JP3547362B2 - Leaf removal device for root crops - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides an endless transport belt for cutting, which feeds a root vegetable lifted from a field in a suspended posture and supplies the root vegetable to a rotary cutter for cutting leaves, and the rotation of the root vegetable when the root vegetable is supplied to the rotary cutter. The present invention relates to a leaf removing device for a root crop harvesting machine, which comprises a positioning endless rotating belt-shaped body which abuts on root crop to perform positioning with respect to a cutter.
[0002]
[Prior art]
Conventionally, in the root crop harvesting machine, as shown in, for example, Japanese Patent Application Laid-Open No. 9-308346, a transmission chain is wound around drive shafts of a positioning endless rotating belt-like body, a cutting endless transport belt, and a rotary cutter. Thereby, the driving force is transmitted to each of the positioning endless rotating belt-like body, the cutting endless transport belt, and the rotary cutter.
[0003]
[Problems to be solved by the invention]
In this kind of root crop harvester, the positioning endless rotating belt-like body, the endless transport belt for cutting, and the transmission means for the rotary cutter are arranged below them so as not to hinder the root crop transport, so If soil or mud falls from the root vegetables to be produced, the soil or mud is likely to fall onto the transmission case in which the transmission means is provided. Conventionally, since a chain type is adopted as the transmission means, the size of the transmission case is increased and the transmission case is formed into a flat shape, so that soil and mud dropped from root vegetables are easily accumulated on the transmission case.
An object of the present invention is to provide a leaf removing device for a root crop harvesting machine that can drive the endless belt-shaped body, the conveyor belt, and the cutter in a state where the above-described trouble is easily avoided.
[0004]
[Means for Solving the Problems]
The configuration, operation and effect of the invention according to claim 1 are as follows.
[0005]
〔Constitution〕
Endless transport belt for cutting, which feeds the root vegetables lifted from the field in a suspended posture and supplies it to the rotary cutter for cutting leaves, and positions the root vegetables with respect to the rotary cutter when the root vegetables are supplied to the rotary cutter. And a rotatable transmission shaft that is drivable below the endless transport belt for cutting is provided in parallel with the transport direction of the endless transport belt for cutting. Are linked to the drive shafts of the endless transport belt for cutting, the positioning endless rotating belt, and the rotary cutter via a gear mechanism.In the leaf removal device of the root crop harvester,
As a rotary transmission shaft, a rotary transmission shaft interlocked with the drive shaft of the positioning endless rotary belt and the rotary cutter via a bevel gear mechanism, and a rotary shaft with a bevel gear mechanism on the drive shaft of the rotary cutter and the endless transport belt for cutting. The rotation transmission shaft that is interlocked with the rotation transmission shaft is provided so as to rotate around the same axis, and the drive shaft of the rotary cutter is interlocked with both rotation transmission shafts via a bevel gear mechanism. In a state in which the cylindrical shaft is rotatably engaged with the rotary cylindrical shaft, and is fitted inside the rotary cylindrical shaft so as to be slidably adjustable in the axial direction thereof, and is integrally rotatably connected to the rotary cutter. And the cutter support shaft.
[0006]
[Action]
An endless transport belt for cutting, a positioning endless rotating belt, and a rotary transmission shaft that is drivable via a gear mechanism to each drive shaft of the rotary cutter are interlocked. As a transmission case that has a rotary transmission shaft and gear mechanism, which are the transmission means for the rotary cutter, inside, it is smaller than a conventional chain transmission case or has a rounded shape. It can drive the endless transport belt, the positioning endless rotating belt, and the rotary cutter.
Also, since power is transmitted from one of the two rotation transmission shafts to the other transmission shaft via the cutter drive shaft, the height of the rotary cutter is adjusted by slidingly adjusting the cutter support shaft with respect to the rotary cylinder shaft. Power can be transmitted to each of the positioning band, the transport belt, and the rotary cutter while the two rotation transmission shafts are linearly arranged so as to rotate about the same axis. In other words, the size of the transmission case is reduced as compared with the case where the rotation transmission shaft is made to be a single shaft, and the height of the rotation cutter can be adjusted by adopting the arrangement relationship in which the cutter drive shaft is located on the side of the rotation transmission shaft. It is possible to adjust the height of the rotary cutter.
[0007]
〔effect〕
Therefore, such as cutting and positioning conveyor belts, endless rotating belts, and a relatively small transmission means for the cutter, are provided inside a transmission case where soil and mud are difficult to accumulate, and soil and mud fall from root vegetables. Can also be driven while avoiding troubles such as accumulation in the transmission case and causing a drive failure.
