ROTARY TILLAGE, SOWING, DITCHING AND PRESSING COMPOUND OPERATION MACHINE

Abstract

Provided is a rotary tillage, sowing, ditching and pressing compound operation machine, including a fertilization and sowing device (2), an intermediate rotary tillage and ditching device (4), a frame (1), a liftable ditcher (3), and a multi-stage press wheel device (5). The multi-stage press wheel device (5) includes a front press wheel (51) and a rear press wheel (52). The front press wheel (51) includes a front press roller shaft (511), front press rollers (512), and connecting rods (514). The rear press wheel (52) includes a connecting plate (521), a rear press roller shaft (523), and a rear press roller (524). A first end of the connecting plate (521) is connected to the rear press roller shaft (523) by a support, and the connecting plate (521) is connected to the frame (1) in a manner of a sliding pair. The rear press roller (524) is mounted on the rear press roller shaft (523) in a manner of a revolving pair, and the rear press roller (524) is located behind the liftable ditcher (3). A second end of the connecting plate (521) is connected to the liftable ditcher (3) to achieve switching of operation states of the liftable ditcher (3) and the rear press wheel (52). The rotary tillage, sowing, ditching and pressing compound operation machine can perform compound operation in a full-operation width, with more excellent operation quality.

Claims

1. A rotary tillage, sowing, ditching and pressing compound operation machine, comprising a fertilization and sowing device (2), an intermediate rotary tillage and ditching device (4), and a frame (1), wherein the intermediate rotary tillage and ditching device (4) is mounted at a lower part of the frame (1), and the fertilization and sowing device (2) connected to the frame (1) is arranged above the intermediate rotary tillage and ditching device (4); and further comprising a liftable ditcher (3) and a multi-stage press wheel device (5), wherein the liftable ditcher (3) is mounted behind ditching rotary tillage blades of the intermediate rotary tillage and ditching device (4) to perform a ditching operation in cooperation with the ditching rotary tillage blades; the intermediate rotary tillage and ditching device (4) comprises a rotary tillage blade shaft (41), an intermediate ditching cutter head (42), the ditching rotary tillage blades (43), and a plurality of sets of rotary tillage blades (44); the rotary tillage blade shaft (41) is horizontally mounted on the frame, the intermediate ditching cutter head (42) rotating synchronously with the rotary tillage blade shaft (41) is fixed at a middle position on the rotary tillage blade shaft (41), and the ditching rotary tillage blades (43) are respectively fixed on two sides of the intermediate ditching cutter head (42); the plurality of sets of rotary tillage blades (44) are arranged on the rotary tillage blade shaft (41); the multi-stage press wheel device (5) comprises a front press wheel (51) and a rear press wheel (52), and the front press wheel (51) comprises a front press roller shaft (511), front press rollers (512), and connecting rods (514); the front press rollers (512) are respectively mounted on two sides of the front press roller shaft (511) each in a manner of a revolving pair, two ends of the front press roller shaft (511) are respectively sheathed in first ends of the connecting rods (514), and second ends of the connecting rods (514) are hingedly connected to the frame; the front press rollers (512) are located behind the rotary tillage blades (44) of the intermediate rotary tillage and ditching device (4); the rear press wheel (52) comprises a connecting plate (521), a rear press roller shaft (523), and a rear press roller (524); a first end of the connecting plate (521) is connected to the rear press roller shaft (523) by a support, and the connecting plate (521) is connected to the frame (1) in a manner of a sliding pair; the rear press roller (524) is mounted on the rear press roller shaft (523) in a manner of a revolving pair, and the rear press roller (524) is located behind the liftable ditcher (3); and a second end of the connecting plate (521) is connected to the liftable ditcher (3) to achieve a switching of operation states of the liftable ditcher (3) and the rear press wheel (52).

2. The rotary tillage, sowing, ditching and pressing compound operation machine according to claim 1, characterized in that a sliding groove is arranged in a middle of the connecting plate (521), a sliding groove guide column (522) is arranged on the frame (1), the sliding groove guide column (522) is located in the sliding groove, and a movement of the connecting plate (521) and the frame (1) in the manner of the sliding pair is enabled by an operation of the liftable ditcher (3).

3. The rotary tillage, sowing, ditching and pressing compound operation machine according to claim 1, characterized in that the support comprises two vertical connecting rods (525) and a cross beam (526), two ends of the rear press roller shaft (523) are respectively connected to first ends of the two vertical connecting rods (525), second ends of the two vertical connecting rods (525) are connected by the cross beam (526), and the cross beam (526) is connected to the connecting plate (521).

4. The rotary tillage, sowing, ditching and pressing compound operation machine according to claim 1, characterized in that the liftable ditcher (3) comprises a ditching shovel (31), a connecting rod mechanism, and a driving mechanism, wherein the ditching shovel (31) is connected to the driving mechanism through the connecting rod mechanism, a hinge point of the connecting rod mechanism is connected to the second end of the connecting plate (521), and operation states of the ditching shovel (31) and the rear press wheel (52) are switched synchronously through the driving mechanism.

