CN214430068U - Foldable broad width rice direct seeder - Google Patents

Abstract

The utility model relates to a folding wide rice direct sowing machine matched with a chassis of a general wheeled tractor, which comprises a suspension bracket, a frame, a driving profiling device, a floating profiling device, a wheel track earthing device, a folding device, a synchronous hole distance adjusting system, a transmission case, a sowing device, a ditching device, a hydraulic system, a control system and the like; the utility model discloses a horizontal perpendicular folding mode of both sides seeder can realize the broad width operation, improves seeding efficiency, realizes the collapsible transportation at the field top through folding device simultaneously, has improved the practicality, has better advantage to the operation of plain area field piece rice seeding.

Description

Foldable broad width rice direct seeder

Technical Field

The utility model relates to an agricultural machine, concretely relates to agricultural seeding machine, more specifically is a rice direct seeder.

Background

The direct seeding of rice is a technology for directly sowing seeds in a field without raising and transplanting rice seedlings, and compared with the traditional rice seedling raising technology, the direct seeding technology has the advantages of saving physical strength, improving efficiency and the like. At present, related rice direct seeding machines exist in the prior art, but certain defects also exist.

For example, publication No. CN103098590B discloses a paddy field synchronous soil-covering, furrowing and ridging direct seeding machine powered by a wheeled tractor, which specifically refers to fig. 1 of the specification, and realizes adaptive seeding of the direct seeding machine by a profiling device, a ridging and soil-covering device and the like; publication No. CN209251015U discloses a profiling device for agricultural machinery, specifically referring to fig. 2 of the specification, which controls the left and right profiling driving structures to move relative to the suspension bracket, so that the left and right profiling brackets move synchronously relative to the suspension bracket to achieve the vertical direction of the frame or the lower ends of the left and right profiling brackets rotate relative to the frame to change the lateral inclination angle of the frame to achieve the horizontal profiling of the frame. Present live broadcast machine does not have the folding device that draws in, the switching of direct broadcast machine between the ridge of being not convenient for, the adjustment of cave interval do not carry out effectual coordination with between the power device simultaneously, reduced the effect of using the direct broadcast machine.

Therefore, there is a need for further development of a wide-width direct sowing machine with efficient adjustment of hill spacing and convenient inter-ridge conversion, thereby improving the efficiency and effect of use.

Disclosure of Invention

In view of the defect among the background, the utility model discloses study out foldable broad width rice direct seeder, including mounted frame, wheel rut earthing device, seeder, ditching device, mounted frame and tractor fixed connection, initiative copying device, unsteady copying device, folding device, synchronous cave apart from adjustment system, transmission case, hydraulic system and control system.

The active profiling device is arranged at the rear end of the suspension bracket, the lower part of the active profiling device is arranged at the upper end of the rack, the floating profiling device is arranged between the rack and the seeding device, and the folding devices are respectively arranged at the left side and the right side of the rack and are used for realizing the folding or unfolding of the seeding device; the synchronous hole distance adjusting system, the seeding device, the active profiling device and the folding device are driven by a hydraulic system; the wheel track earthing device is driven by a transmission case.

The synchronous hole distance adjusting system comprises a synchronous speed measuring impeller, an impeller mounting frame, an impeller rotating speed encoder, an electro-hydraulic proportional valve, a seed sowing device rotating speed encoder and a control system; the synchronous speed measuring impeller is fixedly installed at the front end of the frame through an impeller installing frame, the impeller rotating speed encoder is coaxially installed on the synchronous speed measuring impeller, the seed sowing device rotating speed encoder is coaxially installed on the seed sowing device, and the electro-hydraulic proportional valve is installed on a hydraulic system.

Compared with the prior art, the utility model, following advantage and effect have: the utility model discloses a horizontal perpendicular folding mode of both sides seeder can realize the broad width operation, improves seeding efficiency, can realize the collapsible transportation of field ground head through folding device simultaneously, has improved the practicality. Further, the utility model provides a synchronous cave of hydraulic drive apart from adjustment mode can effectively solve tractor power take off axle rotational speed and the asynchronous problem of tractor walking speed, realizes the synchronous adjustment of cave apart from.

The utility model discloses the profile modeling system adopts forced hydraulic pressure profile modeling and the unsteady profile modeling of machinery to combine together, can satisfy seeding operation under the different plough bottom conditions, improves ditching seeding quality.

