JP2012135236A - Crop excavating harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crop excavating harvester configured to independently move a starting end and a terminal end of an excavating/conveying device in the vertical direction, and capable of setting an optimum posture of excavating crops and optimum distance of dropping of crops for working conditions at the same time.SOLUTION: The crop excavating harvester includes: travelling devices 12L and 12R which travel on a field; the excavating/conveying device 30 for excavating crops from the field and conveying the excavated crops rearward; a first lifting member 37 for moving a conveyance starting end side of the excavating/conveying device 30 in the vertical direction; and a setting member 69 for setting a storage member 70 for storing the crops discharged from a conveyance terminal end of the excavating/conveying device 30. In the crop excavating harvester, the conveyance terminal end side of the excavating/conveying device 30 can be freely moved in the vertical direction. The crop excavating harvester also includes a second lifting member 39 for moving the conveying terminal end side of the excavating/conveying device 30 in the vertical direction. The first lifting member 37 for moving the conveyance starting end side is disposed below a sorting/conveying device 30, and the second lifting member 39 for moving the conveyance terminal end side is disposed above the sorting/conveying device 30.

Description

  The present invention relates to a crop excavator for digging and harvesting a crop from a field.

As a conventional digging and harvesting machine, the conveyance start end side of the digging and conveying conveyor is moved up and down to determine the digging work height, the crop is dug from the field, and the dug crop is conveyed toward the rear of the machine body. Technology exists. (Patent Document 1)
Further, there is a technique in which crops are excavated and harvested from the field, transported toward the upper rear part of the machine body by a transport conveyor, and dropped from the terminal end of the transport conveyor to the collection section. (Patent Document 2)

JP-A-8-149913 JP 2000-125632 A

  However, in the digging and harvesting machine described in Patent Documents 1 and 2, the conveyance start end side of the digging conveyance conveyor can be moved up and down to be adjusted to the vertical position suitable for the working conditions. Since the vertical position changes in conjunction with the vertical movement of the digging and conveying conveyor, if the digging position is set low, the vertical position on the conveyance termination side of the digging and conveying conveyor will be high, and the crop will fall due to the impact when falling to the collection unit There is a problem that the commercial value of the crop is reduced.

  In addition, if the digging position is set high and the vertical position on the conveyance end side of the digging conveyor is lowered, the digging conveyor and the storage bag interfere with each other, and the vertical width of the digging conveyor is limited. There is a problem that the range is limited.

  In addition, the crops collected by the digging conveyor and the containment bag collide, and there is a problem that the crop is damaged due to the impact of contact and the product value drops, and it jumps out of the containment bag and falls outside the machine, and the operator falls There is a problem that the labor of workers is increased because the crops must be collected.

  And since dirt such as mud adhered to the dug up crops is transported without falling, it is difficult for workers to see the shape and size of the crops, whether there are any scratches or illnesses. There is a problem that the labor of the worker increases because it must be performed separately.

  In addition, the front end of the digging conveyor is equipped with a digging blade, but because it is a fixed blade, resistance tends to occur depending on the angle of entry into the soil, and the digging depth changes, causing crops to change. There is a problem that the digging of the burrs.

  The present invention seeks to solve the above problems.

  The invention according to claim 1 is provided with a traveling device (12L, 12R) that travels in the field, a digging and conveying device (30) that digs up the crop from the field and conveys it to the rear, and the digging and conveying device (30). A first elevating member (37) that moves up and down the conveyance start end side, and an installation member (69) that installs an accommodation member (70) that accommodates crops discharged from the conveyance termination portion of the digging conveyance device (30) In the crop digging and harvesting machine provided with a), a second elevating member configured such that the conveyance terminal side of the digging and conveying apparatus (30) is movable up and down and the conveyance terminal side of the digging and conveying apparatus (30) is moved up and down. A crop excavator and harvester characterized in that (39) is provided.

  According to a second aspect of the present invention, the sorting / conveying device (30) is provided with a rotating support shaft (19) at a rear end portion of a first digging / conveying frame (16) provided on the front side of the machine body. A relay rotator (18) is rotatably provided in (19), a driven rotator (17) is rotatably provided in a front end portion of the first digging transport frame (16), and the first digging transport frame ( 16) A second digging / conveying frame (23) is provided at the rear of the second digging / conveying frame (23), and the second digging / conveying frame (23) can be moved up and down around the rotation support shaft (19). A body (24) is provided, and a transmission endless belt (28) is wound around the drive rotating body (24), the driven rotating body (17), and the relay rotating body (18) in an endless manner. 30), a first elevating member (37) for moving the conveyance start end side up and down is provided above the sorting and conveying device (30). Was claim 1, wherein the crop photo harvester, characterized in that a second lifting member for vertically moving the terminating transmission (39).

  According to a third aspect of the present invention, a connection support member (14) for connecting the traveling devices (12L, 12R) is provided, and a receiving member (36) is provided at a lower portion of the digging and conveying device (30). The crop excavator and harvester according to claim 1 or 2, wherein the first elevating member (37) is provided on the member (14) and the receiving member (36).

  According to a fourth aspect of the present invention, a front support member (38f) is provided on an upper portion of the first digging / conveying frame (16), and a rear support member (38r) is provided on an upper portion of the second digging / conveying frame (23). The crop excavator and harvester according to claim 2 or 3, wherein the second elevating member (39) is provided on the front support member (38f) and the rear support member (38r).

