JP2011172517A - Levee-forming machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a levee-forming machine which can ensure a sufficient offset quantity without enlarging the bent angle of a universal joint in an offset mechanism portion and is good in working balance. <P>SOLUTION: In the levee-forming machine, a driving case having an intermediate input shaft projected on the front side orthogonal to the horizontal rotation shaft 22 of a working portion 30 is fixed and disposed to the support frame 21. An input shaft 15 placed in the laterally central portion of a mounting portion 11 is connected to the intermediate input shaft of the driving case via the universal joint 71, and the horizontal rotation shaft 22 on the mounting portion 11 side of the support frame 21 in the plan view is arranged at a place deviated in the direction lateral to the center of the input shaft 15 and deviated to the backward side from the position of the bent yoke 711 on the input shaft 15 side of the universal joint 71. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a scissor forming machine that is attached to a tractor and performs an operation by offsetting a working portion to the side of the tractor to repair an old scissors and form a new scissors. Specifically, the present invention relates to an offset structure of the ridge forming working unit.

Conventionally, it has a bank part and a ridge forming part made of a conical disk, and the soil is raised on the old paddle by the bank part, and then the paddle forming part is rotated to compact the bank from above, and a new one is formed on the old paddle. 2. Description of the Related Art A wrinkle forming machine that performs work by offsetting a working unit that forms a wrinkle to the side of a tractor is known.
For example, Japanese Patent No. 4170858 (Prior Art 1) and Japanese Patent Application Laid-Open No. 2001-346405 (Prior Art 2) are disclosed.

Japanese Patent No. 4170858 (prior art 1) JP 2001-346405 A (Prior Art 2)

  It is necessary to adjust the offset amount in accordance with the width of each tractor and perform the work for the scissors forming machine that performs work by offsetting the working part to the side of the tractor and running the side of the scissors forming the tractor. . Moreover, when reverse work is performed by reversing the working part in order to process the remaining part of the field corner, the working part must be moved left and right from one side of the tractor to the other side. For this reason, in the conventional working machine, a mounting portion to be mounted on the tractor, a support frame that rotates to the left and right with respect to the mounting portion and supports the working portion on the rotating end side, and power from the input shaft on the mounting portion side There is known a scissor-forming machine such as the prior art 1 or the prior art 2 having a universal joint that is a power transmission shaft body that transmits the power to the intermediate input shaft on the working unit side.

  However, there is a limit on the bending angle at which the power of the universal joint, which is the power transmission shaft body, can be transmitted. The offset amount must be within this range, and the bending angle is relaxed by increasing the length of the support frame. However, in this case, the position of the center of gravity of the working part moves backward, resulting in a problem that work balance is deteriorated.

  For this reason, the present invention has been made to solve such problems, and it is possible to secure a sufficient offset amount without increasing the bending angle of the universal joint that is a power transmission shaft body, and to form a ridge with a good work balance. The purpose is to provide a machine.

  In order to solve the above-described problems, a mounting portion having an input shaft for inputting power from a tractor, a support frame that is pivotally connected to one end of the mounting portion so as to be rotatable, and the support frame rotation A wrinkle forming machine comprising a working unit supported by a vertical horizontal turning shaft provided on the moving end side so as to be horizontally rotatable, wherein the working unit can be moved to the left and right. A drive case having an intermediate input shaft projecting forward and orthogonal to the support frame is fixed to the side of the support frame, and the input shaft located at the left and right center of the mounting portion and the intermediate input shaft of the drive case The horizontal rotation shaft on the mounting portion side of the support frame is offset in the left-right direction from the center of the input shaft in plan view, and the refractive yoke position on the input shaft side of the universal joint. Later We propose a ridge forming machine characterized by being arranged in a position offset to the side.

  Further, the horizontal rotation axis of the working part is provided between the trough forming part and the embankment part of the working part and is provided at a position shifted to the embankment part side in a plan view. Proposal of cocoon forming machine.

