JP2011103848A - Reaping implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reaping implement 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 parts and enables accurate works. <P>SOLUTION: The reaping implement, having a tractor mounting portion, a reaping portion 5 rotated by a power from the tractor, and gauge wheels 6 disposed at the rear lateral positions of the reaping portion 5, is characterized by detachably disposing extended side plates 54, 54' capable of being extended downward from the lower end of the rotation outer circumferences of the reaping blades 51 on the right and left side plates 53, 53' of the reaping portion, and having a pair of right and left foliage-guiding rods 70 which are detachably attached to attaching portions behind the reaping portion 5, which keep tip portions placed forward and downward from the rotation outer circumferences of the reaping blades 51 and are inclined from the tip portions in the rearward lifted direction through the inside of the rotation outer circumferences of the reaping blades 51. <P>COPYRIGHT: (C)2011,JPO&INPIT

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 the crops planted on the reeds, there is a problem that the vines and foliage that have been mowed due to the convex recesses between the reeds are not properly crushed.

  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 work machine in which normal mowing work and stalk-and-leaf cutting work of crops planted on a cocoon can be combined with simple parts switching, and each can perform highly accurate work. With the goal.

  In order to solve the above-mentioned problems, a plurality of cutting blades are provided in a swingable manner radially on a mounting portion that can be mounted on the rear portion of the tractor and a horizontal rotation axis that is orthogonal to the traveling direction that is rotated by the power from the tractor. In the cutting machine having a cutting portion and gauge wheels arranged on the left and right sides of the cutting portion, the side plates on the left and right of the cutting portion are attached with extension side plates that can extend downward from the lower end of the outer periphery of the cutting blade rotation. A pair of left and right can be attached to the attachment part at the rear of the cutting part so as to be detachable, the tip part is located forward and below the cutting blade rotation outer periphery, and passes from the tip part to the rear inside the cutting blade rotation outer periphery. Then, a mowing machine having a foliage guide rod provided inclined is proposed.

  According to this invention, the side plates on the left and right of the cutting part are provided with the extended side plates that can be attached and removed from the lower end of the cutting blade rotation outer periphery so that they can be detached and operated during normal mowing. When cutting leaves such as cocoons, cutting can be performed with high accuracy by mounting. In particular, when cutting leaves such as straw, if the gap between the lower ends of the left and right side plates is larger than the ground, the cut leaves will jump out of the cutting part and are not easily carried around in the cutting part. Since it is difficult to obtain, there is a case where the shredding is not performed finely, but by providing the extension side plate, it is possible to perform a highly accurate work.

  In addition, a pair of left and right are provided on the attachment part at the rear of the cutting part so as to be detachable, the tip part is located forward and below the cutting blade rotating outer periphery, and is inclined upwardly from the tip part through the inside of the cutting blade rotating outer periphery. With the stem-and-leaf guide rod provided, even if the stem and leaf of a crop planted in a high rod fall down, it is lifted up from below and is surely guided to the rotation region of the cutting blade, so that problems such as leftovers do not occur. Also, by removing only the foliage guide rod, normal mowing work can be easily performed.

Side view of a mowing machine according to the present invention The top view of the mowing machine which implemented this invention The front view which located the mowing work machine which implemented this invention on the ridge Rear view of a mowing machine according to the present invention The side view which carried out a part of section of the mowing machine which carried out the present invention The side view at the time of the normal mowing work 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. FIG. 1 is a side view of a mowing machine according to the present invention, FIG. 2 is a plan view of the mowing machine, FIG. 3 is a front view of the mowing machine located on the ridge, and FIG. FIG. 5 is a side view of a partially cut section of the cutting machine, and FIG. 6 is a side view of the cutting machine according to the present invention in a normal mowing state.

  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 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 of the lower link pins 20 provided at the lower left and right of the cutting machine 1 and the lower link. Similarly, the top link pin 21 at the front tip portion of the top mast 22 provided in the upper front portion is 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 provided with a bevel gear inside, and below the bevel gear case 3, a cutting part 5 for cutting and crushing foliage and grass is disposed. A pair of left and right gauge wheels 6 for adjusting the ground height are provided. Further, the foliage guiding part 7 is provided on a square pipe-shaped mounting frame 71 that is held horizontally on the left and right side plates 53, 53 ′ of the cutting part 5, and the foliage guiding part 7 is attached to the mounting frame 71. A pair of slide holders 72 is provided in the left-right direction, and a foliage guide rod 70 is attached to the slide holder 72 so as to be freely attached and detached. The foliage guide rod 70 is positioned forward and downward from the outer periphery of the cutting blade rotation and rearward from the tip portion. The cutting blade 5 is attached to a slide holder 72 so as to be inclined and pass through the inner periphery of the cutting blade rotation of the cutting portion 5.

  The slide holder 72 can be moved from side to side with respect to the mounting frame 71. The portion passing through the cutting blade rotation outer periphery of the cutting portion 5 of the foliage guide rod 70 passes the gap portion between the cutting blades in the left-right direction. The foliage guide rod 70 can be attached to the slide holder 72 by selecting and attaching a large number of attachment holes 73 provided in the longitudinal direction of the foliage guide rod 70 so that the front-rear position of the tip portion can be adjusted. Further, the stem / leaf guide rod 70 mounting portion of the slide holder 72 is provided so as to be pivotable in the forward / backward direction around the rotation fulcrum 74 with respect to the mounting frame 71, and the front end portion of the leaf / leaf guide rod 70 is on the ground. It is configured to slide in contact and rotate up and down a certain range to follow the ground.

