JP2010035440A - Grass-dividing apparatus of working vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grass-dividing apparatus of a working vehicle, which guides stem and leaf parts of crops entangling during separation and prevents crops from being pulled out of a field by mistake. <P>SOLUTION: The grass-dividing apparatus of working vehicle comprises a plurality of bar-like or tubular rotary separation bodies 41c and 41c that are rotatable around the shaft center in the length direction arranged at the front side position of the traveling apparatus 3 of the working vehicle 1 of a tractor, etc., in an inclined position higher in the rear with enlarging the right and left interval of the rotary separation bodies 41c and 41c each other toward the rear part side. The rotary separation bodies 41c and 41c are integrated and attached vertically rotatably to the working vehicle 1. The grass-dividing apparatus of working vehicle is equipped with a ground-engaging wheel 31c for installing and supporting the rotary separation bodies 41c and 41c and a mounting fixture 41d for detachably attaching the plurality of the rotary separation bodies 41c and 41c to the side of the working vehicle 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a weeding device that attaches to a work vehicle and separates the foliage of a crop.

In a work vehicle that harvests crops such as leeks, a pair of left and right weed boards are projected forward from the gate frame on the front side of the aircraft, and this weed board is configured to extend left and right toward the rear, What extracts and guides the foliage part of crops, such as a leek, to a conveyance apparatus is well-known.
JP 2004-267163 A

  Since the weed board of the background art is fixed, the foliage part of the crop that is guided while weeding has a problem that it adheres to and gets entangled with this weed board and pulls out the crop itself. Therefore, the present invention is intended to solve such a problem.

  According to the first aspect of the present invention, a plurality of rod-shaped or cylindrical rotary weed bodies (41c, 41c) that are rotatable about a longitudinal axis are used as a traveling device (3) for a work vehicle (1) such as a tractor. The front-side position of the plurality of rotary weed bodies (41c, 41c) is increased in the rear-side direction so as to be provided in a rear-upward inclined posture. .

  According to the said structure, the foliage part of the crop to be weed | abuts contact | abuts to the several rotation-type herbaceous bodies (41c, 41c) of a rod-shaped and cylindrical shape which can be rotated, 41c, 41c) is smoothly sprouted to the left and right sides.

  In the invention of claim 2, the plurality of rotary weed bodies (41c, 41c) are integrated and attached to the work vehicle (1) so as to be rotatable up and down, and the plurality of rotary weed bodies (41c, 41c). 2. A weeding device for a work vehicle according to claim 1, further comprising a support wheel (31c) for installing and supporting the vehicle.

  According to the above configuration, the rotary weed bodies (41c, 41c) are grounded and supported by the ground ring (31c) so that the rotary weed bodies (41c, 41c) have an optimum height according to the unevenness of the field scene. It can weed the foliage of crops.

  According to a third aspect of the present invention, there is provided a mounting tool (41d) for detachably attaching the plurality of rotary weed bodies (41c, 41c) to the work vehicle (1) side. Weeding device for work vehicles.

  According to the said structure, according to work conditions, a rotary type weed body (41c, 41c) can be easily attached or detached to a work vehicle (1) now.

  According to the invention of claim 1, the foliage part of the crop is divided into the left and right sides by the rotatable rotary herbaceous body (41 c, 41 c) so that the foliage part of the crop is present on the rotary herbaceous body (41 c, 41 c). Entanglement can be prevented, and problems such as pulling out crops are eliminated, and work efficiency can be improved.

  According to the second aspect of the present invention, in addition to the effect of the first aspect of the invention, the rotary weed bodies (41c, 41c) are grounded and supported by the ground ring (31e), thereby following the unevenness of the field scene. As a result, weeds can be reliably weeded and the work efficiency is improved.

  According to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, the rotary herbaceous body (41c, 41c) can be easily attached and detached by operating the wearing tool (41d), so that the crop Work according to work conditions such as varieties and harvesting time, and work efficiency is improved.