  According to the present invention, the drive case having the intermediate input shaft projecting to the front side perpendicular to the horizontal rotation axis of the working unit is fixed to the side of the support frame, and is provided at the left and right center portion of the mounting portion. Because the universal input joint between the input shaft and the drive case intermediate input shaft is connected, there is no need to fold the intermediate input shaft side of the universal joint at a large angle, and the universal joint is located on the side of the support frame. Since the support frame can be disposed at a low position, the center of gravity can be lowered. Further, the horizontal rotation shaft on the mounting portion side of the support frame is displaced in the left-right direction from the center of the input shaft, and is disposed at a position displaced rearward from the refractive yoke position on the input shaft side of the universal joint. With this configuration, the bending angle of the universal joint on the input shaft side can be reduced as compared with, for example, the case where the rotation shaft and the refractive yoke position are made the same, so that an offset amount can be secured.

  In addition, the horizontal rotation axis of the working unit is located between the ridge forming unit and the embankment part of the working unit and is located at a position displaced toward the embankment part in the plan view, thereby When reversed and reversed to the side, it is possible to minimize the movement of the position of the working part in the front-rear direction, and the work balance in each work becomes good.

The right view of the ridge forming machine of the Example of this invention The top view of the ridge forming machine of the Example of this invention The principal part top view of the universal joint part of the forward working state of the Example of this invention The principal part top view of the universal joint part of the reverse work state of the Example of this invention The power system diagram showing the drive system of the ridge forming machine of the Example of this invention

  One embodiment will be described with reference to FIGS. FIG. 1 is a right side view of a crease forming machine showing an embodiment of the present invention, FIG. 2 is a plan view of the crease former similarly showing an embodiment of the present invention, and FIG. 3 is a forward working state of the embodiment of the present invention. FIG. 4 is a plan view of the main part of the universal joint part in the reverse operation state of the embodiment of the present invention, and FIG. 5 is a power representing the drive system of the saddle former of the embodiment of the present invention. It is a systematic diagram.

  Reference numeral 11 denotes a mounting portion provided in the ridge forming machine. The mounting portion 11 is used by being attached to the rear of a tractor (not shown). The mounting portion 11 is provided on the front side in the traveling direction, which is an end portion on the side (right side in FIG. 1) to which the tractor is attached in the ridge forming machine. One top bracket 12 is attached to the center of the upper portion and lower pins 13 and 14 are attached to both ends of the lower portion of the attachment portion 11, respectively, and are connected and attached to the three-point link mechanism of the tractor.

  Reference numeral 15 denotes an input shaft. The input shaft 15 is connected to a PTO shaft (not shown), which is an output shaft for driving force on the tractor side, and transmits the power of the tractor to the saddle former. 21 is a support frame. As shown in FIGS. 2 to 4, the support frame 21 is attached to the mounting portion via a horizontal rotation shaft 22 extending in a substantially vertical direction provided at a position deviated to the left in the forward direction of the mounting portion 11. 11 is attached. For this reason, the support frame 21 rotates in the horizontal plane with respect to the mounting portion 11 with the horizontal rotation shaft 22 as the rotation center.

  23 is an offset cylinder. One end of the offset cylinder 23 is attached to the mounting portion 11. The other end of the offset cylinder 23 is attached to the support frame 21. When the offset cylinder 23 expands and contracts, the support frame 21 rotates in the horizontal plane with the horizontal rotation shaft 22 as the rotation center. The offset cylinder 23 is expanded and contracted, and the support frame 21 is rotated about the horizontal rotation shaft 22 as a rotation center, so that the side with respect to the tractor of the heel forming apparatus which is the working unit 30 provided on the rotation end side of the support frame 21 Adjust the amount of offset to the direction.

