JP4531967B2 - Aligning and conveying device in leek harvesting machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a sandwiching and conveying belt for converting and discharging a green onion digging up from a farm field into a lateral position in a process of sandwiching and transporting in a vertical position in a self-propelled green onion harvester.
[0002]
[Prior art]
Conventionally, a self-propelled airframe equipped with a pair of left and right crawler devices has a digging blade at the tip from the front lower part of the airframe to the lower part of the airframe, toward the rear of the airframe. A digging / conveying conveyor device that conveys the root of the green onion dug up by a blade while placing it in a vertical position, and the digging / conveying conveyor device provided above, and excavated from the field A pair of nipping and conveying belts that are converted into a horizontal posture and discharged in the process of nipping and conveying the leaves and leaves of the green onion, and the leek that is provided below the terminal end of the nipping and conveying belt and discharged from the nipping and conveying belt A leek harvesting machine with a workbench for preparing the is known.
[0003]
[Problems to be solved by the invention]
In the pinch conveyor belt of the conventional leek harvester, the rotational axes of the drive pulley and the driven pulley that are wound and driven are parallel to each other. In the case where the belt is provided, there is a problem in that there is a difference in circumferential length in the width (up and down) direction of the belt, and the belt is not in close contact with the driven pulley and is easily detached from the driven pulley.
[0004]
Therefore, in order to solve the above-described problems, the present invention makes it difficult for the belt to be detached from the driven pulley by inclining the driven pulley in the front-rear direction with respect to the drive pulley in order to bring the holding and conveying belt into close contact with the driven pulley. It is an object of the present invention to provide an aligning and conveying apparatus in a scallion harvesting machine.
[0005]
[Means for Solving the Problems]
In order to achieve this object, the present invention has the following structure.
[0006]
A. A self-propelled aircraft equipped with a pair of left and right crawler devices has a digging blade at the tip, passing from the lower front of the aircraft through the lower central part of the aircraft, toward the rear of the aircraft. A digging / conveying conveyor device that conveys the root of the digging up onion in a vertical position and lifting it, and a digging / conveying conveyor device provided above the digging / conveying conveyor device, Prepare a pair of nipping and conveying belts that are converted into a horizontal posture and discharged in the process of nipping and transporting the foliage part in the vertical position, and a green onion discharged from the nipping and conveying belt provided below the terminal end of the nipping and conveying belt In a leek harvester equipped with a working table,
The holding and conveying belt is wound between a driving pulley and a driven pulley, and has a wide width with a sponge attached to the surface side. The driven pulley is inclined in the left-right direction with respect to the driving pulley, and the front-rear direction Is also inclined to ,
In the pair of driven pulleys, the inclination in the front-rear direction with respect to the drive pulley is directed in the opposite direction .
[0007]
B. The pair of drive pulleys are provided with a phase difference in the front-rear direction.
[0008]
[Action]
By adopting such a configuration, the alignment transport device in the leek harvesting machine of the present invention performs the following operations.
[0009]
I. A. above. With this configuration, the driven pulley is inclined in the left-right direction with respect to the drive pulley, and is also inclined in the front-rear direction, wound between the drive pulley and the driven pulley, and having a wide sandwich with a sponge on the surface side. The conveyor belt has no difference in circumferential length in the width (up and down) direction of the belt, the belt rotates in close contact with the driven pulley, and is not easily detached from the driven pulley. In addition, since the pair of driven pulleys are inclined in the front-rear direction with respect to the driving pulley in the opposite direction, the pair of nipping and conveying belts have the same circumferential length, and the feeding action is not displaced. A conveyance belt conveys a conveyed product (green onion) synchronously.
[0010]
II. B. above. With this configuration, since the pair of drive pulleys are provided with a phase difference in the front-rear direction, the foliage of the green onion can be easily sandwiched, and the sandwich and transport by the pair of sandwich and transport belts is reliably performed.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
6 to 8, reference numeral 1 denotes a leek harvesting machine, and the machine body 2 is equipped with crawlers 3 and 3 that are paired in a left-right manner and that enable spin (super-confidence) rotation. An engine 4 is mounted on one side and slightly rear side of the machine body 2, and a hydraulic device driven by the engine 4 is mounted in the vicinity thereof, although not shown. Between the crawlers 3 and 3, a transmission 5 is provided at a lower position near the rear part of the machine body 2 so that the crawlers 3 and 3 are driven to change speed.