Hereinafter, the form which mounted this invention on the agricultural tractor is demonstrated based on drawing.
Left and right front wheels 3 and 3 and left and right rear wheels 4 and 4 are provided on the front and rear of the body frame 2 of the agricultural tractor 1, and an engine (not shown) is mounted on the front side of the body frame 2 and covered with a bonnet 5. The left and right front wheels 3, 3, left and right rear wheels 4, 4 and the PTO shaft (via a hydrostatic continuously variable transmission (not shown) and a gear type auxiliary transmission (not shown) in the transmission case 6) (Not shown). A steering handle 9 is provided by extending a handle post 8 upward from the rear side of the bonnet 5 of the body frame 2, and a cockpit 10 is provided behind the steering handle 9. A main transmission lever, a sub-transmission lever, an accelerator lever, etc. for continuously variable transmission shifting are provided on the left and right sides of the handle post 8, and an elevating lever 14 for elevating the work implement is provided on the left side of the cockpit 10. A floor 15 on which the operator puts his / her foot is provided on the mission case 6, and left and right brake pedals and clutch pedals are provided on the floor 15.

  A work implement lifting device 21 is provided at the rear portion of the vehicle body frame 2 so as to be lifted and lowered by a hydraulic cylinder (not shown), and for example, an onion harvesting device 22 is connected to the work implement lifting device 21. The onion harvesting machine 22 includes a transmission case 22a to which power is transmitted from the PTO shaft, and a cutting blade 22b that digs up an onion to be vegetated in a farm, which is disposed in front of the onion harvesting device 22 and below the transmission case 22a. A swinging conveyor 22c that transports the onion dug up by the digging blade 22b while swinging, and an onion discharged from the end of transporting of the swinging conveyor 22c. A discharge conveyor 22d that discharges and conveys the onion toward either the left or right side, a transmission device 22e that transmits the power of the transmission case 22a to the swinging conveyor 22c and the discharge conveyor 22d, and the like.

  According to the above configuration, when the onion harvesting device 22 is advanced along the ridge, the onion is dug up from the field by the digging blade 22b on the front side of the onion harvesting device 22, and the oscillating conveyance on the rear side of the digging blade 22b is performed. Since the onion is transported to the upper rear side while the attached mud is dropped by the conveyor 22c, it is not necessary to remove the mud from the collected crop, and the labor of the operator is reduced. In addition, in order to preserve the onion that has been dug up, if the onion is left in the field and dried by sunlight or wind, the mud does not interfere with the drying of the onion, and the onion is efficiently dried and the product value is improved. To do.

  Then, it is supplied to the left and right sides of the discharge conveyor 22d discharged from the transfer end of the swing transfer conveyor 22c, and is conveyed to the left and right other sides by the discharge conveyor 22d and discharged together in a row. The onion can be efficiently recovered by the dozer body and other recovery means attached to the agricultural tractor 1 along the row.

  FIG. 2 shows an onion root cutting device 23 that cuts the root portion of the onion before harvesting in the soil in order to adjust the harvest time. This onion cutting device 23 is provided with left and right support wheels 23i and 23i for traveling in the field on both the left and right sides of the harvesting frame 23h so that the left and right support wheels 23i and 23i are in front of the left and right support wheels 23i and 23i. Left and right cutting wheels 23j, 23j for cutting onions, weeds and the like that have entered the intercostal space are rotatably provided on the front side, and root cutting blades 23k for cutting the onion roots are provided at the rear of the harvesting frame 23h. Left and right guide devices 23m and 23m for gathering the onion on top of the left and right sides of the root cutting blade 23k are provided over the direction, and the rear side is inclined toward the center in plan view. Yes.

