CN-121986609-A - Vertical straw stubble cutting device with flexible movable cutter and controllable cutter shaft rotation direction

Abstract

The invention relates to a vertical straw stubble cutting device with a movable cutter capable of stretching and controlling the rotating direction of a cutter shaft. The cutter shaft forward and reverse rotation switching device is matched with the clutch commutator through the bevel gear set to drive the movable cutter shaft to realize flexible forward and reverse rotation switching, and the cutting blind area is eliminated by using reverse shearing force to improve the cutting efficiency and actively remove the winding matters. The movable cutter expansion device integrates the folding cutter and the gear chute mechanism, so that the alternating expansion operation of the upper cutter and the lower cutter is realized, wherein the upper cutter stretches out and the lower cutter contracts during forward rotation, and the upper cutter contracts and the lower cutter stretches out during reverse rotation, thereby avoiding the interference of non-operation cutters. The fixed cutter shaft rotating and matching device adjusts the angle of the double-edge fixed cutter by utilizing the electric push rod and the chute mechanism, and realizes the accurate shearing and matching of the fixed cutter and the current movable cutter mode. The device is only used for leaving stubbles on the ground, and the straw breaking rate and the operation adaptability are obviously improved through cooperation of multiple mechanisms.

Inventors

• FENG XIN
• Xin shuo
• Qi Bendi
• HAO ZHIGANG
• WANG FUXIAN
• ZHANG AITONG
• WU YUHAN

Assignees

• 东北农业大学

Dates

Publication Date

20260508

Application Date

20260318

Claims (3)