In addition, while the height of the rotary cutter can be adjusted to adjust the cutting position of the leaves, a small case is used as the transmission case to reduce the accumulation of dirt and mud and reduce weight. it can.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
As shown in FIGS. 1 and 2, a pair of left and right crawler-type traveling devices 1, a driving unit 2 provided with a driving seat 2 a for riding and driving, and a driving unit having an engine E located below the driving seat 2 a. A harvesting unit 10 including a pair of left and right weeding devices 11, 11 and a single wheel 12 for supporting the harvesting unit is connected to the lateral side of the driving unit 2 of the traveling machine having the harvesting unit. A root vegetable conveyor 40 whose front end is located above the pair of left and right body front-rear facing main frames 13a of the harvest part frame of the harvest part 10 and below the leaf part removing device 20 of the harvest part 10, this root vegetable conveyor 40 The sorting conveyor 48 located at the rear end of the traveling machine body on the side of the driving unit on the rear end side, the collecting unit 50 located behind the operating unit 2 at the transport end side of the sorting conveyor 48, and the collecting unit 50 The luggage carrier 51 located on the rear side of the traveling body is longer in the longitudinal direction of the body located from the lateral outside of the operating unit 2 to the lateral outside of the collecting unit 50 on the lateral side opposite to the side where the harvesting unit 10 is located. Each of the large loading platform 52, the operation unit 2, the large loading platform 52, the collection unit 50, the container loading unit 53 surrounded by the sorting conveyor 48, and the harvesting unit 10 is provided on the traveling body. The driving force of the engine E is configured to be transmitted to the harvesting unit 10 and each of the conveyors 40 and 48, thereby constituting a riding type ginseng harvester. In this ginseng harvester, the weeding device 11 on the left and right of the harvesting unit 10 is separated on both sides of a row of ginseng vegetated in a field, and the traveling body travels along the ginseng row. Thus, the ginseng a is pulled out of the field with the leaf b attached, and the beard root attached to the lower end side of the ginseng a and the leaf b attached to the upper end side are removed, and the beard root and the leaves are removed. The ginseng a having no part b is collected in a container 54 such as a container by the collection part 50, and the beard root and the leaf b removed from the ginseng a are released to the field. It is configured as follows.
[0013]
As shown in FIGS. 1, 5 and the like, a mounting cylinder 13b serving also as a connecting frame for connecting the base ends of the pair of left and right main frames 13a is provided upright at the rear of the body frame 3 of the traveling body. The pair of right and left supports rotatably connected to each other over the pair of right and left supports 4 so as to be vertically swingable around the horizontal axis P of the body of the mounting cylinder 13b on the body frame 3 of the traveling body. Of the main frame 13a, a rear support column 13c erected at the base end of each main frame 13a, a harvesting part transmission case 60 attached across the middle part of both main frames 13a, and both ends of the harvesting part transmission case 60 And a pull-up transmission case 61 extending upward and forward from the body, and a portion extending forward from the one end of the harvesting unit transmission case 60. The transmission case 62, by the front post 13d erected on both sides of the harvesting unit transmission case 60, are configured harvesting unit frame.
[0014]
In this harvesting unit frame, a piston rod is connected to a cylinder connecting member 13e that is connected across the left and right main frames 13a between the front support 13d and the rear support 13c, and a cylinder tube is connected to the body frame 3 of the traveling body. The hydraulic lift cylinder 5 swings up and down with respect to the traveling machine body.
[0015]
As shown in FIGS. 1 and 2, the harvesting unit frame, and a pulling-up device 14 attached to a front end side of the main frame 13 a of the harvesting unit frame and an extending end side of the pulling-up transmission case 61. The right weeding device 11 attached to the lower end side of the right device portion of the pulling-up device 14 and the extending end side of the weeding transmission case 62, and extending from the upper end side of the right weeding device 11. It is supported by the left weeding device 11 attached over the transmission case 63 that extends out and the lower end of the left device portion of the pull-out device 14, and the support arms 13f extending from the front end side of each of the main frames 13a. And a whisker cutting device 16 attached to the left and right main frames 13a below the front end side of the pulling-up device 14, and the front support 13d. The leaf portion removing device 20 which is mounted over the upper end side to each other of the serial rear post 13c, have configured the harvesting unit 10.
[0016]
The weeding device 11 on the left and right causes the endless rotating chain, which is rotatably provided inside the weeding case 11a, to cause the claw 11b to move upward in a mounting posture protruding forward from the weeding case 11a. It consists of a weeding device and a rake rod 11c extending forward from the lower end side of the inducing weeding device. The leaf b of the ginseng a to be harvested is scooped, the leaves of the ginseng to be harvested are raised, and the weeding device is moved upward by the raising mechanism of the weeding device, and the weeding and raising is performed by the combing action of the claws 11b.
[0017]
The left and right soil loosening blades 15 enter the soil on the side of the ginseng a to be harvested, and loosen the soil so that the ginseng a easily comes off the soil when the extracting device 14 lifts the ginseng a.
