JP2005130715A - Apparatus for eliminating ditch of chain transmission case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for eliminating a ditch of a chain transmission case designed to surely backfill the ditch formed on a soil surface with the chain transmission case with soil flowing into a side shield and make the ditch flat. <P>SOLUTION: The side shield 17 is formed into a bag shape for allowing the front soil to flow in and the ditch formed on the soil surface with the chain transmission case 7 is backfilled with the soil flowing into the side shield 17 and made flat. A side plate 20 of the side shield 17 is tilted from the forward direction of the machine body. An extension apron 14 is installed in the lateral end of the apron 11 and a plate 15 designed to prevent the soil flowing out of the side shield 17 from flowing out to the outside of the extension apron 14 is installed. The side shield 17 can vertically be regulated according to the plowing depth of a rotary implement 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a chain drive case having a side shield and a side drive type rotary agricultural work machine having an apron, and a groove formed on the soil surface by the chain drive case is backfilled with the soil flowing into the side shield to be flattened. The present invention relates to a chain transmission case groove eraser.

  Conventionally, when a side drive type rotary farming machine having a chain transmission case at the side end of the work machine is used to perform the tilling work in the field, the lower part of the chain transmission case is submerged in the cultivation soil and a continuous groove is formed. In addition, this groove sometimes hindered the work of the next process, for example, sowing work. In addition, the wheel of the sowing machine dropped into the groove and the machine body was tilted, which sometimes hindered work. . In order to eliminate such obstacles, the following prior art is conventionally known.

  A widening spacer 13 having the same shape as that of the side plate 2b of the rotary cover extending rearward from the chain case 5 of the side rotary 1 and having a thickness substantially equal to the protruding thickness of the chain case 5 is prepared separately. A general side cover is attached to the outer periphery of the rear cover 37, and the end of the rear cover 37 on the side of the chain case 5 is widened to near the inside of the wide side cover 29, so that the tilling soil can be It is scattered to the inner surface of the side cover 29 widened to substantially the same surface as the protruding surface, the groove attached by the grounding of the chain case 5 is backfilled, and the rear cover 37 has an end on the chain case 5 side, Since the width of the side cover 29 is increased to the vicinity of the inner surface of the widened side cover 29, the cultivated soil coming out from the rear portion of the widened spacer 13 is the rear cover 37. Further leveled by widened portion, technology is disclosed in Patent Document 1 called.

  Moreover, in the tilling device provided with an apron 2 that freely rotates in the vertical direction at the rear part of the cover 1 of the tilling part, the apron 2 has a side part substantially parallel to the side plate 5 of the cover 1, In addition, an apron side plate 21 is provided so that the apron 2 overlaps with the side plate 5 even when the apron 2 is lifted by the soil on the inner side thereof, and the tiller is cultivated and soil piles are formed on both sides of the flattened soil surface. Japanese Patent Application Laid-Open No. H10-228688 discloses a technique that never happens.

Utility Model Registration No. 2587196 Japanese Utility Model Publication No. 53-28729

  The wide side cover 29 and the apron side plate 21 disclosed in the above prior art can refill the grooves attached by the grounding of the chain case to some extent, but the respective front portions are not open, There was a problem that the capacity of soil was not enough and the groove attached by the grounding of the chain case could not be fully refilled. In particular, when the plowing depth of the rotary tiller is increased, there is a problem that the groove formed by the ground contact of the chain case cannot be completely backfilled.

  In the present invention, the side shield is formed in a bag shape into which the soil in front flows, the amount of soil flowing into the side shield is increased, and the grooves formed on the soil surface are reliably backfilled and flattened by the chain transmission case. Thus, the present invention has been made for the purpose of solving the above-mentioned conventional problems.

In order to achieve the above object, the present invention
A. A side drive type rotary agricultural work machine provided with a chain transmission case and an apron having a side shield at a side end of the work machine,
The side shield is formed in a bag shape into which the soil in front flows, and the groove formed in the soil surface by the chain transmission case is backfilled and flattened by the soil flowing into the side shield.
B. The side plate of the side shield is inclined with respect to the aircraft traveling direction.
C. An extended apron is provided at a side end portion of the apron, and a plate is provided on the extended apron so that the soil flowing out from the side shield does not flow out of the extended apron.
D. The side shield can be adjusted up and down in accordance with the working depth of the rotary working machine.

