Tillage device
阅读：435发布：2022-03-26
专利汇可以提供Tillage device专利检索，专利查询，专利分析的服务。并且A power driven, rotary soil tillage device in which a driven shaft having spaced rotary tillage members with soil engaging blades is provided with soil erupting chisel point members that extend from a point above and behind the driven shaft, downwardly and forwardly and terminate forward of and below the cylinder of rotation of the blades, so that the blades may work to the depth for forming a seed bed and the chisel point members erupt soil upwardly from below seed bed depth into the rotary tillage members where it is broken into an acceptable tilth. Independent adjustment of the depth of operation of the blades and of the chisel points permits optimum operation under varying soil conditions.，下面是Tillage device专利的具体信息内容。
1. A power driven rotary soil tillage device comprising, in combination: a mobile frame; a rotatable transverse shaft on said frame; means for driving said shaft from a power source; a plurality of rotary tillage members on said shaft, the members having blades which include radially extending portions terminating in outer end portions that extend generally parallel to the shaft, said outer end portions of said blades describing a cylinder of rotation about the shaft when the latter is rotated, with the lower part of said cylinder affording a working sector in which the blades penetrate and break up soil into a fine tilth to a depth for forming a seed bed, said blades moving downwardly through the front of said working sector; and transversely spaced soil erupting members operatively associated with the rotary tillage members, each said soil erupting member having a shank which is effectively rigidly secured to the frame behind the shaft and merges into a tooth portion that extends diagonally downwardly and forwardly of the device and terminates in a pointed tip which is entirely below a plane tangent to the bottom of the working sector and below the depth for forming a seed bed, and a sufficient distance forward of the vertical median plane of said sector at all times, and the soil erupting member being so shaped that as the device moves forward the tooth portions erupt soil upwardly from below seed bed depth into the path of forward movement of the blades which initially engage the erupted soil in the forward half of the working sector and break said soil into an acceptable tilth, whereby said device may simultaneously prepare a seed bed and break up compacted soil below the level of the seed bed.
2. The device of claim 1 which includes means for adjusting the soil erupting members vertically with respect to the shaft.
3. The device of claim 3 in which the cylinder of rotation has a diameter d, and the adjusting means permits the soil erupting members to be located with their tips a selected distance below a horizontal plane tangent to the bottom of the cylinder of rotation of the blades, said selected distance being adjustable between about 0.25d and 0.5d.
4. The device of claim 1 in which the cylinder of rotation has a diameter d, and the soil erupting members have their tips forward of a vertical plane tangent to the front of the cylinder of rotation of the blades by a distance of approximately 0.5d.
5. The device of claim 1 in which the tooth portion of each soil erupting member has a generally horizontal undersurface, and said tooth portion is chisel shaped and has a top surface which diverges upwardly and rearwardly at an angle of about 30* to the horizontal, plus or minus 5*.
6. The device of claim 5 which includes means for adjusting the soil erupting members vertically with respect to the shaft, and said adjusting means permits said members to be located with their tips a selected distance below a horizontal plane tangent to the bottom of the cylinder of rotation of the blades, said selected distance being adjustable between about 0.25d and 0.5d.
7. The device of claim 6 in which the blades have a diameter d, and the soil erupting members have their tips forward of a vertical plane tangent to the front of the cylinder of rotation of the blades by a distance of approximately 0.5d.
8. The device of claim 1 in which the rotary tillage members are arranged in pairs with their outer end portions extending toward each other and having their adjacent ends a short distAnce apart, and in which a soil erupting member is associated with each pair of rotary tillage members and has its tooth portion positioned between the ends of the blades in the working sector of the cylinder of rotation with the pointed tip of the tooth portion ahead of the working sector, the adjacent ends of the blades being spaced only slightly from the sides of the tooth portion so as to strip trash from the soil erupting members.
9. A power driven rotary soil tillage device comprising, in combination: a mobile frame; a rotatable transverse shaft on said frame; means for driving said shaft from a power source; a plurality of rotary tillage members on said shaft the outer ends of which describe a cylinder of rotation about the shaft while the latter is rotated, with the lower part of said cylinder affording a working sector, and said members rotating downwardly through the front of said working sector so as to assist forward movement of the device; transversely spaced soil erupting members each having a shank which is rigidly secured to the frame and merges into a tooth portion that extends downwardly and forwardly from the shank and terminates in a pointed tip which is entirely below a plane tangential to the bottom of the working sector and forward of the vertical median plane of said sector at all times, the soil erupting members being spaced apart axially of said shaft; means for adjusting the position of the soil erupting members vertically with respect to said rotatable shaft; and separate means for adjusting the operative position of the mobile frame relative to the ground surface, whereby the position of the cylinder of rotation relative to the ground surface and the vertical position of the soil erupting members relative to the cylinder of rotation are adjustable according to the prevailing soil conditions and the desired seed bed consistency and whereby the forward thrust imparted by the tillage members can be matched with the pull required for drawing the soil erupting members through the soil.
10. The device of claim 9 in which the tillage members have blades which include radially projecting portions terminating in outer end portions that extend generally parallel to the shaft and the blades are rigidly secured to the shaft, and the tillage members break up soil in said working sector and soil erupted into the path of the blades by said soil erupting members.
11. The device of claim 9 in which the soil erupting members are adjustably mounted on a transverse tool bar to vary the positions of the members longitudinally of the tool bar.
12. The device of claim 9 in which the blades are arranged in pairs having oppositely directed end portions.
13. The device of claim 9 in which the tips are located forward of the forward edge of said working sector.
14. The device of claim 9 in which the tips of the soil erupting members are chisel shaped and each have an upper surface upwardly inclined at about 30* to the horizontal.
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