Green manure turning and pressing device for acidification improvement of rice soil
By designing a green manure turning device including a down pressure component, the problems of uneven turning pressure and insufficient depth of green manure turning pressure in the prior art are solved, and the deep turning pressure of green manure and the stable supply of nutrients are achieved, and the needs of different depths and soil viscosity are adapted.
Patent Information
- Application Number
- CN202411933848.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-03-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing green manure turning device is difficult to evenly and effectively turn green manure to an ideal depth, resulting in uneven nutrient release, affecting the stable acquisition of sufficient and appropriate nutrient supply of rice roots during the growth cycle.
A green manure turning device including a down pressure assembly is designed. By deflecting the drive arm, the swing arm and the guide block are driven to move, and the lower pressure head contacts the green manure on the surface of the soil and squeezes it into the deep area. Combined with the design of the thread adjustment rod and slider, adaptability to different depths and soil viscosity is achieved.
The deep turning pressure of green manure is achieved, and the nutrients are stored and released in the deep soil, avoiding nutrient enrichment on the surface of the soil, allowing the rice roots to stably obtain sufficient nutrients during the growth cycle, and at the same time adapt to the needs of different depths and soil viscosity.
Smart Images
Figure CN119605376A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of green manure planting and compacting, and in particular to a green manure compacting device used for improving paddy soil acidification. Background Art
[0002] With the continuous development of agriculture, rice, as one of the main food crops, has attracted much attention for its planting yield and quality. Rice growth has strict requirements on soil conditions, and soil acidification is becoming increasingly prominent in many rice-growing areas, seriously affecting the growth and development of rice, nutrient absorption, and final yield and quality.
[0003] Traditional soil acidification improvement methods have many limitations. Although the use of chemical improvers can adjust soil pH to a certain extent, long-term and large-scale use is not only costly, but may also lead to adverse consequences such as soil compaction, environmental pollution, and destruction of soil ecological balance. Green manure planting and turning over, as an ecologically friendly and sustainable soil improvement method, are gradually gaining widespread attention.
[0004] Green manure crops can absorb carbon dioxide from the atmosphere during their growth and enrich nutrients through root nitrogen fixation and other processes. When green manure is pressed into the soil, the rich organic matter, nitrogen and other nutrients it contains are decomposed and transformed by soil microorganisms. On the one hand, it can replenish soil fertility, and on the other hand, it can regulate soil pH and effectively alleviate soil acidification. However, in the existing practice of green manure pressing, there are still many problems that need to be solved.
[0005] Common rotary tillers often have difficulty turning green manure evenly and effectively to the ideal depth when turning it over. Usually, green manure tends to accumulate on the soil surface or mix unevenly, causing nutrients to be released too quickly and concentrated on the surface during decomposition. This not only easily causes nutrient loss, but also fails to give full play to the green manure's improvement of the deep soil structure and fertility. For rice growth, its roots have specific requirements for nutrients and water at different depths of the soil during different growth periods. The uneven turning over and insufficient depth of the surface green manure make it difficult for the rice roots to obtain sufficient and appropriate nutrient supply stably throughout the growth cycle.
[0006] Therefore, it is necessary to provide a green manure turning device for improving paddy soil acidification to solve the above technical problems. Summary of the invention
[0007] In view of the problems existing in the prior art, the present invention provides a green manure turning device for improving the acidification of rice soil.