  The invention according to claim 5 is provided with a plurality of conveying members (29) for conveying a crop to the transmission endless belt (28) at equal intervals, and the conveying member (29) in the winding region of the transmission endless belt (28). The crop excavator and harvester according to any one of claims 2 to 4, further comprising a vibration device (33) that vibrates in contact with the same.

  The invention according to claim 6 is characterized in that at least one vibration device (33) is provided on each of the first digging and conveying frame (16) side and the second digging and conveying frame (23) side. A crop excavator and harvester according to claim 5.

  According to the seventh aspect of the present invention, a digging member (20) that enters the soil is provided at the lower front end of the digging and conveying apparatus (30), and the digging member (20) is rocked. The crop excavator according to any one of claims 1 to 6, further comprising a swing mechanism (50).

  According to invention of Claim 1, the conveyance start end side of a digging conveyance apparatus (30) was comprised rotatably, and the angle of the conveyance start end side of the digging conveyance apparatus (30) which digs up a crop from a field is set. Since it can be changed, excavation work suitable for the growth state of the crop and the state of the field can be performed, so that it is prevented that the crop is dug up and the work efficiency is improved.

  In addition, when the weight of the rear part of the aircraft changes due to the change in the amount of crops stored in the storage member (70) installed in the installation member (69), and the balance of the aircraft is disturbed, the excavation conveyance device (30) The balance of the front and rear of the machine can be adjusted by moving the transport start end side up and down to adjust the balance, so that the crop digging position and running posture are not disturbed, improving crop digging efficiency. To do.

  And since the conveyance terminal side of the digging conveyance device (30) is configured to be rotatable, the distance between the conveyance terminal side of the digging conveyance (30) and the accommodating member (70) is accommodated in the accommodating member (70). Since it can be changed according to the amount of crops produced, the crops are prevented from being damaged by the impact of falling, and the commercial value of the crops is improved.

  Furthermore, since the conveyance start end side and the conveyance end side of the excavation conveyance member (30) are configured to be rotatable separately, the crop falling distance can be shortened while the crop excavation posture is appropriate, The product value of crops can be improved while improving efficiency.

  According to invention of Claim 2, in addition to the effect of invention of Claim 1, it is set as the structure which moves the conveyance start end side of a digging conveyance apparatus (30) up and down with a 1st raising / lowering member (37), and conveyance termination | terminus By adopting a configuration in which the side is moved up and down by the second elevating member (39), there is no need to form a complicated interlocking mechanism, and the vertical movement mechanism on the conveyance start end side and conveyance end side can be configured simply.

  Further, the first elevating member (37) is provided in the lower portion of the digging and conveying apparatus (30), and the second elevating member (39) is provided in the upper portion of the digging and conveying apparatus (30), whereby the first elevating member ( 37) and the second elevating member (39) can be expanded and contracted without interfering with each other, so that the working heights on the transport start end side and transport end side of the digging transport device (30) are suitable for the work conditions. Since the height can be set and the crop is appropriately excavated and stored in the storage member (70), the work efficiency is improved and the commercial value of the crop is improved.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the traveling device (12L, 12R) connecting support member (14) is provided below the digging and conveying device (30), Since the first elevating member is provided on the connection support member (14), the connection support member (14) is arranged at a position where it does not interfere even if the transfer start end side of the digging transfer device (30) is moved up and down. The downward movement range on the conveyance start end side of the digging and conveying apparatus (30) is secured, the digging depth of the crop can be adjusted to an appropriate depth that meets the working conditions, and the work efficiency is improved.

  Moreover, even if the weight of the accommodating member (70) becomes heavy and the center of gravity is biased toward the rear side of the machine body, the lower range on the conveyance start end side of the digging and conveying apparatus (30) is secured, so that the front-rear balance of the machine body is secured. Therefore, the excavation position and traveling posture of the crop are not disturbed, and the work efficiency is improved.

  According to the invention described in claim 4, in addition to the effect of the invention described in claim 2 or 3, the front support member (38f) provided on the upper side of the first digging transport frame (16) and the second digging transport frame. By providing the second elevating member (39) on the rear support member (38r) provided on the upper side of (23), even if the first elevating member (37) and the second elevating member (39) are operated at the same time, Since there is no interference, the time for adjusting the vertical positions on the conveyance start end side and conveyance end side of the digging conveyance device (30) can be shortened, and the work efficiency is improved.

  Moreover, since the second elevating member (39) is positioned above the crop conveyance surface, it is possible to prevent dirt such as mud removed from the crop from adhering to the second elevating member (39). Maintainability is improved.

  According to the invention of claim 5, in addition to the effect of the invention of any one of claims 2 to 4, a plurality of conveying members (29) for conveying the crop to the transmission endless belt (28), etc. By providing the interval, foreign matters such as mud peeled off from the crops being conveyed can be dropped from the interval portion of the conveying member (29), so that it is difficult for the impurities to remain on the conveying member (29) and cleaning. Effort and time are reduced, and maintainability is improved.

  In addition, by providing a vibration device (33) that contacts the conveying member (29) and applies vibrations in the winding area of the conveying endless belt (28), impurities such as mud adhered to the crop are surely dropped. Therefore, it becomes easier for the worker to visually check the size and shape of the crop, the presence or absence of a wound or a disease, and the sorting accuracy of the crop is improved.

  Furthermore, since the amount of contaminants entering the storage member (70) can be reduced, the amount of crops entering the storage member (70) increases, so the frequency of replacement of the storage member (70) is reduced, and the work efficiency is improved. To do.

