A soil optimization device for grain-growing areas

Abstract

This invention discloses a soil optimization device for grain-growing areas, belonging to the technical field of plowing devices. It includes a transfer frame with two moving components. By incorporating an unfolding component, an arc-shaped support plate can be brought into contact with the ground during transfer and transportation, thus preventing the plow blades from directly contacting the ground, reducing equipment damage and ground disturbance. An adjustment unit can lock the position of the arc-shaped support plate in various states, improving its stability during operation. The cooperation between the unfolding and moving components allows the device to be unfolded and retracted, facilitating folding when not in use, reducing space occupation, and simplifying transportation and storage. The moving components effectively protect the plow blades and clean any adhering substances from their surface during plowing, thereby enhancing the soil optimization effect of the plow blades.

Description

Technical Field

[0001] This invention relates to the field of tillage equipment technology, and in particular to a soil optimization device for grain-growing areas. Background Technology

[0002] With the increasing demand for efficient tillage and soil optimization in modern agriculture, the limitations of traditional plowing devices are becoming increasingly apparent. Existing plowing equipment often occupies a large space during transportation and storage, and the plow blades are prone to contact with the ground when not in use, leading to equipment damage or unnecessary ground damage. Furthermore, during tillage, soil and debris easily adhere to the surface of the plow blades, affecting tillage efficiency, and the lack of effective cleaning and protection mechanisms results in shortened equipment lifespan and reduced tillage efficiency. Therefore, this invention provides a soil optimization device for grain-growing areas. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing a soil optimization device for grain-growing areas. It overcomes the problems that plow blades can easily cause unnecessary damage to the ground when not in use, and cannot effectively clean the deposits on the surface of the plow blades.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a soil optimization device for grain planting areas, comprising a migration frame, on which two motion components are arranged, each motion component including a circular cover plate rotatably mounted on the migration frame, each circular cover plate having an unfolding circular plate fixedly mounted thereon, and multiple arc-shaped support plates slidably mounted in a circumferential array between the unfolding circular plate and the corresponding circular cover plate, each unfolding circular plate also having an adjustment unit for adjusting and limiting the position of the arc-shaped support plates, an unfolding component being arranged between the two unfolding circular plates, the unfolding component including two moving circular plates, the moving circular plates being rotatably connected to the corresponding unfolding circular plates, a linkage unit being arranged between the moving circular plates and the corresponding unfolding circular plates, six fixed long rods being fixedly arranged in a circumferential array between the two moving circular plates, six fan-shaped long plates being arranged in a circumferential array between the two moving circular plates, and six displacement slide plates being slidably mounted in a circumferential array between the two moving circular plates, with multiple plow blades evenly fixedly mounted on the displacement slide plates, the plow blades and the corresponding fan-shaped long plates slidingly engaging.

[0005] Furthermore, the axes of the two circular cover plates and the two unfolding circular plates are all on the same straight line. Each of the arc-shaped support plates is fixedly equipped with an unfolding slider one and an unfolding slider two. The unfolding slider one slides in cooperation with the corresponding unfolding circular plate, and the unfolding slider two slides in cooperation with the corresponding circular cover plate. When multiple arc-shaped support plates in the same moving component are in the closest position, the multiple arc-shaped support plates join together to form a complete ring plate.

[0006] Furthermore, each adjustment unit includes a circular slide and an annular slide. The annular slide is slidably mounted on the corresponding unfolding circular plate, and the circular slide is slidably mounted on the annular slide. A strip unfolding plate is provided between the circular slide and the unfolding slider. One end of the strip unfolding plate is rotatably connected to the circular slide, and the other end of the strip unfolding plate is rotatably connected to the unfolding slider. A limiting ring plate is also fixedly installed on the unfolding circular plate to limit the position of the unfolding slider.

[0007] Furthermore, an adjusting screw is rotatably mounted on the unfolding circular plate. The adjusting screw and the annular slide form a helical pair. Limiting spring one and limiting spring two are respectively set between the two sides of the annular slide and the circular slide. Four limiting rods are also fixedly arranged in a circumferential array on the unfolding circular plate. The limiting rods are used to limit the position of the circular slide.