[0008] The technical solution adopted by the present invention to solve the technical problem is: a green manure turning device for improving paddy soil acidification, comprising an outer shell and a connector, the outer shell is made of steel structure material, a connector for connecting and fixing with a traction device is welded at the center of the head of the outer shell, an axle frame is installed at the top of the outer shell near one end of the connector, a driving shaft is installed in the axle frame, a driven bevel gear is arranged on the outer wall of the driving shaft near the middle section, first driving wheels are installed at both ends of the driving shaft, a driving motor is installed at the center of the top of the outer shell, the output shaft of the driving motor is connected to the driving bevel gear, and the driving bevel gear is meshed with the driven bevel gear; A rotary tiller shaft is installed at one end located inside the outer shell and close to the connecting head, and blades for turning over green manure are staggeredly distributed on the rotary tiller shaft. Both ends of the rotary tiller shaft extend to the outside of the outer shell, and a first driven wheel and a second driving wheel are sequentially and concentrically installed on the rotary tiller shaft located in the outer area of the outer shell, and the first driven wheel and the first driving wheel are connected by a first synchronous belt. A pressing component is provided at one end located inside the outer shell and away from the connecting head, and the green manure on the soil surface is pressed down to the deep soil layer by the pressing component. The pressing assembly includes a rotating shaft symmetrically installed inside the outer shell body, a second driven wheel is installed at the end position of the rotating shaft facing the outer side of the outer shell body, the second driven wheel and the second driving wheel are connected by a second synchronous belt, a rotating disk is eccentrically installed at the end position of the rotating shaft facing the inner side of the outer shell body, an outer ring is installed at the concentric position of the outer ring of the rotating disk through a positioning plate, a supporting shaft is symmetrically installed on the inner side wall of the outer shell body, a driving arm is rotatably installed on the outer side of the supporting shaft, a driving rod is welded to the side wall of one end of the driving arm facing the rotating disk, and the driving rod is inserted between the rotating disk and the outer At the gap of the circular ring, a displacement hole is opened inside the driving arm, and a slider is slidably installed in the displacement hole. A threaded hole is opened at the center position of the slider, and a threaded adjustment rod is installed in the threaded hole, and the threaded adjustment rod is rotatably installed in the displacement hole. A swing arm is hinged on the side wall of the slider, and a guide rail is installed on the inner side wall of the outer shell and below the driving arm. A guide block is slidably installed in the guide rail, and the outer side wall of the guide block is hinged to the bottom of the swing arm at the upper position, and a flat plate is horizontally welded to the outer side wall of the guide block, and a downward pressure head is installed at equal intervals on the head of the flat plate along its path direction.
[0009] Preferably, a rectangular baffle is fixedly mounted on the inner side wall of the outer shell, and the rectangular baffle is located between the blade and the pressing assembly.
[0010] Preferably, steel balls are embedded in the upper and lower end surfaces of the slider, the connection between the steel balls and the slider is coated with lubricating oil, and the steel balls are close to the inner wall of the displacement hole.
[0011] Preferably, the pressure head includes a cross bar fixed to the top of the flat plate by a support frame, limit baffles are fixedly arranged at equal intervals on the outer wall of the cross bar, a sliding plate is slidably installed on the outer wall of the cross bar and located on the same side of two adjacent limit baffles, a support spring is installed on the outer wall of the cross bar and located between the limit baffle and the sliding plate, a strip is welded to the side wall of the sliding plate, a V-shaped groove is opened on the side of the strip facing the rectangular baffle, an extrusion rod is welded to the side wall of the rectangular baffle, and a partial area of the extrusion rod is located in the V-shaped groove.
[0012] Preferably, an inclined chamfer is provided at the bottom edge of the strip.
[0013] Preferably, an adjustment block is welded at the end of one end of the threaded adjustment rod exposed outside the driving arm, and the cross-section of the adjustment block is hexagonal.
[0014] Preferably, mounting holes are symmetrically provided at the rear of the outer shell, and the mounting holes are in the shape of long strips.
[0015] Preferably, the positioning plates and the outer ring are both components made of high-strength steel, and there are multiple positioning plates, which are distributed at equal angles in the circumferential direction relative to the axis of the outer ring.
