Crawler-type high-speed seeding system

Abstract

The invention discloses a crawler-type high-speed seeding system which comprises a crawler mechanism, a seeding mechanism and dibblers, the crawler mechanism comprises a motor driving unit, a transmission crawler and a crawler supporting unit. According to the crawler-type high-speed seeding system, the dibblers are mounted according to required intervals by utilizing the dibbling mounting holes, so that the dibbling requirements of seeds with different intervals are met; the seeding mechanism can be used for seeding, then seeds are conveyed to the dibbler when the dibbler passes through the lower side, and the dibbler is pushed to seed downwards, so that the seeds can be accurately conveyed into a soil bag below a thin film, and the seeding accuracy and reliability are ensured.

Description

Technical Field

[0001] The invention relates to a sowing system, in particular to a crawler type high-speed sowing system. Background Art

[0002] At present, with the advancement of sowing technology, precision sowing and precision spot sowing technology have been applied and promoted, but the perforating devices on the membrane in the sowing process of crops are all roller-type or four-link mechanism perforating sowing. Since the contact time between the seed placement part and the ground is extremely short, it is difficult for the seeds to effectively fall into the seed hole, resulting in the inability to effectively increase the operating speed of the machine, and when the perforating unit rolls away, the seeds may be pushed away from the soil bag. In addition, due to the short time of seed operation, the seeds will jump and fall out of position when they fall, resulting in reduced seed position accuracy, especially in the perforating sowing operation on the membrane. The seeds cannot fall into the holes in time, resulting in low speed and low efficiency. In severe cases, the seeds will fall on or outside the membrane, resulting in missed sowing and affecting the sowing quality. Summary of the invention

[0003] The purpose of the invention is to provide a crawler-type high-speed sowing system, which can achieve accurate sowing of seeds into the soil bag under the film, and ensure the accuracy and reliability of sowing.

[0004] Technical solution: The crawler-type high-speed seeding system described in the present invention includes a crawler mechanism, a seeding mechanism and various spot seeders; the crawler mechanism includes a motor drive unit, a transmission crawler and a crawler support unit; various spot-seeding mounting holes are arranged at intervals on the transmission crawler, and the crawler support unit is used to support and drive the transmission crawler; the motor drive unit is used to drive the transmission crawler through the crawler support unit; each spot seeder is used to be installed at the spot-seeding mounting hole at a corresponding position according to the spot-seeding interval; the seeding mechanism is fixedly installed on the crawler support unit, and is used to transport seeds to the spot seeder when the spot seeder passes from the lower side and push the spot seeder downward for sowing.

[0005] Furthermore, the track support unit includes four support rollers, two roller shafts and two strip support plates; the motor drive unit includes a drive motor and a sprocket transmission assembly; the two roller shafts are rotatably installed between the corresponding ends of the two strip support plates; the four support rollers are fixed on the two roller shafts in pairs, and a gap is left between the two support rollers on the same roller shaft to avoid the passage of the on-demand device; the drive motor is fixedly installed on the strip support plate, and one of the roller shafts is rotationally driven by the sprocket transmission assembly; a drive ring groove is provided on the wheel surface of the support roller, and drive teeth are provided in the drive ring groove; the drive track is arranged around the four support rollers, and driven teeth meshing with the drive teeth are provided on the inner side surface of the drive track.

[0006] Furthermore, the seeding mechanism includes a bracket unit, a friction unit, a rotating drive disk, a seeding disc, an outer shell, a suction unit, a blowing unit and various seed suction strips; a disc-shaped cavity is arranged in the seeding disc, a supporting short shaft is fixedly installed at the center of the disc surface on the rear side of the seeding disc, and the end of the supporting short shaft is rotatably installed on the bracket unit; the rotating drive disk is fixed on the supporting short shaft, and is driven and rotated by various seeding devices when passing from the lower side; the friction unit is installed on the bracket unit for friction damping the rotating drive disk; various T-shaped slots are longitudinally arranged at intervals on the outer circumference of the seeding disc, and various seed suction strips are longitudinally inserted into various T-shaped slots respectively; various seed suction ventilation holes are arranged on the seed suction strips, and the outer openings of the seed suction ventilation holes are arranged as conical slopes; A connecting hole for communicating with the seed suction ventilation hole is arranged on the wall; the outer shell is coated on the outer circumference of the seeding disc and is fixedly mounted on the bracket unit; a seed storage bin is arranged at the lower left part of the outer shell, and a seed conveying pipe is arranged at the top of the seed storage bin; a seeding pipe is vertically arranged at the lower part of the outer shell for conveying seeds to the spot seeder below; the blowing unit is installed in a through-type at the center of the front disk surface of the seeding disc, for blowing air to the connecting holes located at the lower side in the disc-shaped cavity, so that the seeds adsorbed on the seed suction ventilation holes located at the lower side are blown into the seeding pipe; the suction unit is installed in a through-type at the center of the front disk surface of the seeding disc, for sucking the connecting holes at other positions in the disc-shaped cavity, so that the seeds are adsorbed on the seed suction ventilation holes at other positions.