[0018]
The pulling-up device 14 is configured such that the endless transport belt 14a is located at a higher arrangement level as it reaches the rear side of the fuselage. Similarly to the device portion, the endless transport belt 14a is located at a higher arrangement level as it reaches the rear side of the fuselage. The leaf part b of the ginseng a after the action of the weeding device 11 and the earth loosening blade 15 acts and is conveyed in a rearward direction of the machine body while being nipped and lifted by the left and right endless conveying belts 14a, thereby obtaining a ginseng a to be harvested. Is pulled out of the field with the leaf b attached, and is conveyed upward to the rear of the machine in a suspended posture.
[0019]
The whisker cutting device 16 includes a guide member arranged on a path along which the ginseng a conveyed by the extracting device 14 moves, a rotary cutter 16a rotatably provided inside the guide member, and a rotary cutter 16a. The ginseng a, which is driven by an electric motor 16b that is driven by the pulling device 14, pulls out from the field and transports the ginseng to the rotating cutter 16a that is rotated by a guide body. Cut at 16a to separate it from ginseng a, and the separated beard roots are dropped into the field and released.
[0020]
As shown in FIGS. 1 and 6, the leaf removing device 20 includes a pair of left and right cast transmission cases 21 supported by the front support 13 d and the rear support 13 c of the harvesting unit frame. A positioning device 22 provided above the front end of the transmission case 21, a transporting device 25 for cutting provided above the rear end of both transmission cases 21, and a transporting end portion of the transporting device 25 and the pulling-up device 14. And a rotary cutter 35 disposed below and in the middle of the cutting transport device 25 and mounted to be rotatable on the upper side of each of the two transmission cases 21. is there.
[0021]
As shown in FIG. 6 and the like, the positioning device 22 winds an endless positioning chain 24 over a pair of front and rear sprockets 23a, 23b rotatably mounted on the upper side of the left and right transmission cases 21, respectively. The positioning chain 24 is also configured to be driven by a sprocket 23b that is freely driven on the rear side.
[0022]
That is, as shown in FIGS. 12 and 14, the link plates of the left and right positioning chains 24 are slidably provided with positioning rods 24b having positioning rollers 24a rotatably attached to the distal ends thereof. A holding spring 24d arranged between a rod support 24c provided on the link plate of the chain 24 and a spring receiving plate provided on the positioning rod 24b is fitted to the positioning rod 24b. In the middle of the pulling device 14, left and right positioning is performed between the portion of the leaf portion b of the ginseng a which is lifted and transported by the pulling device 14 and which is gripped by the endless transport belt 14a of the pulling device 14 and the ginseng a. The pull-in device 14 lifts and conveys the ginseng a afterwards between the positioning rollers 24a of the chain 24, and the positioning device 22 holds the leaf b by the left and right positioning chains 24 in a suspended posture. It is transferred to the rotary cutter 35. At this time, a difference is provided between the holding force exerted by the positioning device 22 by the holding spring 24d and the holding force of the pulling device 14, and that the pulling device 14 lifts the ginseng a. As a result, the ginseng a enters between the left and right positioning rollers 24a and is then moved rearward with respect to the positioning rollers 24a as it is transported backward, so that the ginseng a at the transport end side of the positioning device 22 as shown in FIG. The upper end of a is in contact with the positioning roller 24a and acts as a stopper so that the positioning roller 24a does not rise further with respect to the ginseng a. Thereby, when the ginseng a is supplied to the rotary cutter 35 and the leaf portion b is cut, the positioning device 22 is cut at a portion slightly upward from the upper end of the ginseng a. When the ginseng a is supplied to the rotary cutter 35, the ginseng a is positioned with respect to the rotary cutter 35.
[0023]
As shown in FIG. 6 and the like, the cutting conveyance device 25 winds the endless conveyance belt 27 over a pair of front and rear belt pulleys 26a and 26b rotatably mounted on the upper sides of the left and right transmission cases 21, and Each of the transport belts 27 is configured to be driven by a belt drivable belt pulley 26b on the rear side. The transport start ends of the left and right transport belts 27 in the cutting transport device 25 are arranged below the transport end of the pulling-up device 14 and above the transport end of the positioning device 22. Accordingly, the cutting transport device 25 holds the leaf portion b of the ginseng a after the positioning by the positioning device 22 is completed by the right and left transport belts 27 while inheriting the leaf portion b from the pulling-up device 14 and the positioning device 22, The paper is conveyed in a hanging posture and supplied between the left and right rotary cutters 35. Then, the leaves that have been cut by the cutter 35 and separated from the ginseng a are pinched as they are, and further conveyed in the machine rearward direction to release the pinching behind the cutter 35.
[0024]
As shown in FIGS. 6, 9, etc., the leaf discharging and conveying device 30 includes a frame supported by the frame of the left device of the pulling-up device 14 and the frame of the cutting and conveying device 25, which is rotatable before and after. An endless chain 32 having a transfer projection is wound around a pair of sprockets 31a and 31b, and the endless chain 32 is configured to be driven by a front drivable sprocket 31a. A transport guide rail 33 extending in the front-rear direction of the machine along the section is supported by a frame of a right side apparatus section of the pulling-up apparatus 14.
