Combined cultivator

Abstract

The invention discloses a combined cultivator, and relates to the technical field of seeding machinery. Comprising a suspension type rack, a rotary blade is arranged in front of the suspension type rack, and at least one group of ridging, film mulching and seeding devices are arranged behind the suspension type rack; the ridging, film mulching and seeding device comprises a ridger, a pair of ridge wall scraping and shaping discs, a mulching film mounting roller, a pair of front soil covering discs, a seeder and a pair of rear soil covering discs which are correspondingly arranged in sequence from front to back; the ridger comprises a pair of plate-type ridging structures and a ridge top flattening plate which are arranged in a bilateral symmetry mode, each plate-type ridging structure comprises a ditching plate, a furrow widening plate and a ridge wall flattening plate which are sequentially connected from front to back, and the suspension type rack is a foldable rack and comprises a front-end rack body, a rear-end rack body and a piston type executing mechanism; the front-end rack and the rear-end rack are hinged together, and a piston type executing mechanism is arranged between the front-end rack and the rear-end rack and used for folding, lifting and falling the rear-end rack. The device has the characteristics of convenient operation and high working efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of sowing machinery. Background Art

[0002] In recent years, with the development of agricultural modernization, advanced and applicable agricultural machinery has played an important role in agricultural production. Seeders are widely used in agricultural production, providing a solid guarantee for the sustainable development of agriculture and the realization of modernization. With the implementation of advanced agricultural technology, agricultural production has higher and higher requirements for agricultural machinery. In addition to the task of sowing, the seeder also works with agricultural machinery such as rotary tillers, while taking into account multiple functions such as opening hooks, laying films, laying water-saving pipes, fertilizing, and covering soil. The increase in functions has led to a longer structure of the seeder. The seeder needs to be towed by a tractor during operation. During transportation and field operations, a too long structure will result in a large turning radius, affecting the operating efficiency, which is not conducive to sowing operations, and will also increase safety hazards during transportation and operations. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a combined tillage machine which has the characteristics of easy operation and high working efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A combined tiller comprises a suspended frame, a rotary tiller is arranged in front of the suspended frame for rotary tilling and loosening the soil, and at least one set of ridge-forming, film-laying and sowing devices is arranged behind the rotary tiller;

[0006] The ridge-forming, film-laying and sowing device comprises a ridge-forming device, a pair of ridge wall scraping and shaping discs, a film-installing roller, a pair of front covering discs, a seeder and a pair of rear covering discs, which are arranged in sequence from front to rear;

[0007] The ridging device comprises a pair of plate-type ridging structures and ridge top smoothing plates which are symmetrically arranged on the left and right sides. The plate-type ridging structure is connected to a furrowing plate, a furrow widening plate and a ridge wall smoothing plate in sequence from front to back. The furrowing plate is inclined outwardly at an angle of less than 30° relative to the left and right symmetry line, so as to reduce the forward resistance in the cultivated land. The furrow widening plate is inclined outwardly at a larger angle relative to the furrowing plate. The ridge wall smoothing plate has an inclined surface adapted to the ridge wall. The pair of furrow widening plates gather the inner cultivated soil opened by the furrowing plates to the middle to the space between the pair of ridge wall smoothing plates to form a ridge. The furrow widening plate makes the gathered cultivated soil form a ridge wall. The ridge top smoothing plate is horizontally fixed to the upper ends of the pair of ridge wall smoothing plates to smooth the top of the ridge.

[0008] A pair of ridge wall scraping and shaping discs are arranged symmetrically on the left and right, and their installation positions correspond to the two side walls of the ridge formed by the ridger, and the ridge wall scraping and shaping discs of each location are fixed to the frame through their own ridge wall scraping and shaping disc brackets, and are rotatably connected to the ridge wall scraping and shaping disc brackets. The pair of ridge wall scraping and shaping discs are inclined outward from front to back, so as to scrape and shape the two side walls of the ridge formed by the ridger, so that the scraped loose soil falls into the furrows on both sides of the ridge;

