JP2005295808A - Plowing implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To exhibit the performance of plowing claws and raking bodies of a plowing rotor. <P>SOLUTION: This puddling implement 1 which is one example of plowing implements, is provided by having a puddling rotor 23 having in a plurality of puddling claws 25 and freely rotating, arranging/installing a shield cover 30 in the upper direction of the puddling rotor 23. The shield cover 30 has a pair of side plate parts 31 arranged at the both ends of the puddling rotor 23 and a ceiling part 33 joined between the upper parts of them and bending. A side cover 40 is joined with the front end part of the side plate part 31 through an arm part 50 consisting of a first linking member 51 and a second linking member 52. The arm part 50 makes a parallel-linking mechanism by joining with the side plate part 31 and the side cover 40. At the side cover 40, in a plurality of engaging hole parts 61 are installed and at the engaging hole parts 61, a swinging-restricting pin 63 is mounted, and the swinging-restricting pin 63 makes a contact with the first linking member 51 or second linking member 52 and restricts the swinging over the swinging-restricted zone, of the arm part 50. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a tilling work machine that is attached to a rear portion of a traveling machine body and performs a tilling operation on a farm field while traveling with the traveling machine body while a tilling rotor is rotated by power transmitted from the traveling machine body.

  Examples of such a tilling work machine include a tilling work machine used for tilling work in a field and a tilling work machine (hereinafter referred to as “powder working machine”) used for a plowing work in a paddy field. These work machines have substantially the same configuration. For example, as a plowing work machine, a tilling rotor provided with a plurality of tilling claws radially is supported rotatably on the work machine body and covers the top of the tilling rotor. A cover part is attached to the work machine main body, a shield cover extending in the front-rear direction arranged on both ends of the tilling rotor in the axial direction is attached to the work machine main body, and the leveling plate and rake body for leveling can be moved up and down at the rear position of the tilling rotor. Is known (see Patent Document 1).

  At the time of scraping work with this tilling work machine, the cultivated soil cultivated by the tilling claws of the tilling rotor is discharged to the leveling plate side for leveling and is leveled by the leveling plate and rake body, but on the other hand, it was plowed The cultivated soil is dragged by the rotational movement of the cultivating rotor, lifted, moved forward while being guided by the cover portion, and discharged to the front of the scraping work machine. Further, the movement of the cultivated soil that has been lifted and released in the axial direction of the cultivating rotor is restricted by the shield cover.

JP-A-9-107704

  However, both sides of the shield cover arranged at the axial end of the tilling rotor have a small amount of protrusion to the front side, and the lower surface of the protruding shield cover is located above the paddy field. Therefore, the cultivated soil lifted by the tilling rotor and discharged to the lower side of the lower surface of the shield cover is scattered on the rice field through the lower side of the lower surface. Therefore, when the straw laid on the paddy field is squeezed into the cultivated soil by this conventional plowing machine, the straw extending in the axial direction at the axial end of the cultivating rotor is released to the lower side of the lower surface of the shield cover. The whole straw is moved outward in the axial direction by being pushed outward by the cultivated soil. As a result, even if the tilling claw or rake body of the tilling rotor has a good straw plowing performance, only a part of the straw is swallowed by this, and the remaining part floats on the field surface. End up. In other words, with the conventional plowing machine, even when using a tilling claw or rake body with good plowing performance, these performances cannot be demonstrated effectively, and the straw plowing ability of the whole paddy field can be improved. The problem that it is not possible arises.

  This problem also occurs in the case where the weeds and the like in the field are plowed into the field by the tilling machine that plows the field.

  This invention is made | formed in view of such a problem, and it aims at providing the tilling work machine which can exhibit the performance of a tilling nail | claw or a rake body effectively.