5. The rotary tillage, sowing, ditching and pressing compound operation machine according to claim 4, characterized in that when the driving mechanism drives, through the connecting rod mechanism, the ditching shovel (31) into a ditching operation state, the connecting rod mechanism drives, through the connecting plate (521), the rear press wheel (52) into a non-operating state; and when the driving mechanism drives, through the connecting rod mechanism, the ditching shovel (31) into a non-operating state, the connecting rod mechanism drives, through the connecting plate (521), the rear press wheel (52) into a pressing operation state.

6. The rotary tillage, sowing, ditching and pressing compound operation machine according to claim 1, characterized in that a vertical rod (513) is mounted between each of the connecting rods (514) and the frame (1), and a compression spring (515) is sleeved on the vertical rod (513).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG. 1 is a schematic structural diagram of a rotary tillage, sowing, ditching and pressing compound operation machine according to the present disclosure.

[0016] FIG. 2 is a schematic diagram of an intermediate rotary tillage and ditching device according to the present disclosure.

[0017] FIG. 3 is a schematic diagram of a liftable ditcher according to the present disclosure.

[0018] FIG. 4 is a schematic diagram of a multi-stage press wheel according to the present disclosure.

[0019] In the drawings: [0020] 1frame; 2fertilization and sowing device; 3liftable ditcher; 4intermediate rotary tillage and ditching device; 5multi-stage press wheel device; 12main beam of the frame; 13cross beam of the frame; 31ditching shovel; 32ditching shovel plow; 33support arm; 34hydraulic cylinder; 35lifting crank; 41rotary tillage blade shaft; 42intermediate ditching cutter head; 43ditching rotary tillage blade; 44rotary tillage blade; 51front press wheel; 511front press roller shaft; 512front press roller; 513vertical rod; 514connecting rod; 515compression spring; 52rear press wheel; 521connecting plate; 522sliding groove guide column; 523rear press roller shaft; 524rear press roller; 525vertical connecting rod; 526cross beam; 527rectangular tube.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Embodiments of the present disclosure will be described in detail hereinafter with reference to accompanying drawings in which the same or like reference characters refer to the same or like elements or elements having the same or like functions throughout. The embodiments described below with reference to accompanying drawings are exemplary, and intended to explain, instead of limiting the present disclosure.

[0022] In the description of the present disclosure, it should be understood that the orientation or positional relationships indicated by the terms center, longitudinal, transverse, length, width, thickness, upper, lower, axial, radial, vertical, horizontal, inner, outer, etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the apparatus or element described must have a specific orientation or be constructed and operated in a specific orientation, and therefore are not to be construed as limiting the present disclosure. Moreover, the terms first and second are used herein for purposes of description, and are not intended to indicate or imply relative importance or implicitly point out the number of the indicated technical feature. Therefore, the features defined by first and second may explicitly or implicitly include one or more features. In the description of the present disclosure, plural means two or more, unless it is defined otherwise specifically.

[0023] In the present disclosure, unless otherwise clearly specified and defined, the terms mount, connect, couple, fix and variants thereof should be interpreted in a broad sense, for example, may be a fixed connection, a detachable connection, or an integral connection; may be a mechanical connection or an electrical connection; or may be a direct connection, an indirectly connection via an intermediate medium, or communication between the interiors of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0024] As shown in FIG. 1, a rotary tillage, sowing, ditching and pressing compound operation machine of the present disclosure includes a fertilization and sowing device 2, an intermediate rotary tillage and ditching device 4, a frame 1, a liftable ditcher 3, and a multi-stage press wheel device 5. The intermediate rotary tillage and ditching device 4 is mounted horizontally at a lower part of the frame 1, and the fertilization and sowing device 2 connected to the frame 1 is arranged above the intermediate rotary tillage and ditching device 4. As shown in FIG. 2, the intermediate rotary tillage and ditching device 4 includes a rotary tillage blade shaft 41, an intermediate ditching cutter head 42, ditching rotary tillage blades 43, and rotary tillage blades 44. The rotary tillage blade shaft 41 is horizontally mounted on the frame. The intermediate ditching cutter head 42 rotating synchronously with the rotary tillage blade shaft 41 is fixed at a middle position on the rotary tillage blade shaft 41. The intermediate ditching cutter head 42 is of a planar circular structure and is perpendicular to the rotary tillage blade shaft 41. The ditching rotary tillage blades 43 are respectively fixed on two sides of the intermediate ditching cutter head 42. When the rotary tillage blade shaft 41 rotates, the intermediate ditching cutter head 42 drives the ditching rotary tillage blades 43 to rotate so as to loosen the soil. In addition to the ditching rotary tillage blades 43, a plurality of sets of rotary tillage blades 44 are arranged in sequence on the rotary tillage blade shaft 41. Each set of rotary tillage blades 44 includes a plurality of rotary tillage blades arranged in a circumferential direction for rotary tillage of land.