[0016] Compared with the related art, the green manure turning device for improving paddy soil acidification provided by the present invention has the following beneficial effects: (1) The present invention provides a green manure turning device for improving the acidification of rice soil. The present invention is provided with components such as a downward pressure assembly. When the driving arm is deflected, it will synchronously drive the swing arm to move up and down. The bottom of the swing arm will squeeze the guide block to make a vertical reciprocating motion in the guide rail. When the guide block moves vertically downward, it drives the flat plate and the downward pressure head to descend synchronously. The bottom of the downward pressure head will contact the green manure on the surface of the soil and squeeze it into the deep layer. The deep turning of the green manure can store and slowly release nutrients in the deep soil layer, thereby avoiding the enrichment of nutrients in the soil surface layer, so that the rice root system can stably obtain sufficient and appropriate nutrient supply during the growth cycle.
[0017] (2) The present invention provides a green manure turning device for improving paddy soil acidification. The threaded adjustment rod of the present invention is rotated to cooperate with the threaded hole. Under the squeezing action of the thread, the slider can be displaced in the displacement hole, thereby changing the angle between the swing arm and the drive arm, that is, the vertical displacement of the guide block on the guide rail changes, thereby adapting to the turning requirements of different depths. It can also be changed in real time during the turning process according to the different viscosities of the paddy field soil, and has stronger adaptability.
[0018] (3) The present invention provides a green manure turning device for improving paddy soil acidification. The two adjacent blocks of the present invention can move forward and backward, and the forward and backward movement is synchronized with the descending process. Therefore, in the process of pushing the green manure to the deep layer, the pushed green manure can be horizontally distributed to both sides. The horizontal distribution can help destroy the structure of the green manure clumps, especially for those relatively large green manure clumps. The horizontal vibration impact force can break them up, so that they are better mixed with the soil, further enhancing the effect of green manure turning. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 The present invention is a part of the structure of the three-dimensional Figure 1 ; Figure 3 The present invention is a part of the structure of the three-dimensional Figure 2 ; Figure 4 For the present invention Figure 2 A partial enlarged schematic diagram of the middle A area; Figure 5 For the present invention Figure 3 A partial enlarged schematic diagram of the middle B area; Figure 6 For the present invention Figure 2 A partial enlarged schematic diagram of the middle C area; Numbers in the figure: 1, outer shell, 2, connector, 3, rotary tiller shaft, 4, pressing assembly, 5, rectangular baffle, 6, mounting hole, 11, shaft frame, 12, driving shaft, 13, driven bevel gear, 14, driving motor, 15, driving bevel gear, 16, first driving wheel, 17, first synchronous belt, 31, blade, 32, first driven wheel, 33, second driving wheel, 41, rotating shaft, 42, supporting shaft, 43, driving arm, 44, displacement Hole, 45, slider, 46, threaded adjustment rod, 47, swing arm, 48, guide rail, 49, guide block, 40, lower pressure head, 411, second driven wheel, 412, second synchronous belt, 413, rotating disc, 414, positioning plate, 415, outer ring, 491, fixed plate, 401, cross bar, 402, limit baffle, 403, sliding disc, 404, bar, 405, support spring, 406, V-groove, 407, extrusion rod. DETAILED DESCRIPTION
[0020] 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 described below in conjunction with specific implementation methods.
[0021] In addition, the terms used below are defined based on the functions of the present invention and may differ depending on the intention or custom of the user or operator. Therefore, these terms are defined based on the entire contents of this specification.