  In order to achieve the above object, a tillage working machine of the present invention is provided with a tilling rotor (for example, a plowing rotor 23 in the embodiment) that is attached to the rear part of a traveling machine body and rotates by power transmitted from the traveling machine body. In a tilling work machine that performs a tilling operation on a farm field (for example, paddy field B in the embodiment) while the tilling rotor rotates and travels along with the traveling of the traveling machine body, a pair of side covers are provided on both sides of the tilling work machine. Features.

  According to this invention, by providing a pair of side covers on both sides of the tillage working machine, even if the tilled soil is discharged to the side cover side by the tiller rotor, the tilled soil does not collide with the side cover and scatter to the outside of the side cover. . For this reason, when there is a straw or the like extending in the axial direction on the front side in the traveling direction of the axial end of the tilling rotor, the straw or the like is not moved outward by the cultivated soil discharged to the side cover side. As a result, the length of the straw and other parts extending inward of the side cover is not shortened. It is possible to increase the total amount of burial of straw and the like that is trapped by these when used. In other words, the performance of the tilling nail and the rake body can be effectively exhibited, and the plowing ability of straw or the like in the entire field can be improved. Further, even if a flow toward the outside is generated by the mud flow pushed away by the tire passing through the traveling machine body, the flow can be received by the side cover and guided to the tilling work machine side.

  In addition, the present invention is characterized in that a pair of side covers is provided on a tilling work machine main body (for example, the work machine main body 10 in the embodiment) so as to be movable up and down.

  According to the present invention, by providing the pair of side covers so as to be movable up and down on the main body of the tilling work machine, when the main body of the tilling work machine moves up and down due to the unevenness of the field, the side cover moves up and down relative to the main body of the tilling work machine. Thus, the side cover can be maintained in contact with the upper surface of the field.

  Further, according to the present invention, the side cover is attached to the other end side of the arm portion whose one end side is rotatably attached to the tillage work machine main body and the other end side extends to the front side in the traveling direction and is swingable in the vertical direction. It is characterized in that it can be moved up and down according to the swing of the part.

  According to the present invention, the side cover can be moved up and down via the arm portion, so that the side cover can be moved in the vertical direction only by swinging the arm portion.

  Furthermore, the present invention is characterized in that it includes a rocking restricting means (for example, a rocking restricting body 60 in the embodiment) for restricting the rocking of the arm portion beyond a predetermined rocking range.

  According to the present invention, the arm portion is restricted from swinging beyond the predetermined swing range by the swing restricting means, so that the arm portion does not swing beyond the predetermined swing range. For this reason, it is possible to prevent a situation in which the side cover comes into contact with the tillage work machine body or falls to a deep position on the surface of the field.

  Further, the present invention is characterized in that the arm portion is connected to the side cover and the tillage work machine main body to form a parallel link mechanism.

  According to the present invention, the arm portion is connected to the side cover and the tilling work machine main body to form a parallel link mechanism, whereby the side cover can be moved in the vertical direction while keeping the posture of the side cover constant.

  Further, according to the present invention, the swing restricting means protrudes from at least one of the side cover and the tillage work machine main body and swings in the vertical direction (for example, the first link member 51 in the embodiment, the first link A swing restricting member (for example, a swing restricting pin 63 in the embodiment) that contacts the two link members 52) and restricts the vertical swing of the arm portion.

  According to the present invention, the swing restricting means includes the swing restricting member provided so as to protrude from at least one of the side cover and the tillage work machine main body, thereby restricting the vertical swing of the arm portion with a simple configuration. Oscillation regulating means can be provided.

  Furthermore, the present invention provides a plurality of engagement portions (for example, engagement hole portions in the embodiment) in which the swing regulating member is formed at a predetermined interval in the vertical direction on at least one of the side cover and the tillage work machine main body. 61) that can be replaced.

  According to the present invention, the swing regulating member is detachably attached to the plurality of engaging portions formed on at least one of the side cover and the tillage work machine main body, so that the vertical swing range of the pair of side covers is reduced. A desired range can be obtained.

