A salt-draining rotary tillage device for saline-alkali soil improvement

Abstract

The application is suitable for the technical field of soil improvement, and provides a salt discharging rotary tillage equipment for saline-alkali soil improvement, which comprises a rotary tillage support, a mounting seat, a soil crushing harrow, a harrow head, a storage box and a hydraulic motor, the mounting seat is installed on the rotary tillage support, the soil crushing harrow is installed in the middle part of the mounting seat, the harrow head is installed at the bottom of the soil crushing harrow, the storage box is installed on the side wall of the soil crushing harrow, the hydraulic motor is installed on the side wall of the storage box, and the equipment further comprises a digging assembly installed in the interior of the storage box and used for digging the soil in the shallow layer of the saline-alkali soil, and a clearing assembly arranged in the interior of the storage box and used for pushing the gravel in the groove of the saline-alkali soil to the two sides; the application has the beneficial effects that the ground on the two sides of the groove is compacted in the turning process through the partition plate, so that the soil layers on the two sides of the groove are more compacted and not easy to collapse, the time for the groove to be left after excavation can be effectively prolonged, and the frequency of the operation personnel to carry out the digging operation is reduced.

Description

Technical Field

[0001] This invention belongs to the field of soil improvement technology, and in particular relates to a salt-removing rotary tillage device for improving saline-alkali soil. Background Technology

[0002] Saline-alkali land is a type of low-quality land resource widely distributed in my country. Excessive salt content and alkalinity in the soil severely inhibit crop root growth and development, hindering regional agricultural production and ecological environment improvement. Restoring saline-alkali land through scientific methods of salt drainage, alkalinity reduction, and soil improvement is a crucial measure to revitalize idle land, improve arable land quality, and ensure food security.

[0003] Conventional rotary tillage equipment only has simple soil turning and harrowing functions. The soil in the excavated trenches is loose and the sidewalls are prone to collapse. The trenches have a short retention time and require repeated excavation operations. This results in high labor intensity, low work efficiency, and difficulty in continuously and stably playing a role in salt infiltration and drainage. The soil surface has many clumps and hard clods, and gravel and miscellaneous soil in the field easily accumulate in the trenches, blocking the infiltration channels. Large soil clumps cannot be broken down and refined, which will hinder water infiltration and salt replacement. After long-term use, it will seriously affect the sustainability of salt drainage and improvement operations.

[0004] The water injection improvement process often uses surface irrigation, where water only stays on the surface and cannot penetrate into the underground soil layer. The surface salt leaching effect is limited, and the salt in the deep soil cannot be effectively diluted. As a result, the improvement cycle of saline-alkali land is long and the treatment is not thorough. Summary of the Invention

[0005] The purpose of this invention is to provide a salt-removing rotary tillage device for improving saline-alkali soil, aiming to solve the technical problems existing in the prior art mentioned in the background.

[0006] This invention is implemented as follows: a rotary tillage device for improving saline-alkali soil includes a rotary tillage frame, a mounting base, a soil-crushing rake, a rake head, a storage box, and a hydraulic motor. The mounting base is mounted on the rotary tillage frame, the soil-crushing rake is mounted in the middle of the mounting base, the rake head is mounted at the bottom of the soil-crushing rake, the storage box is mounted on the side wall of the soil-crushing rake, and the hydraulic motor is mounted on the side wall of the storage box. The device also includes: The excavation unit, installed inside the storage bin, is used to excavate shallow soil layers in saline-alkali land; The clearing component, located inside the storage bin, is used to push the gravel in the saline-alkali land trench to both sides; The grinding assembly, located inside the storage bin, is used to break up the shallow soil layer of saline-alkali land. The water injection component, located inside the storage tank, is used to inject water into the soil layer by compression. A compaction assembly, installed inside a storage bin, is used to compact the soil layers on both sides of a trench. The compaction assembly includes a cylinder installed inside the storage bin. A bottom pressure plate is installed on the end of the cylinder. Side pressure plates are symmetrically slidably connected to both sides of the bottom pressure plate. A first limiting rod is fixedly connected to the side wall of the side pressure plate. A partition is rotatably connected to the top of the side pressure plate. A limiting gear is fixedly connected to the side wall of the partition. A first sliding groove on the inner side wall of the storage bin slides in engagement with the first limiting rod. A second sliding groove on the inner side wall of the storage bin slides in engagement with the limiting gear.