[0009] The ground film installation roller is adapted to the ground film shaft core hole and is used to insert the shaft core hole of the whole roll of ground film to load the ground film. Its installation position can cover the ground film on the ridge;

[0010] The sowing opening of the seeder corresponds to the middle of the ridge formed by the ridger, so that the seeds are sown in the middle of the ridge;

[0011] A pair of front soil covering plates are located in front of the seeder, and a pair of rear soil covering plates are located behind the seeder. Each front soil covering plate is fixed to the frame through its own front soil covering plate bracket and is rotatably connected to the front soil covering plate bracket. Each rear soil covering plate is fixed to the frame through its own rear soil covering plate bracket and is rotatably connected to the rear soil covering plate bracket. The installation positions of the pair of front soil covering plates and the pair of rear soil covering plates correspond to the positions of the furrows on both sides of the ridge, respectively, and are inclined inwardly from front to back, so that the loose soil scraped into the furrow by the pair of ridge wall scraping and shaping plates is buried on the ground film during the traveling process.

[0012] The suspended frame is a foldable frame, which includes a front frame, a rear frame and a piston actuator; the front frame and the rear frame are hinged together, and a piston actuator is provided between the front frame and the rear frame for folding, lifting and lowering the rear frame. The rotary tiller, the ridger, the ridge wall scraping and shaping disc and the ground film installation roller are installed on the front frame, and the seeder, a pair of front covering discs and a pair of rear covering discs are installed on the rear frame.

[0013] The present invention is further improved in that:

[0014] A ground film compacting and cutting device is provided between the ground film installation roller and the seeder, and the ground film compacting and cutting device comprises a ground film pressing and cutting linkage mechanism, a ground film compacting roller and a ground film cutting claw;

[0015] The mulch pressing and cutting linkage mechanism is a left-right symmetrical structure, which includes a crossbeam, a left-side linkage structure and a right-side linkage structure;

[0016] The middle part of the crossbeam is fixedly connected to the front frame;

[0017] The left linkage structure is the same as the right linkage structure, and includes a longitudinal beam, a ground film compacting roller follower connecting rod, a ground film cutting claw driven connecting rod and a cutting claw control connecting rod;

[0018] The upper end of the follower connecting rod of the ground film compacting roller is rotatably connected to the front end of the longitudinal beam, and the upper end of the follower connecting rod of the ground film cutting claw is rotatably connected to the rear end of the longitudinal beam;

[0019] The cutting claw control connecting rod comprises a control rod and a cutting claw connecting rod, the upper end of the control rod is hinged with the upper end of the cutting claw connecting rod, and the control rod is rotatably connected with the ground film compaction roller follower connecting rod and the ground film cutting claw driven connecting rod through a rotating shaft;

[0020] The lower end of the follower connecting rod of the ground film compacting roller of the left linkage structure is rotatably connected to the left end of the ground film compacting roller; the lower end of the follower connecting rod of the ground film compacting roller of the right linkage structure is rotatably connected to the right end of the ground film compacting roller; the lower end of the driven connecting rod of the ground film cutting claw of the left linkage structure is rotatably connected to the left upper end of the ground film cutting claw; the lower end of the driven connecting rod of the ground film cutting claw of the right linkage structure is rotatably connected to the right upper end of the ground film cutting claw; the lower end of the cutting claw connecting rod of the left linkage structure is rotatably connected to the left lower end of the ground film cutting claw, and the lower end of the cutting claw connecting rod of the right linkage structure is rotatably connected to the right lower end of the ground film cutting claw;

[0021] When sowing, the hydraulic suspension system of the suspended frame controls the front frame to fall to the working position. Under the action of its own gravity, the mulch compacting roller falls to compact the mulch laid on the ridge; the angle between the longitudinal beam and the follower connecting rod of the mulch compacting roller becomes relatively smaller, so that the control rod drives the mulch cutting claw to move upward from the driven connecting rod, and the cutting claw connecting rod drives the mulch cutting claw to lift backward, so that the mulch cutting claw leaves the mulch upward;

[0022] When the sowing operation is completed, the hydraulic suspension system of the suspended frame controls the front frame to rise. Under the action of its own gravity, the mulch compacting roller falls freely, and the angle between the longitudinal beam and the follower connecting rod of the mulch compacting roller becomes relatively larger, so that the control rod drives the mulch cutting claw driven connecting rod to descend, and the cutting claw connecting rod drives the mulch cutting claw to fall forward, so that the mulch cutting claw moves downward to cut the mulch.