[0012]
As shown in FIGS. 4 and 5, the crawlers 3 and 3 are configured to drive the crawler belt 3b by the drive wheels 3a at the rear part in the forward direction of the machine body 2 and press the crawler belt 3b to the grounding side. A rolling frame 3d that supports a plurality of grounding wheels 3c that are in rolling contact with each other is supported by a pair of front and rear link members 3e so as to be vertically movable with respect to the frame of the fuselage 2, and the rolling frame 3d and the fuselage 2 are An extendable cylinder mechanism 3f is provided between the frame and the cylinder mechanism 3f so that the ground contact portion of the crawler belt 3b can be moved up and down around the drive wheel 3a.
[0013]
It has a digging blade 6 at the tip from the lower front of the machine body 2 between the crawlers 3 and 3 to the rear of the machine body 2 through the center lower part of the machine body 2, and the digging blade is continuously connected to the digging blade 6. A digging / conveying conveyor device 8 having an endless bar conveyor 7 that conveys the root of the leek dug up by 6 while being placed in a vertical posture and lifted up is provided obliquely. Located above the digging / conveying conveyor device 8, the length is longer than the digging / conveying conveyor device 8, and the stalks and leaves of the green onion excavated from the field by the digging blade 6 are sandwiched in a vertical posture. A pair of left and right first nipping and conveying belts 9 are provided. On the lower side of the conveyance end portion of the first nipping and conveying belt 9, the green onion conveyed by the first nipping and conveying belt 9 is received, and the foliage portion is converted into the horizontal posture in the process of being nipped and conveyed in the vertical posture. A second nipping / conveying belt 10 for discharging is disposed.
[0014]
As shown in FIGS. 1 to 3, the second sandwiching and conveying belt 10 includes a wide belt 13 with a sponge with a sponge attached on the surface side, a drive pulley 11, and a predetermined left and right direction with respect to the drive pulley 11. It is wound between the driven pulley 12 inclined at an inclination angle of Further, the rotational axes of the driven pulleys 12 and 12 are provided so as to be inclined in the opposite directions by + θ degrees and −θ degrees in the front-rear direction with respect to the rotational axis of the drive pulley 11. Further, the pair of drive pulleys 11 and 11 are provided with an L phase difference in the front-rear direction. As shown in FIGS. 4 and 5, power is transmitted to the drive pulleys 11 and 11 from a drive pulley transmission mechanism 14 that is shifted by the transmission 5 and taken out.
[0015]
The rear end portion of the digging / conveying conveyor device 8 is pivotally supported with respect to the machine body 2 so as to be pivotable in the vertical direction via an axis, and is interposed between the digging / conveying conveyor device 8 and the machine body 2. The excavating / conveying conveyor device 8 is rotated up and down around the axis by the expansion and contraction operation of the mounted hydraulic cylinder 15. The front end portion of the first holding and conveying belt 9 is pivotally supported by the tip end portion of the link arm 16, and the rear end portion is pivotally supported by the machine body 2 via the link arm. When the base of the digging / conveying conveyor device 8 is rotated by the hydraulic cylinder 15 and the tip side is moved upward, the first sandwiching and conveying belt 9 is also moved rearward by the link arm 16 in conjunction with this. It has become. Further, an earthing rotor 17 for dropping the leek soil is disposed below the digging / conveying conveyor device 8, and the root of the leek root is cut behind the earthing rotor 17. A soil drum 18 for removing soil is provided.
