Wheat straw self-adaptive laying device for desertification control

Abstract

The invention discloses a wheat straw self-adaptive laying device for desertification control, and relates to the technical field of desertification control engineering, the wheat straw self-adaptive laying device for desertification control comprises a moving seat, a first laying mechanism, a second laying mechanism and a guide mechanism, wheat straw can be simultaneously laid in the longitudinal direction and the transverse direction through the first laying mechanism and the second laying mechanism, and then the laying efficiency is effectively improved; the laid wheat straw is laid in an L shape, in the laying process, the material conveying density of a material guiding mechanism can be adjusted according to the desert terrain, then the laying density of the wheat straw is changed, an adjusting base in a second material laying mechanism is driven to slide along a second shell, and therefore the length of the transversely-laid wheat straw is changed, and meanwhile the pressing frequency of a first pressing plate and a second pressing plate is adjusted; therefore, the laying specification of the wheat straw is changed, namely, the laying specification of the straw checks is changed, then self-adaptive adjustment of the wheat straw laying device is achieved, and the requirement for desertification control is better met.

Description

Technical Field

[0001] The invention relates to the technical field of sand control engineering, in particular to a wheat straw self-adaptive paving device for sand control. Background Art

[0002] Wheat straw laying devices are primarily used for laying straw grids in desertification control, creating sand barriers, slowing wind speeds, fixing sand dunes, and preventing windborne sand migration. There are two main methods for laying straw grids: manual and mechanized. Manual laying is labor-intensive, inefficient, and costly, making it unsuitable for large-scale desertification control. Mechanized laying devices, on the other hand, can automatically or semi-automatically complete the laying of straw grids, improving operational efficiency.

[0003] However, the existing mechanized paving devices can only perform one-way paving, and often require multiple alternating pavings when laying grass grids, which is inefficient. In addition, for different desert terrains, the size of the grass grids and the density of the grass need to be appropriately adjusted. The existing mechanized paving devices cannot perform adaptive adjustments, and thus cannot better meet the needs of desert management.

[0004] Therefore, it is necessary to provide a wheat straw adaptive paving device for sand control to solve the problems raised in the above background technology. Summary of the Invention

[0005] Material toggling mechanism, its both ends are fixedly provided with a backing pin, and the backing pin is installed in a up-down knob.

[0006] Preferably, the first material paving mechanism includes a first shell, a material paving plate and a lower pressure wheel, wherein the first shell is provided with a first feed trough, a ring-shaped material guide plate is fixedly provided at the bottom of the first feed trough, the ring-shaped material guide plate forms a material guide trough, a material guide mechanism is rotatably provided in the material guide trough, and a material delivery port is provided on the material guide trough, a material paving plate is fixedly provided at an angle at the material delivery port, the lower pressure wheel is driven by a hydraulic cylinder to slide on the first shell, and a sand covering plate is also fixedly provided on one side of the first shell.

[0007] Preferably, a drive disk is rotatably provided in the fixed seat, a plurality of arc grooves are circumferentially provided on the drive disk, a guide block is fixedly provided on the slide rod, the guide block is slidably provided along the arc groove, and a clamping plate is fixedly provided on the drive disk.

[0008] Preferably, the second material laying mechanism includes a second shell, an adjustment seat, and a chain guide mechanism, wherein the second shell is provided with a second feed trough, and a second annular material guide plate is fixedly provided at the bottom of the second feed trough, and the second annular material guide plate forms a second material guide trough, and a material guide mechanism is rotatably provided in the second material guide trough, and a discharge port is provided at the bottom of the second material guide trough, and two chain guide mechanisms are symmetrically provided below the discharge port, an adjustment seat is slidingly provided on one side of the second shell, a support column is fixedly provided on the second shell, and support plate one is fixedly provided on both sides of the support column, and two support plates two are fixedly provided on the adjustment seat, and the support plate one is slidably connected to the support plate two.

[0009] Preferably, a lower pressure plate 1 is provided at the bottom of the support column which is driven to slide by hydraulic cylinder 2, a support plate is fixedly provided between the two support plates 2, a slider is provided on the support plate for sliding, a lower pressure plate 2 is fixed on the slider, and the lower pressure plate 2 is slidably connected to the lower pressure plate 1.