[0007] As a preferred technical solution of the present invention: when the cylinder retracts, the rake head and the bottom pressure plate are at the same horizontal height, the axis of the limiting tooth shaft is collinear with the rotation axis of the partition and the side pressure plate, and the limiting tooth shaft meshes with the inner wall of the second slide groove.

[0008] As another preferred technical solution of the present invention: the excavation assembly includes a rotating drum driven by a hydraulic motor and rotatably connected inside the storage box. Digging plates are uniformly slidably connected to the rotating drum. Orientation columns are fixedly connected to the side walls of the digging plates. Side cover plates are installed on the side walls of the storage box. Guide grooves are opened on the inner walls of the side cover plates. The orientation columns are slidably engaged with the guide grooves. The side cover plates and the rotating drum are collinear.

[0009] As another preferred technical solution of the present invention: the road clearing assembly includes a positioning cylinder fixedly connected to the bottom of the soil pulverizer, a sliding rod symmetrically slidably connected inside the positioning cylinder, a corner plate fixedly connected to one end of the sliding rod located outside the positioning cylinder, a first spring fixedly connected between the corner plate and the positioning cylinder, a slide frame slidably connected to the positioning cylinder, a buffer fixedly connected to the slide frame, the end of the buffer abutting against the outer wall of the soil pulverizer, a protruding plate fixedly connected to the outer wall of the rotating cylinder, the protruding plate abutting against the end of the slide frame.

[0010] As another preferred technical solution of the present invention: the slide frame has a chamfer on one side inside the positioning cylinder, the slide rod is inclined on the side near the slide frame, and the angle plate is bent towards the soil rake on the side near the rotary tillage support.

[0011] As another preferred technical solution of the present invention: the grinding assembly includes a grinding chamber fixedly connected inside the storage box, a grinding plate slidably connected to the grinding chamber, a reciprocating screw rotatably connected inside the storage box, a gear fixedly connected to one end of the reciprocating screw located outside the storage box, a first gear plate fixedly connected to one end of the rotating drum located outside the storage box, a transmission belt drivingly connecting the gear and the first gear plate, and the top of the grinding plate slidingly engaging with the reciprocating screw.

[0012] As another preferred technical solution of the present invention: the inner wall of the grinding chamber and the adjacent surfaces of the grinding plate are provided with grinding grooves.

[0013] As another preferred technical solution of the present invention: a flow guide plate is installed at the top of the inner cavity of the storage box, a filter plate is installed inside the storage box and on the opposite side of the flow guide plate, and a liquid storage tank is installed at the bottom of the filter plate.

[0014] As another preferred technical solution of the present invention: the water injection assembly includes a water pipe fixedly connected to the bottom of the liquid storage tank, a fixed seat fixedly connected inside the water pipe, a first toothed shaft rotatably connected inside the fixed seat, a sleeve slidably connected inside the water pipe, an annular groove formed on the outer wall of the sleeve, a liquid outlet hole formed at the bottom of the sleeve, a first toothed plate fixedly connected inside the sleeve, a plug slidably connected to the top of the inner cavity of the water pipe, a second toothed plate fixedly connected to the bottom of the plug, the second toothed plate and the first toothed plate meshing opposite each other on both sides of the first toothed shaft, toothed blocks slidably connected to the second toothed plate, a second toothed disc rotatably connected to the surface of the grinding plate, a round rod fixedly connected to the side of the second toothed disc near the sleeve, the round rod slidingly engaging with the annular groove, and a transverse toothed plate fixedly connected inside the storage tank meshing with the second toothed disc.

