JP2014008029A - Levee plastering machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a levee plastering machine capable of performing a top place treatment of an old levee at a constant scraping rate in accordance with the height of the old levee.SOLUTION: A top place treating rotor 41 attached to the leading end of a rotor supporting member 42 can be vertically rocked by the rotation of the rotor supporting member 42, and a rotation center axis 41a of the top place treating rotor 41 is equipped with a grounding member 50 shorter than a tilling pawl 44. The rotor supporting member 42 is urged to rotate downward by dead weight. The grounding member 50 has a grounding face 52 shaped in an arcuate shape on the center of the rotation center axis 41a, and a central angle is made at least a rotatable angle of the rotor supporting member 42.

Description

  The present invention relates to a wrinkle coater having a working unit for breaking up the old field and slope before trimming.

When weeds grow on the upper surface of the old fence and the upper surface (Tenba) of the old fence is hard, the boundary between the old fence and the new fence will be formed when trying to form the new fence on it. May be easily separated, and there is a possibility that the new cake will be easily broken after formation. For this reason, there has been developed a coater that provides a celestial processing rotor that cuts off the celestial field of the old fence in front of the pre-processing section and forms a new ridge on the upper surface of the celestial-treated old fence.
As described in Japanese Patent Application Laid-Open No. 2004-133620, such a glazing machine energizes the heaven field processing unit to the old heavens field by a compression spring and also uses a guide wheel rotatably supported. Some are configured to restrict the downward movement of the processing unit. This wrinkle coater is formed in a box-like shape with a support bar protruding upward at the top of the machine base that is open on the lower side, and it can be moved up and down via a compression spring on a metal fitting provided on the machine base It is provided with a support rod that is elastically supported on the surface. The celestial processing unit moves up and down while performing the celestial processing while following the former stadium.

Japanese Utility Model Publication No. 61-182204

  However, since the guide wheel described in Patent Document 1 is disposed outside the excavation range of the tilling claw (in the literature, the shaving blade blade) that performs the top field processing, When tilting to the left or right with respect to the direction of travel or when the height is different, the amount of heaven breaks will increase or decrease, and the amount of heaven breaks cannot be made constant. There is a fear.

  Therefore, an object of the present invention is to provide a wrinkle coater capable of performing old-field processing of the old fence with a fixed amount of cutting regardless of the state of the old fence's heaven and the height of the fence.

  The glazing machine according to the first aspect of the present invention is a celestial process in which the front part of the fuselage is mounted on the traveling machine body, and is disposed at a position offset laterally with respect to the traveling position of the traveling machine body, and cuts off the heaven field of the old carp. A turf coater having a rotor and having a pre-treatment section supported by the fuselage and a heaven-field treatment section supported by the fuselage and a pre-treatment rotor that cuts the old culvert and depositing the soil A rotor support member that is connected to the rotation shaft of the pretreatment rotor so as to be freely rotatable within a predetermined angle range, the other end side of which is swingable in the vertical direction, and that the other end side rotatably supports the heavenly processing rotor; A grounding member provided on the front side of the traveling body of the traveling machine body with respect to the heavenly field processing rotor and formed with a grounding surface to be grounded to the heavenly field of the old fence, and a rotating shaft of the rotor support member and the heavenly field processing rotor The grounding surface of the grounding member is parallel to the rotation axis of the Wherein the distance from the axis are formed to be constant.

  A brush coater according to a second aspect of the present invention is the brush coater according to the first aspect of the present invention, wherein the grounding surface of the grounding member is at least the top of the top of the field processing rotor support member around the rotation axis of the field processing rotor. It is formed in the range beyond the angle range which can be rotated.

  A brush coater according to a third invention is the brush coater according to the first invention or the second invention, wherein the grounding surface of the grounding member has an arc shape centering on the rotation axis of the heavenly processing rotor. The arc is a perpendicular line from the rotation axis of each celestial processing rotor when the rotor support member swings to the uppermost position and when the rotor support member swings to the lowermost position. It is characterized by having an intersection with.

  A hull coater according to a fourth aspect of the present invention is the hull spreader according to any of the first to third aspects of the invention, wherein the heavenly processing rotor has a plurality of tilling claws extending in the radial direction from the center of rotation. And the ground contact surface of the ground contact member is closer to the rotating shaft of the heaven treatment rotor than the tip of the tilling claw.

