Auxiliary straw returning device of rice transplanter

Abstract

The invention belongs to the technical field of straw returning, and particularly relates to a rice transplanter straw returning assisting device which comprises two bottom plates, the upper surfaces of the two bottom plates are fixedly connected with the same connecting block, one side of the connecting block is in transmission connection with two transmission rollers, and the circumferential surfaces of the two transmission rollers are in transmission connection with the same first strip steel. A plurality of fixing cones are fixedly connected to the circumferential surface of the first strip steel, the cleaning assembly comprises a cleaning roller rotationally arranged on one side of the first strip steel, and the cleaning roller is used for cleaning the fixing cones on the circumferential surface of the first strip steel. The problems that straw returning efficiency of the harrow teeth is reduced, some straw cannot be effectively turned into soil, and the straw returning effect is poor due to the fact that the straw is likely to be wound or clamped on the harrow teeth when passing through the harrow teeth and mulching films are likely to be left in the soil and also likely to be clamped on the harrow teeth are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of returning straw to fields, in particular to a rice transplanter-assisted straw returning device. Background Art

[0002] After the crops are harvested, there is a lot of straw left on the farmland. If it is a paddy field, there will also be weeds and duckweed, which seriously affect the root system of the crop seedlings entering the soil. It must be properly treated. At present, the straw is usually treated by burning, which not only seriously pollutes the surrounding environment, but also easily causes fire. Therefore, due to the impact of straw burning on the environment, and the consideration of returning straw to the field to fertilize the soil and facilitate the growth of crops, returning straw to the field has become a development trend of agricultural farming.

[0003] A patent with publication number CN106576463B discloses a rice transplanter auxiliary straw return device, including a bracket, a grass pressing track and a plurality of grass pressing tooth discs, the grass pressing track is sleeved on two rollers, a plurality of rake teeth are distributed on the grass pressing track, the roller is fixed on the roller shaft, and the two ends of the roller shaft are respectively fixed to the bracket through bearings; the grass pressing tooth disc is sleeved on the connecting shaft, and the two ends of the connecting shaft are respectively fixed to the bracket, and a gear shaft is also fixed on the bracket, and the gear shaft is meshed with the grass pressing tooth disc; two power mechanisms are also fixed on the bracket, one of which is used to drive the grass pressing track to press the straw or weeds on the ground into the shallow layer underground and comb them into a horizontal direction, and the other is used to drive the grass pressing tooth disc to rotate, and further press the straw or weeds in the shallow layer underground into the deep underground.

[0004] There are still some problems in the actual application of the above scheme. In the process of using the existing rice transplanter-assisted straw return device, since the tips of the rake teeth are very sharp, when the straw is too wet or too long, it may easily get entangled or stuck on the rake teeth when passing through the rake teeth. There may also be residual mulch in the soil, which may also get stuck on the rake teeth, resulting in a decrease in the efficiency of the rake teeth in returning the straw to the field, so that some straw cannot be effectively turned into the soil, resulting in a poor return effect.

[0005] To this end, the present invention provides a rice transplanter auxiliary straw returning device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a rice transplanter auxiliary straw return device described in the present invention comprises two bottom plates, the upper surfaces of the two bottom plates are fixedly connected to the same connecting block, one side of the connecting block is transmission-connected to two transmission rollers, the circumferential surfaces of the two transmission rollers are transmission-connected to the same first steel strip, the circumferential surface of the first steel strip is fixedly connected to a plurality of fixed cones, one side of the connecting block is fixedly connected to a cleaning assembly, the cleaning assembly comprises a cleaning roller rotatably arranged on one side of the first steel strip, and the cleaning roller is used for cleaning the fixed cones on the circumferential surface of the first steel strip.

[0008] Preferably, the cleaning assembly further comprises a dual-axis motor fixedly connected to one side of the connecting block, the output end of the dual-axis motor is fixedly connected to a cleaning roller, the circumferential surface of the cleaning roller is fixedly connected to a plurality of fixing columns, and every two of the fixing columns are fixedly connected to both sides of the fixed cone.

[0009] Preferably, a striking member is provided at one end of the dual-axis motor away from the cleaning roller, and the striking member includes a reciprocating screw rotatably connected above a fixed plate, and a sliding plate is slidably connected to the circumferential surface of the reciprocating screw, and the sliding plate is used to strike the gear teeth of the first pressure wheel.