Drawings

FIG. 1 is a schematic diagram of a prior art direct broadcast machine;

FIG. 2 is a schematic diagram of another prior art direct broadcast machine;

FIG. 3 is a schematic view of the overall structure of a foldable broad width rice direct sowing machine of the present invention;

fig. 4 is a schematic view of the frame structure of the present invention;

fig. 5 is a schematic structural view of the active copying device of the present invention;

FIG. 6 is a schematic structural view of the floating copying device of the present invention;

fig. 7 is a schematic structural view of the mechanical profiling induction device of the present invention;

fig. 8 is a structural schematic view of a folded state of the folding wide-width rice direct sowing machine of the present invention;

fig. 9 is a side view of a foldable wide rice direct sowing machine of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped. In particular embodiments, it will be understood that the terms "bottom," "upper," "lower," "left," "right," "rear," "top," "side," "horizontal," "vertical," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present invention, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a screw fixing manner commonly used in the prior art, and therefore, the detailed description is omitted in the present embodiment.

As shown in fig. 3-9, the utility model provides a folding wide width rice direct sowing machine, which comprises a suspension bracket 1, a frame 2, an active profiling device 3, a floating profiling device 12, a wheel track earthing device 4, a folding device 5, a synchronous hole distance adjusting system 6, a transmission case 7, a sowing device 8, a ditching device 9, a hydraulic system 10, a control system 11 and the like; the suspension bracket 1 is fixedly connected with a three-point suspension mechanism of a tractor, the active profiling device 3 is arranged at the rear end of the suspension bracket 1, the lower part of the active profiling device 3 is arranged at the upper end of the frame 2, the floating profiling device 12 is arranged between the frame 2 and the seeding device 8, the wheel track earthing device 4 is arranged at the lower end of the frame 2, the folding devices 5 are respectively arranged at the left side and the right side of the frame 2, the seeding device 8 is arranged at the rear side of the frame 2, and the ditching device 9 is arranged below the seeding device 8; the synchronous hole distance adjusting system 6, the seeding device 8, the active copying device 3 and the folding device 5 are driven by a hydraulic system 10; the rut covering device 4 is driven by a transmission case 7.

The control system 11 is used to control the normal operation of the sowing device, the folding device, the profiling device, the synchronized hole spacing adjustment device, etc., as well as the setting of the relevant operating parameters. The specific mode can be realized according to the actual requirement. When the active copying device 3 works, the active copying device is driven by a hydraulic system 10, and the forced left-right and horizontal copying of the whole machine can be realized under the control of a control system 11.

As shown in fig. 4, in the scheme, the machine frame 2 comprises a support base plate 17, a main cross beam 26 welded on the support base plate 17, a secondary beam i 32, a secondary beam ii 30, first active profiling lifting lugs 28 and 29, second active profiling lifting lugs 33 and 27, a second oil cylinder mounting lifting lug 18, a first oil cylinder mounting lifting lug 31, a transmission case mounting block 34, a left folding lifting lug 15, a right folding lifting lug 16, a left floating profiling support vertical beam 20, a left floating profiling support cross beam 21, a right floating profiling support vertical beam 22, a right floating profiling support cross beam 23, a mud guard 24 and a side plate 19.

I32, II 30, the folding lug in left side 15, the folding lug in right side 16 and the transmission case installation piece 34 fixed mounting of auxiliary girder are in supporting baseplate 17 upper surface, and initiative profile modeling lug (28, 29, 33, 27) are installed on I32, II 30 of auxiliary girder, second hydro-cylinder installation lug 18, first hydro-cylinder installation lug 31 are installed respectively on I32, II 30 sides of auxiliary girder, and curb plate 19 is installed in the side of supporting baseplate 17, and fender mud cover 24 installs in the front of supporting baseplate 17.

As shown in fig. 9, the active copying device 3 in the scheme comprises a copying frame 52, a mechanical copying sensing device, a manual hydraulic slide valve 13, a steel wire pull rope 116 and a copying executing device; the mechanical profiling induction devices are symmetrically arranged on two sides of the frame 2, the manual slide valves 13 are symmetrically arranged on the hydraulic valve block 104, two ends of the steel wire pull rope 116 are respectively connected with the mechanical profiling induction devices and the manual hydraulic slide valves 13, the lower ends of the profiling execution devices are arranged on the frame 2, and the front ends of the profiling execution devices are connected with the suspension bracket 1 through a slide way.