[0022] See also Figure 1-Figure 6 The green manure turning device for improving paddy soil acidification of the present invention comprises an outer shell 1 and a connector 2. The outer shell 1 is made of a steel structure material. The outer shell 1 made of a steel structure material is not easily deformed in daily use. A connector 2 for connecting and fixing with a traction device is welded at the center of the head of the outer shell 1. The traction device is specifically a common agricultural tractor. When in use, the traction point of the tractor should be connected to the connector 2 so that the two are integrated. The specific connection between the two is not described in detail in the present invention, and reference is made to the prior art. It should be noted that conventional agricultural tractors used for traction are equipped with a hydraulic system, that is, after being connected to the outer shell 1, the distance between it and the soil can be controlled; A shaft frame 11 is installed at the top of the outer shell 1 near one end of the connector 2, and a driving shaft 12 is installed in the shaft frame 11. A driven bevel gear 13 is arranged on the outer wall of the driving shaft 12 near the middle section thereof. First driving wheels 16 are installed at both ends of the driving shaft 12. A driving motor 14 is installed at the center of the top of the outer shell 1. The output shaft of the driving motor 14 is connected to a driving bevel gear 15, and the driving bevel gear 15 is meshed with the driven bevel gear 13. When the driving motor 14 is started and enters the working state, it will drive the driving bevel gear 15 at one end of its output shaft to rotate, and the rotating driving bevel gear 15 will drive the driven bevel gear 13 to rotate, that is, drive the driving shaft 12 to rotate in the shaft frame 11, and the first driving wheel 16 rotates together with the driving shaft 12. A rotary tillage blade shaft 3 is installed at one end of the outer shell 1 and close to the connector 2. Blades 31 for turning green manure are staggeredly distributed on the rotary tillage blade shaft 3. Green manure should be planted in the rice field during the fallow period or the interval period of rice planting. Green manure varieties such as astragalus and sweet potato can be used; Both ends of the rotary tillage blade shaft 3 extend to the outside of the outer shell 1, and the rotary tillage blade shaft 3 is located in the outer area of the outer shell 1, and the first driven wheel 32 and the second driving wheel 33 are concentrically installed in sequence. The first driven wheel 32 and the first driving wheel 16 are connected by the first synchronous belt 17. When working, the first driving wheel 16 rotates and drives the first driven wheel 32 to rotate through the first synchronous belt 17, and the second driving wheel 33 rotates with the first driven wheel 32, and the two rotate at the same speed. After the first driven wheel 32 rotates, it drives the rotary tillage blade shaft 3 to rotate, thereby driving the blade 31 to rotate to turn over the rice field planted with green manure, and the turning depth is controlled at 10-20cm. The speed of the rotary tillage blade shaft 3 can generally be controlled at 200-250 rpm; In the above-mentioned turning and pressing process, some of the green plants broken by the blade 31 are present on the surface of the soil, but a pressing component 4 is provided at the end inside the outer shell 1 and away from the connecting head 2. The pressing component 4 can press the green manure on the soil surface down to the deep layer of the soil, i.e., the turning and pressing depth of 10-20 cm mentioned above; The pressing assembly 4 includes a rotating shaft 41 symmetrically installed inside the outer shell 1, a second driven wheel 411 is installed at one end of the rotating shaft 41 facing the outer side of the outer shell 1, the second driven wheel 411 is connected to the second driving wheel 33 through a second synchronous belt 412, a rotating disc 413 is eccentrically installed at one end of the rotating shaft 41 facing the inner side of the outer shell 1, an outer ring 415 is installed at the concentric position of the outer ring of the rotating disc 413 through a positioning plate 414, the rotating disc 413, the positioning plate 414 and the outer ring 415 can be understood as an integral part, after the second driving wheel 33 rotates, the second driven wheel 411 is driven to rotate through the second synchronous belt 412, and then the rotating shaft 41 is driven to rotate together through the second driven wheel 411, and then the rotating rotating shaft 41 drives the rotating disc 413 and the outer ring 415 to rotate eccentrically; A supporting shaft 42 is symmetrically mounted on the inner side wall of the outer shell 1, and a driving arm 43 is rotatably mounted on the outer side of the supporting shaft 42. A driving rod 431 is welded to the