CN112243639B

CN112243639B - Straw returning seeder

Info

Publication number: CN112243639B
Application number: CN202011070945.2A
Authority: CN
Inventors: 毕道才; 毕杰; 陈海斌
Original assignee: Anhui Lingyang Machinery Equipment Co ltd
Current assignee: Anhui Lingyang Machinery Equipment Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-09-07
Anticipated expiration: 2040-10-09
Also published as: CN112243639A

Abstract

The invention relates to the field of seeders, and discloses a straw returning seeder, which comprises a supporting plate, wherein idler wheels are movably connected inside the supporting plate close to two ends of the supporting plate, two groups of first supporting blocks are arranged at the upper end of the supporting plate, a soil scraping shovel is arranged between the two groups of first supporting blocks inside the supporting plate, a grinding and pressing column is movably connected inside the supporting plate close to one end edge of the supporting plate, a straw rubbing device is movably connected at the upper end of the first supporting block, the straw rubbing device comprises a straw box, a first rotating shaft and a second rotating shaft, a grinding column is arranged on the surface of the first rotating shaft, a blade is connected to the surface of the grinding column, a clamping box is arranged on the surface of the second rotating shaft, a clamping plate is movably connected inside the clamping box, and an isolation cover is clamped at the upper end of the straw rubbing device; the straw returning seeder can load straws, can control the falling quantity of the straws, and can clean the seeder.

Description

Straw returning seeder

Technical Field

The invention relates to the field of seeders, in particular to a straw returning seeder.

Background

The seeder is a planting machine taking crop seeds as seeding objects, is used for seeding a certain type or a certain type of crops, and is usually named by the crop type, such as a grain drill, a corn hill planter, a cotton seeder, a pasture broadcast seeder and the like.

The planting of long-time, many times, the soil can be dystrophic, influences crop output, and current seeder can't load the straw, can not rub the straw, and secondly, the share that can't control the straw and fall out, in addition, can't in time clean the seeder, for this reason, we propose a straw returning seeder.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a straw returning seeder, which has the function of loading straws, can wash the seeder in time, can control the amount of the straws flowing out, and solves the problems that the traditional seeder cannot fertilize the ground, cannot control the fertilizing amount and cannot clean the seeder in time when in use.

Technical scheme

In order to realize the functions of preventing the seeder from toppling over and loading straws, washing the seeder in time and controlling the amount of the straws flowing out, the invention provides the following technical scheme: a straw returning seeder comprises a supporting plate, wherein idler wheels are movably connected at the positions, close to two ends, inside of the supporting plate, two groups of first supporting blocks are arranged at the upper end of the supporting plate, a soil scraping shovel is arranged between the two groups of first supporting blocks inside the supporting plate, a grinding and pressing column is movably connected at the position, close to one end edge, inside of the supporting plate, a straw rubbing device is movably connected at the upper end of each first supporting block and comprises a straw box, a first rotating shaft and a second rotating shaft, a grinding column is arranged on the surface of the first rotating shaft, a blade is connected to the surface of the grinding column, a clamping box is arranged on the surface of the second rotating shaft, a clamping plate is movably connected inside of the clamping box, an isolating cover is clamped at the upper end of the straw rubbing device, a fixed block is arranged on one side of the straw rubbing device at the upper end of the supporting plate, and a water tank is arranged at the front end of the fixed block, the one end of fixed block is provided with the snap ring, the inside of snap ring is provided with the water pipe, the rear side of the one end water pipe of fixed block is provided with the seed pipe, the one end swing joint of seed pipe has the funnel, the upper end of fixed block is provided with straw pan feeding device, straw pan feeding device includes pan feeding case, telescopic link, third bolt, first fixed pipe, the inside swing joint of pan feeding case has the fly leaf, the lower extreme of pan feeding case is close to one end department and is connected with the joint board, the one end of fixed block is connected with rotating device, rotating device includes motor case, fourth bolt, the one end surface including the motor case runs through and is provided with the third pivot, the one end of third pivot is connected with the carousel, the one end of carousel is connected with the fixed pipe of second.