[0007] Furthermore, the friction unit includes a support sleeve, a support disc, a friction spring and a friction plate; one end of the support sleeve is fixed on the bracket unit, and the support disc is axially slidably installed on the cantilevered end of the support sleeve; the friction spring is sleeved on the support sleeve, and the friction spring is elastically supported between the bracket unit and the support disc; the friction plate is fixed on the support disc and is used to press on the rotating drive plate under the support of the friction spring; the supporting short shaft passes through the friction plate, the support disc and the support sleeve and is rotatably installed on the bracket unit; a rotation limit slide groove is arranged on the outer wall of the support sleeve along the length direction, and a rotation limit slider that is slidably embedded in the limit slide groove is arranged on the support disc.

[0008] Furthermore, the suction unit includes a suction hood, a suction pipe, a through pipe and a negative pressure connecting pipe; one end of the through pipe is fixed on the bracket unit, and the other end rotatably penetrates the center of the front disk surface of the seeding disk; both ends of the through pipe are closed, one end of the suction pipe is connected to the side edge of the inner closed end of the through pipe, one end of the negative pressure connecting pipe is connected to the side edge of the outer closed end of the through pipe, the other end of the suction pipe is connected to the suction hood, and the other end of the negative pressure connecting pipe is used to connect to the negative pressure source; the suction hood slidably covers the circumferential inner wall of the disc-shaped cavity, so that all the seed suction ventilation holes except the seed suction ventilation holes located at the blowing position are located in the suction hood.

[0009] Furthermore, the blowing unit includes a blowing pipe and a blowing hood; one end of the blowing pipe longitudinally passes through the two closed ends of the through-tube and the bracket unit, and is used to be connected to the positive pressure air source; the other end of the blowing pipe is bent downward and connected to the blowing hood, and the blowing hood sliding cover is located on the lowermost connecting hole in the disc-shaped cavity, and a friction sealing ring is provided at the lower cover opening of the blowing hood.

[0010] Furthermore, the sowing device includes a strip-shaped mounting base, a first rebound unit, a second rebound unit, a pressing support unit, a socket mechanism and a seed delivery mechanism; the pressing support unit is mounted on the bracket unit, and is used to successively press the tops of the socket mechanism and the seed delivery mechanism downward, and then successively release the downward pressing of the tops; the strip-shaped mounting base is detachably mounted at the sowing mounting hole, the socket mechanism is movably mounted on the strip-shaped mounting base, the first rebound unit is mounted on the strip-shaped mounting base, and is used to elastically support the socket mechanism upward; the seed delivery mechanism is mounted on the strip-shaped mounting base, and the lower end of the seed delivery mechanism vertically movably extends into the socket mechanism, and the second rebound unit is mounted on the strip-shaped mounting base, and is used to elastically support the seed delivery mechanism upward.

[0011] Furthermore, the pressing support unit includes a pressing support plate, two jack pressing bars and two seed delivery pressing bars; the pressing support plate is horizontally fixedly installed on the lower side of the bracket unit; the two jack pressing bars and the two seed delivery pressing bars are both laterally fixedly installed on the lower side of the pressing support plate, and the two seed delivery pressing bars are located between the two jack pressing bars; the lower end of the seed discharge tube passes through the pressing support plate and is located between the two seed delivery pressing bars; the left ends of the two jack pressing bars extend to the left beyond the left ends of the two seed delivery pressing bars, and the right ends of the two seed delivery pressing bars extend to the right beyond the right ends of the two jack pressing bars; the support height of the seed delivery pressing bar is greater than the support height of the jack pressing bar; the left and right ends of the two jack pressing bars and the left and right ends of the two seed delivery pressing bars are both provided with supporting slope surfaces.

[0012] Furthermore, the first rebound unit includes two first rebound branches; the first rebound branch includes a first telescopic tube, a first telescopic rod and a first rebound compression spring; the jack mechanism includes a jack square tube, a cover tension spring, two rebound support side plates and two rectangular cover plates; the jack square tube is vertically penetrated and movably installed on the strip mounting base plate, and the front and rear side walls of the lower end of the jack square tube extend downward in a triangular tip; the upper sides of the two rectangular cover plates are respectively swing-hinged and installed on the left and right sides of the lower end of the jack square tube; the cover tension spring is arranged between the two rectangular cover plates for pulling, The two rectangular covering plates are pulled and pressed on the left and right side edges of the triangular tip respectively; the two rebound support side plates are respectively vertically arranged on the front and rear side walls of the upper end of the jack square tube; an upper support is arranged on the upper part of the outer wall of the two rebound support side plates; the upper end of the first telescopic rod is fixed on the upper support, and the lower end is movably inserted in the upper end of the first telescopic tube, and the lower end of the first telescopic tube is fixed on the strip mounting base plate; the first rebound compression spring is elastically supported between the upper support and the strip mounting base plate, and the first telescopic rod and the first telescopic tube are both located in the first rebound compression spring.