[0008] Furthermore, multiple limiting blocks 1 are fixedly arranged in a circular array on the annular slide, and multiple limiting blocks 2 are also fixedly arranged in a circular array on the annular slide. The size of limiting blocks 1 and limiting blocks 2 is equal, and limiting slots that cooperate with limiting blocks 1 are provided on both unfolding slider 1 and unfolding slider 2.

[0009] Furthermore, each linkage unit includes an annular linkage plate, which is slidably mounted on the corresponding moving circular plate. Six linkage short rods are fixedly arranged in a circumferential array on the annular linkage plate. The linkage short rods are slidably engaged with the corresponding moving circular plate and unfolding circular plate. Six linkage push rods are also fixedly arranged in a circumferential array on the circular carriage. The linkage push rods are slidably engaged with the corresponding moving circular plate and unfolding circular plate. The axes of the linkage push rods and the corresponding linkage short rods are on the same straight line, and the diameters of the linkage short rods and the linkage push rods are equal.

[0010] Furthermore, the two moving circular plates are fixed together by a fixed long rod. Multiple bolts are installed between the fan-shaped long plate and the corresponding fixed long rod. The fan-shaped long plate and the corresponding fixed long rod are fixed together by bolts. When all the fan-shaped long plates are engaged with the corresponding fixed long rods, the six fan-shaped long plates form a complete ring plate.

[0011] Furthermore, a displacement screw is rotatably installed between the two moving circular plates, and four displacement sliders are also slidably installed evenly between the two moving circular plates. Each displacement slider and the displacement screw forms a helical pair. A strip-shaped displacement plate is provided between each displacement slider and the displacement slide plate. One end of the strip-shaped displacement plate is rotatably connected to the displacement slide plate, and the other end of the strip-shaped displacement plate is rotatably connected to the corresponding displacement slider.

[0012] Furthermore, when both the fan-shaped long plate and the arc-shaped support plate are located at positions closest to the axis of the moving circular plate, the diameters of the unfolded circular plate, the circular cover plate, the annular plate formed by the six fan-shaped long plates, and the annular plate formed by the multiple arc-shaped support plates are equal.

[0013] The beneficial effects of this invention compared with the prior art are as follows: (1) By setting up the unfolding component, this invention enables the arc-shaped support plate to contact the ground during transfer and transportation, thereby avoiding direct contact between the plow blades and the ground, reducing equipment damage and ground damage. (2) By setting up the adjustment unit, this invention enables the position of the arc-shaped support plate to be locked in various states, thereby improving the stability of the arc-shaped support plate during operation. (3) By cooperating with the unfolding component and the moving component, this invention makes the device a structure that can be unfolded and retracted, which is convenient to fold when not in use, reducing space occupation and facilitating transportation and storage. (4) By setting up the moving component, this invention can effectively protect the plow blades and effectively clean the adhering substances on the surface of the plow blades during plowing, thereby improving the optimization effect of the plow blades on the soil. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the internal structure of the fan-shaped long plate of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of the motion component of the present invention.

[0017] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0018] Figure 5 This is a schematic diagram of the structure of the unfolding component of the present invention.

[0019] Figure 6 for Figure 5 A magnified view of a portion of point B in the middle.

[0020] Figure 7 This is a schematic diagram of the linkage unit of the present invention.

[0021] Figure 8 This is a schematic diagram of the structure of the annular carriage of the present invention.

[0022] Figure 9 for Figure 8 A magnified view of a portion of point C.

[0023] Figure 10 This is a front view of the structure at the displacement sliding plate of the present invention.

[0024] Figure 11 This is a schematic diagram of the structure of the circular carriage of the present invention.

[0025] Figure 12 for Figure 11 A magnified view of a portion of point D.