[0016]
When the digging / conveying conveyor device 8 is rotated upward by the hydraulic cylinder 15, the first sandwiching and conveying belt 9 is moved backward by the link arm 16 in conjunction with this, and the digging / conveying conveyor device 8 is moved. And the first nipping and conveying belt 9 do not come into contact with each other. An elongated hole is provided between the distal end portion of the link arm 16 and the first holding / conveying belt 9, and the support height of the first holding / conveying belt 9 is adjusted by adjusting the support position of the link arm 16 with respect to the elongated hole. Is adjusted.
[0017]
The second sandwiching and transporting belt 10 sandwiches and conveys the stalks and leaves of the green onion at the starting end in a vertical posture, and in the transport process, the green onions are sequentially twisted from the vertical posture to the horizontal posture to form an oblique horizontal posture (almost substantially The posture is changed to 45 degrees, and the sheet is discharged from the conveyance end portion. A work table 19 is provided below the discharge position so that the operator can prepare the green onions discharged from the second nipping and conveying belt 10. A leaf portion conveyor belt that supports and conveys the leaf portion of the green onion nipped and conveyed by the first nipping and conveying belt 9 and the second nipping and conveying belt 10 on the upper side of the first end portion of the second nipping and conveying belt 10. 20 is provided coaxially with one of the driven pulleys 12 of the second holding and conveying belt 10. The posture of the leaf portion conveyance belt 20 can be adjusted by a rotation adjusting mechanism 20b around the support arm 20a.
[0018]
The work table 19 is formed of a plate-like body having a long rectangle in the length direction of the machine body 2, and is inclined so that the worker side is low and the opposite side is high. Further, the work table 19 can be rotated upward with the rear end side as a fulcrum, and a drive unit cover that covers the drive unit below the work table is connected to open and close the drive unit cover as the work table 19 is opened and closed. ing. In this workbench 19, the operator prepares, binds, or packs the green onions discharged from the terminal portion of the second holding and conveying belt 10 to work the bound or bag-packed green onions. An operation of storing in a container (not shown) placed at the terminal end of the table 19 or storing it on a storage table 21 detachably provided at the rear of the work table 19 is performed. The leek bundle prepared on the work table 19 is moved to the accommodation table 21 and placed thereon.
[0019]
On the side of the airframe 2 opposite to the engine 4, a control unit 22, a pilot step 23, a seat 24, a worker step 25, an auxiliary step 26, and the like are provided. Of these, the operator steps on the operator's step 25, and the operator sits on the seat 24 so that the operator sitting on the seat 24 can work, and the support arm 24a of the seat 24 is the operator (operator). Can turn freely so that it can go to the control unit 22 or to the work table 19. In addition, the seat of the seat 24 has a structure that can be tilted back and forth so that the operator (operator) can work while sitting or standing.
[0020]
A pair of left and right support arms 27, 27 project forward from the left and right frames of the digging / conveying conveyor device 8, and the inclined shoulders of the harvesting green onion at the tips of the support arms 27, 27. A pair of grounding wheels 28 and 28 that are in rolling contact with each other are pivotally supported so as to face each other. The wheels 28 and 28 also function as a heel following device that follows the vertical movement of the digging / conveying conveyor device 8 and the movement of the machine body along the length direction of the harvested onion hoe. The conveyance conveyor device 8 is supported so that it can be adjusted up and down by a vertical adjustment cylinder 29 and can be adjusted by a horizontal movement adjustment mechanism 28a. Further, the pair of wheels 28 and 28 have a camber angle, rotate in contact with the inclined shoulders of the harvested onion ridge, and steer and move the machine following the harvested onion ridge. ing. Between the wheel 28 and the tip of the digging / conveying conveyor device 8, a collapsible disk 30 for collapsing the shoulder of the harvesting basket is supported by the support arm 27, and the vertical / horizontal movement adjustment mechanism 30a adjusts the vertical / horizontal movement. It is provided as possible.
[0021]
The transmission 5 that receives power from the engine 4 and shifts is provided with a hydraulic continuously variable transmission (HST) that is continuously variable although not shown. In this way, the power transmission is connected and disconnected via the side clutch and the differential device, and the crawlers 3 and 3 are driven in a stepless and stepless manner, and spin turning (super turning) is enabled. . Further, the transmission 5 transmits the shifted power to each rotating portion, and the rotation speed thereof can be adjusted to be continuously variable or stepless. The speed change and the stepless or stepped traveling of the crawlers 3 and 3 can be performed. By combining, the excavation work speed can be set freely.