[0015] The beneficial effects of the embodiments of the present invention are as follows: The partitions compact the ground surface on both sides of the trench during the flipping process, making the soil layers on both sides of the trench more compact and less prone to collapse. This can effectively increase the time the trench remains after excavation and reduce the frequency of excavation work by operators.

[0016] The gravel remaining inside the trench can be pressed into the soil layer on the sidewall of the trench by the squeezing action of the angle plate, thus ensuring that the inside of the trench is not blocked by soil and gravel. The bending area of ​​the angle plate allows obstructions in the trench to be pushed to the outer wall of the angle plate when it moves in the trench, thus facilitating the angle plate to squeeze soil and gravel towards the sidewall of the trench.

[0017] The internal space of the water pipe is compressed due to the proximity of the plug and the sleeve. The high pressure inside the water pipe causes the water source inside the sleeve to be injected and seep into the soil layer below the surface through the liquid outlet, thereby injecting water into the soil layer below the surface of the saline-alkali land, diluting the salt in the saline-alkali land and carrying out the salt in the soil. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure provided in an embodiment of the present invention; Figure 2 This is a partial schematic diagram of the soil-breaking rake structure provided in an embodiment of the present invention; Figure 3 This is a partial schematic diagram of the storage bin structure provided in an embodiment of the present invention; Figure 4This is a schematic diagram of the internal structure of the storage bin provided in an embodiment of the present invention; Figure 5 This is an exploded view of the excavation assembly structure provided in an embodiment of the present invention; Figure 6 This is an exploded view of the cleaning component structure provided in an embodiment of the present invention; Figure 7 Provided for embodiments of the present invention Figure 6 Enlarged schematic diagram of the structure at point A in the middle; Figure 8 This is a front view schematic diagram of the grinding assembly structure provided in an embodiment of the present invention; Figure 9 This is an exploded view of the grinding assembly structure provided in an embodiment of the present invention; Figure 10 This is a partial cross-sectional view of the water injection component structure provided in an embodiment of the present invention; Figure 11 This is an exploded view of the water injection component structure provided in an embodiment of the present invention; Figure 12 This is a partial exploded view of the second toothed plate structure provided in an embodiment of the present invention; Figure 13 This is an exploded view of the compaction component structure provided in an embodiment of the present invention; Figure 14 This is a schematic diagram illustrating the flipping effect of the compaction component provided in an embodiment of the present invention.