  A brush coater according to a fifth aspect of the present invention is the brush coater according to any of the first to fourth aspects of the present invention, wherein the grounding member has a lower surface on the front side in the traveling direction with respect to the ground plane, and is subjected to a heaven treatment. It is characterized by being formed in a shape that warps toward the rotation axis of the rotor.

  A wrinkle coater according to a sixth aspect of the present invention is the wrinkle coater according to any one of the first to fifth aspects, wherein the grounding member is formed in a hemispherical shape, and the spherical surface of the hemispherical body is in contact with it. It is characterized by forming the ground.

  A brush coater according to a seventh invention is the brush coater according to any one of the first to fifth inventions, wherein the grounding member is formed in a cone shape, and the peripheral wall portion of the cone is formed A ground plane is formed.

  ADVANTAGE OF THE INVENTION According to this invention, irrespective of the height of an old iron and the state of a heaven field, the glazing machine which can cut down the heaven field of an old jar with a fixed amount of cutting can be provided.

1 is a plan view of a glazing machine according to an embodiment of the present invention. FIG. It is a fragmentary sectional view of the working part by one embodiment of the present invention. It is a front view of the working part by one embodiment of the present invention. It is a figure explaining operation | movement of the heaven field process part and grounding member by one embodiment of this invention. It is a figure explaining rotation operation of the rotor support member by one embodiment of the present invention. It is a side view of the operation | work part which performs the glazing operation | work in one embodiment of this invention. It is the schematic for showing the positional relationship of the grounding member and tilling nail | claw by one embodiment of this invention. It is the schematic for showing the positional relationship of the grounding member and the tilling nail in the modification of this invention. It is a front view of the heaven processing part in the modification of this invention. It is explanatory drawing for demonstrating the action | operation of the heaven field process part of a working part and the grounding member in one embodiment of this invention. It is a side view of the operation | work part which performs the glazing operation | work in the modification of this invention. It is the schematic for showing the positional relationship of the grounding member and the tilling nail in the modification of this invention. It is a side view of the operation | work part which performs the glazing operation | work in the modification of this invention.

  Hereinafter, a preferred embodiment of a coater 1 according to the present invention will be described with reference to FIGS. The present embodiment will be described with reference to an example of a coater 1 that performs a coat operation in accordance with the forward traveling of the traveling machine body 90. First, the overall configuration of the glazing machine 1 will be described with reference to FIGS. 1 shows a plan view of the brush coater 1 with the working unit 30 moved to the storage position, FIG. 2 shows a partial sectional view of the working unit 30, and FIG. 3 shows a front view of the working unit 30. .

  As shown in FIG. 1, the wrinkle coater 1 is connected to a three-point link connection mechanism (not shown) provided at the rear portion of the traveling machine body 90 and proceeds according to the forward traveling of the traveling machine body 90. The wrinkle coater 1 is attached to the mounting unit 10 by the mounting unit 10 that is mounted on the traveling machine body 90 and includes an input shaft 11 a to which power from the traveling machine body 90 is input, and the turning cylinder 13 provided in the mounting unit 10. An offset mechanism 20 that is movable in the mounting portion width direction (hereinafter referred to as “left-right direction”) and a rotary drive shaft 21 that extends in the vertical direction to the moving end side (rear end side) of the offset mechanism portion 20 are rotated. And a working unit 30 that is disposed so as to be pivotable in the horizontal direction as a moving fulcrum O and that works at a position offset laterally with respect to the traveling position of the traveling machine body 90 by the power transmitted from the input shaft 11a. It becomes.

  A gear box 11 is provided at the lower center of the mounting portion 10 in the left-right direction, and the above-described input shaft 11 a is provided in the gear box 11. The input shaft 11a is configured to transmit power from a PTO shaft (not shown) of the traveling machine body 90 via a transmission shaft (not shown).

  The offset mechanism unit 20 has a front end side rotatably connected to the mounting unit 10 and extends rearward. The offset mechanism unit 20 is provided along the left side of the offset frame 22 so that the front end side is rotatable to the mounting unit 10. The link member 23 is connected. A connecting arm member 25 connected to the rear end portion of the offset frame 22 is rotatably attached to the rear end side of the link member 23. The offset mechanism portion 20 forms a parallel link mechanism by the offset frame 22, the link member 23, the mounting portion 10, and the connecting arm member 25.