[0010] Preferably, the chain guide mechanism includes a support shaft, a sprocket and a chain, wherein there are multiple support shafts, and the multiple support shafts are rotatably set on the second shell and the adjustment seat respectively, two sprockets are fixedly set on the support shaft, multiple sprockets are set on the chains, and multiple hooks are fixedly set on the chain.

[0011] Preferably, a tensioning groove 1 is provided on one side of the support plate 1 and the top of the second shell, a tensioning block 1 is slidably provided in the tensioning groove 1, and the tensioning block 1 is rotatably connected to the support shaft, and a tensioning groove 2 is provided on one side of the top of the adjustment seat, a tensioning block 2 is slidably provided in the tensioning groove 2, and the tensioning block 2 is rotatably connected to the support shaft.

[0012] Preferably, an arc-shaped sealing groove is provided on the fixed seat, the clamping plate slides along the arc-shaped sealing groove in a sealing manner, and the clamping plate and the arc-shaped sealing groove form a first hydraulic chamber, two ring plates are fixedly provided on the fixed seat, and sealing rings are provided on the two ring plates for sealing rotation, and a second annular hydraulic chamber is formed between the two ring plates, the sealing rings and the fixed seat, and the second hydraulic chamber is connected to an external hydraulic drive mechanism and a connecting hole is provided between the second hydraulic chamber and the first hydraulic chamber.

[0013] Compared with the prior art, the present invention provides a wheat straw adaptive laying device for sand control, which has the following beneficial effects: In the present invention, the first paving mechanism and the second paving mechanism can realize the simultaneous longitudinal and transverse laying of wheat straw, thereby effectively improving the laying efficiency, and the laid wheat straw is laid in an L-shape. During the laying process, the feeding density of the material guide mechanism can be adjusted according to the desert terrain, thereby changing the laying density of the wheat straw, and driving the adjustment seat to slide along the second shell to change the length of the transversely laid wheat straw, and at the same time adjust the pressing frequency of the lower pressing plate one and the lower pressing plate two to change the laying specifications of the wheat straw, that is, change the laying specifications of the straw grid, thereby realizing adaptive adjustment of the wheat straw laying device, thereby better meeting the needs of desert management. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the structure of the first material laying mechanism in the present invention; Figure 3 Schematic diagram of the structure of the second material laying mechanism in the present invention; Figure 4 Schematic diagram of the structure of the second housing in the present invention; Figure 5 It is a structural schematic diagram of the adjustment seat in the present invention; Figure 6 Schematic diagram of the structure of the material guiding mechanism of the present invention; Figure 7 for Figure 6 A magnified schematic diagram of the structure of part A in the middle; In the figure: 1. Moving seat; 2. First material spreading mechanism; 21. First housing; 211. First feeding chute; 212. Annular material guide plate 1; 22. Material spreading plate; 23. Lower pressing wheel; 24. Sand covering plate; 3. Second material spreading mechanism; 31. Second housing; 311. Second material feeding chute; 312. Annular material guide plate 2; 313. Support column; 314. Support plate 1; 315. Tensioning groove 1; 316. Tensioning block 1; 32. Adjusting seat; 321. Support plate 2; 322. Lower pressing plate 2; 323. Tensioning groove 2; 324. Tensioning block 2; 33. Chain guide mechanism; 331. Support shaft; 332. Sprocket; 333. Chain; 334. Hook; 34. Lower pressure plate 1; 4. Material guide mechanism; 41. Rotating shaft; 42. Fixed seat; 421. Support rod 1; 422. Support rod 2; 423. Arc-shaped sealing groove; 424. Ring plate; 425. Sealing ring; 43. Adjusting rod; 431. Connecting rod 1; 432. Connecting rod 2; 44. Support rod; 45. Sliding rod; 46. Drive disc; 461. Arc-shaped groove; 462. Cardan. DETAILED DESCRIPTION

