JP2011234625A - Reaping machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reaping machine, which can be used for an ordinary mowing work and a work for reaping the foliage of crops planted on ridges by a simple exchange of components and carry out the works accurately.SOLUTION: The reaping machine comprises: a reaping part 5 for carrying out a reaping work; side plates 53 supporting both ends of a rotary shaft 50 of the reaping part and extending in parallel with a traveling direction of a tractor; gage wheels 6 disposed behind the reaping part 5; and a foliage guidance rods 7 with the tips thereof placed forward and downward from the rotation outer circumferences of reaping blades 51 of the reaping part and inclined so as to be upward toward the rear from the tips in side view, and with the rear ends thereof placed in the inside of the rotation outer circumferences of the reaping blades 51. The foliage guidance rods 7 are attached to the right and left side plates 53 of the reaping part 5 in a detachable way.

Description

  The present invention relates to an agricultural machine that is attached to a tractor and performs grass and foliage cutting work.

  As conventional techniques of this type of reaping device, Japanese Patent Laid-Open No. 2005-13041 (Prior Art 1), Japanese Utility Model Laid-Open No. 58-91228 (Prior Art 2), and Japanese Unexamined Patent Application Publication No. 2009-89660 (Prior Art 3). Is disclosed.

  Japanese Patent Laid-Open No. 2005-13041 (Prior Art 1) states that “a working machine body that cuts the foliage on the field while moving in the traveling direction by running of the running means, and the working machine body that is separated from the running means And a foliage derivative that guides the foliage part so that the foliage part is positioned in a front region in the advancing direction of the work implement body in plan view. "Agricultural working machine" is disclosed.

  Further, Japanese Utility Model Publication No. 58-91228 (Prior Art 2) states that "a rotary type vine cutting device that chops a vine portion on a vine while moving along a cultivation pod such as a sweet potato, and this vine cutting device. A pair of hook-shaped dividers that are attached to project forward on both left and right sides of the frame and pull up the vines extending from the flanges to the grooves on both sides thereof, and the dividers adjust the intervals. In addition, there is disclosed a “vinegar processing apparatus such as sweet potatoes” which is configured to be capable of being adjusted in accordance with the height and width of the cultivated rice cake while allowing adjustment of vertical movement.

  Further, JP 2009-89660 A (Prior Art 3) states that “the machine body, a first cutting claw that is rotatably provided on the machine body and is detachable with respect to a plurality of nail attachment portions, and the claw A second cutting claw that is attachable to and detachable from the attached portion and has a rotation diameter smaller than the rotation diameter of the first cutting claw, and a weight corresponding to a difference in weight between the first cutting claw and the second cutting claw. A balance weight, and the first cutting claw is attached to the claw attachment portion of the rotary shaft body during mowing work, and the nail attachment portion of the rotary shaft body is attached to the foliage processing operation. The flail mower is disclosed, in which the first cutting claw is attached, and the second claw and the balance weight are attached to the other claw attachment portion of the rotating shaft.

JP-A-2005-13041 (Prior Art 1) Japanese Utility Model Publication No. 58-91228 (prior art 2) JP 2009-89660 A (Prior Art 3)

  In the case of a mower used by being attached to the rear part of a tractor, it has a dedicated structure depending on the work to be used, for example, harvesting vine-like crops planted in a cocoon or crops with foliage and cutting weeds etc. Since each of them is provided exclusively and requires a respective work machine, there is a problem that the user needs a large financial burden. In addition, when cutting and crushing the foliage and vines of crops planted on the reeds, the foliage and vines that have fallen into the recesses between the reeds are appropriately guided to the reclaimed part and crushed appropriately. There is a problem that cannot be ignored.

  The structure of the prior art 1 or the prior art 2 is a structure provided with a foliage derivative or a divider for guiding the stalks and leaves of the reeds and long foliage to the cutting part, and the foliage of the crop planted in the reeds It is a working machine dedicated to processing and is not intended for normal mowing work. In addition, in the case of the prior art 3, the purpose is to provide a flail mower that not only can perform normal mowing work but also can prevent the occurrence of vibrations and can perform foliage treatment work with high accuracy. It is necessary to replace the balance weight and there is a problem to change it easily, and it is an appropriate structure to properly guide and cut the foliage of the recess when the height of the cocoon is high Absent.

  For this reason, an object of the present invention is to provide a mowing machine capable of performing both normal mowing work and stalk-and-leaf cutting work of crops planted on the ridge by simple parts switching, and each capable of performing highly accurate work. For the purpose.