Preferably, the surface of joint case is provided with first bolt, the screens board is through first bolt fixed connection in the inside of joint case, screens board, joint case are provided with three groups, the one end of second pivot is passed through the fourth bolt and is fixed in the inside of the fixed pipe of second.

Preferably, one end of the first rotating shaft and one end of the second rotating shaft penetrate through the surface of one end of the straw box, the grinding column is fixedly connected to the outer surface of the first rotating shaft, the grinding column and the blade are fixedly connected, the grinding column is located above the clamping plate, the rotating device is located on one side of the straw rubbing device, and one end of the first rotating shaft is fixed inside the second fixing pipe through a fourth bolt.

Preferably, the lower extreme fixed connection of first fixed pipe is in the upper end of fixed block, the one end sliding connection of telescopic link is in the inside of first fixed pipe, the other end of telescopic link runs through the lower extreme surface of pan feeding case, the other end of telescopic link and the lower extreme fixed connection of fly leaf, be sliding connection between the inside of fly leaf and pan feeding case, telescopic link, first fixed pipe pass through third bolt fixed connection.

Preferably, the upper end that the straw minced the device is seted up flutedly, the size of joint board and the recess looks adaptation that the straw minced the device, the joint board passes through the recess joint in the inside that the straw minced the device, two sets of second supporting shoes of below fixedly connected with of upper end pan feeding case of fixed block, the height that highly is greater than first fixed pipe of second supporting shoe, the upper end that the straw minced the device is seted up flutedly, the trilateral lower extreme difference joint of cage rubs in the recess that the device was rubbed to the straw, the one end surface that the device was rubbed to the straw is provided with the second bolt, the straw minced the device, cage pass through second bolt fixed connection.

Preferably, the draw-in groove has been seted up to the one end of fixed block, the seed tube is fixed in the one end of fixed block through the draw-in groove, the surface of funnel is close to one end department and is provided with the external screw thread, the inside of seed tube is close to one end department and is provided with the internal thread, the funnel passes through screw thread and seed tube fixed connection.

Preferably, the seed tube and the grinding and pressing column are respectively positioned at two sides of the fixing block, an opening is formed in one side of the fixing block at the upper end of the supporting plate, and one end of the seed tube is positioned above the opening of the supporting plate.

Preferably, the water inlet has been seted up to the upper end of water tank, the upper end swing joint of water tank water inlet has the case lid, the size of water pipe and the size looks adaptation of water tank water inlet, the inside of water tank is provided with the water pump, the water pipe is fixed in the one end of fixed block through the snap ring.

Preferably, the lower end of the first support block is fixedly connected to the upper end of the support plate, four groups of second fixing rings are arranged at the corners of the upper end of the first support block, four groups of first fixing rings are arranged at the corners of the lower end of the straw mincing device, a fifth bolt is connected between the second fixing rings, and the straw mincing device is fixedly connected to the upper end of the first support block through the fifth bolt, the first fixing rings and the second fixing rings.

Preferably, the lower extreme fixed connection of fixed block is in the upper end of backup pad, the one end of fixed block is connected with the down tube, the one end fixed connection of down tube is in the one end surface of fixed block, the other end of down tube is connected with the horizontal pole, the surface of horizontal pole is provided with the cotton, the inside of backup pad is close to one end department and is provided with a set of gyro wheel, the both sides of the inside grinding and pressing post of backup pad are provided with two sets of gyro wheels.