  The offset frame 22 can swing in the left-right direction by the expansion and contraction of the turning cylinder 13 described above, and is provided on the rear end side of the offset frame 22 via a power transmission mechanism (not shown) provided in the offset frame 22. The rotary drive shaft 21 extending in the vertical direction is driven to rotate.

  A rotation shaft case 32 is provided outside the rotation drive shaft 21 to cover it. An upper end portion of the rotary shaft case 32 is rotatably connected to a lower portion of the rear end of the offset frame 22, and is attached to a lower end portion of the rotary shaft case 32 with the working unit 30 fixed. In addition, a connecting arm member 25 is rotatably provided on the rotating shaft case 32 with respect to the rotating shaft case 32.

  The working unit 30 can be rotated by expansion and contraction of a telescopic cylinder connected between the connecting arm member 25 and the rotary shaft case 32, and the working direction of the working unit 30 is relative to the swinging of the offset mechanism unit 20. The traveling body 90 is held in parallel with the traveling direction.

  The working unit 30 includes a heaven field processing unit 40 that cuts the upper part of the old fence formed along the periphery of the field, a pre-processing unit 60 that piles up the cut soil, and the piled soil is cut by the outer peripheral surface. And a trimming unit 70 as a rotating body to be coated on the old scissors.

  As shown in FIGS. 1 and 2, the trimming unit 70 includes a polyhedron drum 73 attached to a rotation center shaft 71 that extends in the left-right direction with respect to the traveling direction and is rotatably supported. A cylindrical portion 75 is attached to the right end and extends in the lateral direction. The trimming unit 70 is connected to and supported by the rotary shaft case 32 via a trimming power transmission case 77. An adjustment power transmission mechanism (not shown) is built in the adjustment power transmission case 77, and this adjustment side power transmission mechanism is connected to the rotation drive shaft 21 and supplies power from the rotation drive shaft 21 to the adjustment section 70. To communicate.

  As shown in FIGS. 2 and 3, the preprocessing unit 60 includes a rotatable preprocessing rotor 61. The pretreatment rotor 61 is connected to and supported by the rotary shaft case 32 via a pretreatment power transmission case 62. In the preprocessing power transmission case 62, a preprocessing side power transmission mechanism 64 having a preprocessing side drive shaft 65 that rotates by receiving power from the rotary drive shaft 21 is incorporated. A pretreatment rotor 61 is connected to the tip end of the pretreatment side drive shaft 65, and the rotation center shaft 61a of the pretreatment rotor 61 is arranged so as to face an acute angle with respect to the direction in which the old rod Uk extends. Therefore, the pretreatment rotor 61 rotates in an oblique direction with respect to the direction in which the old basket Uk extends.

  The heaven field processing unit 40 includes a rotor support member 42 whose base end portion is rotatably supported by a rotation shaft 63 extending from the distal end portion of the rotation center shaft 61 a of the pretreatment rotor 61, and a distal end portion of the rotor support member 42. Is attached to the rotation center shaft 41a, and a plurality of tilling claws 44 are radially attached to the heaven processing rotor 41, a heaven cover 47 that covers the heaven processing rotor 41, and an old fox ground. Thus, the grounding member 50 is provided for making the amount of heaven cut by the heaven processing rotor 41 constant. Further, since the proximal end portion of the rotor support member 42 is connected to the front side of the pretreatment rotor 61 and the distal end portion is connected to the rear side of the heaven treatment rotor 41, the heaven treatment rotor 41 is the pretreatment rotor. It is arranged on the front side in the traveling direction from 61.

  The rotor support member 42 is disposed between the pretreatment rotor 61 and the heaven treatment rotor 41 and extends in a direction orthogonal to the rotation center axis 41 a and the rotation axis 63 of the heaven treatment rotor 41. Therefore, the heavenly processing rotor 41 can swing up and down in accordance with the rotation of the rotor support member 42. The rotor support member 42 is urged so as to rotate downward due to its own weight. Further, the rotation support shaft 42 of the pretreatment rotor 61 and the rotation center shaft 41 a of the heavenly processing rotor 41 are arranged in parallel by the rotor support member 42. Therefore, the rotational direction of the heavenly processing rotor 41 is oblique with respect to the direction in which the old iron Uk extends, as with the preprocessing rotor 61.