  In order to solve the above-mentioned problems, a plurality of cutting blades are provided in a swingable manner on a horizontal rotating shaft perpendicular to the traveling direction of the tractor and mounted on the rear portion of the tractor so as to be swingable. In a mowing machine having a mowing part that rotates and mows, a side plate that supports both ends of the rotating shaft and extends in parallel with the traveling direction of the tractor, and a gauge wheel disposed behind the mowing part, A foliage guide rod provided with a tip portion positioned forward and downward from the cutting blade rotation outer periphery of the cutting portion, inclined from the tip portion to the rear side view and a rear end portion positioned inside the cutting blade rotation outer periphery. Proposed is a cutting machine in which the foliage guide rod is attached to and detached from the left and right side plates of the cutting unit. Further, the holder for attaching the stand for holding the machine body at the time of work is provided on the left and right side plates of the pair of left and right cutting parts, and the foliage guide rods can be detachably attached to the holders for attaching the pair of left and right stands, respectively. A mowing machine is proposed. Further, the foliage guide rod has a substantially symmetrical shape in plan view, and a main foliage guide rod extending from the tip portion in a rearward direction in the direction of the cutting blade parallel to the traveling direction, and from the tip portion to the side. A lateral foliage guiding part inclined backward, a flat planar guiding part connecting the main foliage guiding ridge and the lateral foliage guiding part, and a cutting part located between the main foliage guiding ridge and the side plate in a front view. Proposed is the above-mentioned mowing machine having a vertical guide rod standing in front of the front end of the left right plate.

  According to the present invention, the foliage guide rod is attached to and removed from the left and right side plates of the cutting portion so that it can be easily removed and removed during normal mowing, and the foliage such as the reed is cut and cut. In this case, it is possible to perform cutting work with high accuracy by mounting. In addition, since the foliage guide rod can be detachably attached to the holder for attaching each stand, a dedicated attachment member is not necessary, which can contribute to reduction of production costs. In addition, the foliage that has fallen into the recess of the reed is appropriately guided to the cutting part by the foliage reed composed of the main foliage induction reed, the lateral foliage induction part, the flat planar induction part, and the vertical induction reed. Can be cut and crushed.

  Furthermore, since there is no holding part for the foliage guide rod behind the cutting part, it does not hinder the discharge of the cuttings and leaves cut and crushed by this, and there is a problem such as clogging even when the processing amount of foliage is large. Can be avoided.

Side view of a mowing machine according to the present invention Front view of a mowing machine according to the present invention The top view of the mowing machine which implemented this invention The side view which carried out the cross section of a part of the mowing machine which implemented this invention The front view of the principal part which located the mowing work machine which implemented this invention on the ridge Perspective view of power transmission unit The side view of the stand mounting state of the mowing work machine which implemented this invention

  Embodiments of the present invention will be described below with reference to the following drawings. 1 is a side view of a mowing machine according to the present invention, FIG. 2 is a front view of the mowing machine, FIG. 3 is a plan view of the mowing machine, and FIG. 4 is a sectional view of the mowing machine. FIG. 5 is a front view of the main part where the mowing machine is located on the cocoon, FIG. 6 is a perspective view of the power transmission unit, and FIG. The side view of the stand mounting state is shown.

  The mowing machine 1 shown in this example is mounted on a mounting portion provided behind a tractor (not shown), and is used by driving the mowing portion 5 with power from the tractor. A three-point link hitch mechanism comprising a pair of left and right lower links provided at the rear of the tractor and a top link provided at the upper center thereof, lower link pins 20 and 20 ′ provided at the front lower and right and left of the mowing machine 1 and the above-mentioned The lower link and the top link pin 21 at the front end portion of the top mast 22 provided at the front upper portion are connected to the top link. There is also a method of attaching through a connecting frame (called a quick coupler or an auto hitch) that standardizes these to a three-point link mechanism.

  The mowing machine 1 is provided with the mounting portion 2 including the lower link pin 20, the top mast 22, and the top link pin 21 at the front end portion, and an input shaft 30 that protrudes forward. Is provided at the front center portion, and is connected to the input shaft 30 and a tractor PTO shaft (not shown) by a universal joint to be inputted with power and driven.

  The input shaft 30 is held by a bevel gear case 3 in which a bevel gear 32 is provided. A cut portion 5 for cutting and crushing foliage and grass is disposed below the bevel gear case 3. A pair of left and right gauge wheels 6 for adjusting the ground height is provided. In addition, holders 54 and 54 'are provided on the outer side surfaces of the left and right side plates 53 and 53' of the cutting unit 5, and the holders 54 and 54 'are U-shaped in a cross-sectional view and elongated in the vertical direction. The foliage guide rods 7 and 7 ′ having mounting arms 74 made of square pipes fitted to the U-shaped portion with the open side facing left and right are provided on the U-shaped portion so as to be freely attached and detached.

