JP3669108B2 - Root crop harvesting aid - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a root vegetable harvesting auxiliary machine such as radish.
[0002]
[Prior art]
An example of a conventional root vegetable harvesting auxiliary machine will be described below by taking radish as an example of root vegetable. The conventional radish harvester manually pulls the radish from the cultivated land, places it on the conveyor belt of the root vegetable harvesting auxiliary machine, cuts off the foliage with a cutter while transporting on the conveyor, and manually loads only the root part into the storage basket. Run on the field.
[0003]
[Problems to be solved by the invention]
In the above-mentioned conventional root vegetable harvesting auxiliary machine, the cut foliage is not surely scraped off from the foliage conveyor, and the foliage may be clogged on the conveyor.
[0004]
[Means for Solving the Problems]
The above-described problem of the present invention is solved by the following configuration. That is, the conveyor 6 for conveying the root vegetables that were drawn in the field, the conveyor 6 in root crop auxiliary machine having a traveling device 1 provided on one side of the vehicle body 3, the conveyor 6, of root vegetables A main conveyor 6a that carries the root portion and conveys it, and a sub-conveyor 6b that carries and conveys the roots and leaves of the root vegetables, and a cutter 7 that cuts the stems and leaves of the root vegetables that are conveyed by the conveyer 6 is used as the sub-conveyor 6b. It is provided between the main conveyor 6a and the sub-conveyor 6b in the vicinity of the conveyance end portion, and the main conveyor 6a is located on the lower side in the conveyance direction than the cutter 7 so that the conveyance end portion is located on the lower side in the conveyance direction. This is a root vegetable harvesting auxiliary machine that is long on the lower side in the conveying direction .
[0005]
【The invention's effect】
Since the present invention is configured as described above, the cut foliage is surely scraped off from the foliage conveyor 6b, and the foliage is not clogged on the conveyer 6. Moreover, the foliage conveyor 6b can be shortened and it becomes low-cost. Moreover, since there is no conveyance conveyor 6b in the near side of the installation location of the cutter 7, the exchange becomes easy. The root vegetable harvesting auxiliary machine of the present invention can be applied to root vegetables such as radish and carrot.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. However, the present invention is not limited by the following examples.
FIG. 1 is a plan view of a radish harvesting auxiliary machine according to an embodiment of the present invention as viewed from above, FIG. 2 is a view of the radish harvesting auxiliary machine as viewed from the front, and FIG. 3 is an embodiment of the present invention. It is a figure which shows the side principal part of the support part of the conveyance conveyor of a form, FIG. 4 is the SS sectional view taken on the line of FIG. 1, FIG. 5 is the radish harvesting auxiliary machine of one embodiment of this invention. FIG. 6 is an enlarged perspective view of the conveyor portion, and FIG. 6 is a diagram showing a cutter using the driving force of the engine of the radish harvesting auxiliary machine according to one embodiment of the present invention and a driving force transmission mechanism of the conveyor. Shows the connection relationship between the root conveyor of the conveyor of the radish harvesting auxiliary machine of the embodiment of the present invention, the mechanism of driving the endless chain via the gear and pulley of the foliage conveyor, and the pulleys for driving the foliage cutter FIG.
[0007]
The radish harvesting auxiliary machine includes a crawler 1, a vehicle body 3 supported by the axle 2 of the crawler 1, and a conveyer that is supported by the vehicle body 3 and conveys the radish harvested by a hand extending to one side of the driver's seat 5. 6 is provided. And the radish placed on this conveyor 6 by hand is conveyed toward the vehicle body 3 side, but since a cutter 7 for cutting foliage is provided at a position adjacent to the driver's seat 5, the foliage is here. Cut and fall to the ground. The remaining root portion is temporarily stored in the transported cradle 8 and is manually stored in the storage basket 9 behind the driver's seat 5 from the cradle 8.
[0008]
Except for the time of harvesting radish, the conveyor 6 is fixed so that its longitudinal direction faces the front side of the traveling direction so as not to obstruct the movement of the harvesting auxiliary machine. As shown, a rotation shaft 10 for moving the direction of the conveyor 6 is provided on the vehicle body 3 so that the longitudinal direction of the vehicle body 3 can move in the side surface direction. And in order to fix the conveyance conveyor 6 in the state in which the longitudinal direction turned to the side surface of the vehicle body 3, it fixes to the vehicle body 3 near the rotating shaft 10 with the pin 11. FIG. The height of the conveyor 6 is a curved arm 13 (a pair of arms 13a and 6a) that supports the conveyor 6 (a pair of conveyors 6a and 6b) on both sides, as shown in another embodiment of the present invention in FIG. 13b) is adjusted by the cylinder 12 connecting the support member 14 and the rotary shaft 10.