  The heaven cover 47 rotates with the rotation of the rotor support member 42 whose base end is rotatably supported by the rotation shaft 63. Further, the vicinity of the tip end portion of the rotor support member 42 is connected to the support member 34 attached to the rotary shaft case 32 via the telescopic rod 35. Specifically, the telescopic rod 35 includes a proximal end side rod 36a formed in a cylindrical shape as shown in FIG. 1 and a distal end side rod 36b that is inserted into the proximal end side rod 36a and is freely projectable. Have.

  The proximal end side rod 36a is provided with a proximal end side hole portion through which the pin 37 can be inserted and removed, and the distal end side rod 36b has a plurality of distal end side hole portions arranged at predetermined intervals in the axial direction. Is provided. The distal end side hole is communicated with the proximal end side hole so that the pin 37 can be inserted and removed. For this reason, by inserting the pin 37 in a state where the distal end side rod 36b protrudes from the proximal end side rod 36a and any one of the distal end side hole portions communicates with the proximal end side hole portion, the rod The distal end side rod 36b can be fixed to the proximal end side rod 36a with the length of the portion 36 adjusted.

  The proximal end side rod 36a is supported so as to be movable in the extending direction of the rod 36 with respect to the support member 34, and is urged to the side where the rod 36 extends by a compression spring 39 attached to the proximal end side rod 36a. . Further, the rod 36 is provided in a state of facing obliquely downward so that the distal end side thereof is positioned below the proximal end side. Therefore, the compression spring 39 urges the heaven processing rotor 41 and a grounding member 50 described later via the support member 42, and the compression spring 39 compresses and deforms the celestial processing rotor 41 and the grounding member 50. Alleviates the upward impact force that acts.

  As a result, as shown in FIG. 4A, the length of the telescopic rod 35 is adjusted so that the rotor support member 42 is rotated upward so that the celestial processing rotor 41 is in the uppermost position, and placed on the bowl. The height of the eyelids to be shaped can be set to the highest. On the other hand, when the rotor support member 42 is rotated downward to adjust the length of the telescopic rod 35 so that the celestial processing rotor 41 is at the lowest position and placed on the ridge, FIG. 4 (c) shows. Thus, the height of the eyelid to shape can be set to the lowest. Moreover, as shown in FIG.4 (b), by selecting the hole which inserts the pin 37 suitably, it can also set to the attitude | position suitable for wrinkle shaping of the height of both intermediate positions.

  As shown in FIGS. 6 and 7, the celestial cover 47 has a portion that covers the rear side of the celestial processing rotor 41 fixed to the rotor support member 42, and a part of the portion that covers the front side of the celestial processing rotor 41. Is attached to the tip of the rotation center shaft 41a by a fixing member 54. Further, the fixing member 54 fixes the grounding member 50 to the front side of the heaven cover 47, and the grounding member 50 moves up and down integrally with the heaven processing rotor 41 by the rotation of the rotor support member 42.

  As shown in the schematic diagram of FIG. 7, the grounding member 50 is formed at a right angle to the lower end of the connecting portion 51 and the lower end of the connecting portion 51 that are connected to the rotation center shaft 41 a via the fixing member 54, and the lower surface is the top of the old roof. A grounding surface 52 that contacts the field, and a sloped portion 53 that is formed at the front end portion of the grounding surface 52 and whose front side slopes upward.

  The ground contact surface 52 is a plate-like member that extends in the forward direction from the lower end of the coupling portion 51 in parallel to the rotation center axis 41a, and forms a circular arc centered on the rotation center axis 41a in a front view. The center angle α of the arc is formed at 50 ° in the present embodiment. Accordingly, the grounding surface 52 is a part of a cylindrical peripheral wall having the rotation center axis 41a as a central axis, and a portion corresponding to the outer peripheral wall is grounded to the old fence.

  The inclined portion 53 is a plate-like member that extends obliquely upward from the front end portion of the ground contact surface 52 as it advances forward. Note that, as in the modification shown in FIG. 8A, the length of the ground contact surface 52 in the front-rear direction may be shortened, and the shape of the inclined portion 53 may be curved in a side view. As in the modification shown in b), the curve may be an arc-shaped hemisphere centered on the contact point between the fixing member 54 and the connecting portion 51 in a side view. By doing in this way, even if unevenness etc. exist in a heaven scene, the heaven field processing rotor 41 can be smoothly moved up and down to follow.