  A horizontal rotation shaft 302 of the vertical working unit provided concentrically with the drive shaft that drives the working unit 30 is provided on the side of the support frame 21 turning end side. Is rotated in the horizontal direction by the expansion and contraction of the working part turning cylinder 301 connected to the link arm linked to the support frame 21 side and the working part 30 side. Further, a link frame 211 is provided on the working unit 30 side and the mounting unit 11 side so as to be connected in a horizontally rotatable manner. The link frame 211 has both the rotation shaft and the horizontal rotation shaft 22. A parallel link is formed with the horizontal rotation shaft 302 of the working unit, and when the support frame 21 is rotated, the working unit 30 is moved in parallel.

  A drive case 72 having an intermediate input shaft 721 projecting forward and perpendicular to the horizontal rotation shaft 302 of the working unit is fixed to the side of the support frame 21 rotation end side, The input shaft 15 located at the left and right center of the mounting portion 11 and the intermediate input shaft 721 of the drive case 72 are connected by the universal joint 71, and the power from the tractor transmitted to the input shaft 15 of the mounting portion 11 is the working portion. 30 is transmitted to an intermediate input shaft 721 of a drive case 72 that drives 30.

  The position of the bending yoke 711 on the side connected to the input shaft 15 of the universal joint 71, that is, the bent position, is provided in front of the horizontal rotation shaft 22 of the support frame 21 in the forward direction. Because of this configuration, the intermediate input shaft 721 side of the universal joint 71 does not need to be bent at a large angle, the refraction yoke can be single, and the input shaft 15 side can be a double refraction yoke (wide angle constant velocity joint). Thus, bending can be performed at a larger angle, and the offset amount can be set large.

  FIG. 3 shows a forward working state in which the working unit 30 is offset to the right side of the tractor and the tractor is advanced to work. FIG. 4 shows a reverse work state in which the work unit 30 is offset to the left side of the tractor and the work unit 30 is inverted, and the work is performed by moving the tractor backward to process the remaining portion of the field corner. The horizontal rotation shaft 302 of the working unit is provided at a position that is located between the trough forming unit 31 and the embankment unit 41 of the working unit and is displaced to the plan view embedding unit 41 side. Thereby, coupled with the configuration in which the horizontal rotation shaft 22 of the support frame 21 is displaced to the left and right, the front-rear direction position of the working part 30 in the forward working state and the backward working state is brought closer to the mounting part 11 side. The work balance can be set well.

  31 is a wrinkle formation part. The heel forming portion 31 is attached to the end of the support frame 21 on the rear side in the traveling direction. The wrinkle forming part 31 includes a wrinkle forming part rotating shaft 32, a disk 33, and a cylindrical part 34.

  The disk 33 is in the shape of a truncated cone, and is attached to the ridge forming portion rotation shaft 32 with the distal end side of the truncated cone facing the side surface of the old ridge. A plurality of metal plates are attached to the surface of the disk 33. At the time of the ridge forming operation, the surface of the disk 33 is brought into contact with the embankment raised by the sloped embankment portion 41 of the old culvert side, and the embankment is compacted by rotating and advancing the disk 33, and the side surface of the old culvert is compacted. Form the inclined surface of the Xinjiang side on top. The disk 33 has the necessary strength and weight to be pressed against the ridge to form the heel side surface.

  The cylindrical portion 34 has a horizontal cylindrical shape and is attached to the front end side of the truncated cone of the disk 33. The cylindrical portion 34 is rotated by bringing the outer periphery into contact with the embankment on the upper surface of the old ridge during the ridge forming operation, and forms the upper surface of the new ridge.

  41 is a banking part. The embankment portion 41 is installed immediately before the ridge forming portion 31 on the tractor side, that is, the front side in the traveling direction from the ridge forming portion 31. The embankment portion 41 includes an excavation rotor portion 45 having a plurality of excavation blades 43 radially attached to the rotor rotation shaft 42 and a cover body 44. The excavation blades 43 are attached to the rotor rotation shaft 42 with their tips bent toward the heel inclined surface. The excavation blade 43 excavates the slope and slope skirt of the old dredge and scatters the excavated soil to the dredge side surface and the top surface to form a fill.