Advantageous effects

Compared with the prior art, the invention provides a straw returning seeder, which has the following beneficial effects:

1. the straw returning seeder can enable the movable plate to generate an inclination angle by adjusting the height of the telescopic rod, can adjust the speed of sliding out the straws, can collect the straws sliding out from the upper end surface of the movable plate inside the feeding box through the straw box, inserts the clamping plate into the groove at the upper end of the straw rubbing device, and then provides support for the feeding box through the second supporting block, can prevent the straw feeding device from toppling over and bring convenience for conveying the straws, and is convenient for adjusting the height of the telescopic rod and further adjusting the inclination angle of the movable plate because the height of the second supporting block is greater than that of the first fixed pipe,

2. this straw returning seeder, can fix the screens board in the inside of joint case through the first bolt of screwing up joint case surface, can drive the second pivot through rotating device and rotate, and then can drive the screens board, the joint case rotates in the inside of straw case, can plug up the breach of straw case lower extreme through the screens board, rotational frequency through adjusting rotating device, can influence the frequency that the screens board stopped up straw case breach, and then can control the weight that the straw falls out from straw incasement portion, furthermore, according to the difference of grafting screens board quantity, the weight that the straw dropped equally can be influenced.

3. This straw returning seeder can provide reserve water source through the water tank, is provided with the water pump through the inside at the water tank, can take the inside water of water tank out, and then can wash the seeder, can fix the water pipe in the one end of fixed block through the snap ring, can play the effect of accomodating.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial schematic structural view of the present invention;

FIG. 3 is a schematic structural view of a straw feeding device according to the present invention;

FIG. 4 is a schematic view of the structure of the rotating device of the present invention;

FIG. 5 is a partial schematic structural view of the present invention;

FIG. 6 is a partial schematic structural view of the present invention;

FIG. 7 is an enlarged schematic view of A of the present invention;

FIG. 8 is a schematic view of a partial structure of the straw mincing device of the present invention;

FIG. 9 is a partial schematic structural view of the straw mincing device of the present invention.

In the figure: 1. a support plate; 2. a first support block; 3. digging a soil shovel; 4. a roller; 5. a straw mincing device; 51. a straw box; 52. a first rotating shaft; 53. a second rotating shaft; 54. grinding the column; 55. a blade; 56. a clamping plate; 57. clamping a box; 58. a first bolt; 6. a second bolt; 7. an isolation cover; 8. a straw feeding device; 81. feeding into a box; 82. a telescopic rod; 83. a third bolt; 84. a first stationary tube; 85. a clamping and connecting plate; 86. a movable plate; 9. a fixed block; 10. a water tank; 11. a rotating device; 111. a motor case; 112. a third rotating shaft; 113. a turntable; 114. a second stationary tube; 115. a fourth bolt; 12. a cross bar; 13. a diagonal bar; 14. a second support block; 15. a box cover; 16. a water pipe; 17. a snap ring; 18. a seed tube; 19. a funnel; 20. grinding the pressing column; 21. a fifth bolt; 22. a first retaining ring; 23. a second retaining ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, a straw returning seeder comprises a support plate 1, rollers 4 are movably connected inside the support plate 1 near two ends, two sets of first support blocks 2 are arranged at the upper end of the support plate 1, a soil scraping shovel 3 is arranged between the two sets of first support blocks 2 inside the support plate 1, a grinding and pressing column 20 is movably connected inside the support plate 1 near one end edge, a straw rubbing device 5 is movably connected at the upper end of the first support block 2, the straw rubbing device 5 comprises a straw box 51, a first rotating shaft 52 and a second rotating shaft 53, a grinding column 54 is arranged on the surface of the first rotating shaft 52, a blade 55 is linked to the surface of the grinding column 54, a clamping box 57 is arranged on the surface of the second rotating shaft 53, a clamping plate 56 is movably connected inside the clamping box 57, an isolation cover 7 is clamped at the upper end of the straw rubbing device 5, a fixing block 9 is arranged on one side of the straw rubbing device 5 at the upper end of the support plate 1, the front end of fixed block 9 is provided with water tank 10, the one end of fixed block 9 is provided with snap ring 17, the inside of snap ring 17 is provided with water pipe 16, the rear side of the one end water pipe 16 of fixed block 9 is provided with seed pipe 18, the one end swing joint of seed pipe 18 has funnel 19, the upper end of fixed block 9 is provided with straw pan feeding device 8, straw pan feeding device 8 includes pan feeding case 81, telescopic link 82, third bolt 83, first fixed pipe 84, the inside swing joint of pan feeding case 81 has fly leaf 86, the lower extreme of pan feeding case 81 is close to one end department and is connected with joint board 85, the one end of fixed block 9 is connected with rotating device 11, rotating device 11 includes motor case 111, fourth bolt 115, the one end surface including motor case 111 runs through and is provided with third pivot 112, the one end of third pivot 112 is connected with carousel 113, the one end of carousel 113 is connected with the fixed pipe 114 of second.