side wall of one end of the driving arm 43 facing the rotating disc 413, and the driving rod 431 is inserted in the gap between the rotating disc 413 and the outer ring 415. Therefore, when the rotating disc 413 and the outer ring 415 rotate eccentrically, the driving rod 431 is driven by the rotating disc 413 and the outer ring 415 to reciprocate in the gap between the two in the vertical direction. At this time, the driving arm 43 performs reciprocating deflection motion with the supporting shaft 42 as the axis. It should be noted that the positioning plate 414 and the outer ring 415 are both made of a high-strength steel material, and there are multiple positioning plates 414, which are circumferentially distributed at equal angles relative to the axis of the outer ring 415. Therefore, when the driving rod 431 is driven by the rotating disk 413 and the outer ring 415 to make a reciprocating motion in the vertical direction in the gap between the two, the outer ring 415 is not easily deformed, and the service life is effectively guaranteed; A displacement hole 44 is provided inside the driving arm 43, a slider 45 is slidably installed in the displacement hole 44, a threaded hole is provided at the center of the slider 45, a threaded adjustment rod 46 is installed in the threaded hole, and the threaded adjustment rod 46 is rotatably installed in the displacement hole 44, a swing arm 47 is hinged on the side wall of the slider 45, a guide rail 48 is installed on the inner side wall of the outer shell 1 and below the driving arm 43, a guide block 49 is slidably installed in the guide rail 48, the outer side wall of the guide block 49 is hinged to the bottom of the swing arm 47 at the upper position, and a flat plate 491 is horizontally welded to the outer side wall of the guide block 49 at the lower position, and the head of the flat plate 491 Down-pressing heads 40 are installed at equal intervals along the path direction. When the driving arm 43 is deflected, it will synchronously drive the swing arm 47 to move up and down. The bottom of the swing arm 47 will squeeze the guide block 49 to make a vertical reciprocating motion in the guide rail 48. When the guide block 49 moves vertically downward, it drives the flat plate 491 and the down-pressing head 40 to descend synchronously. The bottom of the down-pressing head 40 will contact the green manure on the surface of the soil and squeeze it into the deep layer. The deep pressing of the green manure can store and slowly release nutrients in the deep soil layer, thereby avoiding the enrichment of nutrients in the soil surface layer, so that the rice root system can stably obtain sufficient and appropriate nutrient supply during the growth cycle. Similarly, an adjustment block is welded at one end of the threaded adjustment rod 46 exposed outside the driving arm 43. The cross section of the adjustment block is hexagonal, and a wrench can be conveniently used to cooperate with the hexagonal adjustment block and drive it to rotate together. After the adjustment block rotates, the threaded adjustment rod 46 is driven to rotate. After the threaded adjustment rod 46 rotates, it cooperates with the threaded hole. Under the extrusion of the thread (such as Figure 4 As shown, the slider 45 cannot rotate with the threaded adjustment rod 46 in the displacement hole 44. The slider 45 can be displaced in the displacement hole 44, thereby changing the angle between the swing arm 47 and the drive arm 43, that is, the vertical displacement of the guide block 49 on the guide rail 48 is changed, so as to adapt to the requirements of turning over and pressing at different depths. It can also be changed in real time during the turning over and pressing process according to the different viscosities of the paddy field soil, and has stronger adaptability. To increase the sliding smoothness of the slider 45 in the displacement hole 44 , steel balls may be embedded in the upper and lower end surfaces of the slider 45 , the connection between the steel balls and the slider 45 is coated with lubricating oil, and the steel balls are close to the inner wall of the displacement hole 44 .
[0023] Among them, Figure 3 As shown, a rectangular baffle 5 is fixedly installed on the inner wall of the outer shell 1, and the rectangular baffle 5 is located between the blade 31 and the pressing component 4. During the turning and pressing process, the rectangular baffle 5 can block the mixture of turned-up soil and green manure to prevent part of it from being directly thrown to the side of the pressing component 4. At the same time, the height of the rectangular baffle 5 is generally flush with the bottom of the outer shell 1. After the turning and pressing is completed, the rectangular baffle 5 follows the movement of the traction equipment, and the lower end surface of the rectangular baffle 5 can scrape the turned-over soil flat to facilitate the subsequent planting of rice.