[0025]
As shown in FIG. 6, the input shaft 21a of each of the left and right transmission cases 21 is wound around a chain 14c that transmits power to a belt drive pulley 14b that winds around the conveyance end side of the endless conveyance belt of the pull-out device 14. The positioning chain 24 of the positioning device 22 and the endless transport belt 27 of the cutting transport device 25 are driven by the driving force transmitted from the pull-up transport device 14 in conjunction with the driven power take-off shaft 14d. The positioning device 22 and the cutting conveyance device 25 are set by the speed reducing action of the transmission mechanism composed of a bevel gear provided inside the transmission case 21 and the setting of the diameter of the sprocket 23a and the pulley 26a around which the positioning chain 24 and the endless conveyance belt 27 are wound. At a lower speed than the transport speed at the extraction device 14. That is, the transport end side of the pulling-up device 14 is in an arrangement state in which the distance from the positioning device 22 and the cutting transport device 25 increases toward the transport end side, but the positioning device 22 and the cutting transport device 25 are When the ginseng “a” is transported, the leaves “b” are transported between the positioning device 22 and the pulling-up device 14 and between the cutting transporting device 25 and the pulling-up device 14 so as not to tear off.
[0026]
A pulley that integrally rotates a drive shaft 34 that drives the front sprocket 31a of the leaf discharge and transport device 30 with a belt drive pulley 14b that winds around the transport end side of the endless transport belt 14a in the left device portion of the pull-out device 14. The endless chain 32 of the leaf feeding and conveying device 30 is driven by a driving force transmitted from the pulling-up device 14 by being connected to the support shaft 14e via a universal joint. The size of the front sprocket 31a is set so that the transport speed of the leaf b by the leaf discharge transport device 30 is faster than the transport speed of the leaf b by the cutting transport device 25.
[0027]
Therefore, the leaf discharging and conveying device 30 uses the endless chain 32 and the conveying guide to move the portion of the leaf portion b located closer to the leaf tip than the portion that the cutting and conveying device 25 receives and clamps from the positioning device 22 and the pulling-up device 14. It is inherited and pinched by the rail 33 and transported along the transport guide rail 33 in the rearward direction of the machine body, and slightly ahead of the portion transported by the cutting transport device 25 after being cut from the ginseng a by the rotary cutter 35. Then, the sheet is conveyed, released from being held slightly behind the cutting conveyance device 25, and dropped.
[0028]
Accordingly, the harvesting unit 10 is driven up and down around the axis P by the driving operation of the lift cylinder 5 for the swinging operation of the harvesting unit frame by the lift cylinder 5, and moves up and down with respect to the traveling machine body. Then, the weeding device 11 is located near the field and the soil release blade 15 is lowered to a work level at which the soil is released into the soil, or the weeder device 11 and the soil release blade 15 are raised to the non-work level at which the surface is lifted from the field. Then, when the traveling machine is run at the work level, the leaves b of the ginseng a to be harvested are separated from the leaves of the ginseng to be non-harvested by the weeding device 11 and are caused. The ginseng a, which has easily come off, is pulled out of the field by the pulling-up device 14 and supplied to the beard root cutting device 16 to remove the beard root. The ginseng a from which the beard root has been removed is further lifted and transported in a suspended state by the lifting device 14 and supplied to the leaf removing device 20. The positioning device 22 and the cutting transport device 25 of the leaf removing device 20 use the ginseng a. The ginseng a is supplied to the rotating cutter 35 to cut and remove the leaf b while preventing the ginseng a from hitting the rotating cutter 35, and the ginseng a from which the leaves b are removed is dropped to the transport start end side of the root vegetable conveyor 40. Supply. The discharged leaves separated from the ginseng a are conveyed to the rear of the cutter 35 by the cutting conveyance device 25 and the leaf discharge conveyance device 30 and dropped. At this time, as shown in FIG. 8, the base end side of the leaf discharge is transported by the cutting transport device 25, and the leaf tip side is transported by the leaf discharge transport device 30, and the leaf tip side precedes the proximal end side. As a result of being transported, the leaves are released in a slightly rearward position, which is located rearward toward the tip end, and falls in a state in which the leaves are not easily caught by the transport device. The leaves discharged from the transport devices 25 and 30 are dropped on a chute 38 whose base end is supported by a cover 37 that covers the periphery of the transport devices 25 and 30 and the cutter 35. Is lowered to the rear side of the machine, dropped from the chute 38 behind the root vegetable conveyor 40, and discharged to the field.
[0029]
As shown in FIGS. 15 and 16, the root vegetable conveyor 40 has a rear end supported by a pair of left and right brackets 6 erected at the rear end of the body frame 3 of the traveling machine via a conveyor drive shaft 41, In the pair of left and right conveyor frames 42 whose front ends are located below the positioning device 22 of the leaf removing device 20, between the front ends of the two conveyor frames 42, between the intermediate portions, and between the rear ends. The belt belt 43 is rotatably attached to each of the belt rollers 43, and the conveyor belt 44 is rotatably supported. The belt roller 43 on the rear end side has a roller support shaft 43a that supports the belt roller 43, and a roller support shaft 43a. The conveyor belt is driven by the conveyor drive shaft 41 via a gear mechanism having one end interlocked with one end of the conveyor drive shaft 41 to drive the conveyor belt 44. To have configured.