[0015] See also Figures 1 to 7 In an embodiment of the present invention, a wheat straw adaptive paving device for sand control includes a movable seat 1, a first paving mechanism 2, a second paving mechanism 3, and a material guide mechanism 4, wherein the first paving mechanism 2 and the second paving mechanism 3 are both fixedly arranged on the movable seat 1, and the first paving mechanism 2 and the second paving mechanism 3 are both rotatably provided with a material guide mechanism 4, and the material guide mechanism 4 includes a rotating shaft 41, a fixed seat 42, and an adjusting rod 43, wherein fixed seats 42 are fixedly provided at both ends of the rotating shaft 41, and a plurality of support members are fixedly provided on the fixed seat 42 in a circumferential manner. A support rod 44 is provided with a sliding rod 45 for sliding in the support rod 44, and an adjusting rod 43 is fixedly provided between the two sliding rods 45 arranged opposite to each other, a plurality of support rods 1 421 are fixedly provided in a circle between the two fixing seats 42, a plurality of support rods 2 422 are fixedly provided on the support rod 1 421, the support rod 2 422 is slidingly connected with the adjusting rod 43 and penetrates the adjusting rod 43, a plurality of connecting rods 1 431 and connecting rods 2 432 are symmetrically fixed on the adjusting rod 43, and the connecting rod 1 431 and the connecting rod 2 432 on two adjacent adjusting rods 43 are slidingly connected.

[0016] In addition, the movable seat 1 is a movable base plate with power and steering capabilities, and the movable seat 1 can also be directly fixedly connected to a tractor, a power vehicle, etc. The rotation of the material guide mechanism 4 is driven by an external drive motor; the first material paving mechanism 2 includes a first shell 21, a material paving plate 22 and a lower pressure wheel 23, wherein a first feed trough 211 is provided on the first shell 21, and a ring-shaped material guide plate 212 is fixedly provided at the bottom of the first feed trough 211, and the ring-shaped material guide plate 212 forms a material guide trough 1, and the material guide mechanism 4 is rotatably provided in the material guide trough 1, and a material delivery port is provided on the material guide trough 1, and a material paving plate 22 is fixedly provided at the material delivery port, and the lower pressure wheel 23 is driven by a hydraulic cylinder 1 to slide on the first shell 21, and a sand covering is also fixedly provided on one side of the first shell 21 Plate 24; the second material laying mechanism 3 includes a second shell 31, an adjustment seat 32, and a chain guide mechanism 33, wherein a second material feeding trough 311 is provided on the second shell 31, and a ring-shaped material guide plate 2 312 is fixedly provided at the bottom of the second material feeding trough 311, and the ring-shaped material guide plate 2 312 forms a material guide trough 2, and a material guide mechanism 4 is rotatably provided in the material guide trough 2, and a discharge port is provided at the bottom of the material guide trough 2, and two chain guide mechanisms 33 are symmetrically provided below the discharge port, an adjustment seat 32 is slidingly provided on one side of the second shell 31, a support column 313 is fixedly provided on the second shell 31, and support plates 1 314 are fixedly provided on both sides of the support column 313, and two support plates 2 321 are fixedly provided on the adjustment seat 32, and the support plate 1 314 is slidably connected to the support plate 2 321.

[0017] It should be noted that the purpose of providing the support plate 1 314 on the second housing 31 and the support plate 2 321 on the adjustment seat 32 is to connect the adjustment seat 32 and the second housing 31 by sliding through the support plate 1 314 and the support plate 2 321. Figure 5 As shown, the support plate 2 321 is connected to the two side walls of the adjustment seat 32 through two connecting rods, and the support plate 2 321 does not contact the end wall inside the adjustment seat 32, so that there is an annular gap between the chain guide mechanism 33 and the adjustment seat 32, and the conveying direction of the chain guide mechanism 33 when laying straw is just from the side close to the adjustment seat 32, so the provision of this annular gap can effectively enable the chain guide mechanism 33 to effectively lay the straw to the second shell 31 and the bottom of the adjustment seat 32. Similarly, after laying, there is no more straw on the chain guide mechanism 33, so there is no need for an annular gap between the support plate 1 314 and the second shell 31, and the support plate 1 314 can be directly fixed to the second shell 31, so that it has load-bearing capacity, thereby ensuring that the sliding of the support plate 2 321 along the support plate 1 314 and the sliding of the adjustment seat 32 along the second shell 31 are more stable.

[0018] In addition, the second shell 31 is located in the middle position of the first shell 21, that is, the straw laid by the second paving mechanism 3 and the straw laid by the first paving mechanism 2 are arranged in an L shape, and during the paving process, the second paving mechanism 3 lays the straw after the first paving mechanism 2 has finished laying the straw, and its laying method is intermittent paving. In addition, the power for the adjustment seat 32 to slide along the second shell 31 comes from an external driving mechanism, such as a hydraulic driving mechanism, a screw and nut mechanism, and a worm gear; the bottom of the support column 313 is driven to slide by hydraulic cylinder 2 and is provided with a lower pressure plate 1 34, and a support plate is fixedly provided between the two support plates 2 321, and a slider is slidably provided on the support plate, and a lower pressure plate 2 322 is fixedly provided on the slider, and the lower pressure plate 2 322 is slidably connected to the lower pressure plate 1 34.