[0023] The mulch film compacting and cutting device is also provided with a pair of mulch film ridge and ditch compacting wheels, which are rotatably connected to the left end and the right end of the beam respectively through compacting wheel brackets. The installation positions of the pair of mulch film ridge and ditch compacting wheels 20 respectively correspond to the ridge positions on both sides of the ridge formed by the ridger, so as to compact the mulch film laid in the ditch under the deadweight of the mulch film ridge and ditch compacting wheels.

[0024] A drip irrigation tape shaft disc is arranged at the upper end of the front frame, which is used to insert the shaft core hole of a whole roll of drip irrigation tape to load the ground film and transport the drip irrigation tape along the ridge furrow.

[0025] The combined tiller is equipped with two sets of ridge-forming, film-laying and sowing devices.

[0026] The seeder is a duckbill type seeder.

[0027] The beneficial effects of adopting the above technical solution are:

[0028] The suspended frame adopts a foldable frame design. When the piston-type actuator controls the rear frame to fold and lift, the combined tiller is in a flexible and maneuverable state, which can shorten the overall structure of the combined tiller and reduce the turning radius, which is conducive to dragging and transporting the combined tiller before and after sowing operations and adjusting the sowing position before sowing operations. When the piston-type actuator controls the rear frame to fold and fall, the combined tiller is in a sowing operation state for sowing operations. It has the characteristics of easy operation and high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 yes Figure 1 axonometric drawing;

[0031] Figure 3 yes Figure 1 A schematic diagram of the structure when the rear end frame is folded and lifted;

[0032] Figure 4 yes Figure 1 Schematic diagram of the structure of the mid-hanging rack;

[0033] Figure 5 yes Figure 1 Schematic diagram of the structure of the middle rotary tiller and ridger;

[0034] Figure 6 yes Figure 5 The structural diagram of the middle ridging device;

[0035] Figure 7 It is a structural schematic diagram of a ground film compacting and cutting device during sowing operation of a combined tiller;

[0036] Figure 8 It is a structural schematic diagram of the mulch film cutting claw of the mulch film compacting and cutting device moving downward to cut off the mulch film after the combined tillage machine completes the sowing operation.

[0037] In the attached drawings: 1. Suspension frame; 1-1. Front frame; 1-2. Rear frame; 1-3. Piston actuator; 2. Rotary tiller; 3. Ridge wall scraping and shaping disc; 4. Ground film installation roller; 5. Seeder; 6. Front soil covering disc; 7. Ridge top smoothing plate; 8. Furrowing plate; 9. Furrow widening plate; 10. Ridge wall smoothing plate; 11. Rear soil covering disc; 12. Ground film compacting roller; 13. Ground film cutting claw; 14. Crossbeam; 15. Longitudinal beam; 16. Ground film compacting roller follower connecting rod; 17. Ground film cutting claw driven connecting rod; 18. Control lever; 19. Cutting claw connecting rod; 20. Ground film ridge and furrow compacting wheel; 21. Compacting wheel bracket; 22. Drip irrigation belt shaft disc. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the prior art, which will not be described in detail here.

[0040] Depend on Figures 1 to 8 As can be seen from the embodiment shown, this embodiment includes a hanging frame 1, a rotary tiller 2 is provided in front of the hanging frame 1 for rotary tilling and loosening the soil, and at least one set of ridge-forming, film-laying and sowing devices is provided behind the rotary tiller 2;

[0041] The ridge-forming, film-laying and sowing device comprises a ridge-forming device, a pair of ridge-wall scraping and shaping discs 3, a film-installing roller 4, a pair of front covering discs (6), a seeding device 5 and a pair of rear covering discs (11) which are arranged in sequence from front to back;

