Seeding machine for agricultural planting

Abstract

The invention discloses a seeding machine for agricultural planting, and belongs to the technical field of seeding equipment, the seeding machine comprises a fixing frame, a downward moving sliding frame is slidably mounted on the fixing frame, by arranging a distance adjusting assembly, under the synergistic effect of X-shaped hinged plates, the seeding line spacing can be rapidly adjusted, it is ensured that the adjacent seeding line spacing is uniform and consistent, and the seeding machine adapts to the planting requirements of different crops; by arranging the seeding unit, the seeding efficiency and precision are remarkably improved, by arranging the ploughing unit, only soil near seeding rows can be locally crushed and slotted, the whole field does not need to be comprehensively ploughed, the power consumption and the operation time are remarkably reduced, meanwhile, damage to the soil structure is reduced, and the machine is suitable for protective agricultural tillage; according to the quantitative seeding device, quantitative seeding of seeds can be realized, the seeding quantity and spacing can be flexibly controlled by adjusting the rotating speed or replacing transfer grooves with different sizes, uniform seed distribution is ensured, and the problem of waste or non-uniform density is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of sowing equipment, in particular to a sowing machine for agricultural planting. Background Art

[0002] Traditional agricultural seeders have many limitations during the sowing process and are unable to meet the needs of modern agriculture for efficient and precise planting. First, the row spacing adjustment function of existing seeders is relatively simple, and is usually achieved through manual adjustment or a simple mechanical structure. Not only is the operation cumbersome, but it is also difficult to ensure the uniformity of the row spacing, resulting in insufficient sowing accuracy and affecting the consistency of crop growth. In addition, most existing equipment uses overall rotary tillage or plowing to prepare the land, which not only has high energy consumption, but also destroys the soil structure, causing unnecessary soil disturbance, especially in areas where comprehensive tillage is not required. Although some seeders currently have a local grooving function, the grooving depth and sowing position are difficult to accurately control, and there is a lack of a linkage adjustment mechanism with the sowing row spacing, resulting in low sowing efficiency. Therefore, the present invention provides a seeder for agricultural planting. Summary of the Invention

[0003] In view of the defects of the existing technology, the present invention provides a seeder for agricultural planting, which overcomes the problems of relatively single row spacing adjustment function, difficulty in ensuring the uniformity of row spacing, and unnecessary soil disturbance in areas where full cultivation is not required.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a seeder for agricultural planting, comprising a fixed frame, a lower slide is slidably mounted on the fixed frame, a distance adjustment assembly is provided on the lower slide, the distance adjustment assembly comprises two unfolding slides symmetrically slidably mounted on the lower slide, eight distance adjustment strips are evenly arranged between the two unfolding slides, an X-shaped hinge plate is provided between two adjacent distance adjustment strips, a separation slide is slidably mounted on the two unfolding slides, four position adjustment slides are slidably mounted on the separation slide, and the position adjustment slides slide with the corresponding distance adjustment strips respectively In coordination, the double-headed motor is provided with a tillage unit and a seeding unit. The tillage unit includes two dividing side plates and two U-shaped rotary tillage heads. The dividing side plates and the U-shaped rotary tillage heads are used to open sowing troughs. The seeding unit includes a pointed trough plate, a seed storage bin and a transfer trough plate. The seed storage bin is used to store seeds. A seed delivery channel is formed between the pointed trough plate and the transfer trough plate. A circular rotary block is rotatably installed on the transfer trough plate. A plurality of transfer troughs are arranged in a circular array on the circular rotary block. The transfer trough is used to quantitatively transport the seeds in the seed storage bin. The distance adjustment strip is also symmetrically rotatably installed with a soil covering pressure wheel.

[0005] Furthermore, an unfolding screw rod is symmetrically installed on the downward slide, and an unfolding long rod is fixedly installed on the unfolding slide. The unfolding long rod and the corresponding unfolding screw rod constitute a spiral pair. The end of the unfolding slide closest to the fixed frame is fixedly provided with an auxiliary strip plate, and the four distance adjustment strip plates closest to the same unfolding slide are slidably matched with the auxiliary strip plate corresponding to the unfolding slide.