The mechanical profiling induction devices are a left mechanical profiling induction device 35A and a right mechanical profiling induction device 35B which are respectively and symmetrically arranged on the left side and the right side of the whole machine; the profiling executing device comprises a left profiling oil cylinder 14A and a right profiling oil cylinder 14B. When the profile modeling induction device works, the elevation and inclination angle change of the tractor can be flexibly induced by the profile modeling induction device. When the device works, the left and right mechanical copying sensing devices 35A and 35B sense the position change of the tractor caused by uneven plough base, the manual hydraulic slide valve 13 is controlled to be opened or closed through the steel wire pull rope 116, and then the hydraulic oil cylinders in the left copying execution device 14A and the right copying execution device 14B are controlled, so that the copying operation of the whole machine is realized.

The profiling frame 52 comprises a left profiling frame 3A and a right profiling frame 3B, the front end of the left profiling frame 3A is arranged in a slideway of the suspension bracket 1, and the lower end of the left profiling frame 3A is hinged on second active profiling lifting lugs 33 and 27 at the upper end of the rack 2; the front end of the right copying frame 3B is arranged in the slideway of the suspension frame 1, and the lower end is hinged on the first active copying lifting lugs 28 and 29 of the frame 2.

One end of the left profiling oil cylinder 14A is connected with a first upper oil cylinder lifting lug 36 of the suspension bracket 1, and the other end is hinged with a first oil cylinder mounting lifting lug 31 at the upper end of the rack 2; one end of the right profiling oil cylinder 14B is connected with a second upper oil cylinder lifting lug 37 of the suspension bracket 1, and the other end is hinged with a second oil cylinder mounting lifting lug 18 at the upper end of the frame 2.

As shown in fig. 7, in the present embodiment, each of the left and right mechanical profile sensing devices 35A, 35B includes a profile sensing plate 39, a profile lifting lug 38, a rotation shaft sleeve 50, a force transmission side plate 40, a force transmission right side plate 41, a force sensing adjusting rod 42, a profile adjusting nut 43, a force sensing adjusting spring 44, a rotation block 45, a first rope fixing lifting lug 47, a rope lifting lug pin 46, a rope mounting block 48, and a second rope fixing lifting lug 49; the second pull rope fixing lifting lug 49 is arranged on the upper side of a main cross beam 51A of the left seeding device, the pull rope mounting block 48 is arranged in the second pull rope fixing lifting lug 49, the profiling lifting lug 38 is arranged at the front end of a main cross beam 51B of the right seeding device, the rotating shaft sleeve 50 is welded at the upper end of the profiling induction plate 39, the rotating shaft sleeve 50 is hinged with the profiling lifting lug 38, the force transmission side plate 40 and the force transmission right side plate 41 are symmetrically arranged on the rotating shaft sleeve 50, the rotating block 45 and the pull rope lifting lug pin 46 are respectively hinged between the force transmission side plate 40 and the force transmission right side plate 41, and the pull rope lifting lug pin 46 is arranged above the rotating block 45; one end of the stress-sensing adjusting rod 42 is hinged in the pull rope lifting lug 49, the other end of the stress-sensing adjusting rod passes through the rotating block 45, and the stress-sensing adjusting spring 44 and the profiling adjusting nut 43 are respectively arranged at the other end of the stress-sensing adjusting rod 42; one end of the first rope fixing lug 47 is hinged with the rope lug pin 46.