[0042] The ridging device comprises a pair of plate-type ridging structures and a ridge top smoothing plate 7 which are symmetrically arranged on the left and right sides. The plate-type ridging structure is connected to a furrowing plate 8, a furrow widening plate 9 and a ridge wall smoothing plate 10 in sequence from front to back. The furrowing plate 8 is inclined outwardly at an angle of less than 30° relative to the left and right symmetry line, so as to reduce the forward resistance in the cultivated land. The furrow widening plate 9 is inclined outwardly at a larger angle relative to the furrowing plate 8. The ridge wall smoothing plate 10 has an inclined surface adapted to the ridge wall. The pair of furrow widening plates 9 gather the inner cultivated soil opened by the furrowing plates 8 to the middle to the space between the pair of ridge wall smoothing plates 10 to form a ridge. The furrow widening plate 9 makes the gathered cultivated soil form a ridge wall. The ridge top smoothing plate 7 is horizontally fixed to the upper ends of the pair of ridge wall smoothing plates 10 to smooth the top of the ridge.

[0043] A pair of ridge wall scraping and shaping discs 3 are arranged symmetrically, and their installation positions correspond to the two side walls of the ridge formed by the ridger. Each ridge wall scraping and shaping disc 3 is fixed to the frame 1 through its own ridge wall scraping and shaping disc bracket, and is rotatably connected to the ridge wall scraping and shaping disc bracket. The pair of ridge wall scraping and shaping discs 3 are inclined outward from front to back to scrape and shape the two side walls of the ridge formed by the ridger, so that the scraped loose soil falls into the furrows on both sides of the ridge.

[0044] The ground film installation roller 4 is adapted to the ground film shaft core hole and is used to insert the shaft core hole of the whole roll of ground film to load the ground film. Its installation position can cover the ground film on the ridge;

[0045] The sowing opening of the seeder 5 corresponds to the middle of the ridge formed by the ridger, so that the seeds are sown in the middle of the ridge;

[0046] A pair of front soil covering plates 6 are located in front of the seeder 5, and a pair of rear soil covering plates 11 are located behind the seeder 5. Each front soil covering plate 6 is fixed to the frame 1 through its own front soil covering plate bracket and is rotatably connected to the front soil covering plate bracket. Each rear soil covering plate 11 is fixed to the frame 1 through its own rear soil covering plate bracket and is rotatably connected to the rear soil covering plate bracket. The installation positions of the pair of front soil covering plates 6 and the pair of rear soil covering plates 11 correspond to the positions of the furrows on both sides of the ridge, respectively, and are inclined inward from front to back, so that the loose soil scraped into the furrow by the pair of ridge wall scraping and shaping plates 3 is buried on the ground film during the travel process, thereby fixing the ground film on the ridge;

[0047] The suspended frame 1 is a foldable frame, which includes a front frame 1-1, a rear frame 1-2 and a piston actuator 1-3; the front frame 1-1 and the rear frame 1-2 are hinged together, and a piston actuator 1-3 is provided between the front frame 1-1 and the rear frame 1-2 to fold and lift the rear frame 1-2 and drop it. The rotary tiller 2, the ridger, the ridge wall scraping and shaping disc 3 and the mulch film installation roller 4 are installed on the front frame 1-1, the seeder 5, a pair of front covering discs 6 and a pair of rear covering plates 11 are installed on the rear end frame 1-2. When the piston actuator 1-3 controls the rear end frame 1-2 to fold and lift, the combined tillage machine is in a flexible and maneuverable state, which can shorten the overall structure of the combined tillage machine and reduce the turning radius, which is beneficial to the dragging and transportation of the combined tillage machine before and after the sowing operation and the adjustment of the sowing position before the sowing operation. When the piston actuator 1-3 controls the rear end frame 1-2 to fold and fall, the combined tillage machine is in a sowing operation state to carry out the sowing operation.