  FIG. 5 shows a position where the rotation shaft 63 which is the rotation shaft of the rotor support member 42 and the rotation center axis 41a of the heavenly processing rotor 41 are at the same height (that is, a set position where the height of the heel is the lowest). ) Is the lower limit position of rotation of the rotor support member 42, and the position where the rotor support member 42 is rotated by θ from the lower limit position of rotation is indicated as the upper limit position of rotation (that is, the set position where the heel height is maximum). FIG. In the present embodiment, the rotatable angle range θ of the rotor support member 42 is 50 °, but this is an example, and the angle range may be larger or smaller than this.

  As shown in FIG. 4, when the rotor support member 42 is in the rotation upper limit position, the grounding surface portion 52 a of the grounding member 50 exists in the vertical direction of the rotation center axis 41 a of the heavenly processing rotor 41, and the rotor support When the member 42 is at the rotation lower limit position, the grounding surface portion 52c of the grounding member 50 exists in the vertical direction of the rotating shaft 41a of the heaven field processing rotor 41. As described above, even if the setting height of the ridge to be shaped is different, since the ground contact surface 52 always exists in the vertical direction of the rotation center shaft 41a, the center angle α of the ground contact surface is determined by the rotor support member 42. What is necessary is just to be more than the angle (theta) which can be rotated.

  With such a configuration of the grounding member 50, the distance between the grounding surface 52 and the lower end of the rotation locus X of the tilling claw 44 is constant. That is, the ground contact surface 52 is always located at a certain distance from the central axis 41a immediately below the central axis 41a.

  For example, as shown in FIG. 5, when the rotor support member 42 is set at the rotation lower limit position, the grounding member 50 moves following the unevenness of the top scene and the like, and the support member 42 changes by the angle Δθ. In this case, the installation position of the ground contact surface 52 of the ground contact member 50 also changes by an angle range of Δθ. However, since the ground contact surface 52 has an arc shape centered on the rotation center axis 41 a of the heavenly processing rotor 41, The depth is kept constant.

  Next, the amount of heaven cut by the heaven field processing rotor 41 when the grounding member 50 is grounded to the old fence heaven field will be described with reference to FIG. First, the rotor support member 42 is rotated to ground the grounding surface 52 of the grounding member 50 on the heaven field Ut of the old kite Uk. Since the distance from the rotation center axis 41a to the grounding surface 52 is shorter than the distance from the rotation center axis 41a to the tip of the tilling nail 44, when the grounding surface 52 contacts the heaven Ut, the tip of the tilling nail 44 is Below the heaven Ut. Then, when the traveling machine body is caused to travel along the old fence Uk and the hammer coater 1 is driven, the heaven processing rotor 41 rotates in the direction of arrow A as shown in FIG. The heaven Ut is cut away, and the shaved soil is released to the pretreatment rotor 61 side. On the other hand, the pretreatment rotor 61 rotates in the direction of the arrow B to cut the side surface Us of the old paddle Uk, and discharges the cut soil to the side of the old paddle Uk to perform filling. The trimming unit 70 (see FIG. 1) smears the piled up soil on the old sheared Uk.

  For example, when the grounding member 50 moves to a place with a low height or a concave portion of the heaven field Ut in the case where the heaven field Ut of the old fence Uk has undulation or the heaven field Ut has irregularities, the heaven field Ut is adjusted to match the heaven field Ut. The grounding member 50 is lowered. As the grounding member 50 is lowered, the rotor support member 42 swings downward on the rotating shaft 63 as a fulcrum, and the heavenly processing rotor 41 is lowered. On the other hand, when the grounding member 50 moves to a place where the height of the heaven field Ut is high or a convex portion of the heaven field Ut, the grounding member 50 rises according to the heaven field Ut. As the grounding member 50 rises, the rotor support member 42 swings upward on the rotating shaft 63 as a fulcrum, and the heavenly processing rotor 41 rises. Therefore, even in such a case, the heaven field processing rotor 41 moves up and down according to the grounding member 50 that moves up and down in accordance with the state of the heaven field Ut of the old fence Uk. The amount of cutting of the heaven Ut can be maintained at a constant Y.