[0019] In the picture: 1. Rotary tillage frame; 2. Mounting base; 3. Soil-crushing rake; 4. Rake head; 5. Storage bin; 6. Hydraulic motor; 7. Turning assembly; 8. Clearing assembly; 9. Grinding assembly; 10. Water injection assembly; 11. Compaction assembly; 51. Drainage plate; 52. Filter plate; 53. Liquid storage tank; 71. Rotary drum; 72. Excavator plate; 73. Directional post; 74. Side cover plate; 75. Guide groove; 81. Positioning cylinder; 82. Slide rod; 83. Angle plate; 84. First spring; 85. Carriage; 86. Buffer; 87. Protruding plate; 91. Grinding chamber; 92. Grinding plate; 93. Reciprocating lead screw; 94. Gear; 95. First gear plate; 96. Transmission belt; 1001. Water pipe; 1002. Fixing base; 1003. First toothed shaft; 1004. Sleeve; 1005. Annular groove; 1006. Liquid outlet; 1007. First toothed plate; 1008. Plug; 1009. Second toothed plate; 1010. Toothed block; 1011. Second toothed disc; 1012. Round rod; 1013. Horizontal toothed plate; 1101. Cylinder; 1102. Bottom pressure plate; 1103. Side pressure plate; 1104. First limit rod; 1105. Partition plate; 1106. Limiting gear shaft; 1107. First slide groove; 1108. Second slide groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but unless otherwise stated, these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0022] like Figures 1 to 3 , Figure 13 and Figure 14 As shown, in one embodiment, a desalination rotary tillage device for saline-alkali land soil improvement is proposed, including a rotary tillage support 1, a mounting base 2, a soil-crushing rake 3, a rake head 4, a storage tank 5, and a hydraulic motor 6. The mounting base 2 is mounted on the rotary tillage support 1, the soil-crushing rake 3 is mounted in the middle of the mounting base 2, the rake head 4 is mounted at the bottom of the soil-crushing rake 3, the storage tank 5 is mounted on the side wall of the soil-crushing rake 3, and the hydraulic motor 6 is mounted on the side wall of the storage tank 5. The device also includes: The excavation component 7 is installed inside the storage box 5 and is used to excavate the shallow soil layer of saline-alkali land. The cleaning component 8 is located inside the storage box 5 and is used to push the gravel in the saline-alkali land trench to both sides. The grinding component 9 is located inside the storage box 5 and is used to break up the shallow soil of saline-alkali land. Water injection component 10 is installed inside storage tank 5 and is used to inject water into the soil layer by squeezing. The compaction assembly 11 is installed inside the storage bin 5 and is used to compact the soil layers on both sides of the trench. The compaction assembly 11 includes a cylinder 1101, which is installed inside the storage bin 5. A bottom pressure plate 1102 is installed on the end side of the cylinder 1101. Side pressure plates 1103 are symmetrically slidably connected to both sides of the bottom pressure plate 1102. A first limiting rod 1104 is fixedly connected to the side wall of the side pressure plate 1103. A partition 1105 is rotatably connected to the top of the side pressure plate 1103. A limiting gear shaft 1106 is fixedly connected to the side wall of the partition 1105. A first sliding groove 1107 opened on the inner side wall of the storage bin 5 is slidably engaged with the first limiting rod 1104. A second sliding groove 1108 opened on the inner side wall of the storage bin 5 is slidably engaged with the limiting gear shaft 1106.

[0023] In practical application, the rotary tillage support 1 drags the soil-breaking rake 3 across the saline-alkali land. The rake head 4 at the bottom of the soil-breaking rake 3 is buried in the soil layer of the saline-alkali land. As the soil-breaking rake 3 moves, it excavates trenches in the saline-alkali land, so that water can seep into the soil layers on both sides through the trenches, thereby diluting and replacing the salt in the soil layer.

[0024] During the excavation of saline-alkali land by the rake head 4, the storage box 5 moves together with the soil-breaking rake 3. The cylinder 1101 inside the storage box 5 opens and slides, causing the bottom pressure plate 1102 to compact the broken soil in the trench. When the bottom pressure plate 1102 moves downward inside the storage box 5, it also causes the side pressure plate 1103 to move downward. At this time, because the first limiting rod 1104 on the side of the side pressure plate 1103 is limited by the first sliding groove 1107, the side pressure plate 1103 moves towards the outside of the storage box 5 as it moves downward, thus compacting the broken soil on the inner wall of the trench and preventing the inner wall of the trench from... After the broken soil collapses, it is backfilled into the trench. When the side pressure plate 1103 moves down, it will drive the partition plate 1105 to move together. Due to the influence of the meshing of the limiting gear shaft 1106 when it moves inside the second slide 1108, the partition plate 1105 will flip at the top of the side pressure plate 1103 when the side pressure plate 1103 moves down. When the side pressure plate 1103 moves down to the bottom, the partition plate 1105 will be perpendicular to the side pressure plate 1103. During the flipping process, the partition plate 1105 will compact the ground surface on both sides of the trench, making the soil layers on both sides of the trench more compact and less prone to collapse. This can effectively increase the retention time of the trench after excavation and reduce the frequency of excavation operations by the operators.

[0025] like Figure 13 and Figure 14 As shown, in a preferred embodiment of the present invention, when the cylinder 1101 retracts, the rake head 4 is at the same horizontal height as the bottom pressure plate 1102, the axis of the limiting gear shaft 1106 is collinear with the rotation axis of the partition plate 1105 and the side pressure plate 1103, and the limiting gear shaft 1106 meshes with the inner wall of the second slide groove 1108.