[0026] Reference numerals: 101-Moving circular plate; 102-Unfolding circular plate; 103-Circular cover plate; 104-Transfer frame; 105-Fan-shaped long plate; 106-Arc-shaped support plate; 107-Bolt; 108-Plow blade; 109-Limiting ring plate; 110-Displacement slide plate; 111-Displacement screw; 112-Displacement slider; 113-Displacement motor; 114-Annular linkage plate; 115-Strip displacement plate; 116-Circular carriage ; 117- Annular slide; 118- Adjusting screw; 119- Unfolding slider one; 120- Strip unfolding plate; 121- Limiting block one; 122- Limiting block two; 123- Unfolding slider two; 124- Linkage short rod; 125- Linkage push rod; 126- Limiting rod; 127- Adjusting motor; 128- Auxiliary motor; 129- Limiting spring one; 130- Limiting spring two; 131- Fixed long rod; 132- Limiting slot. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] Example: Reference Figures 1-12 A soil optimization device for grain planting areas includes a migration frame 104. The migration frame 104 is equipped with two motion components. Each motion component includes a circular cover plate 103 rotatably mounted on the migration frame 104. An unfolded circular plate 102 is fixedly mounted on each circular cover plate 103. The axes of the two circular cover plates 103 and the two unfolded circular plates 102 are all on the same straight line. Multiple arc-shaped support plates 106 are slidably mounted in a circumferential array between the unfolded circular plate 102 and the corresponding circular cover plate 103. When the multiple arc-shaped support plates 106 in the same motion component are at their closest positions, the multiple arc-shaped support plates 106 join together to form a complete ring plate.

[0029] Each of the arc-shaped support plates 106 is fixedly equipped with an unfolding slider 119 and an unfolding slider 123. The unfolding slider 119 slides in engagement with the corresponding unfolding circular plate 102, and the unfolding slider 123 slides in engagement with the corresponding circular cover plate 103. Each unfolding circular plate 102 is also equipped with an adjustment unit for adjusting and limiting the position of the arc-shaped support plate 106. Each adjustment unit includes a circular slide 116 and an annular slide 117. The annular slide 117 is slidably mounted on the corresponding unfolding circular plate 102, and the circular slide 116 is slidably mounted on the annular slide 117. An adjustment screw 118 is rotatably mounted on the unfolding circular plate 102. The adjustment screw 118 and the annular slide 117 form a screw pair. An adjustment valve is fixedly mounted on the unfolding circular plate 102. The output shaft of the adjusting motor 127 is fixedly connected to the corresponding adjusting screw 118. A strip-shaped unfolding plate 120 is provided between the circular slide 116 and the unfolding slider 119. One end of the strip-shaped unfolding plate 120 is rotatably connected to the circular slide 116, and the other end of the strip-shaped unfolding plate 120 is rotatably connected to the unfolding slider 119. A limiting ring plate 109 is also fixedly installed on the unfolding circular plate 102. The limiting ring plate 109 is used to limit the position of the unfolding slider 119. Limiting spring 129 and limiting spring 2 130 are respectively provided between the two sides of the annular slide 117 and the circular slide 116. Four limiting rods 126 are also fixedly arranged in a circumferential array on the unfolding circular plate 102. The limiting rods 126 are used to limit the position of the circular slide 116.

[0030] The annular slide 117 is fixedly provided with multiple limiting blocks 121 in a circular array, and the annular slide 117 is also fixedly provided with multiple limiting blocks 122 in a circular array. The limiting blocks 121 and the limiting blocks 122 are of equal size. The unfolding slider 119 and the unfolding slider 123 are both provided with limiting slots 132 that cooperate with the limiting blocks 121.

[0031] In the initial position, neither the first limiting spring 129 nor the second limiting spring 130 is compressed. At this time, both the first unfolding slider 119 and the second unfolding slider 123 are located closest to the axis of the unfolding circular plate 102. At this time, the end of the first unfolding slider 119 closest to the axis of the unfolding circular plate 102 is in contact with the limiting ring plate 109. At this time, both the arc-shaped support plates 106 are located closest to the axis of the unfolding circular plate 102. Multiple arc-shaped support plates 106 of the same moving component form a complete ring plate. The circular slide 116 is not in contact with the limiting rod 126. The end face of the circular slide 116 is in contact with the circular cover plate 103. The second limiting block 122 is not in contact with the second unfolding slider 123, but the limiting slots 132 on the second limiting block 122 and the second unfolding slider 123 are in corresponding positions. The first limiting block 121 is not in contact with the limiting slot 132 on the first unfolding slider 119.