[0013] Furthermore, the second rebound unit includes a U-shaped bracket and two second rebound branches, the second rebound branch includes a second telescopic rod and a second rebound compression spring; the seed delivery mechanism includes a strip collecting funnel and a seed delivery square tube; the left and right vertical brackets of the U-shaped bracket are vertically fixed and supported on the strip mounting base plate, and the top bracket of the U-shaped bracket horizontally passes through the two rebound support side plates; the upper end of the seed delivery square tube is docked and installed on the bottom of the strip collecting funnel, and the lower end movably passes through the top bracket of the U-shaped bracket and then extends into the socket square tube; the lower ends of the second telescopic rods of the two second rebound branches are respectively movably vertically inserted into the left and right vertical brackets of the U-shaped bracket, and the upper ends are respectively fixed on the left and right side edges of the strip collecting funnel; the second rebound compression spring is sleeved on the first telescopic rod, and the second rebound compression spring is elastically supported between the strip collecting funnel and the U-shaped bracket.

[0014] Compared with the prior art, the present invention has the following beneficial effects: each spot seeder is installed according to the required spacing by using the spot sowing installation hole, so as to meet the seed sowing requirements of different spacings; the seed sowing mechanism can be used to sow seeds, and then when the spot seeder passes from the lower side, the seeds are transported to the spot seeder, and the spot seeder is pushed downward for sowing, so that the seeds can be accurately delivered to the soil bag under the film, thereby ensuring the accuracy and reliability of sowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the system of the present invention;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the system of the present invention;

[0017] Figure 3It is a partial cross-sectional structural schematic diagram of the seeding mechanism and each seeding device of the present invention;

[0018] Figure 4 It is a schematic diagram of the installation structure of the seeding mechanism and each seeding device of the present invention;

[0019] Figure 5 It is a schematic diagram of the structure of the on-demand device of the present invention in three states;

[0020] Figure 6 It is a structural schematic diagram of the on-demand device of the present invention in a non-pressed state;

[0021] Figure 7 It is a schematic diagram of the structure of the on-demand device of the present invention in a pressed state;

[0022] Figure 8 It is a partial cross-sectional structural schematic diagram of the system of the present invention;

[0023] Fig. 9 It is a schematic diagram of the cross-sectional structure of the seed-discharging mechanism of the present invention. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0025] Embodiment 1:

[0026] like Figure 1-9 As shown, the crawler type high-speed seeding system disclosed in the present invention comprises: a crawler mechanism, a seeding mechanism and various spot seeders; the crawler mechanism comprises a motor drive unit, a transmission crawler 1 and a crawler support unit; various spot-seeding mounting holes 4 are arranged at intervals on the transmission crawler 1, and the crawler support unit is used to support and drive the transmission crawler 1; the motor drive unit is used to drive the transmission crawler 1 through the crawler support unit; each spot seeder is used to be installed at the spot-seeding mounting hole 4 at a corresponding position according to the spot-seeding interval; the seeding mechanism is fixedly installed on the crawler support unit, and is used to transport seeds to the spot seeder when the spot seeder passes from the lower side and push the spot seeder downward for sowing.

[0027] The sowing installation hole 4 is used to install each sowing device according to the required spacing, so as to meet the seed sowing requirements of different spacings; the seeding mechanism can be used to sow seeds, and then when the sowing device passes from the lower side, the seeds are transported to the sowing device, and the sowing device is pushed downward for sowing, so that the seeds can be accurately delivered to the soil bag under the film, ensuring the accuracy and reliability of sowing.

[0028] Furthermore, the track support unit includes four support rollers 3, two roller shafts 2 and two strip support plates 7; the motor drive unit includes a drive motor 62 and a sprocket transmission assembly 43; the two roller shafts 2 are rotatably installed between the corresponding ends of the two strip support plates 7; the four support rollers 3 are fixed on the two roller shafts 2 in pairs, and a gap is left between the two support rollers 3 on the same roller shaft 2 to avoid the passage of the on-demand device; the drive motor 62 is fixedly installed on the strip support plate 7, and one of the roller shafts 2 is rotationally driven by the sprocket transmission assembly 43; a drive ring groove 5 is provided on the wheel surface of the support roller 3, and a drive tooth 6 is provided in the drive ring groove 5; the drive track 1 is arranged around the four support rollers 3, and a driven tooth 8 meshing with the drive tooth 6 is provided on the inner side surface of the drive track 1. By utilizing the cooperation between the driving ring groove 5 and the driven teeth 8, the support roller 3 and the transmission track 1 can be limited to prevent the support roller 3 from detaching from the transmission track 1; by utilizing the cooperation between the driving teeth 6 and the driven teeth 8, the support roller 3 can drive the transmission track 1.