As shown in fig. 6, the floating copying device 12 in the scheme comprises a left vertical beam 65, a left cross beam 66, a left lower pull rod 61, a left copying adjusting spring rod 67, a left copying adjusting spring 68, a left copying adjusting nut 69, a left upper pull rod 63, a mounting lug iii 64 and a mounting lug iv 62; the device comprises a right vertical beam 53, a right cross beam 54, a right lower pull rod 52, a right profile adjusting spring rod 55, a right profile adjusting spring 59, a right profile adjusting nut 60, a right upper pull rod 57, an installation lifting lug I56 and an installation lifting lug II 58. The left and right vertical beams 65,53 and the mounting lugs 56,64 are respectively fixed at the rear side of the main beam 51A of the left seeding device, the left and right cross beams 66, 54 are fixedly installed at the upper ends of the left and right vertical beams 65,53, the left and right lower pull rods 61,52 are hinged at one ends of the left and right vertical beams 65,53, the other ends are hinged at the left and right side supporting plates 70,71 of the seeding device, the mounting lugs 58,62 are installed at the main beam 51B of the right seeding device, the two ends of the left upper pull rod 63 are respectively hinged at the mounting lugs 62,64, the two ends of the right upper pull rod 57 are respectively hinged at the mounting lugs I56, II 58, the left and right profile-modeling regulating spring rods 67,55 are hinged at one ends at the left and right lower pull rods 61,52, the other ends pass through U-shaped holes on the left and right cross beams 66, 54, the left and profile- modeling regulating spring 68, 52, The right-side profile control spring 59 is fitted around the right-side and left-side profile control spring rods 67,55, respectively, and has one end in contact with the upper surfaces of the left-side cross member 66 and the right-side cross member 54 and the other end locked to the right-side and left-side profile control spring rods 67,55 by the right-side and left-side profile control nuts 68, 60. A left upper pull rod 63, a right upper pull rod 57 and a left lower pull rod 61, and a right lower pull rod 52 are arranged in a parallel four-bar mechanism.

The mounting lifting lugs I and II are rotatably connected with the right upper pull rod 57, the mounting lifting lugs III and IV are rotatably connected with the left upper pull rod 63, the right lower pull rod 52 is rotatably connected with the right support plate 71 and the right vertical beam 53, and the left lower pull rod 61 is rotatably connected with the left support plate 70 and the left vertical beam 65. Specifically, the left and right lower tie rods 61,52 are hinged at one end to the lower ends of the left and right vertical beams 65,53, respectively, and at the other end to the left and right support plates 70, 71.

As shown in fig. 3 to 9, the middle sowing device a, the left sowing device B and the right sowing device C are respectively mounted on the frame 2, the left sowing device main beam 51A and the right sowing device main beam 51B through floating copying devices in a hinge manner. During operation, middle seeding device A of organizing, left side seeding device B and right side seeding device C can carry out the floating profile modeling in certain stroke relatively frame 2, left side main beam 51A and right side main beam 51B, adjusts left and right side profile modeling adjusting spring early warning power according to mud face soft or hard degree, satisfies ditching seeding effect.

As shown in fig. 3 to 9, in the embodiment, the rut soil covering device 4 includes a right side plate 73 fixedly mounted on the frame 2, a right bearing seat 74, a right bearing 75, a right auger 76, a right helical blade 77, an intermediate support plate 85, an intermediate bearing seat 78, a left auger 79, a left helical blade 80, and a left bearing seat 83. The right side plate 73 and the middle supporting plate 85 are fixedly connected right below the frame 2; the right bearing block 74, the middle bearing block 78, the left bearing block 83 are respectively installed below the right side plate 73, the middle support plate 85 and the side plate 19 by bolts; the left and right side screw conveyors 79,76 are respectively arranged in the left, middle and right bearing seats 83, the middle bearing seat 78 and the right bearing seat 74; the left helical blade 80 and the right helical blade 77 are respectively welded on the inner cylinders of the left auger 79 and the right auger 76.

During operation, wheel rut earthing device 4 is driven by transmission case 7, transports the earth on surface to the wheel rut of tractor wheel extrusion in, can effectively fill the wheel rut, provides good seedbed for the ditching seeding.

As shown in fig. 3 to 9, the folding device includes a left folding device 5A and a right folding device 5B, which are respectively installed at the left and right sides of the frame 2.

Preferably, the left folding device 5A comprises a left folding lifting lug 15, an upper left folding leg 93, a lower left folding leg 97, a left rack vertical beam i 94, a left rack vertical beam ii 96, a left folding oil cylinder lifting lug 98 and a left folding oil cylinder 99. The two ends of the upper left folding leg 93 and the two ends of the lower left folding leg 97 are respectively hinged on a left folding lifting lug 15 and a left frame vertical beam I94, the left frame vertical beam II 96 is hinged on a left folding oil cylinder 98 rodless cavity end on the left folding lifting lug 15, and a rod cavity end is hinged with the left folding oil cylinder lifting lug 98. The four hinge mounting holes of the upper left folding leg 93 and the lower left folding leg 97 form a parallelogram structure.

