Soil optimization device for grain planting land

Abstract

The invention discloses a soil optimization device for grain planting land, and belongs to the technical field of ploughing devices.The soil optimization device comprises a migration frame, two movement assemblies are arranged on the migration frame, and by arranging an unfolding assembly, an arc-shaped supporting plate can make contact with the ground during transferring and transporting, so that ploughing blades are prevented from making direct contact with the ground, and the soil optimization effect is improved. By arranging the position adjusting unit, the positions of the arc-shaped supporting plate in various states can be locked, so that the stability of the arc-shaped supporting plate in the operation process is improved, the device is of an extensible and retractable structure through mutual cooperation of the unfolding assembly and the moving assembly, folding is facilitated when the device is not used, and the device is convenient to use. The plowing device is simple in structure and convenient to use, the occupied space is reduced, transportation and storage are convenient, the plowing blade can be effectively protected by arranging the moving assembly, attachments on the surface of the plowing blade can be effectively cleaned in the plowing process, and therefore the optimization effect of the plowing blade on soil is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of plowing devices, and in particular to a soil optimization device for grain planting fields. Background Art

[0002] With the increasing demand for efficient tillage and soil optimization in modern agriculture, the limitations of traditional plowing devices have gradually emerged. Existing plowing equipment often occupies a large amount of space during transportation and storage, and the plowing blades are prone to contact the ground in the non-working state, resulting in equipment damage or unnecessary damage to the ground. Moreover, during the tillage process, the surface of the plowing blades is easily attached with soil and debris, affecting the tillage effect, and lacking an effective cleaning and protection mechanism, leading to a shortened equipment life and a decreased tillage efficiency. Therefore, the present invention provides a soil optimization device for grain planting fields. Summary of the Invention

[0003] Aiming at the defects in the prior art, the present invention provides a soil optimization device for grain planting fields, which overcomes the problems that the plowing blades are prone to cause unnecessary damage to the ground in the non-working state and cannot effectively clean the attachments on the surface of the plowing blades.

[0004] To achieve the above object, the present invention provides the following technical solution: A soil optimization device for grain planting fields includes a migration frame, on which two movement components are provided. Each movement component includes a circular cover plate rotatably installed on the migration frame, and an unfolding circular plate is fixedly installed on each circular cover plate. A plurality of arc-shaped support plates are slidably installed between the unfolding circular plate and the corresponding circular cover plate in a circumferential array. Each unfolding circular plate is also provided with an adjustment unit for adjusting and restricting the positions of the arc-shaped support plates. An unfolding component is provided between the two unfolding circular plates. The unfolding component includes two movement circular plates, which are rotatably connected to the corresponding unfolding circular plates. A linkage unit is provided between the movement circular plate and the corresponding unfolding circular plate. Six fixed long rods are fixedly arranged between the two movement circular plates in a circumferential array. Six sector-shaped long plates are also arranged between the two movement circular plates in a circumferential array. Six displacement sliding plates are slidably installed between the two movement circular plates in a circumferential array. A plurality of plowing blades are evenly fixedly arranged on each displacement sliding plate, and the plowing blades are slidably matched with the corresponding sector-shaped long plates.

[0005] Further, the axes of the two circular cover plates and the two unfolding circular plates are all on the same straight line. An unfolding slider one and an unfolding slider two are fixedly arranged on each arc-shaped support plate. The unfolding slider one is slidably matched with the corresponding unfolding circular plate, and the unfolding slider two is slidably matched with the corresponding circular cover plate. When the plurality of arc-shaped support plates in the same movement component are at the closest positions, the plurality of arc-shaped support plates are joined to form a complete ring plate.

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

[0007] Furthermore, an adjusting screw rod is rotatably mounted on the unfolding circular plate. The adjusting screw rod and the annular carriage form a screw pair. A first limiting spring and a second limiting spring are provided between the two sides of the annular carriage and the circular carriage respectively. Four limiting rods are also fixedly arranged in a circumferential array on the unfolding circular plate, and the limiting rods are used to limit the position of the circular carriage.

[0008] Furthermore, a plurality of first limiting blocks are fixedly arranged in a circumferential array on the annular carriage, and a plurality of second limiting blocks are also fixedly arranged in a circumferential array on the annular carriage. The first limiting blocks and the second limiting blocks have the same size. Limiting slot holes for mating with the first limiting blocks are provided on both the first unfolding slider and the second unfolding slider.