  The cover body 44 is provided so as to cover the upper surface of the excavation rotor portion 45, the excavation rotor base portion side, and the rear side in the traveling direction, and prevents the excavation blade 43 from scattering the excavated soil and guides the soil to the dredging side. For this purpose, the heel side of the excavation rotor part 45 is opened, and the surface 441 on the rear side in the traveling direction is provided so as to be inclined rearward from the base side of the excavation rotor part 45 in plan view toward the heel side. .

  The excavation blade 43 excavates the slope of the fence to be excavated and the farm scene in the lower part of the slope, and scatters the soil to raise the soil on the old fence. On the other hand, the disk 33 of the ridge forming portion 31 is rotated in contact with the entire side surface inclined surface of the ridge to form the side inclined surface of the ridge.

  51 is a dredging upper surface earthing device. The dredge upper surface cutting device 51 is installed between the embankment portion 41 and the dredge forming portion 31. The dredge upper surface earthing device 51 includes a dredge upper surface earthing device rotation shaft 52, a rotation shaft side clutch 53, a digging blade side clutch 54, a plurality of digging blades 55, a digging blade attachment shaft 56, a cover 57, A rotary shaft 58, a saddle top surface earthing device side third sprocket 81, a chain 82, and a drilling blade mounting shaft sprocket 83 are provided.

  The excavation blades 55 are attached to the excavation blade attachment shaft 56 with their tips bent toward the heel inclined surface. The lower end of the excavation blade 55 needs to be located on the upper surface portion of the saddle. For this reason, the lower end of the excavation blade 55 is installed at a position higher than both the lower end of the ridge forming portion 31 and the lower end of the embankment device 41. The excavation blade 55 is rotated to excavate the upper surface of the old dredge. The cover 57 is installed in the upper part of the dredging upper surface earth removing device 51 and prevents the old dredged soil excavated by the excavating blade 55 from being scattered upward.

  A rotary shaft side clutch 53 is attached to the tip of the rotary upper surface earthing device rotary shaft 52. The excavation blade side clutch 54 is attached to the excavation blade attachment shaft 56 side. A digging blade 55 is attached to the digging blade attachment shaft 56. The top surface earthing device rotating shaft 52 and the excavating blade mounting shaft 56 are rotatably connected via a rotating shaft 58. The rotation shaft 58 is provided in parallel with the traveling direction and inclined rearward. As a result, the center of gravity moves forward when the saddle face top surface earthing device is folded in a non-working state, and the work balance is improved.

  The third upper surface earthing device side sprocket 81 is attached to the upper surface earthing device rotating shaft 52. The excavation blade attachment shaft sprocket 83 is attached to the excavation blade attachment shaft 56. The chain 82 is stretched between the third upper surface earthing device side sprocket 81 and the excavation blade attachment shaft sprocket 83.

  61 is a gauge ring. The gauge wheel 61 is installed on the side of the farm field that is opposite to the ridge. The gauge wheel 61 forms a metal conical plate, and the outer peripheral portion is inserted into the field and adjusts the height of the cocoon forming portion. It has the function to hold.

  Next, the details of the drive system will be described with reference to FIG.

  71 is a universal joint. The universal joint 71 is connected to the input shaft 15, receives a driving force from the input shaft 15, and is connected to an intermediate input shaft 721 of a driving case 72 provided with the other end fixed to the side of the support frame 21 to be rotationally driven. . The drive case 72 incorporates a bevel gear, and the power is transmitted to the second drive case 73 provided with the drive force input from the universal joint 71 so as to be rotatable in the horizontal direction below the bevel gear. The second drive case 73 incorporates a bevel gear, and receives the driving force input from the drive case 72 to rotate. The driving force received by the second drive case 73 is transmitted to the horizontal top surface earth removal device rotating shaft 52 via the bevel gear. The driving force transmitted to the dredge upper surface earthing device rotation shaft 52 is transmitted to the dredge upper surface earth removal device side third sprocket 81 via the rotation shaft side clutch 53 and the excavation blade side clutch 54. The driving force transmitted to the upper surface earth-moving device side third sprocket 81 is transmitted to the excavation blade attachment shaft 56 via the chain 82 and the excavation blade attachment shaft sprocket 83.