  In this way, the coater 1 of the present application can smoothly move the celestial processing rotor 41 up and down in accordance with the undulations and irregularities of the celestial field Ut of the old basket Uk. Even if the top field processing rotor 41 moves up and down, the distance between the ground contact surface 52 that contacts the top field Ut of the old basket Uk and the tip of the tilling claw 44 is always constant. Regardless of the undulations and irregularities of the heaven field Ut, the amount of the turret Ut of the old kite Uk by the heaven field processing rotor 41 can be made constant. In this way, since the Xinjiang heaven field is formed on the heaven field cut to a certain depth, the Xinjiang heaven field is stably formed, and the formed Xinjiang heaven field is difficult to collapse. can do.

  Moreover, in order to make the amount of cutting of the heaven field Ut of the old paddle Uk by the heaven field processing rotor 41 constant, a simple structure is used. That is, the ground contact surface 52 of the ground contact member 50 has an arc shape centered on the rotation center shaft 41a so that the distance from the rotation center shaft 41a is constant in the rotation direction of the rotor support member 42. With such a simple structure, it is possible to keep the cutting amount of the heaven field Ut of the old fence Uk by the heaven field processing rotor 41 constant following the undulation of the heaven field Ut of the old fence Uk. Therefore, it is possible to suppress the material cost for making the amount of cutting of the heaven Ut constant, and to reduce the damage and failure of the member and improve the maintainability.

  In the present embodiment, the shape of the ground contact surface 52 of the ground contact member 50 is formed in an arc shape centered on the rotation center axis 41a in the front view, and the center angle α of the arc is within the rotatable range of the rotor support member 42. A little bigger. However, the present invention is not limited to this, and the shape of the ground contact surface 52 of the ground contact member 50 is formed in a circular shape centered on the rotation center axis 41a when viewed from the front (center angle), for example, as in the modification shown in FIG. α may be 360 °). In this case, the shape of the inclined portion 53 formed at the front end portion of the ground contact surface 52 is also a circular shape centered on the rotation center axis 41a in the front view, so that the ground contact member 50 becomes a substantially truncated cone. You may provide the cover part 55 in the upper surface part (surface which connects the front-end parts of the inclination part 53). Although not shown, the ground contact surface 52 and the inclined portion 53 may be formed in a circular shape when viewed from the front, and the inclined member 53 may be extended to extend the ground member 50 into a substantially conical shape.

  Further, the modification shown in FIG. 8 (a) is further modified in which the length of the ground contact surface 52 in the front-rear direction is shortened and the shape of the inclined portion 53 is curved in a side view. As shown, it may be formed in a circular shape centered on the rotation center angle 41a in the front view. In this case, the grounding member 50 has a hemispherical shape in which the rear side of the sphere centering on the contact point between the connecting portion 51 and the rotation center shaft 41a is cut off, and the circumference of the flat portion of the hemisphere is as shown in FIG. It becomes the ground contact surface 52.

  As described above, when the grounding member 50 according to the modification shown in FIG. 8B or FIG. 8C is used, soil does not accumulate on the upper surface side of the grounding member 50. Furthermore, even if a part of the ground contact surface 52 is worn by repeated grounding of the old fence Uk to the heaven Ut, for example, by rotating the grounding member 50 halfway upside down, It becomes possible to replace a portion that is frequently grounded with the heaven Ut. If the ground contact surface 52 is long as shown in FIG. 8C, a more stable operation can be performed.

  In the present embodiment, the rotation center shaft 61a of the pretreatment rotor 61 intersects at an acute angle with respect to the direction in which the old rod Uk extends. However, the present invention is not limited to this, and the rotation center shaft 61a extends on the old rod Uk. You may arrange | position so that it may become parallel with respect to a direction. In this case, the pretreatment rotor 61 rotates in the direction perpendicular to the direction in which the old basket Uk extends.

  In the present embodiment, the heavenly processing rotor 41 is attached to the front surface side of the rotor support member 42 as shown in FIGS. 6 and 7, but the present invention is not limited to this, and the modification shown in FIG. As described above, the heavenly processing rotor 41 may be attached to the rear surface side of the rotor support member 42. That is, the portion of the heaven cover 47 that covers the front side of the heaven processing rotor 41 is fixed to the rotor support member 42, and the grounding member 50 is fixed to the front side of the heaven cover 47.