  According to the invention described in claim 6, in addition to the effect of the invention described in claim 5, the vibration device (33) is provided on the first digging and conveying frame (16) side and the second digging and conveying frame (23) side. By providing at least one by one, even if dirt such as mud adhering to the crop cannot be dropped on the transport start end side of the excavation transport device (30), the vibration is further vibrated on the crop by the vibration end device (33) on the transport end side. Therefore, it becomes easier for the operator to visually check the size and shape of the crop, the presence or absence of scratches and diseases, and the crop selection accuracy is improved.

  Moreover, since the amount of foreign matter entering the housing member (70) can be reduced, the amount of crops entering the housing member (70) is increased, the replacement frequency of the housing member (70) is reduced, and the work efficiency is improved. To do.

  According to the invention of claim 7, in addition to the effect of the invention of any one of claims 1 to 6, a dug member that enters the lower part of the front end of the digging and conveying device (30) into the soil. Since (20) is provided, the digging and conveying device (30) can be brought close to the vegetation that is vegetated in the soil, so that the crop can be dug up reliably, so that the operator has to dig up the crop that was missed. The work efficiency is improved and the labor of the worker is reduced.

  Further, by providing the excavation swing mechanism (50) for swinging the excavation member (20), the crop is moved from the excavation blade (20) to the excavation conveyance device (30). Since dirt such as mud adhering to the crop can be dropped, the amount of contaminant moving to the excavation and transport device (30) is reduced, and the operator can easily see the state of the crop and the sorting accuracy is improved. At the same time, the amount of foreign matter entering the housing member (70) is reduced, so that the replacement frequency of the housing member (70) is reduced, and the work efficiency is improved.

  Furthermore, since the digging member (20) swings, the digging member (20) can enter the soil while unraveling the mud. The digging depth is prevented from changing, and the crop can be dug and harvested reliably.

Top view of crop digging harvester Side view of crop excavator (A) Main part plan view of the excavation conveyance part, (b) Main part side view of the excavation conveyance part (A) Enlarged plan view of the rocking device of the digging and conveying section, (b) Enlarged side view of the rocking device of the digging and conveying section. Enlarged side view of vibration device Partial side view of the excavation drive chain of another embodiment The side view which shows the accommodating part and work vehicle of another Example The top view of the accommodating part of another Example The side view which shows the accommodating part and work vehicle of another Example

Embodiments of the present invention will be described.
As shown in FIGS. 1-5, the taro harvester which is a kind of excavation harvester shown as one of the Examples is shown. This taro harvesting machine harvested a traveling unit A that travels across the field, a digging harvesting unit B that digs and harvests the taro to be harvested from the field, and a control unit C that operates the taro harvesting machine. It is comprised from the accommodating part D which accommodates a taro.

  In addition, the crop called taro is harvested in the state where countless pupae and grandchildren are generated around relatives to be seeds. However, depending on the type, some relatives may become commodities.

First, the traveling part A will be described.
As shown in FIGS. 1 and 2, an engine 2 that generates a driving force is provided at the front of a left aircraft frame 1 </ b> L provided on the left side of the aircraft, and the driving force generated by the engine 2 on the rear side of the aircraft is more than the engine 2. A transmission case 3 is provided for transmission to each part of the airframe, and left and right output shafts 4 and 4 are respectively attached to the transmission case 3. In addition, a pump unit 5 that adjusts hydraulic pressure is provided at the front of the right airframe frame 1 </ b> R provided on the right side of the airframe, and a battery 6 that supplies power to the rear side of the pump unit 5 is installed. A cover frame 13 that covers the outer periphery and upper part of the engine 2 and the transmission case 3 is provided on the left body frame 1 to prevent dirt such as mud from adhering to the engine 2 and the transmission case 3.

  Then, the left and right output shafts 4 and 4 are projected outward from the outer end portions of the left and right body frames 1L and 1R, and the left and right output shafts 4 and 4 are attached to the left and right traveling transmission cases 7 and 7, respectively. Then, left and right traveling crawlers 12L and 12R that travel in the field are attached to the left and right traveling transmission cases 7 and 7, respectively, and the traveling unit A is configured.

  With the above configuration, the taro harvesting machine can travel across the fence, so that the taro to be harvested that is vegetated in the fence can be dug and harvested without being crushed by the left and right traveling crawlers 12L and 12R. Therefore, the value of taro is improved.

  Further, the left aircraft frame 1L is provided with the heavy engine 2 and the transmission case 3, and the right aircraft frame 1R is provided with the hydraulic pump unit 5 and the battery 6 which are equivalent heavy items, so that the right and left weight balance can be achieved. Since the configuration is stable, the straightness and turning performance of the airframe are improved, and work efficiency and operability are improved.

Next, the excavation harvesting part B will be described.
As shown in FIGS. 1 and 2, a columnar support frame 14 that covers the transmission shafts 4 and 4 is provided, and an attachment frame 15 is attached to the right body frame 1 </ b> R side of the support frame 14. The left and right first digging and conveying frames 16 and 16 are attached to the attachment frame 15 and the cover frame 13 so as to be rotatable up and down toward the front side of the machine body. Digging driven sprockets 17 and 17 are rotatably provided at the front portions of the left and right first digging transport frames 16 and 16, respectively, and left and right tension sprockets 18 and 18 are provided at the rear end portions thereof. The take-up and transport frames 16 and 16 are arranged so as to be pivotally attached to a support shaft 19 that also serves as a rotation fulcrum.