[0009] Furthermore, each linkage unit includes an annular linkage plate. The annular linkage plate 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 mated with the corresponding moving circular plate and unfolding circular plate respectively. Six linkage push rods are also fixedly arranged in a circumferential array on the circular carriage. The linkage push rods are slidably mated with the corresponding moving circular plate and unfolding circular plate when engaged. 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 by a fixed long rod. A plurality of bolts are provided between the sector-shaped long plate and the corresponding fixed long rod. The sector-shaped long plate and the corresponding fixed long rod are fixed by bolts. When the sector-shaped long plates are all engaged with the corresponding fixed long rods, a complete ring plate is formed among the six sector-shaped long plates.

[0011] Furthermore, a displacement screw rod is rotatably mounted between the two moving circular plates. Four displacement sliders are also evenly slidably mounted between the two moving circular plates. The displacement sliders and the displacement screw rod form a screw 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 is rotatably connected to the corresponding displacement slider.

[0012] Furthermore, when the sector-shaped long plates and the arc-shaped support plates are both at the position closest to the axis of the moving circular plate, the diameters of the unfolding circular plate, the circular cover plate, the ring plate formed by the six sector-shaped long plates, and the ring plate formed by the plurality of arc-shaped support plates are equal.

[0013] The beneficial effects of the present invention compared with the prior art are as follows: (1) By setting up the unfolding component, when transferring and transporting, the arc-shaped support plate can be made to contact the ground, thus preventing the plowing blade from directly contacting the ground, reducing equipment damage and ground damage. (2) By setting up the position adjustment unit, the position of the arc-shaped support plate in various states can be locked, thereby improving the stability of the arc-shaped support plate during operation. (3) Through the mutual cooperation of the unfolding component and the movement component, the device has a structure that can be unfolded and retracted, facilitating folding when not in use, reducing the occupied space, and being convenient for transportation and storage. (4) By setting up the movement component, the plowing blade can be effectively protected, and the attachments on the surface of the plowing blade can be effectively cleaned during the plowing process, thereby improving the optimization effect of the plowing blade on the soil. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0017] Figure 4 It is Figure 3 a partial enlarged schematic diagram at A in

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

[0019] Figure 6 It is Figure 5 a partial enlarged schematic diagram at B in

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

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

[0022] Figure 9 It is Figure 8 a partial enlarged schematic diagram at C in

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

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

[0025] Figure 12 It is Figure 11 a partial enlarged schematic diagram at D in

[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 - plowing blade; 109 - limiting ring plate; 110 - displacement slide plate; 111 - displacement lead screw; 112 - displacement slider; 113 - displacement motor; 114 - annular linkage plate; 115 - strip-shaped displacement plate; 116 - circular sliding frame; 117 - annular sliding frame; 118 - position adjusting lead screw; 119 - unfolding slider one; 120 - strip-shaped 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 - position adjusting motor; 128 - auxiliary motor; 129 - limiting spring one; 130 - limiting spring two; 131 - fixed long rod; 132 - limiting slot hole. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] Embodiment: Refer to Figures 1 - 12 , a soil optimization device for grain planting land, including a transfer frame 104, two moving components are arranged on the transfer frame 104, each moving component includes a circular cover plate 103 rotatably installed on the transfer frame 104, an unfolding circular plate 102 is fixedly installed on each circular cover plate 103, the axes of the two circular cover plates 103 and the two unfolding circular plates 102 are all on the same straight line, and a plurality of arc-shaped support plates 106 are slidably installed between the unfolding circular plate 102 and the corresponding circular cover plate 103 in a circumferential array. When a plurality of arc-shaped support plates 106 in the same moving component are at the closest positions, the plurality of arc-shaped support plates 106 are joined to form a complete ring plate.

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

[0030] A plurality of first limiting blocks 121 are fixedly arranged on the annular carriage 117 in a circumferential array, and a plurality of second limiting blocks 122 are also fixedly arranged on the annular carriage 117 in a circumferential array. The first limiting blocks 121 and the second limiting blocks 122 have the same size. Limiting slot holes 132 that cooperate with the first limiting blocks 121 are provided on both the first unfolding slider 119 and the second unfolding slider 123.