[0010] Preferably, the striking member also includes a first bevel gear fixedly connected to the output end of the dual-axis motor, the first bevel gear is fixedly connected to the end away from the cleaning roller, the first bevel gear is meshed with a second bevel gear, a reciprocating screw is fixedly connected to the middle part of the second bevel gear, both ends of the reciprocating screw are rotatably connected to limit blocks, and the two limit blocks are fixedly connected to the upper surface of the base plate and the connecting block.

[0011] Preferably, a protrusion is fixedly connected to one end of the sliding plate close to the first pressure wheel, the protrusion is bidirectional, and a metal spring is provided between the sliding plate and the protrusion.

[0012] Preferably, a baffle is fixedly connected to one side of the connecting block close to the reciprocating screw, a first sliding groove is provided on the lower surface of the baffle, a first sliding block is fixedly connected to the upper surface of the sliding plate, and the first sliding block can slide along the first sliding groove.

[0013] Preferably, a limiting plate is fixedly connected between the two bottom plates, and the limiting plate is used to limit the position of the straw.

[0014] Preferably, a positioning shaft is rotatably connected between the two base plates, a plurality of first pressure wheels are fixedly connected to the circumferential surface of the positioning shaft, two fixing rods are fixedly connected to both sides of each of the first pressure wheels, a slot is provided between the two fixing rods, and a plurality of the first pressure wheels are meshed with rotating rollers.

[0015] Preferably, a storage box is fixedly connected to the upper surface of the connection block, a pressure pump is fixedly connected to the upper surface of the storage box, a plurality of spray holes are opened on one side of the pressure pump, and the plurality of spray holes are used to spray out the straw composting agent.

[0016] Preferably, a first guide rail is fixedly connected to the upper surface of the storage box, a sliding track is provided in the first guide rail, a movable plate is slidably connected in the sliding track, a plurality of brushes are provided on the side of the movable plate abutting against the spray hole, and a sealing cover is threadedly connected to the upper surface of the storage box.

[0017] The beneficial effects of the present invention are as follows: 1. The rice transplanter auxiliary straw returning device described in the present invention can drive two transmission rollers to transmit by starting the built-in motor inside the connecting block, thereby driving the first steel strip to rotate. The rotation of the first steel strip can drive the fixed cone on the first steel strip to press the straw or weeds on the ground into the shallow soil layer and comb them into a horizontal direction. However, because the humidity of the straw is too high or the length is too long, part of the straw will be stuck on the fixed cone. If the machine is stopped for cleaning alone, the returning efficiency will be affected and the process will be cumbersome. Therefore, by starting the dual-axis motor, the dual-axis motor will drive the cleaning roller at one of the output ends to rotate. After the cleaning roller rotates, it can drive the fixed column on its circumferential surface to clean the straw that may be stuck on the fixed cone. The fixed column will clean up the straw stuck on the circumferential surface of the fixed cone, and then the straw can be cleaned at any time, thereby improving the transplanting effect and making its transplanting efficiency higher.

[0018] 2. The rice transplanter auxiliary straw return device described in the present invention has a baffle fixed on one side of the reciprocating screw. First, a first sliding block is fixed on the upper surface of the sliding plate, and a first sliding groove is provided on the lower surface of the baffle. The first sliding block can drive the sliding plate to slide along the first sliding groove. The sliding of the first sliding block can drive the sliding plate to slide more stably, making the sliding of the sliding plate more stable. At the same time, the soil ground is squeezed by the first pressure wheel to improve the quality of returning to the field.

[0019] 3. The rice transplanter auxiliary straw returning device described in the present invention drives the first bevel gear fixed to the other end of the double-axis motor when it is started. The rotation of the first bevel gear can drive the second bevel gear to rotate. After the second bevel gear rotates, the reciprocating screw can drive the sliding plate with its circumferential surface sliding connection to slide. A protrusion is fixed to the lower surface of the sliding plate, and a spring piece is set between the sliding plate and the protrusion, so that the spring piece can drive the protrusion to hit the first pressure wheel to clean the soil stuck on the pressure wheel and reset it, thereby achieving a better cleaning effect, so that the first pressure wheel can better squeeze the soil.