  Further, a digging blade 20 is installed between the left and right of the front end portions of the left and right first digging transport frames 16 and 16 to dig into the ridge and dig up taro, and at the rear of the digging ridge 20 and A guide plate 21 for moving the taro backward in the center in the left-right direction is attached in a rear-upward inclined posture, and mud and dirt are excavated from the digged taro at the rear of the digging pit 20 and on the left and right sides of the guide plate 21. A plurality of guide bars 22 which are moved while being dropped downward are arranged at intervals in the left-right direction.

  As shown in FIG. 3 (b), when the guide plate 21 is provided in a rear-upward inclined posture and the guide bar 22 is in a rear-down inclined posture, the dug mud is removed from the gap between the guide bars 22 ... It tends to fall down.

  Furthermore, when the cut-out portion 20a through which mud and impurities pass is formed on the digging blade 20, the mud becomes difficult to adhere to the pit 20 when digging up the taro, so the adhering mud becomes resistance and becomes taro. Preventing the harvester from running is prevented, improving work efficiency.

  As shown in FIGS. 4 (a) and 4 (b), either one of the right and left excavation driven sprockets 17 is provided with an output shaft 44 toward the outside of the machine body, and the output shaft 44 is housed in a swing transmission case 48. The input sprocket 45 is pivotally attached. A swing transmission chain 47 is wound endlessly across the input sprocket 45 and output sprocket 46 housed in the swing transmission case 48, and the digging blade is attached to the output shaft 49 pivotally attached to the output sprocket 46. The excavating and swinging mechanism 50 may be configured by attaching an eccentric cam 49 a that contacts the lower portion of the head 20 and swings the blade 20 to pivot. At this time, the front lower portion of the digging blade 20 is attached to the left and right first digging and conveying frames 16 and 16, and the rear portion of the digging blade 20 is brought into contact with the eccentric cam 49a.

  Then, the left and right second digging and conveying frames 23 and 23 are attached to the support shaft 19 and between the left and right first digging and conveying frames 16 and 16 so as to be vertically rotatable. The second digging / conveying frames 23 and 23 are arranged so as to be rotatable up and down with the support shaft 19 as a fulcrum, and are arranged at a left and right interval narrower than the left and right intervals of the first digging and conveying frames 16 and 16. And

  Further, digging drive sprockets 24, 24 are rotatably provided at the rear ends of the second digging transport frames 23, 23, and the digging drive sprockets 24, 24 are connected by a drive rotary shaft 25. Further, one end of the drive rotating shaft 25 is projected from the right side of the machine body, and a hydraulic drive motor 26 for rotating the drive rotating shaft 25 is attached to one end of the drive rotating shaft 25. A motor cover 27 is attached around the drive motor 26 to prevent an operator from touching the drive motor 26 by mistake.

  The excavation drive sprockets 24, 24, the tension sprockets 18, 18 and the excavation driven sprockets 17, 17 are wound endlessly, and the excavation drive chains 28, 28 are The excavation conveyance conveyor 30 is comprised by arrange | positioning the some conveyance bar 29 ... which puts the taro excavated between right and left, and conveys back in the front-back direction at predetermined intervals. Mounting plates 40 and 40 are provided outside the front end portion of the digging and conveying conveyor 30, that is, outside the front end portions of the left and right first digging and conveying frames 16 and 16, respectively. 41 is mounted with the hollow portion facing in the front-rear direction, and the mounting adjustment rods 42, 42 are inserted into the hollow portions of the left and right bosses 41, 41, and the front end portions of the left and right mounting adjustment rods 42, 42 are attached to the field. Rollers 43 and 43 that are installed to prevent excessive lowering of the digging and conveying conveyor 30 are rotatably mounted. The left and right mounting adjustment rods 42, 42 are slid in the front-rear direction along the left and right bosses 41, 41, and the positions thereof are determined by fixing members (not shown) with bolts. The installation position can be changed.

  In addition, in the winding region of the excavation transmission chains 28, 28 constituting the excavation conveyor 30, the contact rollers 32, 32, A plurality of vibration devices 33... Configured by rotatably mounting 32 are arranged at positions where the contact rollers 32, 32, 32 are intermittently in contact with the transport bar 29. The vibration devices 33 are provided with hydraulic motors 34 for supplying rotational drive force to the vibration devices 33, and the contact rollers 32, 32, 32 of the vibration devices 33 are transported at a timing set by the operator. 29... Can be configured to be in intermittent contact with. When the vibration device 33 is rotated in the clockwise direction as viewed from the side of the taro, the taro remains in the conveyance path because no force is generated to return the taro to the conveyance start end even if vibration occurs. There are no reciprocations, improving work efficiency.

  With the above configuration, the vibration device 33 can intermittently vibrate each part of the digging and conveying conveyor 30, so that the mud adhering to the taro being conveyed can be dropped by vibration, so that the operator can harvest This makes it possible to visually check the size and shape of the taro and the presence or absence of scratches, thereby improving the sorting accuracy.

  And since the mud has been removed from the harvested taro, the time and labor required to remove the mud during the separation and cleaning of the harvested litter and grandchildren is reduced, and the labor of the worker is reduced. Is reduced.

