, and the transport belt 44 is driven by a pulling force in the direction in which the facing portion rises and over the entire length. Also, when the upper arm 48 is rotated and swung right and left, this power system keeps its form, and there is no obstacle in driving the conveyor belt 44.

The driven pulley 54 of the transport belt 44 is fixedly fitted to the driven shaft 120, and the driven shaft 120 also extends upward, and this is used as a drive shaft of the belt 38 with projections. That is,
The protruding belt 38 also includes the driving pulley 122 and the driven pulley 1.
24 are provided and wrapped around them. By doing so, the belt 38 with protrusions is also driven in a direction to raise the facing portion.

The foliage collecting and discharging device 22 is for collecting a predetermined amount of foliage fed by the foliage transporting device 20 and discharging the same to the ground.
A pair of left and right collection shutters 126, which can be switched to three positions of standing, horizontal, and hanging, are attached to both sides of a central collection table 128. In addition, the rear end of the collecting stand 128 is bulged upward to prevent the foliage that has fallen here from sliding back and also serves as an engine cover.

If the collection shutter 126 on the side where the end of the conveyor belt 44 is swung to the left or right is kept in a horizontal position (the other side is in an upright position because it interferes with traveling), the conveyance belt 44 can be used. The foliage that has been transported falls onto it, and can be released to the ground by switching it to a hanging position when it is properly collected. The switching to the hanging posture is performed by either a manual operation using a lever or the like or an automatic operation by detecting a weight or the like.

[0026]

As described above, the present invention has been described above. That is, the present invention is designed to drive a pair of opposed conveyor belts by transmitting a driving force from a middle transmission shaft to a driving shaft at the upper end. Therefore, the structure is such that the opposing part of the conveyor belt is driven by its tensile force over the entire length, and the foliage is smoothly sandwiched between the foliage without using a complicated belt with protrusions. Can be transported.

Further, if the transmission of the driving force from the transmission shaft to the drive shaft is performed by a sprocket and a chain above the conveyor belt, a large space below the conveyor belt can be taken up, so that the collecting space increases and a lot of space is collected. A large amount of foliage can be collected. Further, since there is no obstacle to replacing sprockets and the like, it is possible to easily change the speed of the conveyor belt by changing them.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a drive system of a foliage scraping device and a foliage transfer device.

FIG. 2 is a plan view of a transport belt.

FIG. 3 is a plan view of a main part of the transport belt.

FIG. 4 is a plan view of a main part of the transport belt.

FIG. 5 is a sectional view of a transport belt.

FIG. 6 is a side view of the foliage processing machine.

FIG. 7 is a front view of a main part of the foliage processing machine.

FIG. 8 is a perspective view of a foliage processing machine.

[Explanation of symbols]

 Reference Signs List 16 foliage scraping device 20 foliage transporting device 38 belt with projection 44 transport belt 46 transmission shaft 52 drive shaft 54 driven shaft 118 chain

Claims (3)

(57) [Claims] 1. A method for pulling foliage of a rhizome crop planted on a ridge.
Raised stem and leaf pulling and separating device and stem to scrape foliage
Leaf scraping device and root to keep roots of rhizome crops in ridges
Part indwelling device, foliage to be conveyed upward after pinching the foliage
A foliage processing apparatus having a foliage conveying device;
The device and the foliage transport device are each equipped with a pair of left and right protruding belts and a transport belt that rotate in a plane in an inclined plane that falls backward in order from the front , and the transport belt has a driving force. The driving shaft is transmitted from the transmission shaft provided in the middle of the conveyor belt to the driving shaft at the upper end, and the belt with protrusions is
A drive structure for a foliage processing machine , wherein the drive shaft is driven using a driven shaft at a lower end of a conveyor belt as a drive shaft. 2. The drive structure of a foliage processing machine according to claim 1 , wherein the transmission shaft and the drive shaft of the conveyor belt are connected by a chain stretched over the conveyor belt. 3. The drive structure of a foliage processing machine according to claim 1, wherein the drive shaft of the conveyor belt can be swung right and left around the transmission shaft.