[0032] The starting motor 127 drives the adjusting screw 118 to rotate, causing the annular slide 117 to move away from the adjusting motor 127. Under the action of the first limiting spring 129 and the second limiting spring 130, the circular slide 116 moves synchronously. Since the end face of the circular slide 116 contacts the circular cover plate 103 at this time, it cannot continue to move. That is, the first limiting spring 129 is compressed at this time, and the annular slide 117 moves relative to the circular slide 116. The second limiting block 122 on the annular slide 117 moves towards the limiting slot 132 on the second unfolding slider 123. Finally, the second limiting block 122 and the limiting slot 132 on the second unfolding slider 123 engage. Under the action of the second limiting block 122, the second unfolding slider 123 cannot move further, thus locking the position of the arc-shaped support plate 106.

[0033] The starting motor 127 drives the adjusting screw 118 to rotate, causing the annular slide 117 to move closer to the adjusting motor 127. Under the action of the first limiting spring 129 and the second limiting spring 130, the circular slide 116 moves synchronously. Under the action of the strip unfolding plate 120, the first unfolding slider 119 moves away from the axis of the unfolding circular plate 102, and the arc-shaped support plate 106 moves synchronously away from the axis of the unfolding circular plate 102. Finally, the circular slide 116 moves to contact the limiting rod.

[0034] 126. Under the action of the limiting rod 126, the circular slide 116 can no longer move. At this time, the unfolding slider 119 moves to the position furthest from the axis of the unfolding circular plate 102, that is, the arc-shaped support plate 106 moves to the position furthest from the axis of the unfolding circular plate 102. At this time, the positions of the limiting block 121 and the limiting slot 132 on the unfolding slider 119 correspond. The annular slide 117 continues to move towards the adjustment motor 127. The limiting spring 130 is compressed, and the annular slide 117 moves relative to the circular slide 116. The limiting block 121 on the annular slide 117 moves synchronously, so that the limiting block 121 and the limiting slot 132 on the unfolding slider 119 engage. Finally, the limiting block 121 and the limiting slot 132 on the unfolding slider 119 are fully engaged. Under the action of the limiting block 121, the unfolding slider 119 cannot move freely, that is, the arc-shaped support plate 106 cannot move freely.

[0035] An unfolding assembly is provided between the two unfolding circular plates 102. The unfolding assembly includes two moving circular plates 101, which are rotatably connected to their corresponding unfolding circular plates 102. A linkage unit is provided between the moving circular plates 101 and their corresponding unfolding circular plates 102. An auxiliary motor 128 is fixedly mounted on each unfolding circular plate 102, and the output shaft of the auxiliary motor 128 is fixedly connected to its corresponding moving circular plate 101. Each linkage unit includes a ring-shaped linkage plate 114, which is slidably mounted on its corresponding moving circular plate 101. The ring-shaped linkage plate 114 and the moving circular plate 102 are connected. Springs are provided between plates 101. Six linkage rods 124 are fixedly arranged in a circular array on the annular linkage plate 114. The linkage rods 124 are slidably engaged with the corresponding moving circular plate 101 and unfolding circular plate 102. Six linkage push rods 125 are also fixedly arranged in a circular array on the circular slide 116. The linkage push rods 125 are slidably engaged with the corresponding moving circular plate 101 and unfolding circular plate 102. The axes of the linkage push rods 125 and the corresponding linkage rods 124 are on the same straight line, and the diameters of the linkage rods 124 and the linkage push rods 125 are equal.