  According to the above configuration, when the onion root cutting device 23 is advanced along the reed, the left and right cutting wheels 23j, 23j cut off the weeds that grow between the reeds of the onion and the reeds from the other reeds. Since the left and right support wheels 23i, 23i pass thereafter, it is possible to prevent the foliage and weeds of the onion from being entangled with the left and right support wheels 23i, 23i at the rear of the left and right cutting wheels 23j, 23j. It is prevented that the onions before harvesting are pulled out by pulling the foliage part entangled with 23i, the product value is improved, and the rotation of the left and right support wheels 23i, 23i is hindered by the entangled foliage part and weeds, etc. It is prevented that the forward movement of the tractor 1 is prevented, and the work efficiency is improved.

  In addition, the root cutting blade 23k of the onion root cutting device 23 can cut the root portion of the onion in the soil without digging up the onion, so that the optimum harvest time of the onion is controlled to increase the product value as much as possible. It becomes possible to do.

  And the left and right guide devices 23m and 23m bury the onion in the soil until the time of excavation and harvesting by bringing the onion of the heel end that was close to the ridge during the root cutting work toward the center of the ridge. Since the onion can be prevented from protruding from the straw, the onion at the optimal harvest time can be harvested without damaging the harvesting means such as the onion harvesting device 23, and the commercial value of the onion is improved. To do.

  Next, a working state in which the onion harvesting device 22 or the onion root cutting device 23, the left and right front partial grass baskets 31, 31 and the left and right rear wheel partial grass bodies 24, 24 are mounted will be described with reference to FIGS.

  An onion harvester 22 or an onion root cutting device 23 is provided at the rear of the agricultural tractor 1, left and right rear wheel partial grasses 24, 24 are provided in front of the left and right rear wheels 4, 4, and left and right front wheels 3, 3 are in front of the left and right Front part grass baskets 31, 31 are provided.

  Left and right intermediate frames 25 extend from the lower part of the mission case 6 to the left and right, and left and right rear wheel partial grasses 24 and 24 are attached to a lifting arm 26 that is provided on the left and right intermediate frame 25 so as to be movable up and down. The left and right rear wheel partial grass bodies 24, 24 are configured such that left and right front partial grass plates 24a, 24a having a predetermined height are inclined on the front side so that the rear side is inclined to the left and right sides in a plan view. The left and right rear partial grass rods 24b, 24b are connected to each other along the right and left rear wheels, and the rear side portions of the left and right rear rear wheel rods 24b, 24b are connected to the left and right rear wheels 4, 4 respectively. It extends to both the left and right sides.

  According to the above configuration, when the front sides of the left and right rear wheels 4 and 4 are advanced while the left and right rear wheel partial grasses 24 and 24 are grounded, the stems and leaves of the onion that has fallen between the traps and the onions are left and right. , 4 is guided to the left and right sides of the left and right, so that the left and right rear wheels 4 and 4 can prevent the onion stems and leaves and the onion from being crushed, so that the harvesting and weeding operations can be performed smoothly and quickly. Harvest number is maintained.

Next, the left and right front partial weeds 31 and 31 will be specifically described with reference to FIGS.
The left and right front axles 3a and 3a of the left and right front wheels 3 and 3 are pivotally supported by rear portions of left and right support arms 32 and 32 bent in an L shape in plan view, and the front side portions of the left and right support arms 32 and 32 are provided. It is configured to be vertically rotatable along the front outer peripheral surface of the left and right front wheels 3 and 3. The left and right front partial grass blades 31, 31 are detachably attached to the front end portions of the left and right support arms 32, 32 with fixing members such as bolts and nuts.

  A lower weed frame 31a is provided with a weed frame 31a. The weed frame 31a has a protrusion at the front end, and expands to the left and right sides in the plan view and expands upward in the side view. The front partial grass 31b, which is composed of a plate and has a wider weeding action surface toward the rear side, is fixed. A rear part grass guide 31c made up of a large number of rod-like bodies that extend to the left and right is also fixed to the rear part of the left and right front part grass body 31b, and the rear part of the weed frame 31a is fixed to the front side part of the support arm 32. Is detachably fixed with bolts and nuts.