  The main stem and leaf guide rod 70 of the stem and leaf guide rod 7, 7 ′ has a tip portion positioned forward and downward from the outer periphery of the cutting blade 51, and is provided rearward from the tip portion, and the trailing end portion is a cutting blade of the cutting portion 5. It is inclined and provided on the inner periphery of 51 rotations. The foliage guide rods 7, 7 ′ have a substantially symmetrical shape in plan view, respectively, and a main foliage guide rod 70 extending rearwardly in the direction of the cutting blade 51 in parallel with the traveling direction from the tip portion, and from the tip portion. It has a substantially triangular shape in plan view, which is composed of a lateral foliage guiding portion 71 that is inclined to the side and inclined upward, and a flat planar guiding portion 72 that connects the main foliage guiding rod 70 and the lateral foliage guiding portion 71. A scooping-up portion, and a vertical guide rod 73 that is positioned between the main stem and leaf guide rod 70 and the side plates 53 and 53 ′ in a front view and is erected from the front end of the left and right side plates 53 and 53 ′ of the cutting unit 5 Have.

  The mounting arm 74 is extended from the outer end of the scooping portion. The mounting arm 74 is provided with a plurality of mounting holes penetrating in the traveling direction of the mowing machine 1 in the vertical direction. On the other hand, the holders 54, 54 ′ provided in the side plates 53, 53 ′ are provided with through-holes that penetrate in the moving direction of the cutting machine 1, and the vertical holes of the mounting arm 74 are selected to select the holders 54, 54 ′. The height with respect to the cutting part 5 of the foliage guide rods 7 and 7 'can be adjusted by inserting and attaching the fixing pin 82 to the 54' through-hole.

  The bevel gear case 3 that projects and holds the input shaft 30 forward and converts and shifts rotational power in the lateral direction of the traveling direction by an internal bevel gear 32 is fixedly extended by a pipe frame 31 that is a pipe-like frame in the lateral direction. The power is transmitted to the side end side by the output shaft 33 provided in one of the left and right pipe frames 31. A belt first pulley 40 is fixed to the front end of the output shaft at the side end opposite to the bevel gear case 3, and is fixed to the end of the rotary shaft 50 of the reaping portion 5 below. The second pulley 41 is provided, and the power transmitted by the output shaft 33 by the transmission belt 42 spanned between these pulleys is transmitted to the rotating shaft 50 of the cutting unit 5 and is driven to rotate. Side pulleys and transmission belt portions are covered and guarded by a belt cover 4.

  The cutting unit 5 is provided with a plurality of cutting blades 51 radially swingably on a rotary shaft 50 in a horizontal direction orthogonal to the traveling direction of the tractor, and passes above the rotary shaft 50 so as to scoop up from the front to the rear. Rotate to shave and cut the foliage and crush. The upper part of the outer periphery of the cutting edge 51 of the cutting blade 51 is covered with the cutting part cover 52 to prevent the cut foliage from being scattered, and a portion of the cut foliage is carried around the rotating shaft 50 to be further finely crushed. It is provided to do.

  Gauge rings 6 are provided on the left and right of the cutting part 5 and are attached to a gauge ring mounting frame 63 that is connected to a frame extending rearward from the frame above the cutting part 5 so as to be rotatable in the vertical direction. The gauge wheel mounting frame 63 includes a square pipe-shaped horizontal frame 630 provided in the left-right horizontal direction for positioning the gauge wheel 6 to the left and right, left and right rotating arms 631 extending forward from the horizontal frame 630, and a horizontal An intermediate portion of the frame 630, an upper end portion of the frame extending and fixed above the bevel gear case 3, a telescopic rod 632 rotatably connected to each other, and a handle 633 for expanding and contracting the telescopic rod 632. Yes.

  The front end of the rotation arm 631 is connected to a frame extending rearward from the pipe frame 31 above the cutting unit 5 by a horizontal rotation shaft 64 so as to be rotatable in the vertical direction, and the horizontal frame 630 and the front frame are connected. The horizontal frame 630 on the rotation end side of the rotation arm 631 is rotated up and down by extending and contracting the expansion / contraction rod 632 connected to. By rotating, the gauge wheel 6 attached to the horizontal frame 630 is rotated up and down with respect to the cutting portion 5 to adjust the height.