[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 at the position 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 contacts the limiting ring plate 109. At this time, the arc-shaped support plates 106 are all located at the position closest to the axis of the unfolding circular plate 102. The plurality of arc-shaped support plates 106 of the same moving assembly form a complete ring plate. The circular carriage 116 does not contact the limiting rods 126, and the end face of the circular carriage 116 contacts the circular cover plate 103. The second limiting blocks 122 do not contact the second unfolding slider 123 on the second unfolding slider 123, but the positions of the second limiting blocks 122 and the limiting slot holes 132 on the second unfolding slider 123 correspond. The first limiting blocks 121 do not contact the limiting slot holes 132 on the first unfolding slider 119.

[0032] Start the positioning motor 127 to drive the positioning lead screw 118 to rotate, so that the annular carriage 117 moves in a direction away from the positioning motor 127. Under the action of the first limiting spring 129 and the second limiting spring 130, the circular carriage 116 moves synchronously. Since the end face of the circular carriage 116 contacts the circular cover plate 103 at this time and cannot move further, that is, the first limiting spring 129 is compressed at this time, and the annular carriage 117 moves relative to the circular carriage 116. The second limiting blocks 122 on the annular carriage 117 move in a direction close to the limiting slot holes 132 on the second unfolding slider 123, and finally the second limiting blocks 122 and the limiting slot holes 132 on the second unfolding slider 123 are engaged. Under the action of the second limiting blocks 122, the second unfolding slider 123 cannot move further, that is, the position of the arc-shaped support plate 106 is locked.

[0033] Start the position adjustment motor 127 to drive the position adjustment lead screw 118 to rotate, so that the annular carriage 117 moves towards the position adjustment motor 127. Under the action of the first limit spring 129 and the second limit spring 130, the circular carriage 116 moves synchronously. Under the action of the strip-shaped 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 away from the axis of the unfolding circular plate 102 synchronously. Finally, the circular carriage 116 moves to contact the limit rod 126. Under the action of the limit rod 126, the circular carriage 116 cannot move any further. At this time, the first unfolding slider 119 moves to the position farthest from the axis of the unfolding circular plate 102, that is, the arc-shaped support plate 106 moves to the position farthest from the axis of the unfolding circular plate 102. At this time, the position of the first limit block 121 corresponds to the limit slot 132 on the first unfolding slider 119. The annular carriage 117 continues to move towards the position adjustment motor 127, and the second limit spring 130 is compressed. The annular carriage 117 moves relative to the circular carriage 116, and the first limit block 121 on the annular carriage 117 moves synchronously, that is, the first limit block 121 and the limit slot 132 on the first unfolding slider 119 are engaged. Finally, the first limit block 121 and the limit slot 132 on the first unfolding slider 119 are completely engaged. Under the action of the first limit block 121, the first unfolding slider 119 cannot move freely, that is, the arc-shaped support plate 106 cannot move freely.

[0034] An unfolding assembly is arranged between the two unfolding circular plates 102. The unfolding assembly includes two moving circular plates 101. The moving circular plates 101 are rotationally connected to the corresponding unfolding circular plates 102. A linkage unit is arranged between the moving circular plates 101 and the corresponding unfolding circular plates 102. Auxiliary motors 128 are fixedly installed on the unfolding circular plates 102. The output shafts of the auxiliary motors 128 are fixedly connected to the corresponding moving circular plates 101. The linkage units each include an annular linkage plate 114. The annular linkage plate 114 is slidably installed on the corresponding moving circular plate 101. A spring is arranged between the annular linkage plate 114 and the moving circular plate 101. Six linkage short rods 124 are fixedly arranged on the annular linkage plate 114 in a circumferential array. The linkage short rods 124 are slidably matched with the corresponding moving circular plates 101 and unfolding circular plates 102. Six linkage push rods 125 are also fixedly arranged on the circular carriage 116 in a circumferential array. When the linkage push rods 125 are engaged with the corresponding moving circular plates 101 and unfolding circular plates 102, they are slidably matched. 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.

[0035] When 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 in a joined state 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 an integral whole, that is, at this time, the unfolding circular plate 102 cannot rotate relative to the moving circular plate 101, and at this time, the linkage push rod 125 is not in contact with the corresponding linkage short rod 124.