  One vibration device 33 is provided near the conveyance start end side, and at least one vibration device 33 is provided before and after the support shaft 19 serving as a rotation fulcrum on the conveyance start end side and conveyance end side of the excavation conveyance conveyor 30. The mud can be dropped before moving to the end side, and the mud that has not fallen even after passing through the two vibrating devices 33, 33 can be dropped by the third vibrating device 33. The amount can be further reduced.

  A receiving plate 36 is provided between the lower left and right sides of the left and right first digging and conveying frames 16 and 16, and the first conveying frames 16 and 16, that is, the digging, are provided between the receiving plate 36 and the columnar support frame 14. A front elevating cylinder 37 that adjusts the height by rotating the conveyance start end side (front side) of the conveyance conveyor 30 up and down is disposed to be extendable. Further, a front support plate 38f is provided on the rear upper part of the first digging and conveying frame 16 on the left side of the machine body, and a rear support plate 38r is provided on the front upper part of the second digging and conveying frame 23 on the left side of the machine body. The left and right second digging / conveying frames 23, 23, that is, the rear vertical movement cylinders 39 that vertically rotate the conveyance ending side (rear side) of the digging / conveying conveyor 30 are arranged on the plate 38f and the rear support plate 38r to be extendable. Thus, the excavation transport unit B is configured.

  In addition, since the front raising / lowering cylinder 37 and the vertical movement cylinder 39 in this case are hydraulic, the hydraulic pressure necessary for the expansion / contraction of the front raising / lowering cylinder 37 and the rear vertical movement cylinder 39 is supplied from the hydraulic pump unit 5. The front elevating cylinder 37 and the rear vertical movement cylinder 39 may be electrically operated to obtain electric power from the battery 6.

  With the above configuration, when the front elevating cylinder 37 is telescopically operated, the conveyance start end side of the excavation conveyance conveyor 30 is rotated up and down, so that the excavation conveyance is performed according to work conditions such as varieties of taro, vegetation conditions, and field conditions. Since the entrance angle of the conveyor 30 to the ridge can be adjusted to an appropriate angle, the digging blade 20 provided at the front end is prevented from coming into contact with the taro and being damaged, and the commercial value of the taro is improved.

  And by adjusting to an appropriate angle according to the working conditions, the resistance of the soil when the digging blade 20 enters the dredging can be suppressed, so the running of the taro harvester is slowed by the resistance of the soil Is prevented and the work efficiency is improved.

  Furthermore, even if the storage bag 70 is full of taro, the weight balance is biased toward the rear side of the aircraft and the front side of the aircraft may float up, the center of gravity can be changed by lowering the front end of the digging and conveying conveyor 30 , The balance of the taro harvester can be easily stabilized and the operability is improved.

  Further, when the rear vertical movement cylinder 39 is expanded and contracted, the conveyance terminal side of the digging and conveying conveyor 30 is rotated up and down, so that the container bag 70 of the container portion D to be described later is transferred from the conveying terminal part of the digging and conveying conveyor 30. Since the fall distance to the bottom can be adjusted to a distance that is as short as possible according to the amount of taro stored in the storage bag 70, it is possible to prevent the taro from being damaged by the impact of the drop, and the commercial value of taro improves.

  In addition, in the present configuration, the transport front end side and the transport end side of the digging transport conveyor 30 can be moved up and down independently, so that the transport end is adjusted to the optimum position for the taro harvesting and harvesting. The side can be adjusted to a position where the fall distance of the taro is as short as possible, and the work efficiency and the commercial value are improved at the same time.

  In addition, when it is set as the structure where the excavation conveyance conveyor 30 becomes a back-up inclination posture in a substantially straight line when the conveyance end side of the excavation conveyance conveyor 30 is raised to a height at which the capacity of the containing bag 70 is maximized, Since the inclination angle of the conveyor 30 can be made gentle, it is possible to prevent the taro that is being transported from falling, and the same taro is not moved over the transport path many times, thereby improving the work efficiency.

Moreover, since the fallen taro collides with the subsequent taro, it can be prevented from damaging each other, so the value of the taro is improved.
In addition to this, when the taro harvester is cleared after the digging and harvesting operation is completed, the conveyance end side of the digging and conveying conveyor 30 is further raised, and the rear end portion of the digging and conveying conveyor 30 is left and right. If the configuration is located above the rear end portions of 1L and 1R, the front-rear width of the machine body is shortened, making it easier to store the taro harvester in a warehouse or the like.

  Further, the rear vertical movement cylinder 39 is provided on the front support plate 38f provided on the upper rear side of the first digging / conveying frame 16 and the rear support plate 38r provided on the upper front side of the second digging / conveying frame 23. Since it is difficult to be affected by the vertical movement on the transfer start end side of the take-up conveyor 30, the vertical position adjustment on the transfer start end side and the transfer end side of the excavation transfer conveyor 30 can be performed independently.

  Then, by providing transport bars 29, which constitute the digging and conveying conveyor 30, in the digging transmission chains 28 and 28 with a space in the front-rear direction, the burrs are peeled off from the mud and taro that are being transported. Since the mud stuck to the transport bar 29 can be dropped downward, the operator can easily visually check the exact size and shape of the taro, the occurrence of pupae and grandchildren, and the presence or absence of scratches or illness. As a result, the sorting accuracy of taro is improved.

  Furthermore, since it becomes difficult for the mud to be transported to the storage bag 70 together with the taro, the amount of mud entering the storage bag 70 is reduced, so that the capacity of the storage bag 70 can be used only for harvesting taro. The work efficiency can be improved by reducing the replacement frequency of 70.