1. 1. The utility model provides a flexible and arbor revolves controllable vertical straw stubble cutting device of direction, including three-point suspension frame (1), frame (10), the ware (34) that breaks earth, fixed knife axle rotation cooperation device, arbor just reverses auto-change over device, move sword telescoping device, frame (10) top and three-point suspension frame (1) rigid coupling, frame (10) top is provided with fixed knife axle rotation cooperation device, frame (10) inside from top to bottom sets gradually arbor just reverses auto-change over device, move sword telescoping device, the ware (34) that breaks earth and below blade disc (24) rigid coupling, characterized by first electric putter support (7), fixed knife rotation axis (8), fixed knife rotary rod (9), fixed knife axle (22), double-edged sawtooth fixed knife (23), first pivot (33), first electric putter device, first storage battery (2), first controller (3), fixed knife rotation axis (8) and first electric putter support (7) are fixed at frame (10) top, above-mentioned first electric putter device includes first electric putter support (7), first electric putter motor (4), first electric putter motor (5), first electric putter (5) and first electric putter (3) are continuous with first electric putter (4) electric wire (3) respectively through first electric putter (4) control wire and first electric putter (4), the first electric push rod motor (4) is fixedly arranged on the first electric push rod support (7), the first electric push rod piston rod (6) is coaxially and slidably arranged in the first electric push rod shell (5), the first electric push rod piston rod (6) is hinged with the fixed cutter rotating rod (9) through a first rotating shaft (33), the rear end of the fixed cutter rotating rod (9) is hinged with the fixed cutter rotating shaft (8), the front end of the fixed cutter rotating rod (9) is fixedly arranged on the fixed cutter shaft (22), the fixed cutter shaft (22) is slidably arranged in the fixed cutter rotating chute (35) and is matched with the chute, the double-edge saw-tooth fixed cutters (23) are divided into four groups, three layers of double-edge saw-tooth fixed cutters (23) are fixedly arranged below the fixed cutter shaft (22) in the direction of the vertical movable cutter shaft (21).
2. 2. The cutter shaft forward and reverse rotation switching device according to claim 1, wherein the driving motor (11), the first bevel gear (12), the second bevel gear (13), the third bevel gear (14), the electric lifting claw (17), the clutch commutator (18), the bevel gear fixing frame (19), the movable cutter shaft spline (20), the movable cutter shaft (21), the camera (39), the third battery (41), the bearing fixing seat (42), the second electric push rod device, the second controller (15), the second battery (40), the third battery (41), the bearing fixing seat (42) and the second electric push rod device are fixedly arranged on the inner top surface of the frame (10), the driving motor (11) is fixedly arranged on the inner side surface of the frame (10), the second electric push rod device comprises a second electric push rod motor (16), an electric lifting claw (17) and a second electric push rod shell (52), the second battery (40) is respectively connected with the second controller (15) and the second electric push rod motor (16) through wires, the second controller (15) is connected with the second electric push rod motor (16) through wires, the upper end of the electric lifting claw (17) is coaxially arranged on the second electric push rod shell (17) and can rotate on the second electric push rod shell (18), the electric lifting claw (17) is slidably arranged in a chute of the bevel gear fixing frame (19), the camera (39) is fixedly arranged on the inner top surface of the frame (10), the third storage battery (41) is respectively connected with the driving motor (11) and the camera (39) through electric wires, the driving motor (11) is coaxially fixedly arranged with the driving shaft (38) through the coupler (37), the other end of the driving shaft (38) is coaxially fixedly arranged with the first bevel gear (12), the movable cutter shaft (21) is rotatably arranged below the bearing fixing seat (42), the bevel gear fixing frame (19) is rotatably arranged with the movable cutter shaft (21), the movable cutter shaft spline (20) is fixedly arranged above the movable cutter shaft (21), the first bevel gear (12), the second bevel gear (13) and the third bevel gear (14) are respectively rotatably arranged on the bevel gear fixing frame (19), the first bevel gear (12) is respectively meshed with the second bevel gear (13) and the third bevel gear (14), the second bevel gear (13) and the third bevel gear (14) are respectively coaxially and rotatably arranged with the movable cutter shaft (21), and the clutch (18) is rotatably arranged above the movable cutter shaft (21) and is rotatably meshed with the movable cutter shaft (20).
3. 3. The movable cutter telescopic device according to claim 1, wherein the cutter head (24), the second rotating shaft (25), the third rotating shaft (36), the folding cutter device, the cutter telescopic device and the third electric push rod device, the fourth battery jar (48) and the third controller (49) are fixedly arranged inside the cutter head (24), the cutter head (24) and the movable cutter shaft (21) are coaxially fixedly arranged, the folding cutter device comprises a front folding cutter (26), a rear folding cutter (27), a folding cutter holder (31) and a fourth rotating shaft (50), the front folding cutter (26) is hinged with the rear folding cutter (27) through the fourth rotating shaft (50), the rear folding cutter (27) is fixedly connected with the folding cutter holder (31) through a pair of cutter bolts (43), a cutter nut (44), the folding cutter holder (31) is hinged with the cutter head (24) through the second rotating shaft (25), the cutting edge of the front folding cutter (26) and the rear folding cutter (27) are designed into a shape structure, in order to improve the cutting efficiency, the sawtooth area of the front folding cutter (26) is larger than that of the rear folding cutter (27), the three folding cutter device is hinged with the third electric push rod (24) through the third rotating shaft (25), the third electric push rod device comprises a third electric push rod (45) and a third electric push rod (46), the third electric push rod motor (45) is fixedly connected with the third electric push rod support (28), the third electric push rod piston rod (47) is coaxially and slidably arranged in the third electric push rod shell (46), the third electric push rod piston rod (47) is hinged with the front folding knife (26) through a third rotating shaft (36), the fourth storage battery (48) is connected with the third electric push rod motor (45) through a wire penetrating through the rear folding knife (27), the third electric push rod motor (45) is connected with the third controller (49) through a wire, the cutter telescopic device comprises a rack sliding groove (29), a cutter contraction motor (32), a cutter contraction gear (51) and a fifth rotating shaft (30), the fifth rotating shaft (30) is fixedly connected with the folding knife rest (31) and the cutter contraction motor (32), the cutter contraction motor (32) is connected with the fourth storage battery (48) through a wire, the cutter contraction motor (32) is fixedly arranged on the inner side of the cutter contraction gear (51) through a wire, the cutter contraction motor (32) drives the cutter contraction gear (29) to rotate forwards and contract the rack sliding groove (51), the cutter contraction gear (29) is meshed with the cutter contraction gear sliding groove (51) together, four groups of movable cutters are fixedly connected below the movable cutter shaft (21), each group of movable cutters is divided into an upper cutter disc and a lower cutter disc, the installation directions of the upper cutter disc and the lower cutter disc are opposite, the directions of cutting edges are opposite, and the installation relationship is the same.