[0020] 4. The rice transplanter-assisted straw return device described in the present invention starts the pressure pump on the upper surface of the storage box during the process of returning the straw to the field. The pressure pump will spray the straw composting agent stored in the storage box, which is then sprayed on the surface of the straw, so that the straw can be decomposed more quickly and become nutrients for the soil after being returned to the field. In addition, a sealing cover is threadedly connected to the upper surface of the storage box. When the straw composting agent in the storage box is used for a certain period of time, it will gradually decrease. At this time, the sealing cover can be threadedly rotated to open the sealing cover, so that the straw composting agent can be added to the storage box, thereby improving the effect of returning the straw to the field. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention; Figure 2 It is a structural schematic diagram of the main body of the present invention; Figure 3 is a schematic structural diagram of the striking assembly of the present invention; Figure 4 It is a partial structural schematic diagram of the main body of the present invention; Figure 5 It is a structural schematic diagram of the sliding plate of the present invention; Figure 6 It is a structural schematic diagram of a fixed column of the present invention; Figure 7 The present invention Figure 2 The enlarged view of point A in the middle; In the figure: 1, bottom plate; 11, limit plate; 12, positioning shaft; 13, first pressure wheel; 14, fixing rod; 15, rotating roller; 16, card slot; 2. Connecting block; 21. Dual-axis motor; 22. Fixing plate; 23. Cleaning roller; 231. Fixed column; 24, second bevel gear; 25, reciprocating screw; 26, limit block; 27, baffle; 28, first slide groove; 29, first slide block; 210, slide plate; 211, convex block; 3. Storage box; 31. Pressure pump; 32. Sealing cover; 33. Spray hole; 34. First guide rail; 35. Sliding rail; 36. Moving plate; 4. First strip steel; 41. Fixed cone; 42. Transmission roller. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] Example:

[0025] like Figures 1 to 7 As shown, a rice transplanter auxiliary straw returning device described in an embodiment of the present invention comprises two bottom plates 1, the upper surfaces of the two bottom plates 1 are fixedly connected to the same connecting block 2, one side of the connecting block 2 is transmission-connected to two transmission rollers 42, the circumferential surfaces of the two transmission rollers 42 are transmission-connected to the same first strip steel 4, the circumferential surface of the first strip steel 4 is fixedly connected to a plurality of fixed cones 41, one side of the connecting block 2 is fixedly connected to a cleaning assembly, the cleaning assembly comprises a cleaning roller 23 rotatably arranged on one side of the first strip steel 4, the cleaning roller 23 is used for cleaning the fixed cone 41 on the circumferential surface of the first strip steel 4, the cleaning assembly also comprises a dual-axis motor 21 fixedly connected to one side of the connecting block 2, the output end of the dual-axis motor 21 is fixedly connected to a cleaning roller 23, the circumferential surface of the cleaning roller 23 is fixedly connected to a plurality of fixed columns 231, and every two of the fixed columns 231 are fixedly connected to the two sides of the fixed cone 41.

[0026] Specifically, in the process of using the existing rice transplanter auxiliary straw return device, since the tip of the rake teeth is very sharp, when the straw is too wet or too long, it may be easily entangled or stuck on the rake teeth when passing through the rake teeth, and there may be residual mulch in the soil, which may also be stuck on the rake teeth, resulting in a decrease in the efficiency of the rake teeth in returning the straw to the field, so that some straw cannot be effectively turned into the soil, resulting in a poor return effect; Therefore, the present invention solves this problem by setting a corresponding structure. First, the device is fixedly installed in front of the rice transplanter, that is, in front of the traveling direction. After the installation is completed, the built-in motor inside the connecting block 2 is started to drive the two transmission rollers 42 to drive the first steel strip 4 to rotate. The rotation of the first steel strip 4 can drive the fixed cone 41 on the first steel strip 4 to press the straw or weeds on the ground into the shallow soil layer and comb them into a horizontal direction. However, due to the excessive humidity or length of the straw, part of the straw will be stuck in the fixed cone. 41, if the machine is stopped for cleaning alone, the efficiency of returning to the field will be affected, and the process is cumbersome. Therefore, by starting the dual-axis motor 21, the dual-axis motor 21 will drive the cleaning roller 23 at one of the output ends to rotate. After the cleaning roller 23 rotates, it can drive the fixed column 231 on its circumferential surface to clean the straw that may be stuck on the fixed cone 41. The fixed column 231 will clean the straw stuck on the circumferential surface of the fixed cone 41, and then the straw can be cleaned at any time, thereby improving the effect of transplanting rice, making its transplanting and returning to the field efficiency higher; The problem that the tips of the rake teeth are very sharp and when the straw is too wet or too long, it may easily get entangled or stuck on the rake teeth when passing through the rake teeth, and that there may also be residual mulch in the soil which may also get stuck on the rake teeth, thereby reducing the efficiency of the rake teeth in returning the straw to the field, making it impossible for some straw to be effectively turned into the soil, resulting in a poor returning effect, is solved.