[0022]
Next, operation | movement of the leek harvesting machine 1 of the Example comprised as mentioned above is demonstrated. When the green onion harvester 1 harvests the green onion from the field, the crawlers 3 and 3 are positioned between the harvested green onion ridges, and the ground wheels 28 and 28 are brought into contact with the slanted shoulders of the green onion digging. -Adjust the excavation depth by adjusting the excavation depth of the excavating blade 6 part of the conveyor device 8 with the hydraulic cylinder 15, crush the crush with the disk 30 by advancing the machine body, and excavate the green onion from below with the clay. It digs up with the take-off blade 6, the root part is mounted on the bar conveyor 7, and it conveys toward the machine body diagonally upward, dropping the soil adhering to the rhizome part. Simultaneously with this conveyance, the foliage portion of the green onion is nipped by the first nipping conveyance belt 9 and conveyed without being damaged. When the crawlers 3 and 3 travel with a left-right inclination, the crawlers 3 and 3 are adjusted up and down to keep the aircraft in a horizontal state and travel.
[0023]
When the green onion conveyed in a vertical posture by the bar conveyor 7 and the first sandwiching and conveying belt 9 reaches the end portion of the bar conveyor 7, the earthing rotor 17 rolls into contact with the rhizome of the green onion to form the rhizome. The attached soil is dropped. As the green onions move further, the roots of the roots fall and are cut by the drum 18, and the remaining soil is further removed. Then, immediately before the green onions are discharged from the terminal end of the first holding / conveying belt 9, the foliage is held by the second holding / conveying belt 10 and transferred, and the leaves are conveyed by the leaf conveying belt 20. Thus, the second sandwiched and conveyed belt 10 is discharged on the work table 19 in a lateral posture at the end portion.
[0024]
The green onions discharged on the work table 19 are prepared or bundled by an operator standing on the operator's step 25 or an operator (operator) sitting on the seat 24 (or standing on the seat 24 position). Or bagged. Then, the bundles of bundled and bagged green onions are collected in a substantially predetermined amount, or are accommodated in a container and moved to the rear of the work table 19 to be moved to the accommodation table 21 and placed thereon. When performing maintenance of the drive unit on the lower side of the work table 19, if the work table 19 is opened by pivoting upward about a fulcrum, the drive unit cover is also opened and maintenance can be performed easily. When the work table 19 is closed, the drive unit cover is also closed at the same time.
[0025]
Here, the leek harvesting machine 1 has an appropriate moving speed according to the field condition and the crop condition by the stepless or stepped variable speed travel of the crawlers 3 and 3, and the stepless or stepped variable speed rotation of each rotating part. The rotation speed can be selected, the work accuracy is high, and the efficient harvesting work is performed. Further, the crawlers 3 and 3 are capable of spin turning (super turning), and the excavating / conveying conveyor device 8, the first nipping and conveying belt 9, the second nipping and conveying belt 10, and the leaf portion are provided by the hydraulic cylinder 15. The conveyor belt 20, the grounding wheel 28, the collapsible disc 30 and the like are rotated upward, the entire length of the machine body 2 is shortened, and the spin is stably rotated on the headland and moved to the next harvest basket in one turn. can do.
[0026]
Further, in front of the digging / conveying conveyor device 8, grounding wheels 28, 28 that follow the movement of the machine body along the length direction of the harvested green onion are provided, and the digging / conveying conveyor device 8 is vertically adjusted. Since it is supported by the cylinder 29 so that it can be adjusted up and down and by the left and right movement adjustment mechanism 28a, both wheels 28 automatically follow the onion to be harvested and automatically steer the machine to dig. -Automatic digging / conveying is performed by the conveying conveyor device 8, the first nipping and conveying belt 9, and the second nipping and conveying belt 10. Therefore, the operator can spend most of the time on the preparation, binding and bagging of the onions except for the airframe steering operation at the end of the harvested green onion.