[0026] like Figures 3 to 5 As shown, in another preferred embodiment of the present invention, the overturning assembly 7 includes a rotating drum 71 driven by a hydraulic motor 6 and rotatably connected inside the storage box 5. Digging plates 72 are uniformly slidably connected on the rotating drum 71. Orienting columns 73 are fixedly connected to the side walls of the digging plates 72. Side cover plates 74 are installed on the side walls of the storage box 5. Guide grooves 75 are opened on the inner wall of the side cover plates 74. The directional columns 73 are slidably engaged with the guide grooves 75. The side cover plates 74 and the rotating drum 71 are coaxial.

[0027] In practical application, the hydraulic motor 6 drives the rotating drum 71 to rotate inside the storage box 5. When the storage box 5 rotates, it drives multiple digging plates 72 on the surface to rotate together. During the rotation, the digging plates 72 dig the soil layer on the ground. When the rotating drum 71 rotates, the directional posts 73 of the digging plates 72 slide together inside the guide groove 75 of the side cover plate 74. The length of the digging plate 72 extending out of the rotating drum 71 is controlled by the sliding cooperation of the guide groove 75 and the directional post 73, so that when a single digging plate 72 is located on the side close to the soil layer, it is fully extended. When it is rotated 180 degrees, it will retract into the rotating drum 71 due to the sliding cooperation of the directional post 73 and the guide groove 75.

[0028] When the digging plate 72 retracts into the rotating drum 71, the soil layer adhering to the surface of the digging plate 72 will be blocked on the surface of the rotating drum 71 when the digging plate 72 retracts.

[0029] like Figure 4 , Figure 6 and Figure 7 As shown, in another preferred embodiment of the present invention, the cleaning assembly 8 includes a positioning cylinder 81 fixedly connected to the bottom of the soil-crushing rake 3. A sliding rod 82 is symmetrically slidably connected inside the positioning cylinder 81. Angle plates 83 are fixedly connected to one end of the sliding rod 82 located outside the positioning cylinder 81. A first spring 84 is fixedly connected between the angle plate 83 and the positioning cylinder 81. A slide frame 85 is slidably connected to the positioning cylinder 81. A buffer 86 is fixedly connected to the slide frame 85. The end of the buffer 86 abuts against the outer wall of the soil-crushing rake 3. A protruding plate 87 is fixedly connected to the outer wall of the rotating cylinder 71. The protruding plate 87 abuts against the end of the slide frame 85.

[0030] In practical application, the rotating drum 71 rotates, causing the convex plate 87 to rotate as well. The convex plate 87 pushes the slide 85 once per rotation. Through the compression and rebound of the buffer 86, the slide 85 can slide back and forth inside the positioning cylinder 81. When the slide 85 slides into the positioning cylinder 81, it squeezes the slide rod 82, causing the two slide rods 82 inside the positioning cylinder 81 to slide relatively far apart. The angle plate 83 moves together with the slide rod 82, thereby squeezing the side wall of the trench soil layer. At the same time, after the rake head 4 excavates, the gravel remaining in the trench can be pressed into the soil layer of the trench side wall under the squeezing action of the angle plate 83, thereby ensuring that the trench is not blocked by gravel and debris. The bending area of ​​the angle plate 83 allows obstructions in the trench to be pushed against the outer wall of the angle plate 83 when it moves in the trench, thus facilitating the angle plate 83 to squeeze the broken soil and gravel against the side wall of the trench.

[0031] like Figure 7As shown, in another preferred embodiment of the present invention, the slide 85 has a chamfer on one side inside the positioning cylinder 81, the slide rod 82 is inclined on the side near the slide 85, and the angle plate 83 is bent toward the soil rake 3 on the side near the rotary tillage support 1.