[0024] In another embodiment, see Figure 1-Figure 6 The lower pressure head 40 includes a cross bar 401 fixed on the top of the flat plate 491 by a support frame, and the outer wall of the cross bar 401 is fixedly provided with limit baffles 402 at equal intervals, and a sliding plate 403 is slidably installed on the outer wall of the cross bar 401 and located on the same side of two adjacent limit baffles 402, and a support spring 405 is installed on the outer wall of the cross bar 401 and located between the limit baffle 402 and the sliding plate 403, and a strip 404 is welded on the side wall of the sliding plate 403. Under normal conditions, the sliding plate 403 is pushed to move to the maximum value under the action of the elastic force of the support spring 405, that is, the two adjacent strips 404 are close to each other; A V-shaped groove 406 is provided on one side of the strip 404 facing the rectangular baffle 5, and a squeezing rod 407 is welded on the side wall of the rectangular baffle 5, and a part of the squeezing rod 407 is located in the V-shaped groove 406. In specific operation, when the lower pressure head 40 enters the working state, that is, the strip 404 vertically descends to push the green manure on the surface of the soil to the deep layer, the inner wall of the V-shaped groove 406 will slide along the outer wall of the squeezing rod 407. During the sliding process, the squeezing rod 407 applies a lateral squeezing force to the V-shaped groove 406, so that the two adjacent strips 404 move back and forth, and the support spring 405 is squeezed by the sliding plate 403 and has a rebound force, and the two adjacent strips 404 move back and forth synchronously with their descending process. Therefore, in the process of pushing the green manure to the deep layer, the pushed green manure can be horizontally distributed toward both sides. The horizontal distribution can help destroy the structure of the green manure clumps, especially for those relatively large green manure clumps, the horizontal vibration impact force can break them, so that they are better mixed with the soil, and the effect of green manure turning and pressing is further enhanced. Similarly, when the two blocks 404 rise vertically, part of the extrusion rod 407 returns to the initial position of the V-groove 406, that is, located at the bottom of the V-groove 406, and the compressed support spring 405 pushes the block 404 back to the initial position and vibrates, and the soil attached to the surface of the block 404 is shaken off.
[0025] Furthermore, the bottom edge of the strip 404 is provided with an inclined chamfer, and the strip 404 with the inclined chamfer can more easily enter the deep soil layer. At the same time, the strip 404 at this position can impact partially clumped soil, and can effectively break the compact structure of the soil.
[0026] See also Figure 1-Figure 3 The rear part of the outer shell 1 is symmetrically provided with mounting holes 6, which are in the shape of long strips. The mounting holes 6 are the mounting holes for the rake teeth. The rake teeth are installed according to the actual turning and pressing requirements. Generally, the rake teeth are installed when the viscosity of the paddy field soil is relatively large. The long strip mounting holes 6 can adjust the installation height of the rake teeth and have high adaptability.
[0027] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A green manure turning device for improving paddy soil acidification, comprising an outer shell (1) and a connector (2), characterized in that: The outer shell (1) is made of a steel structure material. A connecting head (2) for connecting and fixing with a traction device is welded at a center position of the head of the outer shell (1). A shaft frame (11) is installed at one end of the top of the outer shell (1) near the connecting head (2). A driving shaft (12) is installed inside the shaft frame (11). A driven bevel gear (13) is arranged on the outer wall of the driving shaft (12) near the middle position. First driving wheels (16) are installed at both ends of the driving shaft (12). A driving motor (14) is installed at a center position of the top of the outer shell (1). The output shaft of the driving motor (14) is connected to a driving bevel gear (15), and the driving bevel gear (15) is meshed with the driven bevel gear (13). A rotary tiller shaft (3) is installed at one end located inside the outer shell (1) and close to the connecting head (2), blades (31) for turning green manure are staggeredly distributed on the rotary tiller shaft (3), both ends of the rotary tiller shaft (3) extend to the outside of the outer shell (1), and a first driven wheel (32) and a second driving wheel (33) are coaxially installed in the rotary tiller shaft (3) located in the outer area of the outer shell (1), the first driven wheel (32) and the first driving wheel (16) are connected via a first synchronous belt (17), and a pressing component (4) is provided