[0030]
Thus, when the leaf removing device 20 cuts the leaf b and drops the ginseng a from the cutting transport device 25, the root vegetable conveyor 40 receives the ginseng a at the transport start end side of the conveyor belt 44, and It is placed on the belt 44 and transported to the rear of the machine.
[0031]
As shown in FIGS. 2 and 15, a guide roller 57 is provided so as to be able to be driven above the conveying end of the conveyor belt 44 in the root vegetable conveyor 40. The guide roller 57 has a rotation axis that is inclined with respect to the conveying direction of the root vegetable conveyor 40, and the end located on the sorting conveyor 48 side is on the lower side of the root vegetable conveyor 40 than the opposite end. The ginseng a conveyed by the root vegetable conveyer 40 is guided from the root vegetable conveyer 40 to the laterally outward side of the root vegetable conveyer 40 and moved to the sorting conveyor 48 by the above-mentioned positioning posture and rotation.
[0032]
The sorting conveyor 48 is composed of a plurality of drivable rollers arranged in the lateral direction of the machine body. The ginseng a from the root vegetable conveyor 40 is provided with the operating unit 2 located at the lateral end side of the traveling machine body where the harvesting unit 10 is located. It is conveyed toward the end side and supplied to the collecting unit 50. The sorting conveyor 48 is located at the rear end of the traveling machine so that an operator can walk the rear side of the sorting conveyor 48 and perform sorting while moving following the machine. To be transported.
[0033]
The collecting section 50 places a container 54 such as a container, and sends the ginseng a to the container 54 by the sorting conveyor 48 to collect.
[0034]
The small carrier 51 is used, for example, for mounting an empty or carrot-collected container 54, and the traveling body is configured to be able to swing up and down around a body horizontal axis 51a disposed at one end. Is connected to the rear end of the body frame 3. That is, when the small carrier 51 is swung to the rear side of the machine body around the shaft center 51a and the mounting position is extended to the rear side of the collection unit 50, the small carrier 51 is in the use posture. When the free end side of the small carrier 51 is set in the mounting posture in which the small carrier 51 enters the collecting unit 50, the small carrier 51 is in the storage posture folded in the collecting unit 50.
[0035]
The large carrier 52 is used to mount an empty or carrot-collected container 54 or the like. It is connected to the lateral end of the body frame 3. That is, as shown in FIG. 17, one end of the reinforcing rod 52 b attached to the back side of the large carrier 52 by lowering and swinging the large carrier 52 around the axis 52 a is positioned on the lower surface of the lateral end of the body frame 3. When the mounting position is set to be abuttingly received and supported, the large loading platform 52 is used in such a manner that the loading surface 52c of the large loading platform 52c projects horizontally or almost horizontally to the lateral outside of the fuselage with respect to the recovery unit 50 and the containers 54 and the like can be loaded. become. When the large carrier 52 is swung up and down around the axis 52a to have a mounting posture extending upward from the carrier supporting portion of the body frame 3, the large carrier 52 is positioned more inside the machine than in the use posture. After retirement, the loading surface 52c is in a storage position along the vertical direction of the machine body on the lateral outside of the machine body with respect to the collection unit 50. In this case, the locking member extending from the traveling body side is locked to the large loading platform 52, and the large loading platform 52 is fixed in the storage position.
An auxiliary carrier 55 is connected to the rear end of the large carrier 52 via a connection link 55a. The auxiliary carrier 55 is swung toward the large carrier 52 by the rotation of the connecting link 55a with respect to the large carrier 52 and the auxiliary carrier 55, and is placed in the retracted state by being superimposed on the loading surface 52c. And is extended to the rear side from the large carrier 52 to be used.
[0036]
As shown in FIG. 15, the conveyor drive shaft 41 that attaches the left and right conveyor frames 42 of the root vegetable conveyor 40 to the left and right brackets 6 of the machine body frame 3 rotatably penetrates the left and right conveyor frames 42 and the bracket 6. By doing so, the root vegetable conveyor 40 swings up and down with respect to the traveling machine body around the machine body lateral axis 41a of the conveyor drive shaft 41 located on the transport end side.