[0032] like Figure 4 , Figure 8 and Figure 9 As shown, in another preferred embodiment of the present invention, the grinding assembly 9 includes a grinding chamber 91 fixedly connected inside the storage box 5, a grinding plate 92 slidably connected to the grinding chamber 91, a reciprocating screw 93 rotatably connected inside the storage box 5, a gear 94 fixedly connected to one end of the reciprocating screw 93 located outside the storage box 5, a first gear 95 fixedly connected to one end of the rotating drum 71 located outside the storage box 5, a transmission belt 96 drivingly connecting the gear 94 and the first gear 95, and the top of the grinding plate 92 slidingly engaging with the reciprocating screw 93.

[0033] In practical application, when the rotating drum 71 rotates, the soil excavated by the digging plate 72 falls into the interior of the grinding chamber 91. Because the grinding chamber 91 is designed to be wider at the top and narrower at the bottom, larger pieces of soil will remain on the top of the grinding chamber 91. When the rotating drum 71 rotates, it drives the gear 94 to rotate together through the first gear plate 95 and the transmission belt 96. When the gear 94 rotates, the rotation of the reciprocating screw 93 causes the grinding plate 92 to slide back and forth on the grinding chamber 91. When the grinding plate 92 slides, it grinds the soil remaining inside the grinding chamber 91, thereby continuously reducing the volume of the soil. When the soil is ground to a diameter smaller than the bottom outlet of the grinding chamber 91, the soil will naturally backfill into the groove below the grinding chamber 91.

[0034] like Figure 9 As shown, in another preferred embodiment of the present invention, grinding grooves are provided on the inner wall of the grinding chamber 91 and the adjacent surfaces of the grinding plate 92.

[0035] like Figure 4 As shown, in another preferred embodiment of the present invention, a flow guide plate 51 is installed at the top of the inner cavity of the storage tank 5, a filter plate 52 is installed inside the storage tank 5 and on the opposite side of the flow guide plate 51, and a liquid storage tank 53 is installed at the bottom of the filter plate 52.

[0036] In practical application, the operator can pour the crushed straw and water into the storage bin 5. The water will flow into the liquid storage chamber 53 through the diversion plate 51 and the filter plate 52. The crushed straw will fall into the grinding chamber 91 under the guidance of the diversion plate 51 and the filter plate 52. The crushed straw will be mixed with the crushed soil and backfilled into the trench dug by the rake head 4, thereby realizing the decomposition of straw in the trench and reducing the alkalinity of the surrounding soil.

[0037] like Figures 10 to 12As shown, in another preferred embodiment of the present invention, the water injection assembly 10 includes a water pipe 1001 fixedly connected to the bottom of the liquid storage tank 53. A fixing seat 1002 is fixedly connected inside the water pipe 1001. A first gear shaft 1003 is rotatably connected inside the fixing seat 1002. A sleeve 1004 is slidably connected inside the water pipe 1001. An annular groove 1005 is formed on the outer wall of the sleeve 1004. A liquid outlet hole 1006 is formed at the bottom of the sleeve 1004. A first toothed plate 1007 is fixedly connected inside the sleeve 1004. The top of the inner cavity of the water pipe 1001 is slidably connected to... There is a plug 1008, and a second toothed plate 1009 is fixedly connected to the bottom of the plug 1008. The second toothed plate 1009 and the first toothed plate 1007 mesh with each other on both sides of the first toothed shaft 1003. A toothed block 1010 is slidably connected on the second toothed plate 1009. A second toothed disc 1011 is rotatably connected to the surface of the grinding plate 92. A round rod 1012 is fixedly connected to the side of the second toothed disc 1011 near the sleeve 1004. The round rod 1012 is slidably engaged with the annular groove 1005. A transverse toothed plate 1013 fixedly connected inside the storage box 5 meshes with the second toothed disc 1011.

[0038] In practical application, when the grinding plate 92 moves laterally inside the storage box 5, it will drive the second toothed disc 1011 and the round rod 1012 to move together. When the second toothed disc 1011 moves laterally, it will mesh with the transverse toothed plate 1013 inside the storage box 5, thereby causing the second toothed disc 1011 to rotate inside the storage box 5. When the second toothed disc 1011 rotates, it will slide up and down inside the water pipe 1001 through the sliding cooperation of the round rod 1012 and the annular groove 1005.