[0019] During implementation, the first paving mechanism 2 is used to lay the wheat straw longitudinally. After the wheat straw enters the guide trough 1 from the first feed trough 211, the guide mechanism 4 is used to rotate to transport the wheat straw to the paving plate 22. Then the wheat straw slides from the paving plate 22 and is spread on the desert. Then the lower pressure wheel 23 is used to press the wheat straw into the ground, and the sand covering plate 24 is used to further gather the sand. At the same time, the wheat straw in the second feed trough 311 enters the guide trough 2, and the guide mechanism 4 is used to transport the wheat straw to the guide chain mechanism 33. The rotation of the guide chain mechanism 33 is used to further transport the wheat straw to the second shell 31 and the bottom of the adjustment seat 32 and spread it flat. Then the hydraulic cylinder 2 is used to drive the lower pressure plate 1 34 to press down and It drives the second lower pressure plate 322 to press the straw into the ground, thereby completing the longitudinal and transverse bidirectional laying of the straw. During the laying, the distance between the connecting rod 1 431 and the connecting rod 2 432 and the top of the support rod 44 can be changed by driving the sliding rod 45 to slide along the support rod 44, thereby changing the feed amount of the material guide mechanism 4, that is, changing the laying density of the straw. At the same time, according to the needs of the desert terrain, the adjustment seat 32 is adjusted to slide, so that the length of the laterally laid straw changes, and the downward pressing frequency of the lower pressure plate 1 34 and the lower pressure plate 2 322 is adjusted, thereby realizing the laying of straw grids of various specifications, that is, realizing the adaptive adjustment of the laying of straw, thereby better meeting the needs of desert management.

[0020] In this embodiment, Figure 2 and Figure 3The chain guide mechanism 33 includes a support shaft 331, a sprocket 332 and a chain 333, wherein the support shaft 331 is provided with multiple, and the multiple support shafts 331 are rotatably arranged on the second shell 31 and the adjustment seat 32 respectively, and two sprockets 332 are fixedly provided on the support shaft 331, and multiple sprockets 332 are provided on the multiple sprockets 332, and multiple hooks 334 are fixedly provided on the chain 333. In addition, the support shaft 331 is driven by an external driving motor; a tensioning groove 1 315 is opened on the support plate 1 and the top side of the second shell 31, and a tensioning block 1 316 is slidably set in the tensioning groove 1 315, and the tensioning block 1 316 is rotatably connected to the support shaft 331, and a tensioning groove 2 323 is opened on the top side of the adjustment seat 32, and a tensioning block 2 324 is slidably set in the tensioning groove 2 323, and the tensioning block 2 324 is rotatably connected to the support shaft 331.

[0021] See also Figure 2 and Figure 3 The support shafts 331 are provided with multiple ones, which are respectively distributed at the four corners of the second shell 31 and the adjustment seat 32. The second shell 31 is located below the feed port and has two support shafts 331. The support shafts 331 at the top corners of the second shell 31 and the adjustment seat 32 are slidably set through the tensioning block 1 316 and the tensioning block 2 324. Therefore, when the adjustment seat 32 slides to adjust the laying length of the wheat straw, the chain 333 located at the bottom of the second shell 31 and the adjustment seat 32 will be stretched and always maintain a state parallel to the bottom of the second shell 31. In the process of stretching, the chain 333 can be effectively tightened by the action of the tensioning block 1 316 and the tensioning block 2 324, ensuring that the chain 333 can be effectively laid Straw, and two support shafts 331 are set below the feed port in the second shell 31, so that when the chain 333 is pulled, the chain 333 located below the feed port always has a receiving surface, thereby ensuring that the straw can be smoothly transported to the chain 333. In addition, there are multiple sliding drive modes for the tensioning block 1 316 and the tensioning block 2 324 along the tensioning groove 1 315 and the tensioning groove 2 323. A sealed cavity can be opened in the tensioning groove 1 315 and the tensioning groove 2 323, and a sealing rod is fixed on the tensioning block 1 316 and the tensioning block 2 324 to seal and slide with the sealing rod in a sealed manner, and the sealing rod is driven to slide by introducing liquid pressure into the sealing cavity.