[0036] In the initial position, the spring between the annular linkage plate 114 and the moving circular plate 101 is not compressed. At this time, the linkage short rod 124 is engaged with both the moving circular plate 101 and the unfolding circular plate 102. Under the action of the linkage short rod 124, the moving circular plate 101 and the unfolding circular plate 102 are a whole. That is, the unfolding circular plate 102 cannot rotate relative to the moving circular plate 101. At this time, the linkage push rod 125 is not in contact with the corresponding linkage short rod 124.

[0037] When the circular slide 116 moves closer to the adjusting motor 127, the linkage push rod 125 on the circular slide 116 moves synchronously. The linkage push rod 125 contacts the linkage short rod 124, pushing the linkage short rod 124 to move away from the circular cover plate 103. When the circular slide 116 moves to contact the limit rod 126, the linkage short rod 124 disengages from and unfolds the circular plate.

[0038] When contact is made at 102, the surface of the unfolded circular plate 102 furthest from the circular cover plate 103 and the end face of the linkage push rod 125 furthest from the circular cover plate 103 are on the same plane. The surface of the moving circular plate 101 closest to the circular cover plate 103 and the end face of the linkage short rod 124 closest to the circular cover plate 103 are on the same plane. At this time, the auxiliary motor 128 is started to drive the moving circular plate 101 to rotate, and the unfolded circular plate 102 rotates relative to the moving circular plate 101.

[0039] Six fixed long rods 131 are fixedly arranged in a circumferential array between the two moving circular plates 101. The two moving circular plates 101 are fixed together by the fixed long rods 131. Six fan-shaped long plates 105 are also arranged in a circumferential array between the two moving circular plates 101. Multiple bolts 107 are provided between the fan-shaped long plates 105 and the corresponding fixed long rods 131. The fan-shaped long plates 105 and the corresponding fixed long rods 131 are fixed together by the bolts 107. When all the fan-shaped long plates 105 are engaged with the corresponding fixed long rods 131, the six fan-shaped long plates 105 form a complete ring plate.

[0040] Between the two moving circular plates 101, six displacement slide plates 110 are slidably mounted in a circular array. The two ends of each displacement slide plate 110 are slidably engaged with the corresponding moving circular plate 101. Multiple plowing blades 108 are evenly fixed on each displacement slide plate 110, and the plowing blades 108 are slidably engaged with corresponding fan-shaped long plates 105. A displacement screw 111 is rotatably mounted between the two moving circular plates 101, with both ends rotatably connected to the corresponding moving circular plate 101. One of the two moving circular plates 101... A displacement motor 113 is fixedly installed on the moving circular plate 101. The output shaft of the displacement motor 113 is fixedly connected to the displacement lead screw 111. Four displacement sliders 112 are also evenly slidably installed between the two moving circular plates 101. Each displacement slider 112 forms a helical pair with the displacement lead screw 111. A strip displacement plate 115 is provided between the displacement slider 112 and the displacement slide plate 110. One end of the strip displacement plate 115 is rotatably connected to the displacement slide plate 110, and the other end of the strip displacement plate 115 is rotatably connected to the corresponding displacement slider 112.

[0041] In the initial position, the displacement slider 112 is located at the position furthest from the displacement motor 113, and the displacement slide plate 110 is located at the position closest to the axis of the displacement screw 111. At this time, the end face of the plow blade 108 furthest from the displacement screw 111 and the arc surface of the fan-shaped long plate 105 furthest from the displacement screw 111 are on the same cylindrical surface.

[0042] The displacement motor 113 is started to drive the displacement screw 111 to rotate, so that the displacement slider 112 moves synchronously towards the displacement motor 113. Under the action of the strip displacement plate 115, the displacement slide plate 110 moves synchronously away from the axis of the displacement screw 111, thereby causing the plowing blade 108 to move synchronously away from the axis of the displacement screw 111. Finally, the displacement slide plate 110 moves to the position furthest from the axis of the displacement screw 111, so that the plowing blade 108 is fully deployed.

[0043] When the fan-shaped long plate 105 and the arc-shaped support plate 106 are both located at the position closest to the axis of the moving circular plate 101, the diameters of the unfolded circular plate 102, the circular cover plate 103, the ring plate formed by the six fan-shaped long plates 105, and the ring plate formed by the multiple arc-shaped support plates 106 are equal.