  Further, the modified example of the heaven field processing unit 40 shown in FIG. 11 may be further modified so that the shape of the inclined portion 53 is curved in a side view as shown in FIG. Further, as shown in FIG. 12B, the shape of the grounding member 50 may be a hemispherical shape in which the rear side of the sphere centering on the contact point between the rotation center shaft 41a and the front portion of the rotor support member 42 is cut off. . Further, as shown in FIG. 12C, the shape of the grounding member 50 may be formed in a substantially truncated cone shape.

  Further, in the present embodiment, the grounding member 50 is fixed to the heaven cover 47 according to the rotation of the rotor support member 42 by being fixed to the heaven cover 47 fixed to the rotor support member 42. Move up and down. Therefore, as shown in FIGS. 4A to 4C, when the rotor support member 42 rotates, the grounding member 50 rotates around the rotation center shaft 61a. However, the present invention is not limited to this, and the grounding member 50 may be connected to the tip of the rotation center shaft 41a via a bearing 54b (bearing mechanism) as in the modification shown in FIG.

  In this case, since the grounding member 50 is attached via the bearing 54b, the grounding member 50 is freely rotated by contact with the heaven Ut of the old rod Uk regardless of the rotation of the tilling claw 44. As a result, the ground contact surface 52 smoothly follows and touches the heaven field Ut of the old fence Uk, and it is possible to improve the ability to cope with the unevenness of the heaven field Ut of the old fence Uk.

DESCRIPTION OF SYMBOLS 1 Spider coater 30 Working part 35 Telescopic rod 40 Top field processing part 41 Top field processing rotor 41a Rotation center axis 42 Rotor support member 44 Claw 47 Top field cover 50 Grounding member 51 Connecting part 52 Grounding surface 53 Inclining part 54 Fixing member 54b Bearing 55 Lid 60 Pre-processing part 61 Pre-processing rotor 61a Rotation center shaft 90 Traveling machine body Uk Former Ut Uten

Claims (7)

The front part of the aircraft is mounted on the traveling aircraft, and is placed at a position offset laterally with respect to the traveling position of the traveling aircraft, and has a heaven processing rotor that cuts off the old celestial heaven and is supported by the aircraft. A field coater and a pre-coating machine that has a pre-processing rotor that cuts an old paddle and fills it with a pre-processing unit supported by the fuselage,
A rotor support member that is connected to the rotating shaft of the pretreatment rotor so that one end side thereof is rotatable within a predetermined angle range, and that the other end side is swingable in the vertical direction, and that the other end side rotatably supports the heavenly processing rotor. When,
A grounding member provided on the front side of the traveling body of the traveling aircraft from the heaven processing rotor, and formed with a grounding surface to be grounded to the heaven of the old fence,
The rotation axis of the rotor support member and the rotation axis of the heavenly processing rotor are parallel,
A ground coater, wherein the grounding surface of the grounding member is formed so that the distance from the rotation axis of the heavenly processing rotor is constant.   The grounding surface of the grounding member is formed in a range at least equal to or greater than an angular range in which the celestial processing rotor support member can rotate, with the rotational axis of the celestial processing rotor as the center. Vase coater.   The grounding surface of the grounding member has an arc shape centering on the rotation axis of the celestial processing rotor, and the arc is formed when the rotor support member is swung to the uppermost position and when the rotor support member is at the lowermost position. 3. The coater according to claim 1, further comprising an intersection with a vertical line from a rotation axis of each of the celestial processing rotors when the oscillating member is oscillating. The heaven field processing rotor has a plurality of tilling claws extending in the radial direction from the rotation center,
The ground coater according to any one of claims 1 to 3, wherein the ground contact surface of the ground contact member is closer to the rotating shaft of the heaven treatment rotor than the tip of the tilling claw.   5. The grounding member according to claim 1, wherein a lower surface on the front side in the traveling direction with respect to the grounding surface is formed in a shape in which the grounding member is warped toward the rotation axis of the heavenly processing rotor.畦 coating machine.   6. The drape coater according to claim 1, wherein the grounding member is formed in a hemispherical shape, and a spherical surface of the hemispherical body forms a grounding surface. The grounding member is formed in a cone shape, and the peripheral wall portion of the cone forms a grounding surface.

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