[0027] like Figures 3 to 5 As shown, in this embodiment, a striking member is provided at one end of the dual-axis motor 21 away from the cleaning roller 23, and the striking member includes a reciprocating screw 25 rotatably connected to the top of the fixed plate 22, and the circumferential surface of the reciprocating screw 25 is slidably connected to a sliding plate 210, and the sliding plate 210 is used to strike the gear teeth of the first pressure wheel 13, and the striking member also includes a first bevel gear fixedly connected to the output end of the dual-axis motor 21, the first bevel gear is fixedly connected to the end away from the cleaning roller 23, the first bevel gear is meshed with a second bevel gear 24, and the middle part of the second bevel gear 24 is fixedly connected to the reciprocating screw 25, and both ends of the reciprocating screw 25 are rotatably connected to limit blocks 26, and the two limit blocks 26 are fixedly connected to the upper surfaces of the bottom plate 1 and the connecting block 2, and the end of the sliding plate 210 close to the first pressure wheel 13 is fixedly connected to a protrusion 211, and the protrusion 211 is bidirectional, and there is a metal spring between the sliding plate 210 and the protrusion 211.

[0028] Specifically, when the dual-axis motor 21 is started, it will drive the first bevel gear fixed to the other end thereof. The rotation of the first bevel gear can drive the second bevel gear 24 to rotate. After the second bevel gear 24 rotates, the reciprocating screw 25 can be driven by the second bevel gear 24 to drive the sliding plate 210 connected to its circumferential surface in a sliding manner. A protrusion 211 is fixed to the lower surface of the sliding plate 210. A spring piece is provided between the connection between the sliding plate 210 and the protrusion 211, so that the spring piece can drive the protrusion 211 to hit the first pressure wheel 13, clean the soil adhered to the first pressure wheel 13, and can also be reset, thereby achieving a better cleaning effect, so that the first pressure wheel 13 can better squeeze the soil.

[0029] like Figure 7 As shown, in this embodiment, a baffle plate 27 is fixedly connected to one side of the connecting block 2 close to the reciprocating screw 25, and a first slide groove 28 is provided on the lower surface of the baffle plate 27. A first slider 29 is fixedly connected to the upper surface of the sliding plate 210, and the first slider 29 can slide along the first slide groove 28. A limiting plate 11 is fixedly connected between the two bottom plates 1, and the limiting plate 11 is used to limit the position of the straw. A positioning shaft 12 is rotatably connected between the two bottom plates 1, and a plurality of first pressing wheels 13 are fixedly connected to the circumferential surface of the positioning shaft 12, and two fixing rods 14 are fixedly connected to both sides of each of the first pressing wheels 13, and a slot 16 is provided between the two fixing rods 14, and a plurality of the first pressing wheels 13 are meshed with rotating rollers 15.

[0030] Specifically, a baffle plate 27 is fixedly connected to one side of the reciprocating screw 25, and a first slider 29 is firstly fixedly connected to the upper surface of the sliding plate 210. A first sliding groove 28 is provided on the lower surface of the baffle plate 27. The first slider 29 can drive the sliding plate 210 to slide along the first sliding groove 28. The sliding of the first slider 29 can drive the sliding plate 210 to slide more stably, so that the sliding of the sliding plate 210 is more stable, and at the same time, the soil ground is squeezed by the first pressure wheel 13 to improve the quality of returning to the field.