[0029] Furthermore, the seeding mechanism includes a bracket unit, a friction unit, a rotating drive disk 22, a seeding disc 18, an outer shell 19, a suction unit, a blowing unit and various seed suction cutting strips 21; a disc-shaped cavity 32 is provided in the seeding disc 18, a supporting short shaft 24 is fixedly installed at the center of the rear disc surface of the seeding disc 18, and the end of the supporting short shaft 24 is rotatably installed on the bracket unit; the rotating drive disk 22 is fixed on the supporting short shaft 24, and is rotated by each seeding device when passing from the lower side; The friction unit is installed on the bracket unit and is used for friction damping the rotating drive disk 22; T-shaped slots 20 are arranged longitudinally at intervals on the outer circumference of the seeding disc 18, and each seed suction plug 21 is longitudinally inserted into each T-shaped slot 20 and fixedly installed by a locking bolt 36; each seed suction vent 34 is arranged on the seed suction plug 21, and the outer opening of the seed suction vent 34 is set as a conical slope 64; a cavity wall of the disc-shaped cavity 32 is provided for contacting with the seed suction vent 34 The outer shell 19 is covered on the outer circumference of the seeding disc 18 and is fixedly mounted on the bracket unit; a seed storage bin 17 is provided at the lower left side of the outer shell 19, and a seed delivery pipe 29 is provided at the top of the seed storage bin 17; a brush is provided at the upper part of the seed storage bin 17 near the seeding disc 18 to sweep away excess seeds from the conical slope 64; a seeding pipe 42 is vertically provided at the lower part of the outer shell 19 to deliver seeds to the seeding device below. The blowing unit is installed through the center of the front disk surface of the seeding disk 18, and is used for blowing air to the connecting holes 33 located at the lower side in the disk-shaped cavity 32, so that the seeds adsorbed on the seed suction ventilation holes 34 located at the lower side are blown into the seeding tube 42; the suction unit is installed through the center of the front disk surface of the seeding disk 18, and is used for sucking the connecting holes 33 at other positions in the disk-shaped cavity 32, so that the seeds are adsorbed on the seed suction ventilation holes 34 at other positions. The friction unit can be used to perform friction damping on the rotating drive disk 22, so that the rotation of the rotating drive disk 22 stops in time when it is not moved, thereby reducing the inertia effect; the T-shaped slot 20 can be used to detachably install the seed suction plug 21, so that the seed suction plug 21 with different numbers of seed suction ventilation holes 34 can be replaced according to the sowing needs, thereby changing the sowing quantity of each hole position; the blowing unit can be used to blow the seeds adsorbed on the seed suction ventilation holes 34 on the lower side into the seed discharge tube 42, and give each seed an acceleration so that the seed can quickly fall into the seed hole; the suction unit can be used to firmly adsorb the seeds in the seed storage bin 17 to the conical slope 64 for transportation.

[0030] Furthermore, each driven lever 23 is arranged at intervals on the circumference of the rotating drive disk 22, and a driving lever 41 is vertically installed on the strip-shaped mounting base plate 58 of each sowing device, which is used to move the driven lever 23 when the sowing device passes by, so that the rotating drive disk 22 rotates a sowing angle. By using the driving lever 41 on each sowing device to rotate and move the rotating drive disk 22, passive trigger sowing is realized, and there is no need to change the sowing frequency of the sowing mechanism separately when changing the spacing between the sowing devices.

[0031] Furthermore, a peripheral limiting groove 61 is provided on the outer circumferential surface of the seeding disc 18, and an end limiting groove 40 is provided on the seed suction cutting strip 21, and the peripheral limiting groove 61 and the end limiting groove 40 together constitute a limiting ring groove, and the outer shell 19 is provided with various limiting convex strips that are slidably embedded in the limiting ring groove, and the various limiting convex strips are arranged at intervals, so as to facilitate the replacement of the seed suction cutting strip 21 for avoidance and smoothly extract the seed suction cutting strip 21. By using the matching arrangement of the limiting ring groove and the limiting convex ring, a stable rotating installation between the outer shell 19 and the seeding disc 18 can be achieved.

[0032] Furthermore, the bracket unit includes a bracket mounting base plate 9 and two bracket side plates 10; the bracket mounting base plate 9 is longitudinally fixedly mounted on the lower side edges of the two strip support plates 7; the two bracket side plates 10 are vertically fixedly mounted on the upper side surfaces of the bracket mounting base plate 9; an avoidance hole 11 for avoiding the rotating drive disk 22 and the outer shell 19 is provided in the middle of the bracket mounting base plate 9; the end of the support short shaft 24 is rotatably mounted on the bracket side plate 10, and the support sleeve 27 is fixed on the bracket side plate 10; the through tube 63 is fixed on the bracket side plate 10; the outer shell 19 is mounted on the bracket mounting base plate 9 through the diagonal support rod 16.

[0033] Furthermore, the friction unit includes a support sleeve 27, a support disc 26, a friction spring 28 and a friction plate 25; one end of the support sleeve 27 is fixed on the bracket unit, and the support disc 26 is axially slidably installed on the cantilevered end of the support sleeve 27; the friction spring 28 is sleeved on the support sleeve 27, and the friction spring 28 is elastically supported between the bracket unit and the support disc 26; the friction plate 25 is fixed on the support disc 26, and is used to press on the rotating drive disk 22 under the support of the friction spring 28; the support short shaft 24 passes through the friction plate 25, the support disc 26 and the support sleeve 27 and is rotatably installed on the bracket unit; a rotation limit slide groove is arranged on the outer wall of the support sleeve 27 along the length direction, and a rotation limit slider slidably embedded in the limit slide groove is arranged on the support disc 26. The friction spring 28 can be used to elastically press the support disc 26 and the friction plate 25, so that the rotating drive disk 22 always maintains a good friction damping effect.