[0027]
【The invention's effect】
As described above, according to the aligning and conveying apparatus in the leek harvesting machine of the present invention, the following effects can be obtained.
[0028]
I. The sandwiching and conveying belt is wound between the driving pulley and the driven pulley, and has a wide width with a sponge attached on the surface side. Since the belt is also inclined, there is no difference in the circumferential length in the width (up and down) direction of the belt, and the belt can be rotated in close contact with the driven pulley so that it is not easily detached from the driven pulley. Further, since the pair of driven pulleys are inclined in the front-rear direction with respect to the drive pulley in opposite directions, the pair of nipping and conveying belts have the same peripheral length, and there is no deviation in the feeding action. Both conveyance belts can convey a conveyed product (green onion) synchronously.
[0029]
II. Since the pair of drive pulleys are provided with a phase difference in the front-rear direction, the foliage of the green onions can be easily clamped, and the clamping and conveyance by the pair of conveyance belts can be performed reliably.
[Brief description of the drawings]
FIG. 1 is a perspective view of a nipping and conveying belt according to the present invention.
FIGS. 2A and 2B are explanatory views of a driving pulley and a driven pulley as viewed from the direction A in FIG.
FIG. 3 is a partial perspective view of the holding and conveying belt.
FIG. 4 is a side view of a transmission configuration of a crawler and a sandwich conveying belt.
FIGS. 5A and 5B are cross-sectional views of a transmission configuration of a crawler and a sandwich conveying belt.
FIG. 6 is an overall side view of a leek harvester according to the present invention.
FIG. 7 is an overall plan view of a leek harvester according to the present invention.
FIG. 8 is an overall rear view of a leek harvester according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Leek harvester 2 Machine body 3 Crawler 3a Drive wheel 3b Crawler belt 3c Grounding wheel 3d Rolling wheel frame 3e Link member 3f Cylinder mechanism 4 Engine 5 Transmission 6 Digging blade 7 Endless bar conveyor 8 Digging / conveying conveyor device 9 Nipping and conveying belt 10 Second clamping and conveying belt 11 Driving pulley 12 Driven pulley 13 Sponge belt 14 Driving pulley transmission mechanism 15 Hydraulic cylinder 16 Link arm 17 Landing rotor 18 Root cutting and earthing drum 19 Work table 20 Leaf Conveyor belt 21 Accommodating base 22 Control unit 23 Step 24 for operator Seat 24a Supporting arm 25 Step 26 for operator 26 Auxiliary step 27 Wheel support arm 28 Grounding wheel 28a Left and right movement adjustment mechanism 29 Vertical adjustment cylinder 30 Collapse disc 30a Up and down and left and right Movement adjustment mechanism

Claims (2)

A self-propelled aircraft equipped with a pair of left and right crawler devices has a digging blade at the tip, passing from the lower front of the aircraft through the lower central part of the aircraft, toward the rear of the aircraft. A digging / conveying conveyor device that conveys the roots of the digging up on the ground while placing it in a vertical posture, and a digging / conveying conveyor device provided above the digging / conveying conveyor device. Prepare a pair of nipping and conveying belts that are converted into a horizontal posture and discharged in the process of nipping and transporting the foliage part in the vertical position, and a green onion discharged from the nipping and conveying belt provided below the terminal end of the nipping and conveying belt In a leek harvester equipped with a working table,
The holding and conveying belt is wound between a driving pulley and a driven pulley, and has a wide width with a sponge attached to the surface side. The driven pulley is inclined in the left-right direction with respect to the driving pulley, and the front-rear direction Is also inclined to ,
The pair of driven pulleys are arranged and conveyed in a leek harvesting machine , wherein the inclination in the front-rear direction with respect to the drive pulley is directed in the opposite direction . 2. The aligning and conveying apparatus in a leek harvesting machine according to claim 1 , wherein the pair of drive pulleys are provided with a phase difference in the front-rear direction .

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