[0031] Example:

[0032] like Figures 1 to 7 As shown, compared with Example 1, another embodiment of the present invention is: a storage box 3 is fixedly connected to the upper surface of the connecting block 2, a pressure pump 31 is fixedly connected to the upper surface of the storage box 3, a plurality of spray holes 33 are opened on one side of the pressure pump 31, and the plurality of spray holes 33 are used to spray out straw composting agent, a first guide rail 34 is fixedly connected to the upper surface of the storage box 3, a sliding rail 35 is opened in the first guide rail 34, a movable plate 36 is slidably connected in the sliding rail 35, a plurality of brushes are arranged on the side of the movable plate 36 abutting against the spray hole 33, and a sealing cover 32 is threadedly connected to the upper surface of the storage box 3.

[0033] Specifically, in the process of replacing straw with fields, by starting the pressure pump 31 on the upper surface of the storage box 3, the pressure pump 31 will spray the straw composting agent stored in the storage box 3, thereby spraying it on the surface of the straw, so that the straw can be decomposed more quickly into nutrients for the soil after being returned to the field. In addition, a sealing cover 32 is threadedly connected to the upper surface of the storage box 3. When the straw composting agent in the storage box 3 is used for a certain period of time, it will gradually decrease. At this time, the sealing cover 32 is threadedly rotated to open it, so that the straw composting agent can be added to the storage box 3, thereby improving the effect of returning the straw to the field.

[0034] Working principle: first, the device is fixedly installed in front of the rice transplanter, that is, in front of the traveling direction. After the installation is completed, by starting the built-in motor inside the connecting block 2, the two transmission rollers 42 can be driven to transmit, thereby driving the first steel strip 4 to rotate. The rotation of the first steel strip 4 can drive the fixed cone 41 on the first steel strip 4 to press the straw or weeds on the ground into the shallow soil layer and comb them into a horizontal direction. However, because the humidity of the straw is too high or the length is too long, part of the straw will be stuck on the fixed cone 41. If it is stopped for cleaning alone, it will affect the efficiency of returning to the field, and the process is cumbersome. Therefore, by starting the dual-axis motor 21, the dual-axis motor 21 will drive the cleaning roller 23 at one of the output ends to rotate. After the cleaning roller 23 rotates, it can drive the fixed column 231 on its circumferential surface to clean the straw that may be stuck on the fixed cone 41. The fixed column 231 will clean up the straw stuck on the circumferential surface of the fixed cone 41, and then the straw can be cleaned at any time, thereby improving the effect of transplanting rice and making its transplanting efficiency higher. When the dual-axis motor 21 is started, it will drive the first bevel gear fixed to the other end thereof. The rotation of the first bevel gear can drive the second bevel gear 24 to rotate. After the second bevel gear 24 rotates, the reciprocating screw 25 can be driven by the second bevel gear 24 to drive the sliding plate 210 slidably connected to its circumferential surface. The lower surface of the sliding plate 210 is fixed with a protrusion 211. A spring piece is arranged between the connection between the sliding plate 210 and the protrusion 211, so that the spring piece can drive the protrusion 211 to hit the first pressing wheel 13, clean the soil adhered to the pressing wheel, and can also reset it, thereby achieving a better cleaning effect, so that the first pressing wheel 13 can better squeeze the soil; In addition, a baffle plate 27 is fixedly connected to one side of the reciprocating screw 25, and a first slider 29 is fixedly connected to the upper surface of the sliding plate 210. A first slide groove 28 is provided on the lower surface of the baffle plate 27. The first slider 29 can drive the sliding plate 210 to slide along the first slide groove 28. The sliding of the first slider 29 can drive the sliding plate 210 to slide more stably, so that the sliding of the sliding plate 210 is more stable, and at the same time, the soil ground is squeezed by the first pressing wheel 13 to improve the quality of returning to the field; Finally, in the process of replacing straw in the field, by starting the pressure pump 31 on the upper surface of the storage box 3, the pressure pump 31 will spray the straw composting agent stored in the storage box 3, thereby spraying it on the surface of the straw, so that the straw can be decomposed more quickly into nutrients for the soil after being returned to the field. In addition, a sealing cover 32 is threadedly connected to the upper surface of the storage box 3. When the straw composting agent in the storage box 3 is used for a certain period of time, it will gradually decrease. At this time, the sealing cover 32 is threadedly rotated to open the sealing cover 32, so that the straw composting agent can be added to the storage box 3, thereby improving the effect of returning the straw to the field.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rice transplanter auxiliary straw return device, characterized in that: The invention comprises two bottom plates (1), the upper surfaces of the two bottom plates (1) are fixedly connected to a same connecting block (2), one side of the connecting block (2) is drivingly connected to two driving rollers (42), the circumferential surfaces of the two driving rollers (42) are drivingly connected to a same first steel strip (4), the circumferential surface of the first steel strip (4) is fixedly connected to a plurality of fixed cones (41), one side of the connecting block (2) is fixedly connected to a cleaning assembly, the cleaning assembly comprises a cleaning roller (23) rotatably arranged on one side of the first steel strip (4), the cleaning roller (23) is used to clean the fixed cones (41) on the circumferential surface of the first steel strip (4).