[0034] Further, the suction unit includes a suction hood 39, a suction pipe 35, a through-tube 63 and a negative pressure connecting pipe 30; one end of the through-tube 63 is fixed on the bracket unit, and the other end is rotatably connected to the center of the front disk surface of the seeding disc 18; both ends of the through-tube 63 are closed, one end of the suction pipe 35 is connected to the side edge of the inner closed end of the through-tube 63, one end of the negative pressure connecting pipe 30 is connected to the side edge of the outer closed end of the through-tube 63, the other end of the suction pipe 35 is connected to the suction hood 39, and the other end of the negative pressure connecting pipe 30 is used to connect to the negative pressure source; the suction hood 39 is slidably covered on the circumferential inner wall of the disc-shaped cavity 32, so that the remaining seed suction ventilation holes 34 except the seed suction ventilation holes 34 located at the blowing position are all located in the suction hood 39. The suction effect of each seed suction ventilation hole 34 can be enhanced by using the suction hood 39.

[0035] Furthermore, the blowing unit includes a blowing pipe 31 and a blowing hood 37; one end of the blowing pipe 31 longitudinally passes through the two closed ends of the through-tube 63 and the bracket unit, and is used to connect to the positive pressure air source; the other end of the blowing pipe 31 is bent downward and connected to the blowing hood 37, and the blowing hood 37 is slidably covered on the communication hole 33 at the lower side in the disc-shaped cavity 32, and a friction sealing ring 38 is provided at the lower cover opening of the blowing hood 37. The friction sealing ring 38 can enhance the air tightness of the blowing hood 37 and ensure the blowing effect on the communication hole 33.

[0036] Furthermore, the on-demand seeding device includes a strip mounting base plate 58, a first rebound unit, a second rebound unit, a pressing support unit, a socket mechanism and a seed delivery mechanism; the pressing support unit is mounted on the bracket unit, and is used to successively press the tops of the socket mechanism and the seed delivery mechanism downward, and then successively release the top downward pressing; the strip mounting base plate 58 is detachably mounted at the on-demand seeding mounting hole 4, the socket mechanism is movably mounted on the strip mounting base plate 58, the first rebound unit is mounted on the strip mounting base plate 58, and is used to elastically support the socket mechanism upward; the seed delivery mechanism is mounted on the strip mounting base plate 58, and the lower end of the seed delivery mechanism vertically movably extends into the socket mechanism, and the second rebound unit is mounted on the strip mounting base plate 58, and is used to elastically support the seed delivery mechanism upward. The first rebound unit and the second rebound unit can be used to elastically support the plug-in mechanism and the seed-delivering mechanism respectively, so that they can rebound in time after being pressed by the pressing support unit; the pressing support unit can be used to press the top of the plug-in mechanism and the seed-delivering mechanism downward in succession when the plug-in mechanism and the seed-delivering mechanism pass from below, and then release the downward pressing of the top in succession, so that the plug-in mechanism is lifted first, and then the seed-delivering mechanism is lifted, so that the seeds can be better buried in the soil bag under the film without being pushed out of the soil bag or bouncing above the film.

[0037] Further, the pressing support unit includes a pressing support plate 12, two jack pressing strips 14 and two seed sending pressing strips 13; the pressing support plate 12 is horizontally fixedly installed on the lower side of the bracket unit; the two jack pressing strips 14 and the two seed sending pressing strips 13 are both horizontally fixedly installed on the lower side of the pressing support plate 12, and the two seed sending pressing strips 13 are located between the two jack pressing strips 14; the lower end of the seed discharge tube 42 passes through the pressing support plate 12 and is located between the two seed sending pressing strips 13; The left ends of the two jack pressing strips 14 extend to the left side beyond the left ends of the two seed delivery pressing strips 13, and the right ends of the two seed delivery pressing strips 13 extend to the right beyond the right ends of the two jack pressing strips 14; the support height of the seed delivery pressing strip 13 is greater than the support height of the jack pressing strip 14; the left and right ends of the two jack pressing strips 14 and the left and right ends of the two seed delivery pressing strips 13 are provided with support slope surfaces 15, so as to facilitate the jack mechanism and the seed delivery mechanism to insert the jack pressing strips 14 and the two seed delivery pressing strips 13 up and down. The structural design of the two jack pressing strips 14 and the two seed delivery pressing strips 13 can realize the jack mechanism and the seed delivery mechanism to press the top downward successively, and then release the top downward pressing successively.