  The telescopic rod 632 includes a female thread portion and a male screw shaft that is screwed into the telescopic rod 632. When the handle 633 at the frame-side front end fixed to the male screw shaft is rotated, the telescopic rod 632 is expanded and contracted in the axial direction. be able to.

  Slide holders 62 are provided on the left and right of the horizontal frame 630 so as to be slidable and fixed to the left and right, respectively. The slide holder 62 is adjustable in the vertical mounting position, and the gauge ring 6 is horizontally disposed in the lower part. A vertical adjustment arm 61 having a boss 610 that holds a horizontal rotation shaft 600 that rotates in a direction is provided, and the vertical adjustment arm 61 has a horizontal rotation shaft 600 that is inserted into the boss 610 of the vertical adjustment arm 61. Then, a caster frame 60 provided with a horizontal gauge ring rotation shaft 601 having a center at a position offset from the rotation center of the horizontal rotation shaft 600 is inserted in the horizontal rotation shaft 600 and attached so as to be horizontally rotatable. Yes. The gauge wheel 6 is rotatably held on the caster frame 60 by a horizontal gauge wheel rotating shaft 601.

  The slide holder 62 has a rectangular portion to be inserted into the square pipe-shaped horizontal frame 630, and can be fixed by crimping the rectangular portion to the horizontal frame 630 with a tightening screw and loosening the tightening screw. The left and right positions can be adjusted according to the heel width.

  The vertical adjustment arm 61 has a plurality of mounting holes in the vertical direction, and can be adjusted up and down by selecting and mounting these holes, and further adjustable from the vertical range adjusted by the telescopic rod 632. .

  The holders 54 and 54 ′ provided on the left and right outer surfaces of the left and right side plates 53 and 53 ′ of the cutting unit 5 and holding the foliage guide rods 7 and 7 ′ are removed when the work is performed. Thus, as shown in FIG. 7, a stand 8 that holds the mowing work machine 1 floating from the placement surface is mounted. The stand 8 includes a stand frame 81 composed of a horizontal pipe frame and a vertical pipe frame, and a caster wheel 80 provided below the horizontal pipe frame. The foliage guide rods 7 and 7 are provided on the vertical pipe frame. A through hole is provided in the same manner as the mounting arm 74, and the fixing pin 82 is inserted and fixed. The mowing machine 1 removed from the tractor can be easily moved in a hangar or the like by the caster wheel 80 of the stand 8.

  In addition, in a state where the foliage guide rods 7 and 7 'are not mounted, it can be used for normal grass cutting work in a flat place where there are no wrinkles or the like.

  Next, the operation of the mowing machine according to the present invention will be described. The tractor is mounted on the tractor by the mounting portion 2 provided at the front part of the mowing machine 1, and the input shaft 30 provided at the front center part of the mowing machine 1 is rotationally driven by the power from the tractor PTO shaft. The power of the input shaft 30 is transmitted by converting and shifting the rotational power in the traveling direction left and right by the bevel gear inside the bevel gear case 3 provided to project forward, and the power is transmitted by the output shaft provided in the pipe frame 31. Is transmitted to the side end side. A first pulley 40 is fixed to the tip of the output shaft 33 on the side end opposite to the bevel gear case 3, and a second fixed to the end of the rotary shaft 50 of the cutting unit 5 below the first pulley 40. Pulleys 41 are provided, and the power transmitted by the output shaft 33 by the transmission belt 42 spanned between these pulleys is transmitted to the rotary shaft 50 of the cutting unit 5 and is driven to rotate. A plurality of cutting blades 51 are provided on the rotary shaft 50 so as to freely swing, and the cut grass and foliage are rotated so as to pass up the rotary shaft 50 and scoop up from the front to the rear. The tractor is used to cut and crush grass and foliage. The upper part of the outer periphery of the cutting locus of the cutting blade 51 is covered with the cutting portion cover 52 to prevent scattering of cut grass and foliage and to rotate part of the cut foliage by the action of the scooping surface of the cutting blade 51. Bring it around the shaft 50 to crush it further.