at one end located inside the outer shell (1) and away from the connecting head (2), and the green manure located on the soil surface is pressed down to the deep soil layer by the pressing component (4); The pressing assembly (4) comprises a rotating shaft (41) symmetrically mounted inside the outer shell (1); a second driven wheel (411) is mounted at an end of the rotating shaft (41) facing the outside of the outer shell (1); the second driven wheel (411) is connected to the second driving wheel (33) via a second synchronous belt (412); a rotating disk (413) is eccentrically mounted at an end of the rotating shaft (41) facing the inside of the outer shell (1); an outer ring (415) is mounted at a concentric position of the outer ring of the rotating disk (413) via a positioning plate (414); a supporting shaft (42) is symmetrically mounted on the inner side wall of the outer shell (1); a driving arm (43) is rotatably mounted on the outer side of the supporting shaft (42); a driving rod (431) is welded to a side wall of one end of the driving arm (43) facing the rotating disk (413); and the driving rod (431) is plugged into the rotating disk (413). A displacement hole (44) is provided inside the driving arm (43) at a gap between the driving arm (413) and the outer ring (415), a slider (45) is slidably mounted in the displacement hole (44), a threaded hole is provided at a central position inside the slider (45), a threaded adjustment rod (46) is co-installed in the threaded hole, and the threaded adjustment rod (46) is rotatably mounted in the displacement hole (44), a swing arm (47) is hingedly connected to the side wall of the slider (45), a guide rail (48) is installed on the inner side wall of the outer shell (1) and at a position below the driving arm (43), a guide block (49) is slidably mounted in the guide rail (48), an outer side wall of the guide block (49) is hingedly connected to the bottom of the swing arm (47) at an upper position, a flat plate (491) is horizontally welded to the outer side wall of the guide block (49) at a lower position, and a downward pressure head (40) is installed at equal intervals on the head of the flat plate (491) along its path direction.
2. A green manure turning device for improving paddy soil acidification according to claim 1, characterized in that: A rectangular baffle (5) is fixedly mounted on the inner side wall of the outer shell (1), and the rectangular baffle (5) is located between the blade (31) and the pressing assembly (4).
3. The green manure turning device for improving paddy soil acidification according to claim 1, characterized in that: Steel balls are embedded in the upper and lower end surfaces of the slider (45), the connection between the steel ball and the slider (45) is coated with lubricating oil, and the steel ball is closely attached to the inner wall of the displacement hole (44).
4. The green manure turning device for improving paddy soil acidification according to claim 2, characterized in that: The pressing head (40) comprises a cross bar (401) fixed to the top of the flat plate (491) by a support frame, the outer wall of the cross bar (401) is fixedly provided with limit baffles (402) at equal intervals, the outer wall of the cross bar (401) is slidably provided with a sliding plate (403) located on the same side of two adjacent limit baffles (402), the outer wall of the cross bar (401) is provided with a supporting spring (405) installed between the limit baffles (402) and the sliding plate (403), the side wall of the sliding plate (403) is welded with a strip (404), the side of the strip (404) facing the rectangular baffle (5) is provided with a V-shaped groove (406), the side wall of the rectangular baffle (5) is welded with an extrusion rod (407), and a part of the extrusion rod (407) is located in the V-shaped groove (406).
5. The green manure turning device for improving paddy soil acidification according to claim 4, characterized in that: The bottom edge of the strip (404) is provided with an inclined chamfer.
6. The green manure turning device for improving paddy soil acidification according to claim 1, characterized in that: An adjustment block is welded at one end of the threaded adjustment rod (46) protruding from the driving arm (43), and the cross section of the adjustment block is hexagonal.
7. The green manure turning device for improving paddy soil acidification according to claim 1, characterized in that: The rear portion of the outer shell (1) is symmetrically provided with mounting holes (6), and the mounting holes (6) are in the shape of long strips.
8. The green manure turning device for improving paddy soil acidification according to claim 1, characterized in that: The positioning plate (414) and the outer ring (415) are both components made of high-strength steel, and there are multiple positioning plates (414). The multiple positioning plates (414) are distributed at equal angles in the circumferential direction relative to the axis of the outer ring (415).