[0038] Furthermore, the first rebound unit includes two first rebound branches; the first rebound branch includes a first telescopic tube 49, a first telescopic rod 48 and a first rebound compression spring 46; the jack mechanism includes a jack square tube 53, a cover tension spring 60, two rebound support side plates 45 and two rectangular cover plates 54; the jack square tube 53 is vertically through-type movably installed on the strip mounting base plate 58, and the front and rear side walls of the lower end of the jack square tube 53 are triangular tipped and extend downward; the upper sides of the two rectangular cover plates 54 are respectively swing-hinged and hinged on the left and right sides of the lower end of the jack square tube 53; the cover tension spring 60 is arranged between the two rectangular cover plates 54 for pulling The two rectangular cover plates 54 are respectively pressed on the left and right sides of the triangular tip; the two rebound support side plates 45 are respectively arranged vertically on the front and rear side walls of the upper end of the jack square tube 53; an upper support 57 is arranged on the upper part of the outer wall of the two rebound support side plates 45; the upper end of the first telescopic rod 48 is fixed on the upper support 57, and the lower end is movably inserted in the upper end of the first telescopic tube 49, and the lower end of the first telescopic tube 49 is fixed on the strip mounting bottom plate 58; the first rebound compression spring 46 is elastically supported between the upper support 57 and the strip mounting bottom plate 58, and the first telescopic rod 48 and the first telescopic tube 49 are both located in the first rebound compression spring 46. The cover tension spring 60 can be used to pull the two rectangular cover plates 54 against each other, so that the two rectangular cover plates 54 are respectively pressed on the left and right sides of the triangular tip to form a jack tip for piercing the film and inserting into the soil.

[0039] Furthermore, a top angle support wheel 47 is rotatably mounted at the top angles on the left and right sides of the two rebound support side plates 45, so as to achieve rolling support when passing through the two insertion hole pressing strips 14.

[0040] Furthermore, a first limiting sliding groove is vertically arranged on the first telescopic rod 48 , and a first limiting sliding block slidably embedded in the first limiting sliding groove is arranged on the inner wall of the first telescopic tube 49 , thereby limiting the telescopic range of the first telescopic rod 48 .

[0041] Furthermore, the second rebound unit includes a U-shaped bracket 55 and two second rebound branches, the second rebound branch includes a second telescopic rod 50 and a second rebound compression spring 51; the seed delivery mechanism includes a strip collecting funnel 52 and a seed delivery square tube 56; the left and right vertical brackets of the U-shaped bracket 55 are vertically fixedly supported on the strip mounting base plate 58, and the top bracket of the U-shaped bracket 55 horizontally passes through the two rebound support side plates 45; the upper end of the seed delivery square tube 56 is docked and installed on the bottom of the strip collecting funnel 52, and the lower end movably passes through the top bracket of the U-shaped bracket 55 and then extends into the socket square tube 53; the lower ends of the second telescopic rods 50 of the two second rebound branches are respectively movably vertically inserted into the left and right vertical brackets of the U-shaped bracket 55, and the upper ends are respectively fixed on the left and right sides of the strip collecting funnel 52; the second rebound compression spring 51 is sleeved on the first telescopic rod 48, and the second rebound compression spring 51 is elastically supported between the strip collecting funnel 52 and the U-shaped bracket 55. The strip collecting funnel 52 can be used to easily receive the seeds blown by the seed discharge tube 42; the seed delivery square tube 56 is inserted into the socket square tube 53, so that when the seed delivery pressing strip 13 is pressed down, the lower end of the seed delivery square tube 56 is used to prop open the two rectangular covering plates 54, so that the seeds can smoothly enter and fall into the seed hole, and then the first rebound unit supports the socket square tube 53 to rise, and the rectangular covering plates 54 rise synchronously away from the seeds. At this time, the soil bag is backfilled to surround the lower end of the seed delivery square tube 56, and then the second rebound unit supports the seed delivery square tube 56 to rise. The seeds are surrounded and covered by the soil bag and stay in the soil bag, and will not be carried out of the soil bag or film by the rectangular covering plates 54 or the seed delivery square tube 56.

[0042] Furthermore, a top corner support wheel 47 is rotatably installed at the upper top corners on the left and right sides of the strip-shaped collecting funnel 52, so as to achieve rolling support when passing through the two seed delivery pressing strips 13; a bottom corner support wheel 59 is rotatably installed at the lower bottom corners on the left and right sides of the seed delivery square tube 56, so as to provide rolling support when contacting with the rectangular covering plate 54.

[0043] Furthermore, a second limiting slot is vertically provided on the outer wall of the second telescopic rod 50 , and a second limiting slider slidably embedded in the second limiting slot is provided on the U-shaped bracket 55 , thereby limiting the telescopic range of the second telescopic rod 50 .

[0044] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and details may be made without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A crawler-type high-speed seeding system, characterized in that: The invention comprises a crawler mechanism, a seeding mechanism and various seeding devices; the crawler mechanism comprises a motor drive unit, a transmission crawler (1) and a crawler support unit; various seeding installation holes (4) are arranged at intervals on the transmission crawler (1); the crawler support unit is used to support and drive the transmission crawler (1); the motor drive unit is used to drive the transmission crawler (1) through the crawler support unit; various seeding devices are used to be installed at the seeding installation holes (4) at corresponding positions according to the seeding interval; the seeding mechanism is fixedly installed on the crawler support unit, and is used to transport seeds to the seeding device and push the seeding device downward to sow seeds when the seeding device passes from the lower side.