  Reference numeral 74 denotes a first sprocket on the saddle top surface side earthing device side. The first top surface scraping device-side first sprocket 74 is attached to the top surface shaving device rotating shaft 52. 75 is an embankment side sprocket. The embankment part side sprocket 75 is attached to the embankment part rotating shaft 42. Reference numeral 76 denotes a first chain. The first chain 76 is stretched between the first top surface of the dredge top side earthing device side sprocket 74 and the embankment side sprocket 75.

  Reference numeral 77 denotes a second sprocket on the saddle surface top side earthing device. The dredging top surface earthing device side second sprocket 77 is mounted on the dredging surface top sanding device rotating shaft 52 side by side with the dredging surface top sanding device side first sprocket 74. Reference numeral 78 denotes a spear formation portion side sprocket. The heel forming portion side sprocket 78 is attached to the heel forming portion rotating shaft 32. Reference numeral 79 denotes a second chain. The second chain 79 is stretched between the second surface top side earthing device side sprocket 77 and the second surface forming part side sprocket 78.

  When forming a cocoon using the cocoon forming machine described above, first, the disk 33 of the cocoon forming part 31 is installed on the slope of the old cocoon. Then, the cylindrical portion 34 of the ridge forming portion 31 is installed on the upper surface of the old ridge on which the disk 33 is installed. In addition, the embankment 41 is installed at a location just before the forward direction of the slope of the old fence where the disk 33 is installed. The dredge upper surface earthing device 51 is installed on the upper surface of the old dredge where the embankment 41 and the disk 33 are installed. The left and right working portions 30 are moved relative to the tractor by extending and contracting the offset cylinder 23 and rotating the support frame 21.

  Next, the ridge former is pulled by the tractor. At this time, the driving force from the tractor PTO shaft is transmitted to the rotary top surface earthing device rotating shaft 52 through the input shaft 15, the universal joint 71, the driving case 72, and the second driving case 73. The driving force transmitted to the dredge upper surface earthing device rotating shaft 52 is transmitted to the embankment portion rotating shaft 42 via the dredge upper surface earthing device side first sprocket 74, the first chain 76, and the embankment portion side sprocket 75. The excavation rotor part 45 having the plural excavation blades 43 is rotated by driving the embankment rotating shaft 42. The embankment portion 41 excavates the slopes of the old fence and the agricultural field under the slopes by the excavation rotor portion 45. The ground soil is scattered by the excavating blade 43, guided to the cover body 45, moved to the dredge side, and embanked.

  Further, the driving force transmitted to the dredge upper surface earthing device rotating shaft 52 includes the rotation shaft side clutch 53 and the excavating blade side clutch 54, the dredge upper surface earthing device side third sprocket 81, the chain 82, and the excavating blade attaching shaft sprocket 83. Is transmitted to the excavation blade mounting shaft 56 via the. The plurality of excavating blades 55 are rotated by the rotation of the excavating blade mounting shaft 56. The dredge upper surface earthing device 51 excavates the soil on the upper surface of the old dredger to cut weeds and the like, and at the same time excavates the irregularities on the upper surface of the dredge.