[0048] A ground film compacting and cutting device is provided between the ground film installation roller 4 and the seeder 5, and the ground film compacting and cutting device comprises a ground film pressing and cutting linkage mechanism, a ground film compacting roller 12 and a ground film cutting claw 13;

[0049] The ground film pressing and cutting linkage mechanism is a left-right symmetrical structure, which includes a crossbeam 14, a left-side linkage structure and a right-side linkage structure;

[0050] The middle part of the crossbeam 14 is fixedly connected to the front frame 1-1;

[0051] The left linkage structure is the same as the right linkage structure, which includes a longitudinal beam 15, a ground film compaction roller follower connecting rod 16, a ground film cutting claw driven connecting rod 17 and a cutting claw control connecting rod;

[0052] The upper end of the follower connecting rod 16 of the ground film compacting roller is rotatably connected to the front end of the longitudinal beam 15, and the upper end of the follower connecting rod 17 of the ground film cutting claw is rotatably connected to the rear end of the longitudinal beam 15;

[0053] The cutting claw control link comprises a control rod 18 and a cutting claw connecting rod 19. The upper end of the control rod 18 is hinged to the upper end of the cutting claw connecting rod 19. The control rod 18 is rotatably connected to the ground film compaction roller follower connecting rod 16 and the ground film cutting claw driven connecting rod 17 through a rotating shaft.

[0054] The lower end of the mulch compacting roller follower connecting rod 16 of the left linkage structure is rotatably connected to the left end of the mulch compacting roller 12; the lower end of the mulch compacting roller follower connecting rod 16 of the right linkage structure is rotatably connected to the right end of the mulch compacting roller 12; the lower end of the mulch cutting claw driven connecting rod 17 of the left linkage structure is rotatably connected to the left upper end of the mulch cutting claw 13; the lower end of the mulch cutting claw driven connecting rod 17 of the right linkage structure is rotatably connected to the right upper end of the mulch cutting claw 13; the lower end of the cutting claw connecting rod 19 of the left linkage structure is rotatably connected to the left lower end of the mulch cutting claw 13, and the lower end of the cutting claw connecting rod 19 of the right linkage structure is rotatably connected to the right lower end of the mulch cutting claw 13;

[0055] When sowing, the hydraulic suspension system of the suspension frame 1 controls the front frame 1-1 to fall to the working position. Under the action of its own gravity, the ground film compaction roller 12 falls to compact the ground film laid on the ridge; the angle between the longitudinal beam 15 and the ground film compaction roller follower connecting rod 16 becomes relatively smaller, so that the control rod 18 drives the ground film cutting claw driven connecting rod 17 to move upward, and the cutting claw connecting rod 19 drives the ground film cutting claw 13 to lift backward, so that the ground film cutting claw 13 leaves the ground film upward;

[0056] When the sowing operation is completed, the hydraulic suspension system of the suspended frame 1 controls the front frame 1-1 to rise. Under the action of its own gravity, the ground film compacting roller 12 falls freely, and the angle between the longitudinal beam 15 and the ground film compacting roller follower connecting rod 16 becomes relatively larger, so that the control rod 18 drives the ground film cutting claw driven connecting rod 17 to descend, and the cutting claw connecting rod 19 drives the ground film cutting claw 13 to fall forward, so that the ground film cutting claw 13 moves downward to cut the ground film.

[0057] The mulch film compacting and cutting device is also provided with a pair of mulch film ridge and ditch compacting wheels 20, which are rotatably connected to the left end and the right end of the beam 14 respectively through compacting wheel brackets 21, and the installation positions of the pair of mulch film ridge and ditch compacting wheels 20 respectively correspond to the ridge positions on both sides of the ridge formed by the ridger, so that the mulch film laid in the ditch can be compacted under the deadweight of the mulch film ridge and ditch compacting wheels 20.

[0058] A drip irrigation tape shaft disc 22 is provided at the upper end of the front frame 1-1, which is used to insert the shaft core hole of the entire roll of drip irrigation tape to load the ground film and transport the drip irrigation tape along the ridge furrow.

[0059] The combined tiller is equipped with two sets of ridge-forming, film-laying and sowing devices.