  Further, by providing a plurality of vibration devices 33 that vibrate each part of the excavation transport conveyor 30 in contact with the transport bar 29, the transport bar is peeled off from the taro and the taro that is being transported. 29 ... etc. Since the mud adhered to the soil can be dropped by vibration, the operator can easily visually check the exact size and shape of the taro, the occurrence of pupae and grandchildren, and the presence or absence of scratches or illness. , Taro selection accuracy is improved.

In addition, since it becomes difficult for mud to remain on the transfer bars 29, etc., the work time and labor for removing mud during cleaning after work is reduced, and the labor of the operator is reduced.
Since the vibration device 33 is configured such that the contact rollers 32, 32, 32 are provided at the apexes of the trident-shaped rotating plate 31 so as to intermittently contact the transport bar 29, the vibration is constantly generated. Since large vibrations can be applied to the taro and the transport bar 29, the attached mud is more easily removed, and the sorting accuracy is improved.

  In order to improve the effect of removing mud, it is conceivable that a powerful vibration device is provided to constantly vibrate the conveyor 30. However, in order to generate a large vibration, a larger oil pressure and electric power are required. Therefore, there is a problem that the consumption time of power and fuel increases and the operation time is shortened. In order to extend the operation time, it is necessary to change the hydraulic pump to a more powerful one or to change the battery to one having a large capacity, but there is a problem that the cost increases accordingly. Furthermore, if a strong vibration is constantly applied to the conveying bar 29, the conveying bar 29, the digging transmission chain 28, 28, etc. are easily damaged by the vibration. Thus, the vibration device 33 that generates such intermittent vibration is required.

  Then, by driving each of the plurality of vibration devices 33 with independent hydraulic motors 34, the timing at which the contact roller 32 and the transport bar 29 contact each other can be determined for each vibration device 33. It is possible to remove the mud by adding vibration to the taro without fail.

  In addition, by providing the left and right rollers 43, 43 outside the front end of the excavation conveyor 30, the conveyance start end side of the excavation conveyor 30 is prevented from moving below the set position of the rollers 43, 43. Since it is possible to prevent the excavation and transport conveyor 30 moved excessively downward from coming into contact with the field scene and being damaged, the excavation and transport conveyor 30 is less likely to be damaged.

  In addition, even if the front elevating cylinder 37 loses its holding force due to a problem such as insufficient hydraulic pressure, the conveyance start end side of the digging conveyance conveyor 30 may move downward due to its own weight, the height set by the left and right rollers 43, 43 is set. The digging and conveying conveyor 30 is prevented from being damaged.

Next, the control unit C that operates the aircraft will be described.
As shown in FIGS. 1 and 2, seat support frames 51 and 51 are provided at the rear portions of the left and right body frames 1L and 1R, respectively, and bases of seat support arms 52 and 52 are provided on the left and right seat support frames 51 and 51, respectively. The base portions of the seat support rods 53 and 53 are provided on the front side of the body from the seat support arms 52 and 52 so as to be rotatable in the front-rear direction. The end portions of the seat support arms 52 and 52 and the seat support rods 53 and 53 are connected by connecting plates 54 and 54, respectively, to form parallel link mechanisms 55 and 55. Work sheets 56L and 56R on which the worker and the auxiliary worker are seated are rotatably attached.

  Then, on the front side of the work sheet 56L on the left side of the machine body and on the rear side of the engine 2 and the transmission case 3, a control panel 57 for operating the traveling direction, turning, traveling speed, and hydraulic on / off of the machine body is attached. A hydraulic pressure switching lever 58 for switching on / off of hydraulic pressure is provided at the upper part of the operation panel 57, and a traveling operation lever 59 for operating on / off of traveling and traveling speed is provided at the lower part of the hydraulic pressure switching lever 58 and at the center of the left and right. Left and right turning operation levers 60 and 60 for performing a left and right turning operation are provided on both the left and right sides of the traveling operation lever 59.

  Further, an L-shaped auxiliary operation support frame 61 is provided on the mounting frame 15, and a bent portion of the auxiliary operation support frame 61 is positioned above the excavation conveyance conveyor 30. The auxiliary operation support frame 61 is turned on and off at the hydraulic drive motor 26 that drives the excavation and conveyance conveyor 30 and the rotation speed is changed. An operation lever 63, a second elevating operation lever 64 for elevating and lowering the rear vertical moving cylinder 39, and a vibration operating lever 65 for switching on and off the rotational speed of the hydraulic motor 34 for driving and rotating the vibration device 33. Are attached via an oil feeding unit 66. One end of the oil feeding unit 66 is connected to the hydraulic pump unit 5 by an oil feeding hose (not shown), and the other end of the oil feeding unit 66 is connected to the transmission case 3, the drive motor 26, and the front lifting cylinder 37. The control unit C is configured by connecting the rear vertical movement cylinder 39 and the hydraulic motor 34 through oil feeding hoses (not shown) to form the hydraulic system operating device 68.

  With the above configuration, when the parallel link mechanisms 55, 55 are rotated in the front-rear direction, the vertical height and the front-rear position of the work sheets 56L, 56R can be adjusted. This makes it possible to sit in a posture that makes it easy to perform sorting operations, so that even long hours of work are less fatigued and the labor of the operator is reduced.