  According to the tillage working machine according to the present invention, by providing a pair of side covers on both sides of the tilling work machine, the performance of the tilling claws provided on the tilling rotor and the rake body disposed on the rear side of the tilling rotor is effectively improved. As a result, it is possible to improve the penetration of straw and the like in the entire field.

  Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. The present embodiment will be described by taking as an example a plowing work machine that plows a paddy field out of a plowing work machine. For convenience of explanation, the directions of the arrows shown in FIGS. 1 and 2 will be described below as the front-rear direction and the left-right direction.

  As shown in FIG. 1 (side view), FIG. 2 (a) (plan view), and FIG. 2 (b) (back view), the scraping work machine 1 includes a work machine body 10. The work machine body 10 includes a main frame 11 extending in the left-right direction, and a gear box 13 is provided at the center of the main frame 11 in the left-right direction. The gear box 13 is provided with an input shaft 14 that protrudes forward and is rotatable. The input shaft 14 is configured to transmit power from a PTO shaft (not shown) of the traveling machine body 90. A mast 16 that protrudes forward is provided above the gear box 13, and a pair of lower arms 17 that protrude obliquely downward and forward are provided on the left and right sides of the main frame 11, and these mast 16 and lower arm 17 are provided. Is configured to be coupled to a three-point link coupling mechanism (not shown) provided at the rear of the traveling machine body 90.

  A chain case 19 and a support arm 20 that extend downward are opposed to both left and right ends of the main frame 11, and a scraper rotor 23 is rotatably supported between the lower side of the chain case 19 and the support arm 20. ing. The scraping rotor 23 is configured by radially attaching a plurality of scraping claws 25 to a rotating shaft 24 supported rotatably between the chain case 19 and the support arm 20. The scraper rotor 23 has a power transmission mechanism (not shown) in which the power transmitted to the input shaft 14 of the gear box 13 is built in the main frame 11 and a power transmission mechanism (not shown) in the chain case 19. It is transmitted and is rotationally driven in the down cut direction (arrow A direction in FIG. 1).

  Between the chain case 19 and the support arm 20 above the scraping rotor 23, a shield cover 30 that covers the top of the scraping rotor 23 and extends in the front-rear direction is disposed. The shield cover 30 is attached to each of the chain case 19 and the support arm 20 and extends in the front-rear direction, and is connected between the upper portions of the pair of side plate portions 31 along the rotation locus A of the scraper rotor 23. And a curved top plate portion 33. The side plate portion 31 extends in the front-rear direction so as to cover the side portion of the top plate portion 33. The front side end portion of the side plate portion 31 protrudes from the front side end portion of the top plate portion 33, and the lower surface of the side plate portion 31 forms a predetermined gap with the field surface Bs of the paddy field B. On the other hand, the rear side of the side plate portion 31 extends downward from the rear side end portion of the top plate portion 33, and the lower end portion thereof extends to a position near the field surface Bs of the paddy field B.

  A side cover 40 extending in the front-rear direction is provided at the front end portion of the side plate portion 31 so as to be movable in the vertical direction via the arm portion 50. The side cover 40 has a plate shape, and its lower surface is formed in a substantially linear shape. The arm portion 50 has a first link member 51 whose one end is pivotally connected to the upper inner side of the side cover 40 and the other end is pivotally connected to the upper inner side of the front end of the shield cover 30, and a lower portion of the first link member 51. And a second link member 52 having one end pivoted to the lower inner side of the side cover 40 and the other end pivoted to the lower inner side of the front end of the shield cover 30. The first link member 51 and the second link member 52 are connected to the side cover 40 and the shield cover 30 to form a parallel link mechanism. For this reason, even if the work implement main body 10 moves up and down, the side cover 40 can move in the vertical direction with the lower surface of the side cover 40 extending in a substantially horizontal direction.