[0044] Working principle: The device is connected to the tractor via the transfer frame 104, and one of the two circular cover plates 103 is connected to the power source of the tractor. Then, the displacement motor 113 is started to drive the displacement screw 111 to rotate, so that the plowing blades 108 move to the position furthest from the axis of the displacement screw 111, thus unfolding the plowing blades 108. Then, the two adjustment motors 127 are started to move the two annular slides 117 in a direction away from each other, so that the limiting slots 132 on the limiting block 122 and the unfolding slider 123 engage, thus locking the position of the arc-shaped support plate 106. At this time, under the action of the linkage short rod 124, the moving circular plate 101 and the unfolding circular plate 102 become a whole. The circular cover plate 103 is driven to rotate by the tractor, so that the moving circular plate 101, the unfolding circular plate 102, and the circular cover plate 103 rotate synchronously, so that the plowing blades 108 optimize the tillage of the soil.

[0045] When the device needs to be transferred or transported, the displacement motor 113 is activated to move the plow blades 108 to the position closest to the axis of the displacement screw 111. Then, the adjustment motor 127 is activated to move the circular carriage 116 and the annular carriage 117 toward the adjustment motor 127. Finally, the circular carriage 116 moves to contact the limit rod 126. Under the action of the linkage push rod 125, the linkage short rod 124 disengages from the unfolding circular plate 102. Under the action of the strip unfolding plate 120, the unfolding slider 119 unfolds. Move to the position furthest from the axis of the unfolded circular plate 102. At this time, the arc-shaped support plate 106 moves to the position furthest from the axis of the unfolded circular plate 102, thus unfolding the arc-shaped support plate 106. The limiting block 121 and the limiting slot 132 on the unfolding slider 119 engage. Under the action of the limiting block 121, the position of the arc-shaped support plate 106 at this time is fixed. That is, under the drag of the transfer vehicle, the arc-shaped support plate 106 contacts the ground and moves, thereby preventing the plow blade 108 from damaging the ground.

[0046] After plowing for a period of time, the displacement motor 113 is started, causing the plow blade 108 to move towards the axis of the displacement screw 111. The plow blade 108 slides relative to the fan-shaped long plate 105, and under the action of the fan-shaped long plate 105, the adhering material on the surface of the plow blade 108 is automatically scraped off.

[0047] When the plow blade 108 needs to be replaced, remove the bolt 107 to remove the fan-shaped plate 105, which makes it easier to replace and repair the plow blade 108.

[0048] This invention is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort are within the protection scope of this invention.