[0022] In this embodiment, Figure 6 and Figure 7 A driving disk 46 is rotatably provided in the fixed seat 42, and a plurality of arc-shaped grooves 461 are circumferentially opened on the driving disk 46. A guide block is fixedly provided on the sliding rod 45, and the guide block is slidably provided along the arc-shaped groove 461. A clamping plate 462 is fixedly provided on the driving disk 46.

[0023] An arc-shaped sealing groove 423 is provided on the fixed seat 42, and the clamping plate 462 slides along the arc-shaped sealing groove 423 in a sealed manner, and the clamping plate 462 and the arc-shaped sealing groove 423 form a first hydraulic chamber. Two ring plates 424 are fixedly provided on the fixed seat 42, and sealing rings 425 are provided on the two ring plates 424 for sealing rotation. A second annular hydraulic chamber is formed between the two ring plates 424, the sealing ring 425 and the fixed seat 42, and the second hydraulic chamber is connected to an external hydraulic drive mechanism and a connecting hole is provided between the second hydraulic chamber and the first hydraulic chamber.

[0024] In particular, a first hydraulic chamber consisting of the clamping plate 462 and the arc-shaped sealing groove 423 is provided, and a second hydraulic chamber consisting of a sealing ring 425, a ring plate 424 and a fixing seat 42 is provided, and a connecting hole is provided to connect the two, so that when the material guiding mechanism 4 rotates, the sealing ring 425 can rotate along the ring plate 424 in a sealed manner. During this process, the space inside the second hydraulic chamber can remain unchanged, and then the hydraulic pressure in the first hydraulic chamber can be changed by introducing liquid pressure into the second hydraulic chamber, thereby driving the clamping plate 462 to slide along the arc-shaped sealing groove 423, that is, driving the driving disk 46 to rotate, and then driving the sliding rod 45 to slide along the support rod 44, thereby changing the feeding density of the material guiding mechanism 4, that is, the laying density of wheat straw can be effectively changed during the rotation of the material guiding mechanism 4, thereby realizing adaptive adjustment of the laying density of wheat straw.

[0025] To sum up, when the present invention is implemented, the first paving mechanism 2 and the second paving mechanism 3 can realize the simultaneous longitudinal and transverse laying of wheat straw, thereby effectively improving the laying efficiency, and the laid wheat straw is laid in an L-shape. During the laying process, the feeding density of the material guide mechanism 4 can be adjusted according to the desert terrain, thereby changing the laying density of the wheat straw, and driving the adjustment seat 32 to slide along the second shell 31 to change the length of the transversely laid wheat straw, and at the same time adjust the pressing frequency of the lower pressure plate 1 34 and the lower pressure plate 2 322 to change the laying specifications of the wheat straw, that is, change the laying specifications of the straw grid, thereby realizing adaptive adjustment of the wheat straw laying device, thereby better meeting the needs of desert control.

[0026] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A wheat straw adaptive laying device for sand control, comprising a movable seat (1), characterized in that: The invention also includes a first material spreading mechanism (2), a second material spreading mechanism (3) and a material guiding mechanism (4), wherein the first material spreading mechanism (2) and the second material spreading mechanism (3) are both fixedly arranged on the movable seat (1), and the first material spreading mechanism (2) and the second material spreading mechanism (3) are both rotatably provided with a material guiding mechanism (4), and the material guiding mechanism (4) includes a rotating shaft (41), a fixed seat (42) and an adjusting rod (43), wherein fixed seats (42) are fixedly provided at both ends of the rotating shaft (41), and a plurality of support rods (44) are fixedly provided on the fixed seat (42) in a circumferential manner, and the support rods (44) are slidably provided with a plurality of support rods (44). A sliding rod (45) is provided, and an adjusting rod (43) is fixedly provided between two sliding rods (45) arranged opposite to each other, a plurality of support rods (421) are fixedly provided in a circle between the two fixing seats (42), a plurality of support rods (422) are fixedly provided on the support rod (421), the support rods (422) are slidably connected to the adjusting rod (43) and penetrate the adjusting rod (43), a plurality of connecting rods (431) and connecting rods (432) are symmetrically fixedly provided on the adjusting rod (43), and the connecting rods (431) and connecting rods (432) on two adjacent adjusting rods (43) are slidably connected.