[0009]
The conveyor 6 (a pair of conveyors 6a and 6b) is a pair of an endless chain 16 and an endless chain 17 (FIG. 5) each having a curved arm 13 (a pair of arms 13a and 13b) supported on both sides. 18 and 19 are engaged with sprockets 122, 123 and 119, 121 (see FIG. 6) supported on both ends of the bending arms 13a, 13b shown in FIG. 4, the endless chains 16 and 17 are guided by the guide member 15 on the upper side of the curved portions of the arms 13a and 13b.
[0010]
The essential portions of the sheets 21 and 22 are fixed to the chains 16 and 17 by rivets 24 and 25 so that the belt-like elastic sheets 21 and 22 wave on the chains 16 and 17. Since the radish is placed and conveyed in the valley portions of the undulating elastic sheets 21 and 22, the radish does not roll off on the conveyor 6.
[0011]
In addition, the pair of endless chains 16 are configured to be wide, and are arranged in parallel with a space therebetween. A wide belt-like elastic sheet 21 is attached to the endless chain 16, and the endless chain 17 is narrow. A belt-like elastic sheet 22 is attached. Since the conveyor belt 6 with the wide belt-like elastic sheet 21 is loaded with a radish root portion and the conveyor belt 6 with the narrow belt-like elastic sheet 22 is carried with a radish stem and leaf portion, the former is hereinafter referred to as the former. It is referred to as cat conveyors 6a or main conveyor 6a, called latter as foliage cutting conveyor 6b or sub conveyor 6b.
[0012]
Then, a portion positioned in the gap between the cat conveyer 6a and foliage cutting conveyor 6b, the cutter 7 is provided on the side surface of the curved arms 13a cat conveyors 6a. Cat conveyer 6a is formed on the elastic sheet 21 placed roots portion radish, but on the elastic sheet 22 of foliage cutting conveyor 6b is conveyed placed the foliage part of the radish, cutter 7 (rotating in the conveying Even if the foliage is cut by the blade), the root portion is conveyed to the cradle 8 in a stable state.
[0013]
FIG. 6 shows a main part of the drive mechanism. The driving force of the engine 100 is such that one end of the endless V-belt 103 is wound around an engine output pulley 102 that rotates together with the engine output shaft 101, and the other end of the endless V-belt 103 is static. It is wound around an HST pulley 107 fixed to an input shaft 106 of a hydraulic transmission (HST) 105, and an HST swash plate type variable displacement axial plunger pump 109 is driven. The amount of oil discharged to the constant displacement hydraulic motor 110 according to the amount of change in the inclination angle of a swash plate (not shown) provided in the pump 109 (the operation of changing the inclination angle with the HST lever in the driver's seat 5). change. Due to the change in the amount of oil discharged to the constant displacement hydraulic motor 110, the rotational speed of the rotating shaft (not shown) of the motor 110 changes, and the rotational speed of the input shaft (not shown) of the traveling device 111 also changes. Finally, the rotation speed of the crawler 1 changes, and the traveling speed of the harvesting auxiliary machine changes.
[0014]
When the HST lever (not shown) in the driver's seat 5 is in the neutral position, the oil is not fed toward the constant displacement hydraulic motor 110 and the crawler 1 does not rotate. When the HST lever is moved forward (or backward), a swash plate (not shown) provided in the pump 109 is inclined, and oil is fed to the constant displacement hydraulic motor 110.
[0015]
Further, a work machine pump 112 is provided at the shaft end of the HST input shaft 106 opposite to the HST pulley 107, and the pump 112 rotates at a constant rotational speed in synchronization with the rotational speed of the engine 100 so that it is always constant. The hydraulic fluid is supplied to the conveyor 6, the cutter 7 and the like while maintaining the pump discharge amount.
[0016]
Here, the hydraulic circuit of the HST 105 and the hydraulic circuits of the pump 112 and the motor 115 are independent of each other, and the oil tank of the HST 105 is not shown. The oil tank, pump 109, and motor 110 of the HST 105 are closed circuit and the oil circulates.
[0017]
The oil tank 135 feeds oil to the hydraulic circuit of the work machine pump 112 and the motor 115, and when the harvesting auxiliary machine travels on the road, the transport conveyor 6 and the cutter 7 are not driven. The oil only switches the valve 114 and returns to the oil tank 135. However, when the conveyor 6 or the cutter 7 is used, the valve 114 is switched, and the oil from the work machine pump 112 switches the valve 114 to the hydraulic pressure. The hydraulic motor 115 is sent to the motor 115 side, and drives the endless chains 16 and 17 of the conveyor 6 and the cutter 7 through a series of sprockets 116 to 123 and chains 130 to 133. The oil after these tasks is returned to tank 135.
[0018]
FIG. 7 shows a side view of a mechanism for driving the endless chains 16 and 17 of the root conveyor 6a and the foliage cutting conveyor 6b via the sprockets 116 to 122 and the chains 130 to 133 and a driving chain 134 for the foliage cutter 7. .