[0036] When driving the circular carriage 116 to move in the direction close to the position adjustment motor 127, the linkage push rod 125 on the circular carriage 116 moves synchronously. The linkage push rod 125 contacts the linkage short rod 124 and pushes the linkage short rod 124 to move in the direction away from the circular cover plate 103. When the circular carriage 116 moves to contact the limit rod 126, the linkage short rod 124 disengages from the contact with the unfolding circular plate 102. At this time, the surface of the unfolding circular plate 102 that is farthest from the circular cover plate 103 and the end face of the linkage push rod 125 that is farthest from the circular cover plate 103 are in the same plane. The surface of the moving circular plate 101 that is closest to the circular cover plate 103 and the end face of the linkage short rod 124 that is closest to the circular cover plate 103 are in the same plane. At this time, start the auxiliary motor 128 to drive the moving circular plate 101 to rotate, and the unfolding circular plate 102 rotates relative to the moving circular plate 101.

[0037] 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 through the fixed long rods 131. Six sector-shaped long plates 105 are also arranged in a circumferential array between the two moving circular plates 101. A plurality of bolts 107 are arranged between the sector-shaped long plate 105 and the corresponding fixed long rod 131. The sector-shaped long plate 105 and the corresponding fixed long rod 131 are fixed through the bolts 107. When the sector-shaped long plates 105 are all joined with the corresponding fixed long rods 131, a complete ring plate is formed between the six sector-shaped long plates 105.

[0038] Six displacement slide plates 110 are also slidably installed in a circumferential array between two moving circular plates 101. The two ends of each displacement slide plate 110 are slidably engaged with the corresponding moving circular plate 101 respectively. A plurality of plowing blades 108 are uniformly and fixedly arranged on each displacement slide plate 110. The plowing blades 108 are slidably engaged with the corresponding sector-shaped long plates 105. A displacement lead screw 111 is rotatably installed between the two moving circular plates 101. The two ends of the displacement lead screw 111 are rotatably connected to the corresponding moving circular plates 101 respectively. A displacement motor 113 is fixedly installed on one of the two moving circular plates 101. The output shaft of the displacement motor 113 is fixedly connected to the displacement lead screw 111. Four displacement sliders 112 are also slidably installed uniformly between the two moving circular plates 101. The displacement sliders 112 and the displacement lead screw 111 form a screw pair. Strip-shaped displacement plates 115 are arranged between the displacement sliders 112 and the displacement slide plates 110. One end of each strip-shaped displacement plate 115 is rotatably connected to the corresponding displacement slide plate 110, and the other end of each strip-shaped displacement plate 115 is rotatably connected to the corresponding displacement slider 112.

[0039] In the initial position, the displacement sliders 112 are successively located at the positions farthest from the displacement motor 113, and the displacement slide plates 110 are all located at the positions closest to the axis of the displacement lead screw 111. At this time, the end face of the plowing blade 108 farthest from the displacement lead screw 111 and the arc surface of the sector-shaped long plate 105 farthest from the displacement lead screw 111 are on the same cylindrical surface.

[0040] Start the displacement motor 113 to drive the displacement lead screw 111 to rotate, which makes the displacement sliders 112 move synchronously in the direction close to the displacement motor 113. Under the action of the strip-shaped displacement plates 115, the displacement slide plates 110 move synchronously in the direction away from the axis of the displacement lead screw 111, and then the plowing blades 108 move synchronously in the direction away from the axis of the displacement lead screw 111. Finally, the displacement slide plates 110 move to the positions farthest from the axis of the displacement lead screw 111, which makes the plowing blades 108 fully unfold.

[0041] When the sector-shaped long plates 105 and the arc-shaped support plates 106 are both located at the positions closest to the axis of the moving circular plate 101, the diameters of the ring plates formed by the unfolding circular plate 102, the circular cover plate 103, the six sector-shaped long plates 105, and the ring plates formed by the plurality of arc-shaped support plates 106 are equal.