A. A. With the configuration of (Claim 1), since the side shield is formed in a bag shape, the amount of soil flowing into the side shield is increased, and this large amount of soil is formed on the soil surface by the chain transmission case. The groove can be reliably backfilled and flattened.
B. B. above. With the structure of (Claim 2), the side plate of the side shield is inclined with respect to the aircraft traveling direction, so that the soil in front of the side shield is held in the bag-shaped side shield to reduce the soil capacity. The groove formed on the soil surface by the chain transmission case can be reliably backfilled.
C. C. above. According to the configuration of (Claim 3), the extension apron is provided with a plate that prevents the soil flowing out from the side shield from flowing out of the extended apron, so the groove formed on the soil surface by the chain transmission case is backfilled. The soil can be leveled by the extended apron, and the plate can prevent the soil flowing out from the side shield from flowing outside the extended apron.
D. D. above. With the configuration of (Claim 4), the side shield can be adjusted up and down in accordance with the working depth of the rotary work machine, so that the amount of soil flowing into the side shield is appropriately adjusted and formed on the soil surface by the chain transmission case. It is possible to reliably backfill the groove.

The best mode for carrying out the present invention will be specifically described below with reference to the accompanying drawings.
1 is a side view of a rotary tiller that employs a chain transmission case groove eraser according to the present invention, FIG. 2 is a front view of an arrow A portion of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG. 4 is a side view of a side shield portion according to the present invention, FIG. 5 is a plan view thereof, FIG. 6 is a plan view of a spacer of the side shield, FIG. 7 is a partial plan view of a rotary tiller, and FIG. FIG. 2 is a side view of the rotary tiller of FIG.

  1 to 3, reference numeral 1 denotes a rotary tiller. The rotary tiller 1 includes a main frame 2 having a top mast 3 and a lower link connecting pin (not shown). The auto hitch coupler 4 connected to a three-point link hitch mechanism (not shown) is connected to the top mast 3 and the lower mast. It is designed to be automatically attached to and detached from the link connecting pin. Rotational power is transmitted to the input shaft 5 that protrudes forward from a gear box (not shown) supported by the main body frame 2 via a universal joint and a transmission shaft. A transmission frame 6 extending in the horizontal direction from the center is integrally connected to the main body frame 2, and both a chain transmission case 7 and a support frame (not shown) are provided at both left and right ends of the transmission frame 6. An upper end portion is connected, and a side drive type rotary tillage portion 8 is formed between the chain transmission case 7 and a lower position of the support frame.

  The chain transmission case 7 is provided with a grounding protection cover 9 at the lower end and a side protection cover 10 at the lower outer surface, and the chain transmission case 7 by soil when the lower end of the chain transmission case 7 is grounded. To prevent and protect the wear. The upper part of the rotary tiller 8 is covered with a shield cover 11, and the front end of the apron 12 is pivotally supported on the rear end of the shield cover 11 via a hinge 11a so as to be rotatable up and down. On the left and right sides of the rear end portion of the apron 12, as shown in FIG. 7, an extended apron 14 is provided via a rotation support member 13 so that it can be folded (tilted) between a working position and a storage position. At the side end of the extended apron 14, excess soil that has flowed out of a side shield 17 to be described later and backfilled a groove formed on the soil surface by the chain transmission case 7 does not flow out of the extended apron 14. The plate 15 for preventing the soil from flowing out is provided. A compression rod 16 is interposed between the upper surface of the apron 12 and the main body frame 2, and the apron 12 and the extended apron 14 are repressed by the set pressure of the compression rod 16.

  A side shield 17 according to the present invention is mounted on the outer peripheral edge of the rear end portion of the chain transmission case 7 so that the vertical movement can be adjusted. As shown in detail in FIGS. 2 and 4 to 7, the side shield 17 is configured such that the side plate 20 is attached to the support member 18 attached to the outer peripheral edge of the rear end portion of the chain transmission case 7 via a spacer 19. It is supported in a state of being inclined inward with respect to the traveling direction. Accordingly, the side shield 17 is open at the front and rear, and a bag-like space is formed between the support member 18 and the side plate 20 via the spacer 19. Further, the side plate 20 and the spacer 19 are attached to the support member 18 so that the vertical movement can be adjusted. The vertical movement adjustment of the side plate 20 and the spacer 19 with respect to the support member 18 is performed when the plowing depth by the rotary tiller 8 of the rotary tiller 1 in FIG. 1 is 200 mm in the field, and the contact height of the apron 12 is 250 mm. The support height of the side plate 20 and the spacer 19 is set according to the contact height of the apron 12. When the plowing depth by the rotary tiller 8 of the rotary tiller 1 is 300 mm as shown in FIG. 8, the contact height of the apron 12 is 350 mm, and the support height of the side plate 20 and the spacer 19 is set according to the contact height of the apron 12. Is adjusted.