2. The crawler-type high-speed seeding system according to claim 1, characterized in that: The crawler support unit comprises four support rollers (3), two roller shafts (2) and two strip support plates (7); the motor drive unit comprises a drive motor (62) and a sprocket transmission assembly (43); the two roller shafts (2) are rotatably mounted between the corresponding ends of the two strip support plates (7); the four support rollers (3) are fixed on the two roller shafts (2) in pairs, and a space is left between the two support rollers (3) on the same roller shaft (2) to avoid the passage of the on-demand device. The invention relates to a drive motor (62) which is fixedly mounted on the strip support plate (7) and drives one of the roller shafts (2) to rotate through a sprocket drive assembly (43); a drive ring groove (5) is provided on the wheel surface of the support roller (3), and drive teeth (6) are provided in the drive ring groove (5); a drive belt (1) is arranged around the four support rollers (3), and driven teeth (8) which mesh with the drive teeth (6) are provided on the inner side surface of the drive belt (1).

3. The crawler-type high-speed seeding system according to claim 1, characterized in that: The seeding mechanism comprises a support unit, a friction unit, a rotating drive disk (22), a seeding disc (18), an outer shell (19), a suction unit, a blowing unit and various seed suction cutting strips (21); a disc-shaped cavity (32) is arranged in the seeding disc (18); a supporting short shaft (24) is fixedly installed at the center of the disc surface on the rear side of the seeding disc (18); the end of the supporting short shaft (24) is rotatably installed on the support unit; the rotating drive disk (22) is fixed on the supporting short shaft (24), and the seeds are sown by various on-demand methods. The device is driven to rotate when passing from the lower side; the friction unit is installed on the bracket unit and is used to perform friction damping on the rotating drive disk (22); T-shaped slots (20) are arranged longitudinally at intervals on the outer circumference of the seeding disc (18), and each seed suction plug (21) is longitudinally inserted into each T-shaped slot (20); each seed suction vent (34) is arranged on the seed suction plug (21), and the outer opening of the seed suction vent (34) is arranged as a conical slope surface (64); in the disc-shaped cavity (32), A connecting hole (33) for communicating with the seed suction ventilation hole (34) is provided on the cavity wall; the outer shell (19) is covered on the outer circumference of the seeding disc (18) and is fixedly installed on the bracket unit; a seed storage bin (17) is provided at the lower left part of the outer shell (19), and a seed delivery pipe (29) is provided at the top of the seed storage bin (17); a seeding pipe (42) is vertically provided at the lower part of the outer shell (19) for delivering seeds to the seeding device below; the blowing unit is installed in a through-type manner The center of the front disk surface of the seeding disk (18) is used to blow air to the communication holes (33) located at the bottom of the disk-shaped cavity (32), so that the seeds adsorbed on the seed suction and ventilation holes (34) located at the bottom are blown into the seeding tube (42); the suction unit is installed in the center of the front disk surface of the seeding disk (18) and is used to suck the communication holes (33) at other positions in the disk-shaped cavity (32), so that the seeds are adsorbed on the seed suction and ventilation holes (34) at other positions.

4. The crawler-type high-speed seeding system according to claim 3, characterized in that: The friction unit comprises a support sleeve (27), a support disc (26), a friction spring (28) and a friction plate (25); one end of the support sleeve (27) is fixed on the bracket unit, and the support disc (26) is axially slidably mounted on the cantilevered end of the support sleeve (27); the friction spring (28) is sleeved on the support sleeve (27), and the friction spring (28) is elastically supported between the bracket unit and the support disc (26); the friction plate (25) is fixed on the support disc (26) and is used to be pressed on the rotating drive disc (22) under the support of the friction spring (28); the support short shaft (24) passes through the friction plate (25), the support disc (26) and the support sleeve (27) and is then rotatably mounted on the bracket unit; a rotation limiting sliding groove is arranged on the outer wall of the support sleeve (27) along the length direction, and a rotation limiting sliding block is arranged on the support disc (26) and is slidably embedded in the limiting sliding groove.

5. The crawler-type high-speed seeding system according to claim 3, characterized in that: The suction unit comprises a suction hood (39), a suction pipe (35), a through-tube (63) and a negative pressure connecting pipe (30); one end of the through-tube (63) is fixed on the bracket unit, and the other end rotatably penetrates the center of the front disk surface of the seeding disk (18); both ends of the through-tube (63) are closed, one end of the suction pipe (35) is connected to the side edge of the inner closed end of the through-tube (63), one end of the negative pressure connecting pipe (30) is connected to the side edge of the outer closed end of the through-tube (63), the other end of the suction pipe (35) is connected to the suction hood (39), and the other end of the negative pressure connecting pipe (30) is used to connect to a negative pressure source; the suction hood (39) is slidably covered on the circumferential inner wall of the disk-shaped cavity (32), so that all the seed suction ventilation holes (34) except the seed suction ventilation holes (34) located at the blowing position are located inside the suction hood (39).