  Further, since the work sheets 56L and 56R are configured to be rotatable, the worker and the auxiliary worker can face the direction in which the work can be easily performed and the direction in which the work can be easily lowered from the machine body. Getting on and off is easy, and safety when getting on and off is improved.

  The driving motor 26 for driving the excavating and conveying conveyor 30 is provided near the work sheet 56R on the right side of the machine body, that is, on the right side of the machine body on which the auxiliary worker boardes, so that the operator who operates the machine boardes. Since there are no members protruding from the excavating and conveying conveyor 30 around the work sheet 56L and the operation panel 57 on the left side of the machine body, and there is nothing that hinders the operator from maneuvering the machine body, the operability is greatly improved.

  Furthermore, since the hydraulic system operating device 68 is provided above the excavating and conveying conveyor 30, the worker and the auxiliary worker can collectively operate the hydraulic system, so there is no need to move around during the operation. , Work efficiency is improved.

Next, the accommodating part D is demonstrated.
As shown in FIG. 1 and FIG. 2, a U-shaped hanging frame in plan view that suspends a storage bag 70 for storing taro in an open state outside the rear portions of the left and right second digging transport frames 23, 23. 69 is attached so as to be rotatable up and down, and a rear plate 71 serving as a shooter of a storage bag 70 for storing a taro when tilted downward is attached to the rear portion of the suspension frame 69.

  A bucket 72 that receives and supports the bottom of the storage bag 71 is provided between the left and right of the left and right body frames 1L and 1R and is supported at the rear end portion thereof, so that the front end portion of the bucket 72 and the support frame 14 are supported. The bucket elevating cylinder 73 is arranged to be extendable and retractable. The bucket lifting cylinder 73 and the other end of the oil feeding unit 66 are connected by an oil feeding hose (not shown), and the bucket lifting lever 74 is attached to the hydraulic system operating device 68 to constitute the housing part D. .

  When the bucket 72 is configured to rotate downward to a height at which the rear end portion is in contact with the field, and to move upward on the rear end portions of the left and right body frames 1L and 1R, the bucket 72 can be accommodated. Since the front-rear width can sometimes be shortened, it can be accommodated even if the accommodation space is small.

  With the above configuration, when the bucket lifting lever 74 is operated, the bucket 72 can be rotated up and down. Therefore, when the worker moves the storage bag 70 containing taro from the taro harvester, There is no need to move the work, and the labor of the worker is reduced.

Hereinafter, another embodiment of the present taro harvester will be described.
As shown in FIG. 6, the conveyance bars 29 constituting the excavation conveyance conveyor 30 are provided with guide protrusions 75 that protrude upward every few, and that guide the protrusions 75 while preventing the taro from rolling down. The four transfer bars 29 on the rear end side of the portion where the guide protrusions 75 are disposed are arranged below the other transfer bars 29. The conveying bars 29 arranged below are arranged in a concave shape in a side view, and form recesses 76 into which taro enters.

  With the above configuration, even if the taro that is being transported by the digging transport conveyor 30 falls down toward the transport start end side, the guide protrusion 75... Regulates the taro's fall movement and resumes transport from that location. Is prevented from coming into contact with the subsequent taro and being damaged, thereby increasing the value of the taro.

Moreover, since the same taro can be prevented from reciprocating the conveyance path many times, the work efficiency is improved.
Then, the four conveying bars 29 on the rear end side of the portion where the guide protrusions 75 are arranged are arranged below the other conveying bars 29 to form the recesses 76, so that the conveying bars 29 are being conveyed. Since the taro can enter the recess and can be made difficult to fall down, the work efficiency and the product value of the taro are improved.

Further, since the taro enters the recesses 76, the mud peeled off from the taro becomes difficult to be scattered, so that cleaning after the end of the work becomes easy.
As shown in FIG. 7, mounting bosses 77, 77 are provided on the left and right second digging transport frames 23, 23, respectively, and hanger frames 78 that suspend the containing bag 70 in the open state are attached to the left and right mounting bosses 77, 77. Insert it slidably back and forth.

  Then, left and right extension frames 79 and 79 are attached from the rear ends of the left and right aircraft frames 1L and 1R toward the rear of the aircraft, and the left and right extension frames 79 and 79 receive and support the bottom of the storage bag 70. 80 is attached so that the front end side can freely rotate up and down. A bucket elevating cylinder 74 is disposed on the front end of the bucket 80 and the support frame 14 such that the bucket 80 can extend and contract. It is configured to be able to rotate over a range of a rearward downward tilt posture that is shorter than the vertical width on the rear side of the machine body.

  When removing the storage bag 70 from the hanger frame 78, the bucket 80 is operated by operating the bucket lifting cylinder 74 to raise the front end side of the bucket 80 and moving the storage bag 70 rearward by its own weight. When the bag 70 moves rearward, the hanger frame 78 slides rearward along the mounting bosses 77, 77, and the storage bag 70 is moved to a location away from the taro harvester. 70 does not come into contact with the taro harvesting machine, and it is possible to prevent the taro from being damaged and the product value from being lowered.

  In particular, in the case of a work configuration in which the bucket-type attachment 81 is attached to the work vehicle V such as a tractor or a forklift and the work vehicle V receives the storage bag 70 directly from the taro harvester, the storage bag 70 is placed on the bucket-type attachment 81. Since it can be slid down, the labor of the worker is reduced, and the worker only has to perform the work of attaching the next storage bag 70 to the hanger frame 78, so that the work efficiency is improved.