  A bevel gear case 3 for projecting and holding the input shaft 30 forward and converting and shifting rotational power in the lateral direction of travel by an internal bevel gear has a pipe-like frame fixedly extended in the lateral direction. Power is transmitted to the side end side by an output shaft provided in the pipe-shaped frame. A belt pulley is fixed to the front end of the output shaft at the side end opposite to the bevel gear case 3, and an input pulley fixed to the end of the rotary shaft 50 of the cutting unit 5 is provided below the pulley. The power transmitted by the output shaft by the transmission belts that are provided on these pulleys is transmitted to the rotary shaft 50 of the cutting unit 5 and rotationally driven. 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 The frame 630 includes a middle portion of the frame 630, an upper end portion of the frame extending and fixed above the bevel gear case, a telescopic rod 632 that is rotatably connected to each other, and a handle 633 for expanding and contracting the telescopic rod 632. .

  The front end of the rotation arm 631 is connected to a frame extending rearward from the frame above the cutting unit 5 by a horizontal rotation shaft 64 so as to be vertically rotatable, and is connected to the horizontal frame 630 and the front frame. By extending / contracting the extended telescopic rod 632, the horizontal frame 630 on the rotating end side of the rotating arm 631 rotates up and down. 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 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 position can be adjusted.

  The vertical adjustment arm 61 is provided with a large number 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. .

  In the lower part of the side plates 53, 53 ′ that rotatably hold the left and right ends of the rotary shaft 50, which is provided with a plurality of cutting blades 51 so as to be able to swing in a radial manner of the cutting unit 5, the side plates 53, 53 ′ are provided below. Extension side plates 54, 54 ′ that can be extended downward are provided so as to be detachable, and when cutting the stems and leaves of crops planted on the culm, the bottom ends of the side plates 53, 53 ′ located in the recesses of the culm Adjust the gap between the concave ground. If the lower ends of the side plates 53, 53 'are larger than the ground, the cut leaves will jump out of the cutting part 5 and are not easily carried around in the cutting part 5, and it is difficult to obtain a crushing effect inside. By adjusting the gap with the extension side plates 54, 54 ', accurate cutting can be performed.

  The extension side plates 54 and 54 'are attached to the plurality of extension side plate attachment holes 530 provided on the lower end side of the side plates 53 and 53' by fastening screws.

  FIG. 6 shows a state in which the extension side plates 54 and 54 ′ of the cutting part 5 and the foliage guiding rod 70 of the foliage guiding part 7 are removed. For normal grass cutting work in a flat place without wrinkles and the like. Can be used.

  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 belt pulley is fixed to the front end of the output shaft at the side end opposite to the bevel gear case 3, and an input pulley fixed to the end of the rotary shaft 50 of the mowing unit 5 is provided below the pulley. The power transmitted by the output shaft by the transmission belts hung around these pulleys is transmitted to the rotating 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. 3, the right and left central part of the reaping work machine 1 is positioned at the center of the heel A, and the left and right gauge rings 6 are connected to the heel and the heel. The operation is performed by positioning the front end of the foliage guiding rod 70 of the foliage guiding portion 7 in the vicinity of the bottom portion of the reed, which is positioned in the recess. 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. Further, the foliage guide rod 70 provided so as to pass rearward from the tip part and pass through the inside of the cutting blade rotation outer periphery of the cutting part 5 slides while the front tip part abuts against the ground and rotates up and down within a certain range. In order to move and follow the ground, the stems and leaves hanging from the left and right of the heel are guided to the rotation region of the upper cutting blade 51 as the tractor advances, and the stems and leaves are surely cut and crushed.

  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.

  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 Lower link pin 21 Top link pin 22 Top mast 3 Bevel gear case 30 Input shaft 31 Pipe frame 4 Belt cover 5 Mowing part 50 Rotating shaft 51 Mowing blade 52 Mowing part cover 53, 53 'Side plate 530 Extension Side plate attachment holes 54, 54 'Extension side plate 6 Gauge wheel 60 Caster frame 600 Horizontal rotation shaft 601 Gauge wheel rotation shaft 61 Vertical adjustment arm 610 Boss 62 Slide holder 63 Gauge wheel mounting frame 630 Horizontal frame 631 Rotation arm 632 Telescopic rod 633 Handle 64 Rotating shaft 7 Foliage guiding part 70 Foliage guiding rod 71 Mounting frame 72 Slide holder 73 Mounting hole 74 Rotating fulcrum

Claims (1)

A mounting portion provided so as to be attachable to the rear portion of the tractor, a cutting portion provided with a plurality of cutting blades oscillating radially on a rotating shaft in a horizontal direction orthogonal to a traveling direction rotated by power from the tractor, and the cutting portion In the cutting work machine having gauge wheels arranged on the left and right of the rear,
The left and right side plates of the cutting part can be attached to and detached from an extension side plate that can be extended downward from the lower end of the cutting blade rotation outer periphery, and a pair of left and right can be attached to and detached from the mounting part at the rear of the cutting part. A cutting machine having a foliage guide rod that is positioned forward and downward from the outer periphery of the rotation and is inclined to pass rearward from the tip of the cutting blade.

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