  Further, as shown in FIG. 6, the left and right wheel support arms 31d and 31d are pivotally supported on the rear side upper part of the weed frame 31a so as to be adjustable in the vertical direction. The weed gauge foil 31e is provided on the front side so as to be positioned inside the front part grass body 31b and is rotatable, and the lower end parts of the left and right front part grass baskets 31 and 31 are supported by the weed gauge foil 31e so as to be slightly lifted. It is the structure to do.

  5 and 6, the front hitch 33 attached to the front lower portion of the agricultural tractor 1 supports a lifting arm 37 so as to be pivotable in the vertical direction of the machine body, and the front end of the left and right support arms 32, 32. Left and right elevating wires 34 are connected between the upper and lower elevating arms 37 of the front hitch 33, and intermediate portions of the left and right elevating wires 34 are wound around left and right pulleys 36 and 36 attached to left and right front wheel cases 35 and 35, respectively. I support it. Then, as shown in FIG. 6, when the lifting arm 37 is rotated downward, the left and right front partial grass cages 31 and 31 are lowered to the weeding position, and the lifting arm 37 is rotated so as to protrude forward. The left and right front partial grass baskets 31 and 31 are configured to rise to the non-weeding position.

Next, the auxiliary weeding device 41 will be described with reference to FIGS.
The auxiliary weeding device 41 is attached to the left and right front partial grass baskets 31 and 31 as necessary to improve the weeding performance. By attaching or removing the auxiliary weeding device 41 according to the working conditions, Since the optimum work can be performed, work efficiency is improved.

  The auxiliary weeding device 41 includes an auxiliary weeding frame 41a that is long in the front-rear direction and a front end that is attached to the front end of the auxiliary weeding frame 41a. The front auxiliary weed body 41b having a wide weeding surface and the front and rear sides of the auxiliary weed frame 41a and the front auxiliary weed body 41b are supported so as to be rotatable around the axial center line via bearings, and the rear side. Left and right weed rollers 41c and 41c arranged so that the distance between them is wide; and a locking buckle 41d provided at a substantially intermediate position in the left and right direction of the left and right weed rollers 41c and 41c on the rear side of the auxiliary weed frame 41a; Consists of.

  Then, the auxiliary weeding frame 41a of the auxiliary weeding device 41 is placed on the upper side of the left and right front partial grass baskets 31, 31, and the front end auxiliary weed portion 41b is fitted and attached to the front end portion of the front partial grass body 31b. The left and right weed rollers 41c and 41c are placed along the guide surface that extends to the left and right and upwards toward the rear side of the front part grass body 31b, and the auxiliary weed frame 41a is detachably fixed to the weed frame 31a by a locking buckle 41d. To do.

  When only the left and right front part grass baskets 31 and 31 are configured, the onion stems and leaves are not well separated on the left and right sides, but entangled with the left and right front part grass baskets 31 and 31, and the onion is pulled out.

  However, according to the above configuration, when the left and right front partial grass pods 31, 31 equipped with the auxiliary weeding device 41 are advanced along the cocoon, the onion foliage caused by the tip auxiliary weeding portion 41 b The left and right weed rollers 41c and 41c are guided to the left and right sides along the guide surfaces that extend to the left and right and upward as the rear side of the left and right weed rollers 41c and 41c. Since the left and right weed rollers 41c and 41c are rotated about the axis by the foliage of the onion that slides relatively rearward, the foliage can be guided while weeding smoothly to the left and right sides. Further, it is possible to prevent the left and right weed rollers 41c and 41c from being wound.