[0042] Working principle: The device is connected to the tractor through the transfer frame 104, and one of the two circular covers 103 is connected to the power source of the tractor. Then, the displacement motor 113 is started to drive the displacement lead screw 111 to rotate, so that the plowing blades 108 all move to the position farthest from the axis of the displacement lead screw 111, that is, the expansion of the plowing blades 108 is realized. Then, the two position adjustment motors 127 are started to make the two annular sliding frames 117 move away from each other, that is, to make the second limiting block 122 engage with the limiting slot holes 132 on the expansion slider two 123, so as to realize the locking of the position of the arc-shaped support plate 106. And at this time, under the action of the linkage short rod 124, the moving circular plate 101 and the expansion circular plate 102 are an integral body. The circular cover 103 is driven by the tractor to rotate, that is, the moving circular plate 101, the expansion circular plate 102, and the circular cover 103 rotate synchronously, so that the plowing blades 108 optimize the plowing of the soil.

[0043] When it is necessary to transfer and transport the device, the displacement motor 113 is started to make the plowing blades 108 all move to the position closest to the axis of the displacement lead screw 111. Then, the position adjustment motor 127 is started to make the circular sliding frame 116 and the annular sliding frame 117 move in the direction close to the position adjustment motor 127. Finally, the circular sliding frame 116 moves to contact the limiting rod 126. Under the action of the linkage push rod 125, the linkage short rod 124 disengages from the expansion circular plate 102. Under the action of the strip-shaped expansion plate 120, the expansion slider one 119 moves to the position farthest from the axis of the expansion circular plate 102. At this time, the arc-shaped support plate 106 moves to the position farthest from the axis of the expansion circular plate 102, that is, the expansion of the arc-shaped support plate 106 is realized, and the first limiting block 121 engages with the limiting slot holes 132 on the expansion slider one 119. Under the action of the first limiting block 121, the position of the arc-shaped support plate 106 at this time is fixed, that is, under the dragging of the transfer vehicle, the arc-shaped support plate 106 contacts the ground and moves, so as to prevent the plowing blades 108 from damaging the ground.

[0044] After plowing for a period of time, start 113 to make 108 move in the direction close to the axis of 111. 108 slides relative to 105. Under the action of 105, the attachments on the surface of 108 are automatically scraped off.

[0045] When it is necessary to replace the plowing blades 108, remove the bolt 107, so that the fan-shaped long plate 105 can be removed, and then it is convenient to replace and repair the plowing blades 108.

[0046] When it is impossible to move this device by a tractor in places with limited space, remove the transfer frame 104 on the circular cover plate 103, and by starting the auxiliary motor 128 on the unfolding plate 102, the unfolding plate 102 is rotated relative to the moving circular plate 101. By controlling the two auxiliary motors 128, the movement of this device can be controlled.

[0047] The present invention is not limited to the above specific embodiments. Those skilled in the art can make various changes starting from the above concepts without creative labor, and all fall within the protection scope of the present invention.

Claims

1. A soil optimization device for grain planting land, including a migration frame (104), characterized in that: Two motion components are arranged on the migration frame (104). Each motion component includes a circular cover plate (103) rotatably installed on the migration frame (104). Expansion circular plates (102) are fixedly installed on the circular cover plates (103). A plurality of arc-shaped support plates (106) are slidably installed in a circumferential array between the expansion circular plate (102) and the corresponding circular cover plate (103). The expansion circular plates (102) are also each provided with an adjustment unit for adjusting and restricting the position of the arc-shaped support plates (106). An expansion component is arranged between the two expansion circular plates (102). The expansion component includes two motion circular plates (101). The motion circular plates (101) are rotatably connected to the corresponding expansion circular plates (102). A linkage unit is arranged between the motion circular plates (101) and the corresponding expansion circular plates (102). Six fixed long rods (131) are fixedly arranged in a circumferential array between the two motion circular plates (101). Six sector-shaped long plates (105) are also arranged in a circumferential array between the two motion circular plates (101). Six displacement sliding plates (110) are slidably installed in a circumferential array between the two motion circular plates (101). A plurality of plowing blades (108) are uniformly fixedly arranged on the displacement sliding plates (110). The plowing blades (108) are slidably matched with the corresponding sector-shaped long plates (105).