The right folding device 5B comprises a right folding lifting lug 16, an upper right folding frame 92, a lower right folding frame 88, a right rack vertical beam I91, a right rack vertical beam II 90, a right folding oil cylinder lifting lug 89 and a right folding oil cylinder 87. Two ends of the upper right folding frame 92 and the lower right folding frame 88 are respectively hinged on the right folding lifting lug 16 and the right vertical frame beam I91, the right vertical frame beam II 90 is provided with a rod cavity-free end of a right folding oil cylinder 89 hinged on the right folding lifting lug 16, and one end of the rod cavity is hinged with the right folding oil cylinder lifting lug 89. The four hinge mounting holes of the upper right folding leg 92 and the lower right folding leg 88 form a parallelogram structure.

During operation, the left folding oil cylinder 98 and the right folding oil cylinder 89 are controlled to fold or unfold the seeding devices on the left side and the right side as required, so that wide operation or folding transfer is met.

As shown in fig. 3 to 9, in the scheme, the synchronous hole distance adjusting system 6 includes a synchronous speed measuring impeller 109, an impeller mounting rack 105, an impeller speed encoder 102, an electro-hydraulic proportional valve 106, a seed sowing device speed encoder 110, and a control system 11. The synchronous speed measuring impeller 109 is fixedly installed at the front end of the frame 2 through an impeller installation frame 105, the impeller rotating speed encoder 102 is coaxially installed on the synchronous speed measuring impeller 109, the seed sowing device rotating speed encoder 110 is coaxially installed on the seed sowing device 108, and the electro-hydraulic proportional valve 106 is installed on the hydraulic system 10.

When the device works, the impeller rotating speed encoder 102 synchronously measures the rotating speed of the impeller 109 with the same speed, the rotating speed of the seed metering device rotating speed encoder 110 is monitored according to the hole distance setting parameters, the rotating speed of the seed metering device driving hydraulic motor 107 is controlled in a closed loop mode, and seeding hole distance synchronous adjustment is achieved.

As shown in FIGS. 3-9, the seeding device 8 in the scheme comprises a middle group seeding device A, a left group seed-casting device B and a right group seed-casting device C.

As shown in fig. 3 to 9, in the scheme, the left multicast seed device B and the right multicast seed device C are respectively mounted on the left folding device 5A and the right folding device 5B by hinges. During operation, steerable left and right folding cylinders 98 and 89 drive upper right folding leg 92, lower right folding leg 88 respectively, and upper left folding leg 93 and lower left folding leg 97, realize that the seeding device of the left and right sides folds or expands with parallel rotation's mode, satisfy the function that the field was transported and the ground head is turned frequently and is switched over, can ensure simultaneously that the seeding device is parallel with the horizontal plane at parallel rotation in-process, be favorable to protecting the seed in seed case 111 not to leak outward.

Preferably, the three groups of seeding devices are all composed of a seed metering device 108, a seed box 111, a seed metering device mounting cross beam 72, a hydraulic motor 107, a left side supporting plate 70, a right side supporting plate 71, a bottom plate 114, a large ditch opener 112, a ditch opener 113, a seed ditch opener 103 and a mudguard 115. The seed box 111 is arranged right above the seed metering device 108, the seed metering device 108 is arranged on a seed metering device mounting cross beam 72, the seed metering device mounting cross beam 72 is fixed above a bottom plate 114 through a left side supporting plate 70 and a right side supporting plate 71, the large ditch openers 112, the ditch openers 113 and the seed ditch openers 103 are uniformly distributed on the bottom surface of the bottom plate, and the mud guard 115 is arranged on the side surface of the bottom plate 114.

During operation, the three groups of seed metering devices of the middle multicast seed device A, the left multicast seed device B and the right multicast seed device C can independently control whether to sow, have better adaptability to the sowing of different field widths and synchronously complete the ditching and ridging sowing operation.

The above-mentioned specific implementation is the preferred embodiment of the present invention, can not be right the utility model discloses the limit, any other does not deviate from the technical scheme of the utility model and the change or other equivalent replacement modes of doing all contain within the scope of protection of the utility model.

Claims (13)

1. A folding wide-width rice direct sowing machine comprises a suspension bracket (1), a frame (2), a wheel track soil covering device (4), a sowing device (8) and a ditching device (9), wherein the suspension bracket (1) is fixedly connected with a tractor; the wheel track earthing device (4) is driven by a transmission case (7) and is controlled by a control system (11), and is characterized by further comprising an active profiling device (3), a floating profiling device (12), a folding device (5), a synchronous hole spacing adjusting system (6), a transmission case (7) and a hydraulic system (10); the active profiling device (3) is arranged at the rear end of the suspension bracket (1), the lower part of the active profiling device (3) is arranged at the upper end of the rack (2), the floating profiling device (12) is arranged between the rack (2) and the seeding device (8), and the folding devices (5) are respectively arranged at the left side and the right side of the rack (2) and are used for realizing the folding or unfolding of the seeding device; the synchronous hill distance adjusting system (6), the seeding device (8), the active profiling device (3) and the folding device (5) are driven by a hydraulic system (10).