  Further, by attaching left and right auxiliary weeding devices 41 and 41 to the left and right front partial weeds 31 and 31 attached to the left and right front axles 3a and 3a of the left and right front wheels 3 and 3, the steering direction of the left and right front wheels 3 and 3 is determined. Since the weeding direction can be changed by moving it to the position, weeding work following the ridge can be performed smoothly, and the work efficiency is improved.

  Furthermore, since the left and right front partial grass baskets 31 and 31 are supported by the right and left weed gauge wheels 31e and 31e, the left and right front partial grass baskets 31 and 31 can be moved up and down following the unevenness of the field. The onion can be weeded without leaving the stems and leaves, and the work efficiency is improved.

  Then, the auxiliary weeding device 41 can be detached from the weed culm 31 by operating the locking buckle 41d, so that the onion root cutting device 23 cuts the root part of the onion when harvesting the onion of the early-growing variety or the onion root cutting device 23. In other words, when the onion foliage is fresh and strong, the auxiliary weeding device 41 is attached, so that the onion foliage entangled with the weed pod 31 or the auxiliary weeding device 41 is left and right. Since the rollers 41c and 41c can guide the left and right sides of the weed basket 31, it is prevented that the weed basket 31 pulls out the onion entangled with the stem and leaves from the field, and the commercial value of the onion is maintained. Can do.

  On the contrary, when harvesting onions that have been cut off at the roots and left to the appropriate harvest time, or onion varieties, that is, when the onion stems and leaves are dying and fragile, the auxiliary weeding device 41 is removed to remove the agricultural tractor 1. Since the front and rear width of the head can be shortened, the headland work and the turning work at the end of the field are facilitated, and the work efficiency is improved.

Next, a configuration for forcibly rotating the left and right weed rollers 41c and 41c of the auxiliary weeding device 41 will be described with reference to FIG.
On the upper rear side of the weed frame 31a, the rear end portions of the left and right wheel support arms 31d and 31d are pivotally supported by a left and right axis so that the up and down adjustment is possible. The wheel 31e is provided so as to be located behind the front part grass body 31b, and the lower end portions of the left and right front part grass baskets 31 and 31 are supported by the weed gauge wheel 31e so as to be slightly lifted.

  A roller driving device 43 is detachably attached to the rear side portion of the auxiliary weeding frame 41a of the auxiliary weeding device 41. The roller driving device 43 is removably attached to the rear portion of the auxiliary weeding frame 41a, and rotates around an axis that is inclined so that the left and right sides of the driving frame 43a are rearward in plan view. The left and right drive wheel bodies 43b and 43b are pivoted like this.

  The lower portions of the left and right drive wheels 43b, 43b are brought into contact with the upper surface of the weed gauge wheel 31e, and the upper portions of the left and right drive wheels 43b, 43b are placed on the left and right weed rollers 41c, 41c on the auxiliary weeding device 41 side. It is comprised so that the lower side part may be contacted.

  According to the said structure, when the front part grass 31 and the auxiliary weeding device 41 move forward and the weed gauge wheel 31e rotates, the contacting left and right driving wheels 43b and 43b rotate and the left and right weed rollers 41c, The upper side of 41c rotates toward the left and right sides.

  Therefore, by forcibly rotating the left and right weed rollers 41c and 41c of the auxiliary weeding device 41, the onion foliage can be forcibly moved to the left and right sides, so that the onion to the left and right weed rollers 41c and 41c The entanglement of the foliage is prevented, and the separation of the foliage can be promoted more smoothly.

Next, based on FIG.11 and FIG.12, the vertical rocking | fluctuation structure of the left and right weeding rollers 41c and 41c in the auxiliary weeding device 41 is demonstrated.
On the upper rear side of the weed frame 31a, the rear end portions of the left and right wheel support arms 31d and 31d are pivotally supported by a left and right axis so that the up and down adjustment is possible. The wheel 31e is provided so as to be located behind the front part grass body 31b, and the lower end portions of the left and right front part grass baskets 31 and 31 are supported by the weed gauge wheel 31e so as to be slightly lifted.