Claims

1. A combined tillage machine, characterized in that: It comprises a hanging frame (1), a rotary tiller (2) is arranged in front of the hanging frame (1) for rotary tilling and loosening the soil, and at least one set of ridge-forming, film-laying and sowing devices is arranged behind the rotary tiller (2); The ridge-forming, film-laying and sowing device comprises a ridge-forming device, a pair of ridge wall scraping and shaping discs (3), a film-installing roller (4), a pair of front covering discs (6), a seeding device (5) and a pair of rear covering discs (11) which are arranged in sequence from front to back; The ridge former comprises a pair of plate-type ridge former structures and a ridge top smoothing plate (7) which are symmetrically arranged on the left and right sides. The plate-type ridge former structure comprises a furrowing plate (8), a furrow widening plate (9) and a ridge wall smoothing plate (10) which are connected in sequence from front to back. The furrowing plate (8) is inclined outwardly at an angle of less than 30° relative to the left and right symmetry line, so as to reduce the forward resistance in the cultivated land. The furrow widening plate (9) is inclined outwardly at a larger angle relative to the furrowing plate (8). The ridge wall smoothing plate (10) has an inclined surface adapted to the ridge wall. The pair of furrow widening plates (9) gather the inner cultivated soil opened by the furrowing plates (8) to the middle to the space between the pair of ridge wall smoothing plates (10) to form a ridge. The furrow widening plate (9) makes the gathered cultivated soil form a ridge wall. The ridge top smoothing plate (7) is horizontally fixed to the upper ends of the pair of ridge wall smoothing plates (10) to smooth the top of the ridge. A pair of ridge wall scraping and shaping discs (3) are arranged symmetrically on both sides, and their installation positions correspond to the two side walls of the ridge formed by the ridger, respectively. Each of the ridge wall scraping and shaping discs (3) is fixed to the frame (1) through its own ridge wall scraping and shaping disc bracket, and is rotatably connected to the ridge wall scraping and shaping disc bracket. The pair of ridge wall scraping and shaping discs (3) are inclined outward from front to back to scrape and shape the two side walls of the ridge formed by the ridger, so that the scraped loose soil falls into the furrows on both sides of the ridge; The ground film installation roller (4) is adapted to the ground film shaft core hole and is used to insert the shaft core hole of the whole roll of ground film to load the ground film. Its installation position can cover the ground film on the ridge. The sowing opening of the seeder (5) corresponds to the middle of the ridge formed by the ridger, so that the seeds are sown in the middle of the ridge; A pair of front soil covering plates (6) are located in front of the seed drill (5), and a pair of rear soil covering plates (11) are located behind the seed drill (5). Each of the front soil covering plates (6) is fixed to the frame (1) through its own front soil covering plate bracket and is rotatably connected to the front soil covering plate bracket. Each of the rear soil covering plates (11) is fixed to the frame (1) through its own rear soil covering plate bracket and is rotatably connected to the rear soil covering plate bracket. The installation positions of the pair of front soil covering plates (6) and the pair of rear soil covering plates (11) correspond to the positions of the furrows on both sides of the ridge, respectively, and are inclined inward from front to back, so that the loose soil scraped into the furrow by the pair of ridge wall scraping and shaping plates (3) is buried on the ground film during the moving process. The suspended frame (1) is a foldable frame, which includes a front frame (1-1), a rear frame (1-2) and a piston actuator (1-3); the front frame (1-1) and the rear frame (1-2) are hinged together, and a piston actuator (1-3) is provided between the front frame (1-1) and the rear frame (1-2) for folding, lifting and lowering the rear frame (1-2); the rotary tiller (2), the ridger, the ridge wall scraping and shaping disc (3) and the ground film installation roller (4) are installed on the front frame (1-1); the seeder (5), a pair of front covering discs (6) and a pair of rear covering discs (11) are installed on the rear frame (1-2).