  Further, when the work vehicle V is used as described above, as shown in FIGS. 8 and 9, a plurality of space portions 82a, which are comb-shaped in a plan view, are cut at the rear end portions of the left and right body frames 1L and 1R. The missing bucket 82 is provided in a substantially horizontal posture with the body frames 1L and 1R, and the work vehicle V has a comb-shaped bottom portion in which a plurality of space portions 83a... Into which the protrusion portions enter the space portions 82a. A bucket attachment 83 is attached. A pole 84 is formed on the bucket attachment 83 in the work vehicle V side direction (the front side of the machine body of the work vehicle V). The pole 84 hooks a hanging string 70a used when the accommodation bag 70 is hung with a fork or hoist of a forklift.

Further, a plurality of free rollers 85 are rotatably arranged at equal intervals in the front-rear direction in the bucket 82.
With the above configuration, the bucket 82 and the bucket attachment 83 can be made to approach and approach the space portions 82a... 83a, so that after the storage bag 70 is loaded onto the bucket attachment 83 from the taro harvester, the work vehicle Since the transfer of the storage bag 70 is completed simply by moving the V forward, the work efficiency is improved and the labor of the operator is reduced.

  Further, since the free rollers 85 are provided in the bucket 82, the storage bag 70 can be prevented from staying on the bucket 82 even when the storage bag 70 is heavy, so the work vehicle V is moved. At this time, the storage bag 70 can be prevented from falling to the farm field, so that the taro is prevented from being damaged by the impact of the drop, and the commercial value is improved.

  Furthermore, by adopting a configuration in which the hanging strap 70a of the storage bag 70 is hooked on the pole 84 disposed on the front side of the bucket attachment 83, the forward movement of the work vehicle V can be achieved even if the storage bag 70 is not sufficiently moved toward the bucket attachment 83. Since the storage bag 70 is pulled to the work vehicle V side at this time, the storage bag 70 is prevented from falling to the field, and the commercial value of the taro is improved.

12L left body frame (airframe)
12R Right body frame (airframe)
14 Support frame (connection support member)
16 1st digging conveyance frame 20 digging ridge (digging member)
23 Second digging conveyance frame 17 Digging driven sprocket (driven rotating body)
18 Tension sprocket (relay rotating body)
19 Spindle (Rotating spindle)
24 digging drive sprocket (drive rotor)
28 Digging transmission chain (powerless endless belt)
30 digging and conveying conveyor (digging and conveying device)
36 Receiving plate (receiving member)
37 Front lifting cylinder (first lifting member)
38f Front support plate (front support member)
38r Rear support plate (rear support member)
39 Rear vertical cylinder (second lifting member)
50 Excavation swing mechanism 69 Hanging hanger (installation member)
70 Containment bag (container)

Claims (7)

A traveling device (12L, 12R) that travels in the field is provided, a digging transport device (30) that digs out the crop from the field and transports it to the rear is provided, and the transport start end side of the digging transport device (30) is moved up and down. Crop excavation and harvesting provided with a first elevating member (37) and an installation member (69) for installing an accommodation member (70) for accommodating a crop discharged from the conveyance termination portion of the excavation conveyance device (30) In the machine
The digging and conveying apparatus (30) is configured such that the conveying terminal side is movable up and down, and the second elevating member (39) for moving the digging and conveying apparatus (30) up and down the conveying terminal side is provided. Crop digging harvester.   The sorting and conveying device (30) is provided with a rotating support shaft (19) at a rear end portion of a first digging and conveying frame (16) provided on the front side of the machine body, and a relay rotating body ( 18) is rotatably provided, a driven rotating body (17) is rotatably provided at a front end portion of the first digging and conveying frame (16), and a second digging is provided behind the first digging and conveying frame (16). The take-up / conveying frame (23) is provided so as to be movable up and down with the rotation support shaft (19) as a turning fulcrum. A drive endless belt (28) is wound around the drive rotor (24), the driven rotor (17), and the relay rotor (18) in an endless manner, and the transport start end side below the sorting and transport device (30). The first elevating member (37) that moves up and down is provided, and the conveyance end side is moved up and down above the sorting and conveying device (30). Crop photo harvester according to claim 1, characterized in that a second lifting member (39).   A connection support member (14) for connecting the travel devices (12L, 12R) is provided, and a receiving member (36) is provided at a lower portion of the excavation conveyance device (30), and the connection support member (14) and the reception member ( The crop excavator according to claim 1 or 2, wherein the first elevating member (37) is provided in 36).   A front support member (38f) is provided on the top of the first digging and conveying frame (16), a rear support member (38r) is provided on the top of the second digging and conveying frame (23), and the front support member ( The crop excavator and harvester according to any one of claims 1 to 3, wherein the second elevating member (39) is provided on the rear support member (38r) and the rear support member (38r).   A plurality of conveying members (29) for conveying crops to the transmission endless belt (28) are provided at equal intervals, and vibration is generated in contact with the conveying member (29) in a winding region of the transmission endless belt (28). The crop excavator and harvester according to any one of claims 2 to 4, further comprising a device (33).   The crop excavation according to claim 5, wherein at least one vibration device (33) is provided on each of the first digging and conveying frame (16) side and the second digging and conveying frame (23) side. Harvester.   A digging member (20) that enters the soil is provided at the lower front end of the digging and conveying device (30), and a digging and swinging mechanism (50) that swings the digging member (20) is provided. The crop excavator according to any one of claims 1 to 6, wherein

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