[0039] As the sleeve 1004 slides downward inside the water pipe 1001, the bottom of the sleeve 1004 gradually inserts below the soil layer. The first toothed plate 1007 engages with the first toothed shaft 1003, causing the first toothed shaft 1003 to rotate inside the water pipe 1001. The second toothed plate 1009, which engages with the first toothed shaft 1003, slides upward as the first toothed shaft 1003 rotates, thereby causing the top of the plug 1008 to slide out of the water pipe 1001. This allows the water stored inside the liquid storage tank 53 to enter the water pipe 1001 through the plug 1008 and remain in the sleeve 1004. When the sleeve 1004 slides upward inside the water pipe 1001, the sleeve 1004 and the plug 1008 slide relatively close inside the water pipe 1001. The inner space of the water pipe 1001 is compressed due to the proximity of the plug 1008 and the sleeve 1004. The high pressure inside the water pipe 1001 causes the water source inside the sleeve 1004 to be injected and seep into the soil layer below the surface through the liquid outlet 1006, thereby injecting water into the soil layer below the surface of the saline-alkali land, so that the water source dilutes the salt in the saline-alkali land and carries out the salt in the soil.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rotary tillage device for improving saline-alkali soil, comprising a rotary tillage frame (1), a mounting base (2), a soil-crushing rake (3), a rake head (4), a storage box (5), and a hydraulic motor (6), wherein the mounting base (2) is mounted on the rotary tillage frame (1), the soil-crushing rake (3) is mounted in the middle of the mounting base (2), the rake head (4) is mounted at the bottom of the soil-crushing rake (3), the storage box (5) is mounted on the side wall of the soil-crushing rake (3), and the hydraulic motor (6) is mounted on the side wall of the storage box (5), characterized in that, Also includes: The excavation assembly (7) is installed inside the storage bin (5) and is used to excavate the shallow soil layer of saline-alkali land; The cleaning component (8) is located inside the storage box (5) and is used to push the gravel in the saline-alkali land trench to both sides; The grinding assembly (9) is located inside the storage box (5) and is used to break up the shallow soil of the saline-alkali land. Water injection assembly (10), located inside storage tank (5), is used to inject water into the soil layer by squeezing. A compaction assembly (11) is installed inside the storage bin (5) for compacting the soil layers on both sides of the trench. The compaction assembly (11) includes a cylinder (1101), which is installed inside the storage bin (5). A bottom pressure plate (1102) is installed on the end side of the cylinder (1101). Side pressure plates (1103) are symmetrically slidably connected to both sides of the bottom pressure plate (1102). The side walls of the side pressure plates (1103) A first limiting rod (1104) is fixedly connected, and a partition (1105) is rotatably connected to the top of the side pressure plate (1103). A limiting gear shaft (1106) is fixedly connected to the side wall of the partition (1105). A first sliding groove (1107) opened on the inner side wall of the storage box (5) is slidably engaged with the first limiting rod (1104), and a second sliding groove (1108) opened on the inner side wall of the storage box (5) is slidably engaged with the limiting gear shaft (1106).

2. The rotary tillage equipment for salt removal and improvement of saline-alkali land according to claim 1, characterized in that, When the cylinder (1101) retracts, the rake head (4) and the bottom pressure plate (1102) are at the same horizontal height. The axis of the limiting gear shaft (1106) is collinear with the rotation axis of the partition plate (1105) and the side pressure plate (1103). The limiting gear shaft (1106) meshes with the inner wall of the second slide groove (1108).

3. The salt-removing rotary tillage equipment for improving saline-alkali land according to claim 1, characterized in that, The overturning assembly (7) includes a rotating drum (71) driven by a hydraulic motor (6) and rotatably connected inside the storage box (5). Digging plates (72) are evenly slidably connected on the rotating drum (71). Orientation columns (73) are fixedly connected to the side walls of the digging plates (72). Side cover plates (74) are installed on the side walls of the storage box (5). Guide grooves (75) are opened on the inner wall of the side cover plates (74). The orientation columns (73) are slidably engaged with the guide grooves (75). The side cover plates (74) and the rotating drum (71) are collinear.