[0037]
As shown in FIGS. 15 and 16, the root vegetable is connected by a link body whose upper end is rotatably connected to both ends of a support rod 45 that is connected to the left and right conveyor frames 42 at the transport start end side of the root vegetable conveyor 40. A pair of left and right legs 46 of the conveyor 40 are formed, and the distal end side is slidably inserted into an elongated hole 46a in the machine body vertical direction provided on each of the leg portions 46, and the base end side is fixedly fastened to the main frame 13a. The shaft member constitutes a conveyor lifting / lowering operation body 47a provided on the harvesting unit frame so as to move up and down with respect to the traveling machine together with the harvesting unit frame. The pair of left and right conveyor lifting / lowering operation bodies 47a and the pair of left and right legs An adjustment mechanism 47 that automatically links the root vegetable conveyor 40 up and down around the axis 43a in association with the lifting and lowering of the harvesting unit 10 with respect to the traveling machine body. Configure and Aru.
[0038]
In other words, as shown in FIG. 15 (a), when the harvesting unit 10 moves up and down in the low-level lifting area LH on the lower end side of the lifting area H in which the harvesting unit 10 can perform the lifting operation, each of the conveyor lifting and lowering operation bodies 47a is moved by the leg. Only the inside of the long hole 46a of the portion 46 is moved, and the lifting operation and the receiving support are not performed on the leg 46. The left and right legs 46 are mounted on the support portion 3a provided on the body frame 3 of the traveling body. The root starting conveyor 40 is supported and supported at a predetermined arrangement level by receiving and supporting the root starting conveyor 40. The root feeding conveyor 40 is supported by the legs 46 and supported by the bracket 6 of the machine frame 3 by the harvesting unit 10. Is maintained in a mounting posture for transporting ginseng a from the rear of the machine. As shown in FIG. 15 (b), when the harvesting unit 10 moves up and down in the high-level lifting area HH on the rising end side of the lower-level lifting area LH of the lifting area H, each conveyor lifting operation is performed. The body 47a is located at the upper end of the long hole 46a of the leg 46, and the root vegetable conveyor 40 is raised by pushing up the leg 46 for the lifting operation force by the lift cylinder 5, or the body is lowered by the lift cylinder 5. The root vegetable conveyor 40 is lowered by receiving and supporting the leg 46 for the lowering operation. As the low-level elevation area LH, an elevation area between a maximum height and a descending end which is set so that the harvesting unit 10 is lifted when a harvest operation is performed is set.
[0039]
Therefore, the adjusting mechanism 47 adjusts the root vegetable conveyor 40 as follows. That is, when the harvesting unit 10 is located in the low-level side elevating area LH, even if the harvesting unit 10 swings up and down, the root vegetable conveyor 40 swings up and down from the mounting position for transportation that does not hinder the ginseng transportation. When the harvesting unit 10 is positioned in the high-level ascending / descending area HH, if the harvesting unit 10 swings up and down, the root vegetable conveyer follows. Adjustment is made so that the upper and lower sides 40 swing vertically in the same direction as the elevating direction of the harvesting unit 10. Accordingly, when performing the harvesting operation, even if the weeding device 11, the soil loosening blade 15, and the pulling-up device 14 of the harvesting unit 10 are adjusted in height, the root vegetable conveyor 40 maintains the mounting posture for conveyance. It is possible to work while smoothly supplying the ginseng a from the harvesting unit 10 to the sorting conveyor 48. When traveling without harvesting work such as turning, when the harvesting unit 10 is raised, the root vegetable conveyor 40 is also raised, and the harvesting unit 10 can be lifted sufficiently high to travel.
[0040]
The transmission structures of the left and right device sections in the leaf discharge removing device 20 are configured as shown in FIGS. 6 and 7.
That is, the first rotary transmission shaft 21c driven by the one end of the transmission case 21 being linked with the input shaft 21a via the bevel gear 21b is connected to the input shaft 21a inside the transmission case 21 and the rotary cutter 35. The intermediate portion of the first rotary transmission shaft 21c is provided so as to be rotatable integrally with the first rotary transmission shaft 21c between the drive shaft 36 and the positioning device 22 or the transport device 25 for cutting. It is linked to the chain drive shaft 23c via a gear mechanism G1 composed of a bevel gear and a bevel gear rotatably attached to the drive shaft 23c of the positioning chain 24. An end of the first rotary transmission shaft 21c on the side opposite to the input side is bevelly mounted on the first rotary transmission shaft 21c so as to be rotatable integrally with the first rotary transmission shaft 21c, and is integrally rotatably mounted on the drive shaft 36 of the rotary cutter 35. It is linked to the cutter drive shaft 36 via a gear mechanism G2 including a bevel gear. One end of the second rotary transmission shaft 21e driven by the driving force from the first rotary transmission shaft 21c is linked to the cutter drive shaft 36 via a bevel gear 21d. And the drive shaft 28 of the endless transfer belt 27 of the cutting transfer device 25, which is disposed so as to rotate around the same axis as the first rotation transmission shaft 21 c. The other end of the belt drive shaft 21e is connected to the second rotation transmission shaft 21e via a gear mechanism G3 including a bevel gear integrally rotatably mounted on the second rotation transmission shaft 21e and a bevel gear integrally rotatable on the belt drive shaft 28. 28.