  The driving force transmitted to the dredge upper surface earthing device rotating shaft 52 is transmitted to the dredge forming portion rotating shaft 32 via the dredge upper surface earthing device side second sprocket 77, the second chain 79, and the dredge forming portion side sprocket 78. It is done. The disk 33 and the cylindrical portion 34 are rotated by driving the ridge forming portion rotating shaft 32. Here, the peripheral speed of the hook forming portion 31 is set in advance so as to be faster than the traveling speed of the tractor and the hook forming machine. For this reason, the disc 33 is in contact with the side surface of the old saddle, and the cylindrical portion 34 is in contact with the upper surface of the old saddle while rotating, thereby compacting the earth contact surface.

  In order to put the heel top surface shaving device into a non-working state while the heel forming machine is trimming work, the digging blade mounting shaft 56, the digging blade 55 and the cover 57 are parallel to the traveling direction and inclined rearward so When rotating upward about a rotation shaft 58 orthogonal to the earth device rotation shaft 52, the excavation blade mounting shaft 56, the excavation blade 55, and the cover 57 are positioned above the embankment portion 41. At this time, the meshing between the rotary shaft side clutch 53 and the excavating blade side clutch 54 provided on the dredging upper surface earthing device rotary shaft 52 is released. On the other hand, the engagement between the rotary shaft side clutch 53 and the excavation blade side clutch 54 is maintained by rotating the excavation blade mounting shaft 56, the excavation blade 55 and the cover 57 and rotating them in the direction opposite to the folding direction. Is done. That is, when the rotary shaft side clutch 53 and the excavating blade side clutch 54 are engaged with each other by the rotational movement between the working position and the non-working position of the dredging upper surface cutting device 51, the driving force is transmitted, and the clutch is engaged. The transmission of the driving force is released by the release.

  Further, in the scissor forming machine of the present embodiment, the clutch is disconnected at the same time that the excavating blade 55 and the like are raised obliquely forward, and the excavating blade mounting shaft 56 and the excavating blade 55 are not driven. Since the excavating blade 55 is not covered with the cover 57 and is exposed upward, it is not driven, so that safety is improved.

  INDUSTRIAL APPLICABILITY The present invention is used in a kite forming machine that is mounted on the rear side of a traveling machine such as a tractor and performs a kite forming operation by being offset laterally.

DESCRIPTION OF SYMBOLS 11 Mounting part 12 Top bracket 13, 14 Lower pin 15 Input shaft 21 Support frame 211 Link frame 22 Horizontal rotating shaft 23 Offset cylinder 30 Working part 301 Working part rotating cylinder 302 Horizontal rotating shaft 31 Working part Wrinkle forming part 33 Disc 34 Cylindrical part 41 Embankment part 42 Rotor rotation shaft 43 Excavation blade 44 Cover body 45 Excavation rotor part 51 畦 Upper surface earth removal device 52 畦 Upper surface earth removal device rotation shaft 53 Rotation shaft side clutch 54 Excavation blade side clutch 55 Excavation blade 56 Excavation blade Mounting shaft 57 Cover 58 Connecting shaft 61 Gauge wheel 71 Universal joint 711 Refraction yoke 72 Drive case 721 Intermediate input shaft 73 Second drive case

Claims (2)

A mounting portion having an input shaft for inputting power from the tractor, a support frame that is pivotably connected at one end to the mounting portion and horizontally rotated, and a vertical direction provided on the support frame rotational movement end side A wrinkle forming machine that includes a working unit supported by a horizontal pivoting shaft so that the working unit can be moved horizontally,
A drive case having an intermediate input shaft projecting forward and perpendicular to the horizontal rotation axis of the working unit is fixed to the side of the support frame, and the input is located at the left and right center of the mounting unit. The shaft and the intermediate input shaft of the drive case are connected by a universal joint, and the horizontal rotation shaft on the mounting portion side of the support frame is offset in the left-right direction from the center of the input shaft in plan view. A wrinkle forming machine characterized in that it is disposed at a position deviated rearward from the position of the refraction yoke on the input shaft side.   The horizontal rotation shaft of the working part is provided between the ridge forming part and the embankment part of the working part and is provided at a position deviated to the side of the embankment part in plan view. Forming machine.

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