Referring to fig. 4 and 9, a first bolt 58 is disposed on a surface of the clamping box 57, the clamping plate 56 is fixedly connected to the inside of the clamping box 57 through the first bolt 58, three sets of clamping plates 56 and the clamping box 57 are disposed, and one end of the second rotating shaft 53 is fixed to the inside of the second fixing tube 114 through a fourth bolt 115.

In this embodiment, the clamping plate 56 can be fixed in the clamping box 57 by the first bolt 58, the rotation speed of the clamping plate 56 can be changed by changing the rotation degree of the second fixing pipe 114, and the opening frequency of the notch at the lower end of the straw box 51 can be influenced, so that the falling speed of the straw can be controlled.

Referring to fig. 4 and 9, one end of the first rotating shaft 52 and one end of the second rotating shaft 53 penetrate through one end surface of the straw box 51, the grinding pillar 54 is fixedly connected to the outer surface of the first rotating shaft 52, the grinding pillar 54 and the blade 55 are fixedly connected, the grinding pillar 54 is located above the clamping plate 56, the rotating device 11 is located at one side of the straw mincing device 5, and one end of the first rotating shaft 52 is fixed inside the second fixing pipe 114 through the fourth bolt 115. Cutting mill

In this embodiment, the second fixing tube 114 rotates to drive the first rotating shaft 52, the grinding column 54 and the blades 55 to rotate, and the rotation of the blades 55 can rub the straws, so as to facilitate fertilization.

Referring to fig. 2 and 3, the lower end of the first fixing tube 84 is fixedly connected to the upper end of the fixing block 9, one end of the telescopic rod 82 is slidably connected to the inside of the first fixing tube 84, the other end of the telescopic rod 82 penetrates through the lower end surface of the feeding box 81, the other end of the telescopic rod 82 is fixedly connected to the lower end of the movable plate 86, the movable plate 86 is slidably connected to the inside of the feeding box 81, and the telescopic rod 82 and the first fixing tube 84 are fixedly connected through the third bolt 83.

In this embodiment, the first fixing tube 84 is fixed at the upper end of the fixing block 9, the height of the telescopic rod 82 can be adjusted by adjusting the tightness of the third bolt 83, the inclination angle of the movable plate 86 can be changed, the sliding speed of the straws can be further influenced, and the use is convenient.

Referring to fig. 3 and 5, a groove is formed in the upper end of the straw mincing device 5, the size of the clamping plate 85 is matched with that of the straw mincing device 5, the clamping plate 85 is clamped inside the straw mincing device 5 through the groove, two groups of second supporting blocks 14 are fixedly connected below the upper end feeding box 81 of the fixed block 9, the height of each second supporting block 14 is larger than that of the first fixed pipe 84, a groove is formed in the upper end of the straw mincing device 5, the three lower ends of the three surfaces of the isolation hood 7 are respectively clamped in the groove of the straw mincing device 5, a second bolt 6 is arranged on one end surface of the straw mincing device 5, and the straw mincing device 5 and the isolation hood 7 are fixedly connected through the second bolt 6.