[0041]
As shown in FIGS. 10 and 11, the drive shaft 36 of the rotary cutter 35 is linked to the first and second rotary transmission shafts 21c and 21e via the gear mechanism G2 and the bevel gear 21d, and a transmission case. A rotary cylinder shaft 36a rotatably supported by the rotary shaft 21 and an inner end of the rotary cutter shaft 35a which is slidably fitted in the axial direction of the rotary cylinder shaft 36a. It is constituted by a cutter shaft 36b rotatably connected. The upper end portion 36c of the rotary cylinder shaft 36a is formed as a hexagonal cylinder shaft, and the upper end portion of the cutter support shaft 36b is formed as a hexagonal shaft that rotatably engages with the upper end portion 36c of the rotary cylinder shaft 36a. Thereby, the cutter support shaft 36b is connected so as to rotate integrally with the rotary cylinder shaft 36a. An adjusting screw shaft 81 having a distal end connected via a connector 80 to an end of the cutter support shaft 36b protruding downward from the transmission case 21 is supported by a support member whose base end is fixed to the transmission case 21. The adjusting mechanism is attached to the screw portion 82a on the distal end side of the rotary cutter 82 and adjusts the height of the rotary cutter 35 so as to adjust the cutting position of the leaf by the rotary cutter 35 by rotating the adjusting screw shaft 81. It is.
[0042]
That is, the connector 80 is attached to the end of the cutter support shaft 36b via the bearing 80a so as to be relatively rotated, and is engaged by the retaining bolt 83 or the like so as not to relatively move in the axial direction of the cutter support shaft 36b. Then, it is engaged with the support 82 so as to slide in the axial direction of the cutter support shaft 36b while being prevented from rotating by the locking portion 80b that enters the long hole. The distal end portion of the adjusting screw shaft 81 is mounted so as to rotate relative to the connecting member 80, and is engaged by a positioning nut 84 and a retaining ring so as to push and pull the connecting member 80. Thus, the operating tool 81a attached to the lower end of the adjusting screw shaft 81 is rotated. Then, the adjusting screw shaft 81 rotates in the normal rotation direction or the reverse rotation direction with respect to the support member 82, and the cutter support shaft 36b is slid upward or downward with respect to the rotary cylinder shaft 36a via the connecting member 80. I do. When the cutter support shaft 36b is raised with respect to the rotary cylinder shaft 36a, the rotary cutter 35 is raised together with the cutter support shaft 36b, and the mounting height of the rotary cutter 35 with respect to the transmission case 21 is increased. The height with respect to the positioning roller 24a becomes higher than before adjustment. When the cutter support shaft 36b is lowered with respect to the rotary cylinder shaft 36a, the rotary cutter 35 is lowered together with the cutter support shaft 36b, and the mounting height of the rotary cutter 35 with respect to the transmission case 21 is reduced. The height with respect to the positioning roller 24a becomes lower than before adjustment.
[0043]
A transmission structure for transmitting the driving force of the engine E to the traveling device 1, the harvesting unit 10, and both the conveyors 40 and 48 is configured as shown in FIGS.
[0044]
That is, the rotational driving force of the output pulley 64 of the engine E is transmitted by the transmission belt 65 to the input pulley 67a of the hydrostatic continuously variable transmission 67 which is the main transmission section of the traveling mission 66, and the continuously variable transmission The left and right traveling output shafts 66a of the traveling mission 66 interlocked with the output section 67 via the auxiliary transmission and the steering clutch are connected to the crawler drive sprockets of the left and right traveling devices 1.
[0045]
The output of the continuously variable transmission 67 of the traveling mission 66 is linked to the output of the continuously variable transmission 67, and the rotational driving force of the work output pulley 66b that is shifted by the continuously variable transmission 67 in synchronization with the traveling device 1 is transmitted to the transmission belt 68. As a result, the power is transmitted to the inner end of the intermediate transmission shaft 69 penetrating the mounting cylinder 13b of the harvester frame, and the transmission belt 70 transmits the power from the outer end of the intermediate transmission shaft 69 to the transmission belt 70. The power is transmitted to a transmission shaft 60a provided inside the case 60, and from the transmission shaft 60a, the belt drive chain 14c of the left device portion of the pulling-up device 14 is driven by a transmission shaft 61a provided inside the left pulling-up transmission case 61. In addition, the belt drive chain 14c of the right device of the pulling device 14 is driven by a transmission shaft 61a provided inside the right pulling and raising transmission case 61. It is to reach. The transmission of the weeding transmission case 62 from the transmission shaft 61a of the pull-up transmission case 61 to the weeding device of the right weeding device 11 by a transmission shaft 62a provided inside the weeding transmission case 62. A shaft 62a and a transmission shaft 63a provided inside the transmission case 63 transmit the rotation to the weeding inducing device of the left weeding device 11, respectively. The driving force of the belt drive chain 14c of the left device of the pulling device 14 is transmitted to the input shaft 21a of the left transmission case 21 of the leaf removing device 20, and the belt drive chain of the right device of the pull device 14 is removed. The driving force 14c is transmitted to the input shaft 21a of the right transmission case 21 of the leaf removing device 20. The driving force of the belt drive chain 14c on the left side of the pulling-up device 14 is transmitted to the chain driving sprocket 31a of the leaf feeding and conveying device 30.