  And the side shield 17 is filled with the groove | channel formed in the soil surface by the chain transmission case 7 by the soil which flowed forward in the bag-shaped part between the supporting member 18 and the side plate 20 with the advance of the body. Return and flatten. Further, since the side plate 20 of the side shield 17 is inclined inward with respect to the aircraft traveling direction, the soil that has flowed into the side shield 17 is stored in the bag-like portion so as to be held by the side plate 20 and soiled. Therefore, the groove formed on the soil surface by the chain transmission case 7 can be sufficiently backfilled.

  The groove formed on the soil surface by the chain transmission case 7 is backfilled by the soil flowing into the bag-like portion of the side shield 17. The amount of soil for backfilling is the groove formed by the chain transmission case 7. Because of this, a sufficient amount is needed to backfill. Excess soil may be generated after the ditch is backfilled, but this excess soil is leveled by the plate 15 provided at the side end of the extended apron 14 and does not flow out of the extended apron 14. . Moreover, since the side shield 17 can be adjusted up and down according to the plowing depth of the rotary work machine 1, the amount of soil flowing into the side shield 17 can be appropriately adjusted. The groove formed on the surface can be appropriately backfilled. The rotary tiller 1 is provided with a gauge wheel (not shown) for presetting the tilling depth of the rotary tiller 8.

  In the rotary cultivator 1 configured as described above, the cultivator 1 is attached to the rear portion of the tractor and is introduced into, for example, a field to perform tillage and leveling work. The power input to the input shaft 5 is transmitted to the chain transmission case 7 via the gear box and the transmission frame 6, and the rotary tiller 8 is driven to rotate in a predetermined direction to perform the tilling work, and the cultivated soil Is leveled by the apron 12 and the extended apron 14 which are repressed by the compression rod 16. The tilling depth of the rotary tiller 8 is set in advance by a gauge wheel as shown in FIGS. 1 and 8, for example. The side shield 17 is adjusted up and down in advance based on the setting of the tilling depth of the rotary tiller 8.

  As is apparent from FIGS. 1 and 8, the plowing depth by the rotary plowing portion 8 is a depth at which the lower end of the chain transmission case 7 enters the plowing soil, and a continuous groove is formed in the plowing soil. Become. On the other hand, the cultivated soil flows into the bag-like portion formed between the support member 18 and the side plate 20 with the progress of the fuselage with respect to the side shield 17 behind the chain transmission case 7, It is discharged rearward from the shield 17, and the groove formed on the soil surface is backfilled by the chain transmission case 7. The soil backfilled with the ditch is leveled by the apron 12 and the extended apron 14 together with the other cultivated soil. Even when there is a surplus in the soil where the ditch is backfilled, the soil is leveled by the plate 15 provided at the side end of the extended apron 14 and does not flow out of the extended apron 14. Therefore, work in the next process, for example, sowing work can be performed satisfactorily, and the seeder wheel falls into the groove formed by the chain transmission case, tilting the machine body, and hindering the work. There is no.

  With the chain transmission case groove erasing device of the present invention, the groove formed on the soil surface by the chain transmission case can be reliably backfilled and flattened by the soil flowing into the side shield.

It is a side view of the rotary plowing device provided with the chain transmission case groove erasing device according to the present invention. It is a front view of the arrow A part of FIG. It is the BB sectional view taken on the line of FIG. It is a side view of the side shield part by this invention. It is the same top view. It is a top view of the spacer of a side shield. It is a partial top view of a rotary tiller. It is a side view of the state which deepened the plowing depth in the rotary tiller of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rotary tillage device 2 Main body frame 3 Top mast 4 Auto hitch coupler 5 Input shaft 6 Transmission frame 7 Chain transmission case 8 Rotary tilling part 9 Ground protection cover 10 Side surface protection cover 11 Shield cover 11a Hinge 12 Apron 13 Rotation support member 14 Extension Apron 15 Plate for preventing soil flow 16 Compression rod 17 Side shield 18 Side shield support member 19 Spacer 20 Side shield side plate

Claims (4)

A side drive type rotary agricultural work machine provided with a chain transmission case and an apron having a side shield at a side end of the work machine,
The side shield is formed in a bag shape into which the soil in front flows, and the soil formed in the side shield is backfilled and flattened by a groove formed on the soil surface by the chain transmission case. Transmission case groove eraser.   2. The chain transmission case groove erasing device according to claim 1, wherein the side plate of the side shield is inclined with respect to the airframe traveling direction.   The extended apron is provided at a side end of the apron, and the extended apron is provided with a plate that prevents the soil flowing out from the side shield from flowing out of the extended apron. Chain transmission case groove eraser.   The chain transmission case groove eraser according to claim 1 or 2, wherein the side shield can be adjusted up and down in accordance with the working depth of the rotary working machine.

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