  The side cover 40 is provided with a swing restricting body 60 that restricts swinging of the arm portion 50 when the arm portion 50 exceeds a predetermined swing range. The swing restricting body 60 has a plurality of engaging hole portions 61 formed at predetermined intervals in the vertical direction on the rear side of the side cover 40, and a swing restricting pin attached to the engaging hole portion 61 so as to be replaceable. 63. When the arm portion 50 (the first link member 51 and the second link member 52) swings downward in a state where the swing restricting pin 63 is inserted into any of the engagement hole portions 61, the side cover 40 moves downward. The swing restriction pin 63 contacts the upper surface of the second link member 52 and the downward swing of the first link member 51 is restricted, and the downward movement of the side cover 40 is restricted. Further, when the arm portion 50 swings upward from the state in which the side cover 40 is in the lower position, the side cover 40 moves upward, and the swing restricting pin 63 comes into contact with the lower surface of the first link member 51 and the second link. The upward swing of the member 52 is restricted, and the upward movement of the side cover 40 is restricted.

  For this reason, if the rocking | fluctuation control pin 63 is attached to the predetermined | prescribed engaging hole part 61, the lower surface of the side cover 40 is side within the range of the position which had the predetermined distance upwards from the field surface Bs, and the upper and lower vicinity position of the field surface Bs. The cover 40 can be moved. Note that a plurality of engagement hole portions 61 may be formed at the front end portion of the side plate portion 31, and the swing restriction pin 63 may be attached to any one of these engagement hole portions.

  A first leveling plate 70 extending obliquely downward is attached to the rear side of the shield cover 30 so as to be swingable up and down, and a second leveling plate 73 is attached to the tip of the first leveling plate 70 so as to be swingable up and down. It has been. These leveling plates 70 and 73 are supported by a link mechanism 75 connected between the work machine body 10 and the second leveling plate 73 so as to be movable up and down. On the back side of the first leveling plate 70 and the second leveling plate 73, a plurality of rakes 77 extending rearward are attached at predetermined intervals in the left-right direction.

  Next, the operation of the cutting work machine 1 in the case of performing the work of pouring the straw W laid on the surface Bs of the paddy field B into the cultivated soil by the cutting work machine 1 of the present invention will be described. First, the scraper working machine 1 is connected to the traveling machine body 90, and the input shaft 14 is connected to the PTO shaft of the traveling machine body 90 via a power transmission shaft (not shown). And the rocking | fluctuation control pin 63 is attached to the predetermined | prescribed engaging hole part 61 so that the lower surface of the side cover 40 may move to the position near the upper and lower sides of the field surface Bs of the paddy field B. The position of the side cover 40 at this time is referred to as a work position. Then, the arm portion 50 is swung to move the side cover 40 to the working position. Then, the traveling machine body 90 is moved forward, and the power from the traveling machine body 90 is transmitted to the working machine body 10 of the scraping work machine 1 to rotate the scraping rotor 23 in the downcut direction.

  Then, during the scraping operation, the cultivated soil cultivated by the cultivating claws 25 of the cultivating rotor 23 is discharged to the first leveling plate 70 side and is leveled by the first leveling plate 70 and the second leveling plate 73. Further, among the straw W laid on the surface Bs of the paddy field B, the straw W inside the tilling rotor 23 is swallowed into the cultivated soil by the tilling claws 25 of the alternative rotor 23, and the straw W about to rise is The first leveling plate 70 and the second leveling plate 73 and the rake 77 provided in each are pushed from above and buried in the cultivated soil.

  Further, the straw Wt extending in the axial direction around the axial end portion of the tilling rotor 23 is pressed into the tilled soil by the lower surface of the side cover 40. Of the straw Wt, the straw portion Wt1 extending toward the tilling rotor 23 (inner side) is swallowed into the cultivated soil by the tilling claws 25 of the scraping rotor 23, and the straw portion Wt2 extending outward is not swallowed into the cultivated soil. Floats on the rice field Bs of paddy field B.