[0046]
The rotational driving force of the output pulley 64 of the engine E is transmitted to one end of a first intermediate transmission shaft 72 by a transmission belt 71, and the second intermediate transmission shaft is transmitted by the transmission belt 73 from the other end of the first intermediate transmission shaft 72. 74 to one end. The driving force of the second intermediate transmission shaft 74 is transmitted to an input pulley 76a of a reduction gear 76 composed of a worm and a worm wheel by a transmission belt 75 wound around one end of the second intermediate transmission shaft 74. The rotational driving force of the output sprocket 76b of the reduction gear 76 is transmitted to the driving sprocket 48a of the sorting conveyor 48 by the transmission chain 77. The rotation driving force of the second intermediate transmission shaft 74 is transmitted to the conveyor drive shaft 41 of the root vegetable conveyor 40 by a transmission chain 78 wound around the end of the second intermediate transmission shaft 74 opposite to the input side. At the same time, the power is transmitted to the input sprocket 79a of the branch transmission mechanism 79. The driving force of the output sprocket 79b of the branch transmission mechanism 79 is transmitted to the guide roller 57 by a transmission chain 57a.
[0047]
[Another embodiment]
The present invention can be applied to a harvester for harvesting various crops such as radishes and onions in addition to ginseng. These ginsengs, radishes, onions and the like are collectively referred to as root vegetables.
[0048]
An endless belt or the like may be employed in place of the positioning chain 24, and the chain 24, the endless belt, and the like may be collectively referred to as a positioning endless rotating strip.
[Brief description of the drawings]
FIG. 1 is a side view of an entire riding ginseng harvester.
FIG. 2 is a plan view of the entire riding ginseng harvester.
FIG. 3 Transmission system diagram
FIG. 4 Transmission system diagram
FIG. 5 is a plan view of a transmission structure.
FIG. 6 is a side view of the leaf removing device and the leaf discharging and conveying device.
FIG. 7 is a plan view of a transmission case of the leaf removing device.
FIG. 8 is an explanatory view showing a discharge state of leaf discharge.
FIG. 9 is a plan view of the leaf discharging and conveying device.
FIG. 10 is a sectional view of a rotary cutter mounting structure.
FIG. 11 is a plan view showing the engagement between the connector and the support.
FIG. 12 is a sectional view of a positioning device.
FIG. 13 is a cross-sectional view of a positioning device, a cutting transport device, and a leaf discharge transport device.
FIG. 14 is a plan view of a part of the positioning chain.
FIG. 15 is a side view of a root vegetable conveyor.
FIG. 16 is a front view of an adjustment mechanism.
FIG. 17 is an explanatory diagram showing a change in the attitude of the carrier.
[Explanation of symbols]
21d gear mechanism
23c Positioning endless rotating belt-shaped drive shaft
24 positioning endless rotating belt
27 Endless conveyor belt for cutting
28 Drive shaft of endless conveyor belt for cutting
35 rotating cutter
36 Rotary cutter drive shaft
36a Rotating cylinder shaft
36b Cutter support shaft
a root vegetable
b leaf
G1, G2, G3 gear mechanism

Claims (1)

An endless transport belt for cutting, which feeds the root vegetable lifted from the field in a suspended posture and supplies it to the rotary cutter for leaf cutting, and positions the root vegetable relative to the rotary cutter when the root vegetable is supplied to the rotary cutter. and a positioning endless rotating strip abutting acting on root vegetables in order to perform,
A rotatable rotary transmission shaft is provided below the cutting endless transport belt in parallel with the transport direction of the cutting endless transport belt, and the rotary transmission shaft is provided with the cutting endless transport belt, the positioning endless rotating belt, A leaf removing device for a root crop harvester that is linked to a drive shaft of each of the rotary cutters via a gear mechanism,
A rotary transmission shaft interlocked with a drive shaft of each of the positioning endless rotary belt-shaped body and the rotary cutter via a bevel gear mechanism as the rotary transmission shaft; and a drive shaft of the rotary cutter and the endless transport belt for cutting. A rotation transmission shaft interlocked with a bevel gear mechanism is disposed so as to rotate around the same axis, and a drive shaft of the rotary cutter is provided with a bevel gear mechanism on both of the rotation transmission shafts. A rotary cylinder shaft interlocked with the rotary cutter shaft, the rotary cutter shaft being integrally rotatably engaged with the rotary cylinder shaft, and slidably adjusted in the axial direction of the rotary cylinder shaft, and the rotary cutter; A leaf removing device for a root crop harvesting machine, which is constituted by a cutter shaft connected to a rotatable unit with the cutter.

Images