2. The folding wide width rice direct seeder as claimed in claim 1, wherein: the wheel track soil covering device (4) is installed at the lower end of the rack (2), the seeding device (8) is arranged on the rear side of the rack (2), and the ditching device (9) is arranged below the seeding device (8).

3. The folding wide paddy planter according to any one of claims 1-2, wherein the frame (2) comprises a support base plate (17) and a main beam (26), an auxiliary beam I (32), an auxiliary beam II (30), a first active profiling lifting lug (28, 29), a second active profiling lifting lug (33, 27), a transmission case mounting block (34), a left folding lifting lug (15), a right folding lifting lug (16), a left floating profiling supporting vertical beam (20), a left floating profiling supporting beam (21), a right floating profiling supporting vertical beam (22), a right floating profiling supporting beam (23), a mud guard (24) and a side plate (19) which are welded on the support base plate (17), wherein the auxiliary beam I (32), the auxiliary beam II (30), the left folding lifting lug (15), the right folding lifting lug (16) and the transmission case mounting block (34) are fixedly mounted on the upper surface of the support base plate (17), the auxiliary beam I (32) and the auxiliary beam II (30) are arranged basically perpendicular to the main cross beam at intervals, the first active profiling lifting lugs (28, 29) and the second active profiling lifting lugs (33, 27) are respectively arranged on the auxiliary beam I (32) and the auxiliary beam II (30), the side faces of the auxiliary beam I (32) and the auxiliary beam II (30) are respectively provided with the second oil cylinder mounting lifting lug (18) and the first oil cylinder mounting lifting lug (31), the side plate (19) is arranged on the side face of the supporting base plate (17), and the mud guard cover (24) is arranged on the front face of the supporting base plate (17).

4. The folding wide width rice direct seeder as claimed in any one of claims 1 to 2, wherein: the active profiling device (3) comprises a profiling frame, a mechanical profiling induction device, a manual hydraulic slide valve (13), a steel wire pull rope (116) and a profiling execution device; the mechanical profiling induction devices are symmetrically arranged on two sides of the rack (2), the manual hydraulic slide valves (13) are symmetrically arranged on the hydraulic valve block (104), two ends of the steel wire pull rope (116) are respectively connected with the mechanical profiling induction devices and the manual hydraulic slide valves (13), the lower ends of the profiling execution devices are arranged on the rack (2), a slide way is arranged on the suspension bracket (1), and the front ends of the profiling execution devices are connected with the suspension bracket (1) through the slide way.

5. The folding broad width rice direct seeder of claim 4, wherein: the profiling frame comprises a left profiling frame (3A) and a right profiling frame (3B), the front end of the left profiling frame (3A) is installed in a slideway of the suspension frame (1), and the lower end of the left profiling frame is hinged to a second active profiling lifting lug (27, 33) at the upper end of the rack (2); the front end of the right copying frame (3B) is arranged in a slideway of the suspension frame (1), and the lower end of the right copying frame is hinged on first active copying lifting lugs (28, 29) of the frame (2).

6. The folding broad width rice direct seeder of claim 4, wherein: the profiling executing device comprises a left profiling oil cylinder (14A) and a right profiling oil cylinder (14B); one end of the left profiling oil cylinder (14A) is connected with a first upper oil cylinder lifting lug (36) arranged on the suspension bracket (1), and the other end of the left profiling oil cylinder (14A) is hinged with a first oil cylinder mounting lifting lug (31) arranged at the upper end of the rack (2); one end of the right profiling oil cylinder (14B) is connected with a second upper oil cylinder lifting lug (37) arranged on the suspension bracket (1), and the other end of the right profiling oil cylinder (14B) is hinged with a second oil cylinder mounting lifting lug (18) arranged at the upper end of the rack (2).