Description

Vertical straw stubble cutting device with flexible movable cutter and controllable cutter shaft rotation direction Technical Field The invention belongs to the technical field of agricultural machinery, and mainly relates to a vertical straw stubble cutting device with a flexible moving cutter and a controllable cutter shaft rotation direction. Background The traditional vertical straw stubble cutting device has poor adaptability in actual operation, large soil movement, and the problems of incomplete stubble cutting and easy winding and blockage, so that stubble residue, soil hardening, easy machine fault generation caused by grass winding on a cutter shaft and difficulty in meeting the requirements of modern agriculture fine production. Disclosure of Invention The invention aims at solving the technical problems that the existing vertical stubble cutting device has insufficient capability of cutting tough stubble in a single forward rotation mode and is easy to push, miss and cut and wind a cutter shaft. Aiming at the defect of poor crushing effect caused by slippage or lodging of straws during operation, the invention allows flexible switching to a reverse mode when the cutting effect is not ideal by designing the forward and reverse rotation free switching mechanism. The mode realizes thorough crushing of stubborn stubbles by changing the cutting track of the cutter, and simultaneously actively eliminates the winding of the cutter shaft through reverse rotation, thereby obviously improving the rate of crushing stubbles. In order to solve the technical problems, the invention adopts the following technical scheme: Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The vertical straw stubble cutting device with the flexible movable cutter and the controllable cutter shaft rotation direction comprises a three-point hanging frame, a breaker, a fixed cutter shaft rotating and matching device, a cutter shaft forward and reverse rotating and matching device and a movable cutter telescoping device, wherein the top of the frame is fixedly connected with the three-point hanging frame, the fixed cutter shaft rotating and matching device is arranged at the top of the frame, the cutter shaft forward and reverse rotating and matching device and the movable cutter telescoping device are sequentially arranged in the frame from top to bottom, and the breaker is fixedly connected with a cutter head at the lowest part. The fixed cutter shaft rotating and matching device comprises a first electric push rod support, a fixed cutter rotating shaft, a fixed cutter shaft, a double-blade sawtooth fixed cutter, a first rotating shaft and a first electric push rod device, wherein a first storage battery, a first controller, the fixed cutter rotating shaft and the first electric push rod support are fixedly arranged at the top of a frame, the first electric push rod device comprises the first electric push rod support, a first electric push rod motor, a first electric push rod shell and a first electric push rod piston rod, the first storage battery is respectively connected with the first controller and the first electric push rod motor through wires, the first controller is connected with the first electric push rod motor through wires, the first electric push rod motor is fixedly arranged with the first electric push rod support, the first electric push rod piston rod is coaxially and slidably arranged in the first electric push rod shell, the first electric push rod piston rod is hinged with the fixed cutter rotating shaft through the first rotating shaft, the fixed cutter shaft is slidably arranged in a fixed cutter rotating chute and matched with the chute, the double-blade is fixedly divided into four groups, and each group of double-blade sawtooth saw teeth are arranged below the fixed cutter shaft in the vertical direction. The cutter shaft forward and backward rotation switching device comprises a driving motor, a first bevel gear, a second bevel gear, a third bevel gear, an electric lifting claw, a clutch commutator, a bevel gear fixing frame, a movable cutter shaft spline, a movable cutter shaft, a camera, a third storage battery, a bearing fixing seat and a second electric push rod device. The second controller, the second storage battery, the third storage battery, the bearing fixing seat and the second electric push rod device are fixedly arranged on the top surface inside the frame, and the driving motor is fixedly arranged on the side surface inside the frame. The second electric push rod device comprises a second electric push rod motor, an electric lifting claw and a second electric push rod shell, wherein the second storage battery is respectively connected with a second controller and the second electric push rod motor through wires, and the second controller is connected with the second electric push rod motor through wires. The upper end of the