  A concave support 41e provided at the front end of the front auxiliary weed body 41b is fitted and supported on the ball-shaped support 31f on the front partial grass 31 side from above, and the auxiliary weed frame 41a and the left and right weed rollers 41c, 41c are supported. The roller swing device 45 is detachably attached to the rear side portion of the auxiliary weeding frame 41a.

  The roller swinging device 45 includes a support rod 45a that is adjustable in length and supported by the rear portion of the auxiliary weed frame 41a, and a swinging device in which a middle portion in the front-rear direction is pivotally supported by the lower end portion of the support rod 45a. A frame 45b, an eccentric roller 45c pivotally supported on the rear side of the swing frame 45b and in contact with the rear side of the weed gauge wheel 31e, and left and right sides on the front left and right sides of the swing frame 45b The left and right front arms 45d and 45d, the middle part of which is axially supported along the left and right sides of the left and right front arms 45d and 45d. Left and right rollers 45e, 45e that contact the lower side of 41c, torque springs 45f, 45f that press and urge left and right rollers 45e, 45e against left and right weed rollers 41c, 41c, Arm 45d, the length adjustable lateral control rod 45g for connecting the intermediate portion of the inner end and the swing frame 45b of the 45d, the 45g, are more configurations.

  According to the above configuration, when the weed gauge wheel 31e rotates, the eccentric roller 45c rotates and swings up and down with the middle part in the front-rear direction of the swing frame 45b as a fulcrum, and the left and right rollers 45e and 45e also respond to the vertical swing. The left and right weed rollers 41c and 41c also swing up and down. Accordingly, the onion stems and leaves can be weeded while being swung up and down by the left and right rollers 45e and 45e, and there is little entanglement, separation is smooth, weeding speed is increased, and work efficiency can be increased.

A side view of a tractor equipped with an onion collection device. A side view of a tractor equipped with an onion root cutting device. The side view of the tractor equipped with the onion collection device and the rear wheel partial grass. A side view of a tractor equipped with an onion root cutting device and a rear wheel partial grass body. The perspective view of the front part Kusanagi. FIG. FIG. (A) The side view of a front part weed and an auxiliary weeding device.

(B) The top view of a front part weed and an auxiliary weeding device.
(A) Side view of auxiliary weeding device. (B) The top view of an auxiliary weeding device. The side view and top view of an auxiliary weeding device. The side view and top view of an auxiliary weeding device. The top view of a roller up-down movement apparatus.

Explanation of symbols

1 Agricultural tractor (work vehicle)
3 Traveling devices (front wheels)
3a Axle part 31 Weeding rod 31a Weeding frame 31b Front part grass body 31c Rear part grass guide 31d Wheel support arm 31e Weeding gauge wheel (grounding wheel)
32 Support arm 41 Auxiliary weeding device (weeding device)
41a auxiliary weed frame 41b tip auxiliary weed body 41c weed roller (rotary weed body)
41d Locking buckle (equipment)

Claims (3)

  A plurality of rod-shaped or cylindrical rotary weed bodies (41c, 41c) that are rotatable about the longitudinal axis are placed at the front side of the traveling device (3) of the work vehicle (1) such as a tractor. A weeding device for a working vehicle, characterized in that a plurality of rotary weeding bodies (41c, 41c) are provided in a rear-upward inclined posture by increasing a left-right distance between the rear portions.   The plurality of rotary weed bodies (41c, 41c) are integrated and attached to the work vehicle (1) so as to be rotatable up and down, and a grounding wheel for installing and supporting the plurality of rotary weed bodies (41c, 41c) ( 31. The weeding device for a work vehicle according to claim 1, wherein 31c) is provided.   The weed for a work vehicle according to claim 1 or 2, further comprising a mounting tool (41d) for detachably attaching the plurality of rotary weed bodies (41c, 41c) to the work vehicle (1) side. apparatus.

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