[0025] The liftable ditcher 3 is configured to lift a ditching shovel, so as to cooperate with the front ditching rotary tillage blades to perform ditching operation to shovel out a drainage ditch. FIG. 3 shows an embodiment of the liftable ditcher 3. The liftable ditcher 3 includes a ditching shovel 31, a ditching shovel plow 32, a support arm 33, a hydraulic cylinder 34, and a lifting crank 35. A first end of the support arm 33 is hingedly connected to a main beam 12 of the frame. A first end of the hydraulic cylinder 34 is mounted to a cross beam 13 of the frame, and a second end of the hydraulic cylinder 34 is hingedly connected to a middle of the support arm 33, to cause the support arm 33 to rotate in a vertical plane about the point at which the support arm 33 is hingedly connected to the frame 1. A second end of the support arm 33 is connected to the ditching shovel plow 32. The ditching shovel 31 is fixedly mounted to the ditching shovel plow 32. A first end of the lifting crank 35 is hingedly connected to the frame 1, and a second end of the lifting crank 35 is connected to the ditching shovel plow 32. The support arm 33, the ditching shovel plow 32, and the lifting crank 35 move simultaneously, to cause the ditching shovel 31 to form a reasonable movement trajectory. During ditching, the position of ditching shovel 31 is adjusted according to actual operation requirements. A horizontal position of a tip of the ditching shovel 31 is higher than the lowest point of a trajectory circle of a tip of each of the ditching rotary tillage blades 43. There is a gap between the tip of the ditching shovel 31 and the trajectory circle of the tip of each of the ditching rotary tillage blades 43 in a horizontal direction. A diameter of a trajectory circle of the tip of the ditching shovel 31 is not more than 2 cm larger than a diameter of the trajectory circle of the tip of each of the ditching rotary tillage blades 43.

[0026] As shown in FIG. 4, the multi-stage press wheel device 5 includes a front press wheel 51 and a rear press wheel 52. The front press wheel includes a front press roller shaft 511, front press rollers 512, vertical rods 513, connecting rods 514, and compression springs 515. The front press rollers 512 are respectively mounted on two sides of the front press roller shaft 511 each in a manner of a revolving pair. Two ends of the front press roller shaft 511 are respectively sheathed in first ends of the connecting rods 514. Second ends of the connecting rods 514 are hingedly connected to the frame. The front press rollers 512 are located behind the rotary tillage blades 44 of the intermediate rotary tillage and ditching device 4. A surface of each of the connecting rods 514 is fixedly connected to a respective one of the vertical rods 513. The compression springs 515 are respectively sleeved on the vertical rods 513. The rear press wheel 52 includes a connecting plate 521, a sliding groove guide column 522, a rear press roller shaft 523, a rear press roller 524, two vertical connecting rods 525, and a cross beam 526. The rear press roller 524 is mounted on the rear press roller shaft 523 in a manner of a revolving pair. The rear press roller 524 is located behind the liftable ditcher 3. The vertical connecting rods 525 are sleeved over an outer surface of the rear press roller shaft 523. The other ends of the vertical connecting rods 525 are rigidly connected to the cross beam 526. The cross beam 526 is connected to a first end of the connecting plate 521. A second end of the connecting plate 521 and the ditching shovel plow 32 are hingedly connected to the same position at the second end of the support arm 33. A sliding groove is arranged in a middle of the connecting plate 521. The sliding groove guide column 522 is connected to the frame 1 through rectangular tubes 527, and the sliding groove guide column 522 is configured to move back and forth in the sliding groove.

Operation Process:

[0027] When the ditching operation needs to be performed, the hydraulic cylinder 34 is extended to drive the support arm 33 to move downward in the vertical plane about the point at which the support arm 33 is hingedly connected to the frame main beam 12. Under the joint action of the support arm 33 and the lifting crank 35, the ditching shovel plow 32 reaches a predetermined position, so that the diameter of the trajectory circle of the tip of the ditching shovel 31 rigidly connected to the ditching shovel plow 32 is not more than 2 cm larger than the diameter of the trajectory circle of the tip of each of the ditching rotary tillage blades 43, and the horizontal position of the tip of the ditching shovel 31 is higher than the lowest point of the trajectory circle of the tip of each of the ditching rotary tillage blades 43. At the same time, the end of the connecting plate 521 in the rear press wheel 52 connected to the support arm 33 moves downward, and the end of the connecting plate 521 close to the rear press roller 524 is lifted. In this case, the rear press wheel 52 does not participate in the pressing operation, and only the ditching shovel 31 and the front press wheel 51 respectively perform the ditching operation and the pressing operation. When no ditching operation needs to be performed, the hydraulic cylinder 34 is shortened to drive and the support arm 33 to move upward around the main beam 12 of the frame to lift the ditching shovel plow 32 and the ditching shovel 31. In this case, the ditching shovel 31 no longer carries out the ditching operation, and correspondingly, under the joint action of the support arm 33, the connecting plate 521, and the sliding groove guide column 522, the rear press wheel 52 is lowered to a suitable position to perform the pressing operation, so that the rear press wheel 52 and the front press wheel 51 jointly complete the full-width pressing operation.

[0028] The embodiments are preferred embodiments of the present disclosure, but the present disclosure is not limited to the above-mentioned embodiments. Without departing from the spirit of the present disclosure, any obvious improvement, replacement or variation that can be made by the person skilled in the art belongs to the protection scope of the present disclosure.