2. The rice transplanter auxiliary straw returning device according to claim 1, characterized in that: The cleaning assembly further comprises a dual-axis motor (21) fixedly connected to one side of the connecting block (2); a cleaning roller (23) is fixedly connected to the output end of the dual-axis motor (21); a plurality of fixing columns (231) are fixedly connected to the circumferential surface of the cleaning roller (23); and every two of the fixing columns (231) are fixedly connected to the two sides of the fixing cone (41).

3. The rice transplanter auxiliary straw returning device according to claim 2, characterized in that: A striking member is provided at one end of the dual-axis motor (21) away from the cleaning roller (23), the striking member comprising a reciprocating screw (25) rotatably connected above the fixed plate (22), the circumferential surface of the reciprocating screw (25) being slidably connected to a sliding plate (210), the sliding plate (210) being used to strike the gear teeth of the first pressure wheel (13).

4. The rice transplanter auxiliary straw returning device according to claim 3, characterized in that: The striking member further comprises a first bevel gear fixedly connected to the output end of the dual-axis motor (21), the first bevel gear being fixedly connected to an end away from the cleaning roller (23), the first bevel gear being meshed with a second bevel gear (24), a reciprocating screw (25) being fixedly connected to the middle of the second bevel gear (24), both ends of the reciprocating screw (25) being rotatably connected to limit blocks (26), and the two limit blocks (26) being fixedly connected to the upper surfaces of the bottom plate (1) and the connecting block (2).

5. The rice transplanter auxiliary straw returning device according to claim 3, characterized in that: A protrusion (211) is fixedly connected to one end of the sliding plate (210) close to the first pressure wheel (13); the protrusion (211) is bidirectional, and a metal spring is disposed between the sliding plate (210) and the protrusion (211).

6. The rice transplanter auxiliary straw returning device according to claim 4, characterized in that: A baffle plate (27) is fixedly connected to one side of the connecting block (2) close to the reciprocating screw rod (25); a first slide groove (28) is provided on the lower surface of the baffle plate (27); a first sliding block (29) is fixedly connected to the upper surface of the sliding plate (210); and the first sliding block (29) can slide along the first slide groove (28).

7. The rice transplanter auxiliary straw returning device according to claim 1, characterized in that: A limiting plate (11) is fixedly connected between the two bottom plates (1), and the limiting plate (11) is used to limit the position of the straw.

8. The rice transplanter auxiliary straw returning device according to claim 1, characterized in that: A positioning shaft (12) is rotatably connected between the two bottom plates (1), a plurality of first pressure wheels (13) are fixedly connected to the circumferential surface of the positioning shaft (12), two fixing rods (14) are fixedly connected to both sides of each first pressure wheel (13), a slot (16) is provided between the two fixing rods (14), and a plurality of first pressure wheels (13) are meshed with rotating rollers (15).

9. The rice transplanter auxiliary straw returning device according to claim 1, characterized in that: A storage box (3) is fixedly connected to the upper surface of the connection block (2), a pressure pump (31) is fixedly connected to the upper surface of the storage box (3), a plurality of spray holes (33) are provided on one side of the pressure pump (31), and the plurality of spray holes (33) are used to spray out the straw composting agent.

10. The rice transplanter auxiliary straw returning device according to claim 9, characterized in that: The upper surface of the storage box (3) is fixedly connected to a first guide rail (34), a sliding rail (35) is provided in the first guide rail (34), a movable plate (36) is slidably connected in the sliding rail (35), a plurality of brushes are provided on the side of the movable plate (36) abutting against the spray hole (33), and a sealing cover (32) is threadedly connected to the upper surface of the storage box (3).

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