[0019]
The emergency stop switch 25 (FIG. 1), which is a feature of the embodiment of the present invention, is provided at a location relatively close to the cutter 7 on the side surface of the curved arm 13b (FIG. 3) of the foliage conveyor 6b. Since the emergency stop switch 25 is provided on the side surface of the curved arm 13b of the foliage conveyor 6b, if the operator's body or clothes accidentally touches the cutter 7 during work, the operator who is close to the cutter 7 The emergency stop switch 25 can be easily pushed, the engine 100 is stopped, the drive of the cutter 7 is stopped, and safety can be ensured.
[0020]
In addition, the root conveyor (main conveyor) 6a is made longer than the conveying distance of the foliage cutting conveyor (sub conveyor) 6b, and the leaf cutting cutter 7 is placed on the side of the curved arm 13a of the root conveyor 6a near the terminal end of the foliage cutting conveyor 6b. Provide. Thus, the cut foliage is surely scraped off from the foliage conveyor 6b, and the foliage is not clogged on the conveyor 6. Moreover, the foliage conveyor 6b can be shortened and it becomes low-cost. Moreover, since there is no conveyance conveyor 6b in the near side of the installation location of the cutter 7, the exchange becomes easy.
[0021]
FIG. 8 shows a plan view of a radish harvesting auxiliary machine having a configuration in which radish leaves are roughly cut using a cutter 26 before the radish is manually pulled out from the field.
During the harvest season, the leaves of the radish are quite widened, obstructing the extraction, and when the extraction is performed in the field, the leaves become soiled with water droplets. Therefore, before removing the radish from the field on the side of the conveyor conveyor 6 of the radish harvesting auxiliary machine opposite to the stalk-cutting conveyor 6b, the cutter 26 for roughly cutting the radish leaves and the spread fixed to the supporting portion of the cutter 26 One or more guides 28 for guiding the leaves are provided. Thus, if the leaves are shortened in advance before pulling them out, they can be easily grasped when the radish is extracted, and the shortened leaves can be bundled and the radishes can be easily placed on the conveyor 6, which improves the efficiency of the harvesting operation. I can plan.
[Brief description of the drawings]
FIG. 1 is a plan view of a radish harvesting auxiliary machine according to an embodiment of the present invention as viewed from above.
FIG. 2 is a view from the front of the radish harvesting auxiliary machine of FIG. 1;
FIG. 3 is a view showing a main part of a side surface of a support part of a conveyor of a radish harvesting auxiliary machine according to an embodiment of the present invention.
4 is a cross-sectional view taken along the line S-S in FIG. 1;
FIG. 5 is an enlarged perspective view of a conveyor portion of the radish harvesting auxiliary machine according to the embodiment of the present invention.
FIG. 6 is a diagram showing a driving force transmission mechanism for a cutter and a conveyor using the driving force of an engine of a radish harvesting auxiliary machine according to an embodiment of the present invention.
FIG. 7 shows a mechanism for driving an endless chain via a gear conveyor and a pulley of a root conveyor of a radish harvesting auxiliary machine according to an embodiment of the present invention, a foliage cutting conveyor, and pulleys for driving a foliage cutter. It is a side view which shows a connection relationship.
FIG. 8 is a plan view of a radish harvesting auxiliary machine according to an embodiment of the present invention.
[Explanation of symbols]
1 crawler 2 axle 3 body 5 driver's seat 6 conveyor 6a roots conveyor 6b foliage cutting conveyor 7 the arm 14 supporting member 15 guide member 15 16,17 endless chain 18, 19 cutter 9 accommodating basket 10 rotates shaft 11 the pin 12 cylinder 13 curved Plates 21 and 22 Strip elastic sheet 25 Emergency stop switch 26 Cutter 28 Guide 100 Engine 101 Engine output shaft 102 Engine output pulley 103 Endless V-belt 105 HST 106 HST input shaft 107 HST pulley 109 Swash plate type variable displacement axial plunger pump 110 Constant displacement hydraulic motor 111 Traveling device 112 Work machine pump 114 Valve 115 Hydraulic motor 116-123 Sprocket 130-133 Chain 135 Oil tank

Claims (1)

A conveyor for conveying the root vegetables that were drawn in the field (6), the travel device (1) and the root crop auxiliary machine having a provided on one side of the vehicle body (3) the transport conveyor (6),
The transport conveyor (6) includes a main conveyor (6a) for transporting the root part of the root vegetable and a sub-conveyor (6b) for transporting the root part of the root vegetable.
A cutter (7) that cuts the stems and leaves of the root vegetables transported by the transport conveyor (6) is disposed between the main conveyor (6a) and the sub-conveyor (6b) in the vicinity of the transport end portion of the sub-conveyor (6b). Provided,
The main conveyor (6a) is provided longer on the lower side in the conveying direction than the sub-conveyor (6b) so that the conveying terminal portion is located on the lower side in the conveying direction with respect to the cutter (7). A root crop harvesting aid.

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