In this embodiment, the lower end of the second supporting block 14 is fixed to the upper end of the fixing block 9, the second supporting block 14 can provide support for the straw feeding device 8, the lower end of the clamping plate 85 is inserted into the upper end groove of the straw mincing device 5, the stability is improved, the straw feeding device 8 is prevented from toppling over, the isolation cover 7 is fixed inside the straw mincing device 5 through the second bolt 6, and the situation that the straw floats out can be prevented.

Referring to fig. 5 and 6, a clamping groove is formed at one end of the fixing block 9, the seed tube 18 is fixed at one end of the fixing block 9 through the clamping groove, an external thread is arranged at a position, close to one end, of the outer surface of the funnel 19, an internal thread is arranged at a position, close to one end, of the inner portion of the seed tube 18, and the funnel 19 is fixedly connected with the seed tube 18 through a thread.

The seed tube 18 and the grinding and pressing column 20 are respectively positioned at two sides of the fixing block 9, one side of the fixing block 9 at the upper end of the supporting plate 1 is provided with an opening, and one end of the seed tube 18 is positioned above the opening of the supporting plate 1.

In this embodiment, can be convenient for install and dismantle through threaded connection between seed pipe 18, the funnel 19, the seed falls into the inside of seed pipe 18 through funnel 19, from the one end roll-off of seed pipe 18 and fall into ground, can fill up the pit near the seed after planting through grinding and pressing post 20.

Referring to fig. 5, a water inlet is formed at the upper end of the water tank 10, a tank cover 15 is movably connected to the upper end of the water inlet of the water tank 10, the size of the water pipe 16 is matched with the size of the water inlet of the water tank 10, a water pump is arranged inside the water tank 10, and the water pipe 16 is fixed at one end of the fixing block 9 through a snap ring 17.

In this embodiment, the seed sowing machine can be cleaned by unscrewing the cover 15 and inserting one end of the water pipe 16 into the water pump inside the water tank 10.

Referring to fig. 1 and 7, the lower end of the first support block 2 is fixedly connected to the upper end of the support plate 1, four sets of second fixing rings 23 are disposed at the upper end corners of the first support block 2, four sets of first fixing rings 22 are disposed at the lower end corners of the straw mincing device 5, a fifth bolt 21 is connected between the second fixing rings 23, and the straw mincing device 5 is fixedly connected to the upper end of the first support block 2 through the fifth bolt 21, the first fixing rings 22 and the second fixing rings 23.

In this embodiment, the straw mincing device 5 and the first support block 2 can be fixedly connected through the fifth bolt 21, the first fixing ring 22 and the second fixing ring 23.

Referring to fig. 2 and 6, the lower end of the fixing block 9 is fixedly connected to the upper end of the supporting plate 1, one end of the fixing block 9 is connected to the inclined rod 13, one end of the inclined rod 13 is fixedly connected to one end surface of the fixing block 9, the other end of the inclined rod 13 is connected to the cross rod 12, cotton cloth is arranged on the surface of the cross rod 12, a set of rollers 4 is arranged in the supporting plate 1 near one end, and two sets of rollers 4 are arranged on two sides of the grinding and pressing column 20 in the supporting plate 1.

In this embodiment, both hands hold the surface of the cross rod 12 and push forward, and because the supporting plate 1 and the fixing block 9 are fixedly connected, the supporting plate 1 can drive the roller 4 to move forward under the action of thrust.