Claims

1. A soil optimization device for grain-growing areas, comprising a transfer frame (104), characterized in that: The transfer frame (104) is provided with two motion components. Each motion component includes a circular cover plate (103) rotatably mounted on the transfer frame (104). An unfolding circular plate (102) is fixedly mounted on each circular cover plate (103). Multiple arc-shaped support plates (106) are slidably mounted in a circumferential array between the unfolding circular plate (102) and the corresponding circular cover plate (103). Each unfolding circular plate (102) is also provided with an adjustment unit, which is used to adjust and limit the position of the arc-shaped support plates (106). An unfolding component is provided between the two unfolding circular plates (102). The unfolding component includes two moving circular plates (101). 01) and the corresponding unfolded circular plate (102) are rotatably connected. A linkage unit is provided between the moving circular plate (101) and the corresponding unfolded circular plate (102). Six fixed long rods (131) are fixedly arranged in a circular array between the two moving circular plates (101). Six fan-shaped long plates (105) are also arranged in a circular array between the two moving circular plates (101). Six displacement slide plates (110) are also slidably installed in a circular array between the two moving circular plates (101). Multiple plow blades (108) are evenly fixed on the displacement slide plates (110). The plow blades (108) and the corresponding fan-shaped long plates (105) slide in cooperation. The axes of the two circular cover plates (103) and the two unfolding circular plates (102) are all on the same straight line. The arc support plate (106) is fixedly provided with unfolding slider one (119) and unfolding slider two (123). The unfolding slider one (119) is slidably engaged with the corresponding unfolding circular plate (102), and the unfolding slider two (123) is slidably engaged with the corresponding circular cover plate (103). When multiple arc support plates (106) in the same moving component are in the closest position, the multiple arc support plates (106) join together to form a complete ring plate. Each adjustment unit includes a circular slide (116) and an annular slide (117). The annular slide (117) is slidably mounted on the corresponding unfolding circular plate (102). The circular slide (116) is slidably mounted on the annular slide (117). A strip unfolding plate (120) is provided between the circular slide (116) and the unfolding slider (119). One end of the strip unfolding plate (120) is rotatably connected to the circular slide (116), and the other end of the strip unfolding plate (120) is rotatably connected to the unfolding slider (119). A limiting ring plate (109) is also fixedly installed on the unfolding circular plate (102). The limiting ring plate (109) is used to limit the position of the unfolding slider (119). An adjusting screw (118) is rotatably mounted on the unfolding circular plate (102). The adjusting screw (118) and the annular slide (117) form a helical pair. Limiting spring one (129) and limiting spring two (130) are respectively provided between the two sides of the annular slide (117) and the circular slide (116). Four limiting rods (126) are also fixedly arranged in a circular array on the unfolding circular plate (102). The limiting rods (126) are used to limit the position of the circular slide (116). The annular slide (117) is fixedly provided with a plurality of limiting blocks 1 (121) in a circular array. The annular slide (117) is also fixedly provided with a plurality of limiting blocks 2 (122) in a circular array. The limiting blocks 1 (121) and the limiting blocks 2 (122) are of equal size. The unfolding slider 1 (119) and the unfolding slider 2 (123) are both provided with limiting slots (132) that cooperate with the limiting blocks 1 (121).

2. The soil optimization device for grain-growing areas according to claim 1, characterized in that: Each linkage unit includes an annular linkage plate (114), which is slidably mounted on the corresponding moving circular plate (101). Six linkage short rods (124) are fixedly arranged in a circular array on the annular linkage plate (114). The linkage short rods (124) are slidably engaged with the corresponding moving circular plate (101) and unfolding circular plate (102). Six linkage push rods (125) are also fixedly arranged in a circular array on the circular slide (116). When the linkage push rods (125) are engaged with the corresponding moving circular plate (101) and unfolding circular plate (102), they are slidably engaged. The axes of the linkage push rods (125) and the corresponding linkage short rods (124) are on the same straight line, and the diameters of the linkage short rods (124) and the linkage push rods (125) are equal.

3. The soil optimization device for grain-growing areas according to claim 2, characterized in that: The two moving circular plates (101) are fixed together by a fixed long rod (131). Multiple bolts (107) are provided between the fan-shaped long plate (105) and the corresponding fixed long rod (131). The fan-shaped long plate (105) and the corresponding fixed long rod (131) are fixed together by bolts (107). When all the fan-shaped long plates (105) are engaged with the corresponding fixed long rods (131), the six fan-shaped long plates (105) form a complete ring plate.

4. A soil optimization device for grain-growing areas according to claim 3, characterized in that: A displacement screw (111) is rotatably installed between two moving circular plates (101). Four displacement sliders (112) are also slidably installed between the two moving circular plates (101). Each displacement slider (112) forms a helical pair with the displacement screw (111). A strip displacement plate (115) is provided between the displacement slider (112) and the displacement slide plate (110). One end of the strip displacement plate (115) is rotatably connected to the displacement slide plate (110), and the other end of the strip displacement plate (115) is rotatably connected to the corresponding displacement slider (112).

5. A soil optimization device for grain-growing areas according to claim 4, characterized in that: When the fan-shaped long plate (105) and the arc-shaped support plate (106) are both located at the position closest to the axis of the moving circular plate (101), the diameters of the unfolded circular plate (102), the circular cover plate (103), the ring plate formed by the six fan-shaped long plates (105), and the ring plate formed by the multiple arc-shaped support plates (106) are equal.

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