2. The soil optimization device for grain planting land according to claim 1, characterized in that: The axes of the two circular cover plates (103) and the two expansion circular plates (102) are all on the same straight line. Expansion slider one (119) and expansion slider two (123) are fixedly arranged on the arc-shaped support plates (106). Expansion slider one (119) is slidably matched with the corresponding expansion circular plate (102). Expansion slider two (123) is slidably matched with the corresponding circular cover plate (103). When the plurality of arc-shaped support plates (106) in the same motion component are at the closest positions, the plurality of arc-shaped support plates (106) are joined to form a complete ring plate.

3. The soil optimization device for grain planting land according to claim 2, wherein: Each adjustment unit includes a circular sliding frame (116) and an annular sliding frame (117). The annular sliding frame (117) is slidably installed on the corresponding expansion circular plate (102). The circular sliding frame (116) is slidably installed on the annular sliding frame (117). A strip-shaped expansion plate (120) is arranged between the circular sliding frame (116) and the expansion slider one (119). One end of the strip-shaped expansion plate (120) is rotatably connected to the circular sliding frame (116), and the other end of the strip-shaped expansion plate (120) is rotatably connected to the expansion slider one (119). A limiting ring plate (109) is also fixedly installed on the expansion circular plate (102) for restricting the position of the expansion slider one (119).

4. The soil optimization device for grain planting land according to claim 3, characterized in that: A positioning screw rod (118) is rotatably installed on the unfolding circular plate (102). The positioning screw rod (118) and the annular sliding frame (117) form a screw pair. A first limiting spring (129) and a second limiting spring (130) are respectively arranged between the two sides of the annular sliding frame (117) and the circular sliding frame (116). Four limiting rods (126) are fixedly arranged on the unfolding circular plate (102) in a circumferential array, and the limiting rods (126) are used to limit the position of the circular sliding frame (116).

5. The soil optimization device for grain planting land according to claim 4, characterized in that: A plurality of first limiting blocks (121) are fixedly arranged on the annular sliding frame (117) in a circumferential array. A plurality of second limiting blocks (122) are also fixedly arranged on the annular sliding frame (117) in a circumferential array. The first limiting blocks (121) and the second limiting blocks (122) have the same size. Limiting slot holes (132) matching the first limiting blocks (121) are arranged on both the unfolding slider one (119) and the unfolding slider two (123).

6. The soil optimization device for grain planting land according to claim 5, wherein: Each linkage unit includes an annular linkage plate (114). The annular linkage plate (114) is slidably installed on the corresponding moving circular plate (101). Six linkage short rods (124) are fixedly arranged on the annular linkage plate (114) in a circumferential array. The linkage short rods (124) are slidably matched with the corresponding moving circular plate (101) and the unfolding circular plate (102). Six linkage push rods (125) are fixedly arranged on the circular sliding frame (116) in a circumferential array. When the linkage push rods (125) are engaged with the corresponding moving circular plate (101) and the unfolding circular plate (102), they are slidably matched. 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.

7. The soil optimization device for grain planting land according to claim 6, characterized in that: The two moving circular plates (101) are fixed by a fixed long rod (131). A plurality of bolts (107) are arranged between the sector-shaped long plate (105) and the corresponding fixed long rod (131). The sector-shaped long plate (105) and the corresponding fixed long rod (131) are fixed by the bolts (107). When the sector-shaped long plates (105) are all engaged with the corresponding fixed long rod (131), a complete ring plate is formed among the six sector-shaped long plates (105).

8. The soil optimization device for grain planting land according to claim 7, wherein: A displacement screw rod (111) is rotatably installed between the two moving circular plates (101). Four displacement sliders (112) are evenly slidably installed between the two moving circular plates (101). The displacement sliders (112) and the displacement screw rod (111) form a screw pair. Strip-shaped displacement plates (115) are arranged between the displacement sliders (112) and the displacement skateboards (110). One end of the strip-shaped displacement plate (115) is rotatably connected to the displacement skateboard (110), and the other end of the strip-shaped displacement plate (115) is rotatably connected to the corresponding displacement slider (112).

9. The soil optimization device for grain planting land according to claim 8, characterized in that: When the sector-shaped long plates (105) and the arc-shaped support plates (106) are both at the position closest to the axis of the moving circular plate (101), the diameters of the unfolding circular plate (102), the circular cover plate (103), the ring plate formed by the six sector-shaped long plates (105), and the ring plate formed by the plurality of arc-shaped support plates (106) are equal.

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