4. The salt-removing rotary tillage equipment for improving saline-alkali land soil according to claim 3, characterized in that, The cleaning assembly (8) includes a positioning cylinder (81) fixedly connected to the bottom of the soil-breaking rake (3). A sliding rod (82) is symmetrically slidably connected inside the positioning cylinder (81). Angle plates (83) are fixedly connected to one end of the sliding rod (82) located outside the positioning cylinder (81). A first spring (84) is fixedly connected between the angle plate (83) and the positioning cylinder (81). A slide frame (85) is slidably connected on the positioning cylinder (81). A buffer (86) is fixedly connected on the slide frame (85). The end of the buffer (86) abuts against the outer wall of the soil-breaking rake (3). A protruding plate (87) is fixedly connected to the outer wall of the rotating cylinder (71). The protruding plate (87) abuts against the end of the slide frame (85).

5. A rotary tillage device for improving saline-alkali soil according to claim 4, characterized in that, The slide (85) has a chamfer on one side inside the positioning cylinder (81), the slide rod (82) is inclined on the side near the slide (85), and the angle plate (83) is bent toward the soil rake (3) on the side near the rotary tillage support (1).

6. A rotary tillage device for salt removal and improvement of saline-alkali land according to claim 3, characterized in that, The grinding assembly (9) includes a grinding chamber (91) fixedly connected inside the storage box (5), a grinding plate (92) slidably connected to the grinding chamber (91), a reciprocating screw (93) rotatably connected inside the storage box (5), a gear (94) fixedly connected to one end of the reciprocating screw (93) located outside the storage box (5), a first gear plate (95) fixedly connected to one end of the rotating drum (71) located outside the storage box (5), a transmission belt (96) drivingly connecting the gear (94) and the first gear plate (95), and the top of the grinding plate (92) slidingly engaging with the reciprocating screw (93).

7. A rotary tillage device for salt removal and improvement of saline-alkali land according to claim 6, characterized in that, Grinding grooves are provided on the inner wall of the grinding chamber (91) and the adjacent surfaces of the grinding plate (92).

8. A rotary tillage device for improving saline-alkali soil according to claim 1, characterized in that, A flow guide plate (51) is installed at the top of the inner cavity of the storage tank (5), a filter plate (52) is installed inside the storage tank (5) and on the opposite side of the flow guide plate (51), and a liquid storage tank (53) is installed at the bottom of the filter plate (52).

9. A rotary tillage device for improving saline-alkali soil according to claim 6, characterized in that, The water injection assembly (10) includes a water pipe (1001) fixedly connected to the bottom of the liquid storage tank (53). A fixed seat (1002) is fixedly connected inside the water pipe (1001). A first gear shaft (1003) is rotatably connected inside the fixed seat (1002). A sleeve (1004) is slidably connected inside the water pipe (1001). An annular groove (1005) is opened on the outer wall of the sleeve (1004). A liquid outlet hole (1006) is opened at the bottom of the sleeve (1004). A first toothed plate (1007) is fixedly connected inside the sleeve (1004). A plug (1008) is slidably connected to the top of the inner cavity of the water pipe (1001). The bottom of the plug (1008) is fixedly connected to a second toothed plate (1009). The second toothed plate (1009) and the first toothed plate (1007) mesh with each other on both sides of the first toothed shaft (1003). A toothed block (1010) is slidably connected on the second toothed plate (1009). A second toothed disc (1011) is rotatably connected to the surface of the grinding plate (92). A round rod (1012) is fixedly connected to the side of the second toothed disc (1011) near the sleeve (1004). The round rod (1012) is slidably engaged with the annular groove (1005). A transverse toothed plate (1013) fixedly connected inside the storage box (5) meshes with the second toothed disc (1011).

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