7. The foldable wide width rice direct seeding machine according to claim 4, wherein: the mechanical copying sensing device is a left mechanical copying sensing device (35A) and a right mechanical copying sensing device (35B), which are respectively symmetrically arranged at the left side and the right side of the whole machine and respectively comprise a copying sensing plate (39), a copying lifting lug (38), a rotating shaft sleeve (50), a force transmission side plate (40), a force transmission right side plate (41), a force sensing adjusting rod (42), a copying adjusting nut (43), a force sensing adjusting spring (44), a rotating block (45), a first pull rope fixing lifting lug (47), a pull rope lifting lug pin (46), a pull rope mounting block (48) and a second pull rope fixing lifting lug (49); the second pull rope fixing lifting lug (49) is arranged on the upper side of a main beam (51A) of the left seeding device, the pull rope mounting block (48) is arranged in the second pull rope fixing lifting lug (49), the profiling lifting lug (38) is arranged at the front end of a main beam (51B) of the right seeding device, the rotating shaft sleeve (50) is welded at the upper end of the profiling induction plate (39), the rotating shaft sleeve (50) is hinged with the profiling lifting lug (38), the force transmission side plate (40) and the force transmission right side plate (41) are symmetrically arranged on the rotating shaft sleeve (50), the rotating block (45) and the pull rope lifting lug pin (46) are respectively hinged between the force transmission side plate (40) and the force transmission right side plate (41), and the pull rope lifting lug pin (46) is arranged above the rotating block (45); one end of the stress-sensing adjusting rod (42) is hinged in the second pull rope fixing lifting lug (49), the other end of the stress-sensing adjusting rod penetrates through the rotating block (45), and the stress-sensing adjusting spring (44) and the profile modeling adjusting nut (43) are respectively installed at the other end of the stress-sensing adjusting rod (42); one end of the first pull rope fixing lifting lug (47) is hinged with the pull rope lifting lug pin (46).

8. The folding wide width rice direct seeder as claimed in any one of claims 1 to 2, wherein: the floating profiling devices are symmetrically arranged and comprise a left vertical beam (65), a left cross beam (66), a left lower pull rod (61), a left profiling adjusting spring rod (67), a left profiling adjusting spring (68), a left profiling adjusting nut (69), a left upper pull rod (63), an installation lifting lug III (64), an installation lifting lug IV (62) and a left support plate (70); the device comprises a right vertical beam (53), a right cross beam (54), a right lower pull rod (52), a right profile modeling adjusting spring rod (55), a right profile modeling adjusting spring (59), a right profile modeling adjusting nut (60), a right upper pull rod (57), an installation lifting lug I (56), an installation lifting lug II (58) and a right support plate (71); installation lug I, II with pull rod (57) rotatable coupling on the right side, installation lug III, IV with pull rod (63) rotatable coupling on the left side, pull rod (52) and right side backup pad (71) down on the right side erect roof beam (53) rotatable coupling on the right side, pull rod (61) and left side backup pad (70) down on the left side erect roof beam (65) rotatable coupling on the left side.

9. The folding broad width rice direct seeder of claim 8, wherein: left side vertical beam (65), right side vertical beam (53) and corresponding installation lug III (64), installation lug I (56) is fixed respectively in left side seeder main beam (51A) rear side, left side crossbeam (66), right side crossbeam (54) fixed mounting respectively is in left side vertical beam (65), the upper end of right side vertical beam (53), left side lower link (61), right side lower link (52) one end is hinged respectively at left side vertical beam (65), the lower extreme of right side vertical beam (53), the other end is hinged on left side backup pad (70), right side backup pad (71), installation lug II (58), installation lug IV (62) are installed respectively at right side seeder main beam (51B), left side upper link (63) both ends respectively with installation lug III (64), installation lug IV (62) hinged connection, right side upper link (57) both ends respectively with installation lug I (56), Mounting lifting lug II (58) is hinged, left side profile modeling adjusting spring rod (67), right side profile modeling adjusting spring rod (55) one end respectively with left side lower link (61), right side lower link (52) hinged joint, the other end passes left side crossbeam (66), in the U-shaped hole on right side crossbeam (54), left side profile modeling adjusting spring (68), right side profile modeling adjusting spring (59) suit respectively in left side profile modeling adjusting spring rod (67), right side profile modeling adjusting spring rod (55), one end and left side crossbeam (66), surface contact on right side crossbeam (54), the other end passes through left side profile modeling adjusting nut (69), right side profile modeling adjusting nut (60) lock on left side profile modeling adjusting spring rod (67), right side profile modeling adjusting spring rod (55).