2. A combined tillage machine according to claim 1, characterized in that: A ground film compacting and cutting device is provided between the ground film installation roller (4) and the seeder (5), and the ground film compacting and cutting device comprises a ground film pressing and cutting linkage mechanism, a ground film compacting roller (12) and a ground film cutting claw (13); The ground film pressing and cutting linkage mechanism is a left-right symmetrical structure, comprising a crossbeam (14), a left-side linkage structure and a right-side linkage structure; The middle portion of the crossbeam (14) is fixedly connected to the front end frame (1-1); The left linkage structure is identical to the right linkage structure, and comprises a longitudinal beam (15), a ground film compacting roller follower connecting rod (16), a ground film cutting claw driven connecting rod (17) and a cutting claw control connecting rod; The upper end of the ground film compacting roller follower connecting rod (16) is rotatably connected to the front end of the longitudinal beam (15), and the upper end of the ground film cutting claw follower connecting rod (17) is rotatably connected to the rear end of the longitudinal beam (15); The cutting claw control link comprises a control rod (18) and a cutting claw connecting rod (19), the upper end of the control rod (18) is hinged to the upper end of the cutting claw connecting rod (19), and the control rod (18) is rotatably connected to the ground film compaction roller follower connecting rod (16) and the ground film cutting claw driven connecting rod (17) through a rotating shaft; The lower end of the ground film compaction roller follower connecting rod (16) of the left linkage structure is rotationally connected to the left end of the ground film compaction roller (12); the lower end of the ground film compaction roller follower connecting rod (16) of the right linkage structure is rotationally connected to the right end of the ground film compaction roller (12); the lower end of the ground film cutting claw driven connecting rod (17) of the left linkage structure is rotationally connected to the left upper end of the ground film cutting claw (13); the lower end of the ground film cutting claw driven connecting rod (17) of the right linkage structure is rotationally connected to the right upper end of the ground film cutting claw (13); the lower end of the cutting claw connecting rod (19) of the left linkage structure is rotationally connected to the left lower end of the ground film cutting claw (13), and the lower end of the cutting claw connecting rod (19) of the right linkage structure is rotationally connected to the right lower end of the ground film cutting claw (13); When sowing is carried out, the hydraulic suspension system of the suspension frame (1) controls the front frame (1-1) to fall to the working position, and under the action of its own gravity, the ground film compaction roller (12) falls to compact the ground film laid on the ridge; the angle between the longitudinal beam (15) and the ground film compaction roller follower connecting rod (16) becomes relatively smaller, so that the control rod (18) drives the ground film cutting claw driven connecting rod (17) to move upward, and the cutting claw connecting rod (19) drives the ground film cutting claw (13) to lift backward, so that the ground film cutting claw (13) leaves the ground film upward; When the sowing operation is completed, the hydraulic suspension system of the suspended frame (1) controls the front frame (1-1) to rise, and under the action of its own gravity, the ground film compacting roller (12) falls freely, and the angle between the longitudinal beam (15) and the ground film compacting roller follower connecting rod (16) becomes relatively larger, so that the control rod (18) drives the ground film cutting claw driven connecting rod (17) to descend, and the cutting claw connecting rod (19) drives the ground film cutting claw (13) to fall forward, so that the ground film cutting claw (13) moves downward to cut the ground film.

3. A combined tillage machine according to claim 2, characterized in that: The mulch film compacting and cutting device is also provided with a pair of mulch film ridge and furrow compacting wheels (20), which are rotatably connected to the left end of the cross beam (14) and the right end of the cross beam (14) respectively through a compacting wheel bracket (21), and the installation positions of the pair of mulch film ridge and furrow compacting wheels (20) respectively correspond to the positions of the furrows on both sides of the ridge formed by the ridger, so that the mulch film laid in the furrow can be compacted under the deadweight of the mulch film ridge and furrow compacting wheels (20).

4. A combined tillage machine according to claim 1, 2 or 3, characterized in that: A drip irrigation tape shaft disc (22) is provided at the upper end of the front frame (1-1) for inserting the shaft core hole of a whole roll of drip irrigation tape to load the ground film and transport the drip irrigation tape along the furrow.

5. A combined tillage machine according to claim 4, characterized in that: The combined tillage machine is provided with two groups of ridge-forming, film-laying and sowing devices.

6. A combined tillage machine according to claim 5, characterized in that: The seeder (5) is a duckbill type seeder.

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