2. The wheat straw adaptive laying device for sand control according to claim 1, characterized in that: The first material spreading mechanism (2) comprises a first shell (21), a material spreading plate (22) and a lower pressing wheel (23), wherein a first material feeding trough (211) is provided on the first shell (21), an annular material guiding plate (212) is fixedly provided at the bottom of the first material feeding trough (211), the annular material guiding plate (212) forms a material guiding trough (1), a material guiding mechanism (4) is rotatably provided in the material guiding trough (1), and a material delivery port is provided on the material guiding trough (1), a material spreading plate (22) is fixedly provided at the material delivery port, the lower pressing wheel (23) is driven by a hydraulic cylinder (1) to slide on the first shell (21), and a sand covering plate (24) is fixedly provided on one side of the first shell (21).

3. The wheat straw adaptive laying device for sand control according to claim 1, characterized in that: A driving disk (46) is rotatably provided in the fixing seat (42), and a plurality of arc-shaped grooves (461) are circumferentially provided on the driving disk (46). A guide block is fixedly provided on the sliding rod (45), and the guide block is slidably provided along the arc-shaped groove (461). A clamping plate (462) is fixedly provided on the driving disk (46).

4. The wheat straw adaptive laying device for sand control according to claim 1, characterized in that: The second material spreading mechanism (3) includes a second shell (31), an adjustment seat (32), and a chain guide mechanism (33), wherein a second material feeding trough (311) is provided on the second shell (31), a ring-shaped material guide plate 2 (312) is fixedly provided at the bottom of the second material feeding trough (311), the ring-shaped material guide plate 2 (312) forms a material guide trough 2, a material guide mechanism (4) is rotatably provided in the material guide trough 2, a material discharge port is provided at the bottom of the material guide trough 2, and two chain guide mechanisms (33) are symmetrically provided below the material discharge port, an adjustment seat (32) is slidably provided on one side of the second shell (31), a support column (313) is fixedly provided on the second shell (31), support plates 1 (314) are fixedly provided on both sides of the support column (313), two support plates 2 (321) are fixedly provided on the adjustment seat (32), and the support plate 1 (314) is slidably connected to the support plate 2 (321).

5. The wheat straw adaptive laying device for sand control according to claim 4, characterized in that: The bottom of the support column (313) is driven by hydraulic cylinder 2 to slide and is provided with a lower pressure plate 1 (34), a support plate is fixedly provided between the two support plates 2 (321), a slider is slidably provided on the support plate, and a lower pressure plate 2 (322) is fixedly provided on the slider, and the lower pressure plate 2 (322) is slidably connected to the lower pressure plate 1 (34).

6. The wheat straw adaptive laying device for sand control according to claim 5, characterized in that: The chain guide mechanism (33) includes a support shaft (331), a sprocket (332) and a chain (333), wherein a plurality of the support shafts (331) are provided, and the plurality of support shafts (331) are rotatably provided on the second housing (31) and the adjustment seat (32), two sprockets (332) are fixedly provided on the support shaft (331), the plurality of sprockets (332) are provided with chains (333), and the chain (333) is fixedly provided with a plurality of hooks (334).

7. The wheat straw adaptive laying device for sand control according to claim 6, characterized in that: A tensioning groove (315) is provided on one side of the top of the support plate (314) and the second shell (31), a tensioning block (316) is slidably provided in the tensioning groove (315), and the tensioning block (316) is rotatably connected to the support shaft (331). A tensioning groove (323) is provided on one side of the top of the adjustment seat (32), a tensioning block (324) is slidably provided in the tensioning groove (323), and the tensioning block (324) is rotatably connected to the support shaft (331).

8. The wheat straw adaptive laying device for sand control according to claim 3, characterized in that: An arc-shaped sealing groove (423) is provided on the fixing seat (42), the clamping plate (462) slides along the arc-shaped sealing groove (423) in a sealing manner, and the clamping plate (462) and the arc-shaped sealing groove (423) form a first hydraulic chamber, two ring plates (424) are fixedly provided on the fixing seat (42), and sealing rings (425) are provided on the two ring plates (424) for sealing and rotation, and a second annular hydraulic chamber is formed between the two ring plates (424), the sealing ring (425) and the fixing seat (42), and the second hydraulic chamber is connected to an external hydraulic drive mechanism and a connecting hole is provided between the second hydraulic chamber and the first hydraulic chamber.

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