When the straw rubbing device works, the lower end of the straw box 51 is placed at the upper end of the first supporting block 2, the first rotating shaft 52 and the second rotating shaft 53 are respectively inserted into the second fixing pipe 114, the first fixing ring 22 and the second fixing ring 23 are aligned, the fifth bolt 21 is screwed down, the straw rubbing device 5 is fixed at the upper end of the first supporting block 2, the clamping plate 85 is inserted into the groove at the upper end of the straw rubbing device 5, the lower end of the feeding box 81 is placed at the upper end of the second supporting block 14, when the straws are required to be loaded, the lower end of the isolation cover 7 is inserted into the groove at the upper end of the straw rubbing device 5, the second bolt 6 is screwed down, the isolation cover 7 is fixed inside the straw rubbing device 5, the situation that the straws fly out when the straws are toppled over is prevented, the working efficiency is influenced, the third bolt 83 is unscrewed, the surface of the telescopic rod 82 is held and is stretched up and down, the inclination angle of the movable plate 86 is adjusted according to requirements, further changing the speed of the straw falling into the straw mincing device 5, holding the surface of the cross rod 12 with both hands and pushing forwards, because the support plate 1 and the fixed block 9 are fixedly connected, the support plate 1 drives the roller 4 to move forwards under the action of thrust, so as to drive the soil-digging shovel 3 to slide on the ground, a pit is left on the ground through the soil-digging shovel 3, seeds are put into the funnel 19 and fall into the pit along a pipeline, then the pit is filled under the grinding pressure of the grinding and pressing column 20, when fertilizer application is needed, the number of the clamping plates 56 is selected according to the needs, the selected clamping plates 56 are inserted into the clamping box 57, the first bolt 58 is tightened to fix the clamping plates 56 in the clamping box 57, the fourth bolt 115 is tightened, the motor in the motor box 111 is started and the frequency is adjusted, when the seeder needs to be cleaned, the box cover 15 is opened, one end of the water pipe 16 is connected with the water pump in the water tank 10, the start-up water pump is whole clean to the seeder, and the clean back that finishes, through snap ring 17 with 16 cards of water pipe on the one end surface of fixed block 9, the completion is to accomodating of water pipe 16.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a seeder returning straws to field, includes backup pad (1), its characterized in that: the grinding device is characterized in that rollers (4) are movably connected to the inner portion of the supporting plate (1) close to two ends, two groups of first supporting blocks (2) are arranged at the upper end of the supporting plate (1), a soil scraping shovel (3) is arranged between the two groups of first supporting blocks (2) in the supporting plate (1), a grinding and pressing column (20) is movably connected to the edge of one end, the inner portion of the supporting plate (1) close to one end, a straw grinding device (5) is movably connected to the upper end of the first supporting block (2), the straw grinding device (5) comprises a straw box (51), a first rotating shaft (52) and a second rotating shaft (53), a grinding column (54) is arranged on the surface of the first rotating shaft (52), a cutter blade (55) is connected to the surface of the grinding column (54), a clamping box (57) is arranged on the surface of the second rotating shaft (53), and a clamping plate (56) is movably connected to the inner portion of the clamping box (57), an isolation cover (7) is clamped at the upper end of the straw rubbing device (5), a fixed block (9) is arranged on one side of the straw rubbing device (5) at the upper end of the supporting plate (1), a water tank (10) is arranged at the front end of the fixed block (9), a clamping ring (17) is arranged at one end of the fixed block (9), a water pipe (16) is arranged inside the clamping ring (17), a seed pipe (18) is arranged on the rear side of the water pipe (16) at one end of the fixed block (9), a funnel (19) is movably connected at one end of the seed pipe (18), a straw feeding device (8) is arranged at the upper end of the fixed block (9), the straw feeding device (8) comprises a feeding box (81), a telescopic rod (82), a third bolt (83) and a first fixed pipe (84), and a movable plate (86) is movably connected inside the feeding box (81), the lower extreme of pan feeding case (81) is close to one end department and is connected with joint board (85), the one end of fixed block (9) is connected with rotating device (11), rotating device (11) include motor case (111), fourth bolt (115), the one end surface of motor case (111) runs through and is provided with third pivot (112), the one end of third pivot (112) is connected with carousel (113), the one end of carousel (113) is connected with second fixed pipe (114), the surface of joint case (57) is provided with first bolt (58), joint board (56) are through first bolt (58) fixed connection in the inside of joint case (57), joint board (56), joint case (57) are provided with three groups, the one end of second pivot (53) is fixed in the inside of second fixed pipe (114) through fourth bolt (115), the lower extreme fixed connection of first fixed pipe (84) is in the upper end of fixed block (9), one end of the telescopic rod (82) is connected to the inside of the first fixed pipe (84) in a sliding manner, the other end of the telescopic rod (82) penetrates through the lower end surface of the feeding box (81), the other end of the telescopic rod (82) is fixedly connected with the lower end of the movable plate (86), the movable plate (86) is connected with the inside of the feeding box (81) in a sliding manner, the telescopic rod (82) and the first fixed pipe (84) are fixedly connected through a third bolt (83), a groove is formed in the upper end of the straw mincing device (5), the size of the clamping plate (85) is matched with the groove of the straw mincing device (5), the clamping plate (85) is clamped in the straw mincing device (5) through the groove, two groups of second supporting blocks (14) are fixedly connected to the upper end of the fixed block (9) and the lower portion of the feeding box (81), and the height of the second supporting blocks (14) is greater than that of the first fixed pipe (84), the lower ends of three surfaces of the isolation cover (7) are respectively clamped in grooves of the straw rubbing device (5), a second bolt (6) is arranged on the surface of one end of the straw rubbing device (5), the straw rubbing device (5) and the isolation cover (7) are fixedly connected through the second bolt (6), the lower end of the first supporting block (2) is fixedly connected to the upper end of the supporting plate (1), four groups of second fixing rings (23) are arranged at the corners of the upper end of the first supporting block (2), four groups of first fixing rings (22) are arranged at the corners of the lower end of the straw rubbing device (5), a fifth bolt (21) is connected between the first fixing ring (22) and the second fixing rings (23), the straw rubbing device (5) is fixedly connected to the upper end of the first supporting block (2) through the fifth bolt (21), the first fixing rings (22) and the second fixing rings (23), the lower extreme fixed connection of fixed block (9) in the upper end of backup pad (1), the one end of fixed block (9) is connected with down tube (13), the one end fixed connection of down tube (13) in the one end surface of fixed block (9), the other end of down tube (13) is connected with horizontal pole (12), the surface of horizontal pole (12) is provided with the cotton, the inside of backup pad (1) is close to one end department and is provided with a set of gyro wheel (4), the both sides of the inside grinding compression leg (20) of backup pad (1) are provided with two sets of gyro wheels (4).