10. The folding wide width rice direct seeder as claimed in any one of claims 1 to 2, wherein: the track earthing device (4) comprises a right side plate (73), a right bearing seat (74), a right bearing (75), a right auger (76), a right helical blade (77), a middle support plate (85), a middle bearing seat (78), a left auger (79), a left helical blade (80) and a left bearing seat (83), wherein the right side plate is fixedly mounted on the rack (2); the right side plate (73) and the middle supporting plate (85) are fixedly connected right below the rack (2); the right bearing seat (74), the middle bearing seat (78) and the left bearing seat (83) are respectively installed below the right side plate (73), the middle supporting plate (85) and the side plate (19) through bolts; two ends of a left screw conveyor (79) and a right screw conveyor (76) are respectively arranged in a left bearing seat (83), a middle bearing seat (78) and a right bearing seat (74); and a left helical blade (80) and a right helical blade (77) are respectively welded on the inner cylinders of the left auger (79) and the right auger (76).

11. The folding wide width rice direct seeder as claimed in any one of claims 1 to 2, wherein: the folding device comprises a left folding device (5A) and a right folding device (5B); the left folding device (5A) comprises a left folding lifting lug (15), an upper left folding frame (93), a lower left folding frame (97), a left rack vertical beam I (94), a left rack vertical beam II (96), a left folding oil cylinder lifting lug (98) and a left folding oil cylinder (99); two ends of a left upper folding frame (93) and a left lower folding frame (97) are respectively hinged on the left folding lifting lug (15) and the left rack vertical beam I (94), a left rack vertical beam II (96), one end of a rodless cavity of a left folding oil cylinder is hinged on the left folding lifting lug (15), and one end with a rod cavity is hinged with the left folding oil cylinder lifting lug (98); the right folding device (5B) comprises a right folding lifting lug (16), a right upper folding frame (92), a right lower folding frame (88), a right rack vertical beam I (91), a right rack vertical beam II (90), a right folding oil cylinder lifting lug (89) and a right folding oil cylinder (87); the upper right folding frame (92) and the lower right folding frame (88) are hinged to the folding lifting lug on the right side (16) and the vertical beam I (91) on the right side rack respectively at two ends, the vertical beam II (90) on the right side rack is hinged to one end of a rodless cavity of a right folding oil cylinder on the folding lifting lug on the right side (16), and one end of the rod cavity is hinged to the lifting lug (89) of the right folding oil cylinder.

12. The folding wide width rice direct seeder as claimed in any one of claims 1 to 2, wherein: the synchronous hole distance adjusting system (6) comprises a synchronous speed measuring impeller (109), an impeller mounting frame (105), an impeller rotating speed encoder (102), an electro-hydraulic proportional valve (106), a seed sowing device rotating speed encoder (110) and a control system (11); synchronous speed measuring impeller (109) pass through impeller mounting bracket (105) fixed mounting be in frame (2) front end, impeller speed encoder (102) coaxial arrangement be in on synchronous speed measuring impeller (109), seed metering ware speed encoder (110) coaxial arrangement is on seed metering ware (108), install on hydraulic system (10) electric liquid proportional valve (106).

13. The folding broad width rice direct seeder of claim 8, wherein: the seeding device (8) comprises a middle group seeding device (A), a left group seeding device (B) and a right group seeding device (C), which are respectively arranged on the frame (2), a left seeding device main beam (51A) and a right seeding device main beam (51B) through a floating copying device (12) in a hinge mode, the middle group seeding device (A) is a bottom layer seeding device, the left group seeding device (B) and the right group seeding device (C) are liftable seeding devices, and the seeding devices are lifted through the floating copying device (12); each group of seeding devices respectively consists of a seed metering device (108), a seed box (111), a seed metering device mounting beam (72), a hydraulic motor (107), a left side supporting plate (70), a right side supporting plate (71), a bottom plate (114), a large ditch opener (112), a ditch opener (113), a seed ditch opener (103) and a mudguard (115); seed case (111) are installed directly over seed metering ware (108), seed metering ware (108) are installed on seed metering ware installation crossbeam (72), seed metering ware installation crossbeam (72) pass through left side backup pad (70) and right side backup pad (71) are fixed bottom plate (114) top, big ditch furrow opener (112) ditch furrow opener (113) kind ditch furrow opener (103) equipartition is in the bottom plate bottom surface, and fender (115) are installed in bottom plate (114) side.

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