  On the other hand, the mud that flows along the inside of the top plate portion 33 that is lifted and curved by the tilling claw 25 of the scraper rotor 23 is discharged from the front end portion of the top plate portion 33 and falls onto the paddy field Bs of the paddy field B. . Of the mud discharged from the front end of the top plate 33, the mud released to the side cover 40 collides with the inner side surface of the side cover 40 and falls onto the paddy field Bs. For this reason, the portion Wt1 extending inward of the side cover of the straw Wt extending in the axial direction of the scraping rotor 23 is pressed from above by the side cover 40 even if the mud discharged from the front end is hit. At the same time, the mud that has collided with the side cover 40 bounces inward in the axial direction of the scraper rotor 23 and hits Wt 1, so that the straw portion Wt 1 is not moved outside the side cover 40. Further, the mud released from the front end does not hit the portion Wt2 extending to the outside of the side cover. As a result, the straw Wt extending in the axial direction of the scraping rotor 23 is not moved outward in the axial direction of the scraping rotor 23, and the length of the portion of the straw Wt extending inward of the side cover 40 is not shortened. For this reason, compared with the case where the straw Wt is moved to the axial direction outer side, the amount of burial of the whole straw Wt pinched by the tilling nail | claw 25 can be increased. Therefore, when the tilling claw 25 with good plowing performance is attached to the scraper rotor 23, the performance of the tilling claw 25 can be effectively exhibited. As a result, the penetration of the straw W in the entire paddy field B can be improved.

  In the above-described embodiment, the plowing work machine 1 is taken as an example of the plowing work machine, but the same effect as that of the plowing work machine 1 can be obtained even when the plowing work machine that plows the field is used. That is, in the case where the weeds and the like in the field are plowed into the field by the tillage working machine, the performance of the tilling claw can be effectively exhibited by the side cover 40, and as a result, the weeds and the like of the whole field can be obtained. The penetration property can be improved.

The side view of the scraping work machine concerning one embodiment of the present invention is shown. FIG. 2A is a plan view of the cutting work machine, and FIG. 2B is a side view of the cutting work machine.

Explanation of symbols

1st generation work machine (cultivation work machine)
10 Working machine body (Tilling machine body)
23 generation scraper rotor (cultivation rotor)
40 Side cover 50 Arm 60 Swing restricting body (swing restricting means)
61 Engagement hole (engagement part)
63 Oscillation restriction pin (Oscillation restriction member)
90 traveling body B paddy field (field)

Claims (7)

A tilling work machine that is mounted at the rear of the traveling machine body and includes a tilling rotor that is rotated by the power transmitted from the traveling machine body, and that advances along with the traveling of the traveling machine body while the tilling rotor rotates and performs a tilling work on a field. In
A tilling work machine comprising a pair of side covers on both sides of the tilling work machine.   The tiller working machine according to claim 1, wherein the pair of side covers are provided on the tiller working machine body so as to be movable up and down.   The side cover is attached to the other end side of an arm portion that has one end side pivotably attached to the tillage work machine body and the other end side extending forward in the traveling direction and swingable in the vertical direction. The tillage working machine according to claim 2, wherein the tiller is provided so as to be movable up and down in accordance with swinging of the part.   The tilling work machine according to claim 3, further comprising swing restricting means for restricting swinging of the arm portion exceeding a predetermined swing range.   The tiller working machine according to claim 3 or 4, wherein the arm portion is connected to the side cover and the tiller working machine main body to form a parallel link mechanism.   The swing restricting means is provided so as to protrude from at least one of the side cover and the tillage work machine main body and abuts on the arm portion swinging in the vertical direction to restrict the vertical swing of the arm portion. The tillage working machine according to claim 4 or 5, further comprising a swing regulating member.   The swing control member is attached to at least one of the side cover and the tillage work machine main body so as to be replaceable with a plurality of engaging portions formed at predetermined intervals in the vertical direction. Item 7. A tilling machine according to item 6.

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