6. The crawler-type high-speed seeding system according to claim 5, characterized in that: The blowing unit comprises an air blowing pipe (31) and an air blowing hood (37); one end of the air blowing pipe (31) longitudinally passes through the two closed ends of the through-tube (63) and the bracket unit, and is used to be connected to a positive pressure air source; the other end of the air blowing pipe (31) is bent downward and connected to the air blowing hood (37); the air blowing hood (37) is slidably covered on the lowermost connecting hole (33) in the disc-shaped cavity (32), and a friction sealing ring (38) is provided at the lower cover opening of the air blowing hood (37).

7. The crawler-type high-speed seeding system according to claim 3, characterized in that: The sowing device comprises a strip-shaped mounting base plate (58), a first rebound unit, a second rebound unit, a pressing support unit, a socket mechanism and a seed delivery mechanism; the pressing support unit is mounted on the support unit and is used to successively press the tops of the socket mechanism and the seed delivery mechanism downward, and then successively release the pressing downwards; the strip-shaped mounting base plate (58) is detachably mounted at the sowing device mounting hole (4), the socket mechanism is movably mounted on the strip-shaped mounting base plate (58), the first rebound unit is mounted on the strip-shaped mounting base plate (58) and is used to elastically support the socket mechanism upward; the seed delivery mechanism is mounted on the strip-shaped mounting base plate (58), and the lower end of the seed delivery mechanism vertically and movably extends into the socket mechanism; the second rebound unit is mounted on the strip-shaped mounting base plate (58) and is used to elastically support the seed delivery mechanism upward.

8. The crawler-type high-speed seeding system according to claim 7, characterized in that: The pressing support unit comprises a pressing support plate (12), two jack pressing strips (14) and two seed delivery pressing strips (13); the pressing support plate (12) is horizontally fixedly mounted on the lower side of the bracket unit; the two jack pressing strips (14) and the two seed delivery pressing strips (13) are both horizontally fixedly mounted on the lower side of the pressing support plate (12), and the two seed delivery pressing strips (13) are located between the two jack pressing strips (14); the lower end of the seed discharge tube (42) passes through the pressing support plate (12), The seed-sending pressing strips (13) are located between the two seed-sending pressing strips (13); the left ends of the two jack pressing strips (14) extend to the left and exceed the left ends of the two seed-sending pressing strips (13); the right ends of the two seed-sending pressing strips (13) extend to the right and exceed the right ends of the two jack pressing strips (14); the support height of the seed-sending pressing strips (13) is greater than the support height of the jack pressing strips (14); and the left and right ends of the two jack pressing strips (14) and the left and right ends of the two seed-sending pressing strips (13) are both provided with support slope surfaces (15).

9. The crawler-type high-speed seeding system according to claim 7, characterized in that: The first rebound unit includes two first rebound branches; the first rebound branches include a first telescopic tube (49), a first telescopic rod (48) and a first rebound compression spring (46); the jack mechanism includes a jack square tube (53), a cover tension spring (60), two rebound support side plates (45) and two rectangular cover plates (54); the jack square tube (53) is vertically penetrated and movably installed on the strip-shaped installation bottom plate (58), and the front and rear side walls of the lower end of the jack square tube (53) are triangularly pointed and extend downward; the upper sides of the two rectangular cover plates (54) are respectively swing-hinged and installed on the left and right sides of the lower end of the jack square tube (53); the cover tension spring (60) is arranged between the two rectangular cover plates (54) for pulling the two rectangular cover plates The two resilient support side plates (45) are respectively vertically arranged on the front and rear side walls of the upper end of the jack square tube (53); an upper support (57) is arranged on the upper part of the outer wall of each of the two resilient support side plates (45); the upper end of the first telescopic rod (48) is fixed on the upper support (57), and the lower end is movably inserted in the upper end of the first telescopic tube (49), and the lower end of the first telescopic tube (49) is fixed on the strip-shaped mounting base plate (58); the first resilient compression spring (46) is elastically supported between the upper support (57) and the strip-shaped mounting base plate (58), and the first telescopic rod (48) and the first telescopic tube (49) are both located in the first resilient compression spring (46).

10. The crawler-type high-speed seeding system according to claim 9, characterized in that: The second rebound unit comprises a U-shaped bracket (55) and two second rebound branches, the second rebound branches comprise a second telescopic rod (50) and a second rebound compression spring (51); the seed delivery mechanism comprises a strip collecting funnel (52) and a seed delivery square tube (56); the left and right vertical brackets of the U-shaped bracket (55) are vertically fixedly supported on the strip mounting bottom plate (58), and the top bracket of the U-shaped bracket (55) horizontally passes through between the two rebound support side plates (45); the upper end of the seed delivery square tube (56) is butt-jointed and mounted on the strip collecting funnel (52); 2), the lower end of the second telescopic rod (50) movably penetrates the top bracket of the U-shaped bracket (55) and then extends into the jack square tube (53); the lower ends of the second telescopic rods (50) of the two second rebound branches are respectively movably vertically inserted into the left and right vertical brackets of the U-shaped bracket (55), and the upper ends are respectively fixed to the left and right sides of the strip collecting funnel (52); the second rebound compression spring (51) is sleeved on the first telescopic rod (48), and the second rebound compression spring (51) is elastically supported between the strip collecting funnel (52) and the U-shaped bracket (55).

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