  When cutting the foliage of the crop planted on the cocoon, as shown in FIG. 5, the right and left central part of the reaping machine 1 is positioned at the center of the cocoon A, and the left and right gauge rings 6 are attached to the heel and the cocoon. Further, the front end of the main stem and leaf guide rod 70 of the stem and leaf guide rods 7 and 7 'is positioned in the vicinity of the hem portion of the rod. By adjusting the gauge ring 6 so that the rotational outer periphery of the cutting blade 51 of the cutting unit 5 is positioned at the top of the cocoon, the roots of the foliage at the top of the cocoon can be cut. Also, the main stem and leaf guide rod 70 provided with the rear end positioned and inclined to the inside of the cutting blade rotation outer periphery of the cutting portion 5 from the front tip to the rear is located under the foliage where the front tip is suspended from the ground. Then, the inclined surface is slid up and guided to the cutting portion 5. The lateral foliage guiding part 71 inclined sideways from the front end to the side and the flat foliage guiding part 72 connecting the main foliage guiding rod 70 and the lateral foliage guiding part 71 are further submerged under the foliage. Easily raise the tip of the foliage gradually.

  A vertical guide rod 73 located between the main stem and leaf guide rod 70 and the side plates 53, 53 'in a front view and standing in front of the front end of the left and right side plates of the cut portion is planted in the rod and the root is still cut. The foliage not cut by the part 5 is dragged while the root is fixed as the tractor advances, and is slid to the tip side to guide the tip side to the heel center side.

  The ground height of the cutting unit 5 can be arbitrarily set by adjusting the height of the gauge wheels 6 provided on the left and right sides of the cutting unit 5, and the telescopic rod 632 provided in the upper part of the central portion of the foliage cutter 1. The handle 633 provided at the front end of the handle 633 is rotated to adjust the length.

  After the cutting operation is finished, the foliage guide rods 7 and 7 'are removed from the holders 54 and 54' of the side plates 53 and 53 ', and the stand 8 is attached instead to disconnect the connection from the tractor. In addition, in a state where the foliage guide rods 7 and 7 'are removed, a cutting operation can be performed in a normal flat place.

  INDUSTRIAL APPLICABILITY The present invention is used for an agricultural machine that is used after being mounted on a rear side of a traveling machine such as a tractor, and is used for a grass cutting operation or a cutting operation of a foliage of a crop planted in a straw or the like.

DESCRIPTION OF SYMBOLS 1 Mowing machine 2 Mounting part 20,20 'Lower link pin 21 Top link pin 22 Top mast 3 Bevel gear case 30 Input shaft 31 Pipe frame 32 Bevel gear 33 Output shaft 4 Belt cover 40 First pulley 41 Second pulley 42 Transmission belt 5 Cutting part 50 Rotating shaft 51 Cutting blade 52 Cutting part cover 53, 53 ′ Side plate 54, 54 ′ Holder 6 Gauge wheel 60 Caster frame 600 Horizontal rotating shaft 601 Gauge wheel rotating shaft 61 Vertical adjustment arm 610 Boss 62 Slide holder 63 Gauge wheel Mounting frame 630 Horizontal frame 631 Rotating arm 632 Telescopic rod 633 Handle 64 Rotating shaft 7, 7 'Leaf and leaf guide rod 70 Main leaf and leaf guide rod 71 Lateral leaf and leaf guide portion 72 Planar guide portion 73 Vertical guide rod 74 Mounting arm 8 Stand 8 0 Caster wheel 81 Stand frame 82 Fixing pin

Claims (3)

A cutting part that can be attached to the rear part of the tractor, and a cutting machine that performs cutting operations by rotating a plurality of cutting blades radially on the horizontal axis of rotation perpendicular to the advancing direction of the tractor and rotating with the power from the tractor A cutting machine having a portion, a side plate that supports both ends of the rotating shaft and extends in parallel with the advancing direction of the tractor, and a gauge wheel disposed behind the cutting unit,
A foliage guide rod provided with a tip portion positioned forward and downward from the cutting blade rotation outer periphery of the cutting portion, inclined from the tip portion to the rear side view and a rear end portion positioned inside the cutting blade rotation outer periphery. And a cutting work machine characterized in that the foliage guide rod is attached to and removed from the left and right side plates of the cutting unit.   It has a holder for attaching a stand for holding the airframe during work on the left and right side plates of the pair of left and right trimming parts, and the foliage guide rod can be detachably attached to the holder for attaching the pair of left and right stands, respectively. The mowing machine according to claim 1.   The foliage guide rod has a substantially symmetrical shape in plan view, and the main foliage guide rod extending from the tip portion in the direction of the cutting blade in parallel with the direction of travel, and the tip portion toward the side and back upward. A lateral stalk-and-leaf guide part inclined to the plate, a flat planar guide part that connects the main stalk-and-leaf guide rod and the lateral shoot-and-leaf guide part, and between the main shoot and leaf guide ridge and the side plate in a front view, The mowing machine according to claim 1, further comprising a vertical guide rod erected at a position forward from the front end.

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