2. The straw returning seeder as claimed in claim 1, wherein: one end of each of the first rotating shaft (52) and the second rotating shaft (53) penetrates through one end surface of the straw box (51), the grinding column (54) is fixedly connected to the outer surface of the first rotating shaft (52), the grinding column (54) and the blade (55) are fixedly connected, the grinding column (54) is located above the clamping plate (56), the rotating device (11) is located on one side of the straw rubbing device (5), and one end of the first rotating shaft (52) is fixed inside the second fixing pipe (114) through a fourth bolt (115).

3. The straw returning seeder as claimed in claim 1, wherein: the draw-in groove has been seted up to the one end of fixed block (9), seed pipe (18) are fixed in the one end of fixed block (9) through the draw-in groove, the surface of funnel (19) is close to one end department and is provided with the external screw thread, the inside of seed pipe (18) is close to one end department and is provided with the internal thread, funnel (19) pass through screw thread and seed pipe (18) fixed connection.

4. The straw returning seeder as claimed in claim 1, wherein: the seed tube (18) and the grinding and pressing column (20) are respectively located on two sides of the fixing block (9), an opening is formed in one side of the upper end fixing block (9) of the supporting plate (1), and one end of the seed tube (18) is located above the opening of the supporting plate (1).

5. The straw returning seeder as claimed in claim 1, wherein: the water inlet has been seted up to the upper end of water tank (10), the upper end swing joint of water tank (10) water inlet has case lid (15), the size of water pipe (16) and the size looks adaptation of water tank (10) water inlet, the inside of water tank (10) is provided with the water pump, water pipe (16) are fixed in the one end of fixed block (9) through snap ring (17).