[0006] Furthermore, the two ends of the adjacent X-shaped hinged plates are rotatably connected, and the ends of the X-shaped hinged plates are movably connected to the distance-adjusting strips respectively. The X-shaped hinged plates are used to make the distance between two adjacent distance-adjusting strips among the eight distance-adjusting strips the same. The distance-adjusting screw rods are also symmetrically installed on the lower slide for rotation. The two distance-adjusting strips located at the center position between the two unfolded slides respectively form a spiral pair with the corresponding distance-adjusting screw rods.

[0007] Furthermore, the two separation slides are slidably fitted together, and a positioning slide is slidably installed on the lower slide. The two separation slides are slidably fitted with the positioning slide. The two dividing side plates on the same positioning slide are symmetrically fixed on the positioning slide. The two U-shaped rotary tillers on the same positioning slide are rotatably installed on the positioning slide. The two U-shaped rotary tillers on the same positioning slide are both located between the corresponding two dividing side plates. Two clearance holes are provided on the distance adjustment strip to accommodate the movement of the U-shaped rotary tillers.

[0008] Furthermore, a gear box is fixedly installed on the positioning slide, and a transmission group 2 is arranged between the gear box and the corresponding two U-shaped rotary tilling heads. A transmission pulley is also rotatably installed on the positioning slide, and a transmission group 1 is arranged between the transmission pulley and the corresponding gear box. A spline long shaft 1 is rotatably installed on the separation slide, and the four transmission pulleys corresponding to the spline long shaft 1 all form a spline sliding fit with the spline long shaft 1.

[0009] Furthermore, the seed storage bin is fixedly mounted on the corresponding adjustment slide, and a lifting inclined plate is slidably mounted in the seed storage bin, and the lifting inclined plate is used to adjust the position of the seeds in the seed storage bin, and a linkage long rod is fixedly mounted on the lifting inclined plate, and a linkage square plate is fixedly mounted on the upper end of the linkage long rod, and an expansion slide 2 is slidably mounted on the separation slide, and the expansion slide 2 is slidably matched with the corresponding four linkage square plates, and a supplementary slide is also slidably mounted on the adjustment slide, and the expansion slide 2 is slidably matched with the supplementary slide.

[0010] Furthermore, the transfer trough plate is fixedly installed on the side of the corresponding seed storage bin, a notch is provided at the upper end of the seed storage bin, the circular rotating block is located at the notch position of the corresponding seed storage bin, the pointed trough plate slides with the adjustment slide and the transfer trough plate, the pointed trough plate and the seed storage bin on the same adjustment slide are respectively located on both sides of the transfer trough plate, and the distance adjustment strip and the adjustment slide are both provided with a clearance hole to accommodate the movement of the pointed trough plate.

[0011] Furthermore, a driven pulley is rotatably installed on the outer side of the seed storage bin, and a transmission group three is arranged between the driven pulley and the corresponding circular rotating block. A spline long shaft two is also rotatably installed on the separation slide, and the spline long shaft two and the corresponding four driven pulleys form a spline sliding fit. An expansion slide one is also slidably installed on the separation slide, and the expansion slide one slides in sliding fit with the upper ends of the corresponding four pointed groove plates. A feed slide is also slidably installed on the positioning slide, and the expansion slide one slides in sliding fit with the feed slide.

[0012] Furthermore, the soil-covering press wheel is located at the end of the distance-adjusting strip farthest from the fixed frame, the pointed groove plate is located between the dividing side plate and the soil-covering press wheel, and the soil-covering press wheels between two adjacent distance-adjusting strips are staggered. The soil-covering press wheels are used to cover the seeds with soil after sowing.

[0013] Compared with the prior art, the present invention has the following advantages: (1) By setting a distance adjustment component, the present invention can quickly adjust the sowing row spacing under the coordinated action of the X-shaped hinge plate, ensuring that the spacing between adjacent sowing rows is uniform and consistent, adapting to the planting needs of different crops, and significantly improving sowing efficiency and accuracy. (2) By setting a tillage unit, the present invention can only locally crush and groove the soil near the sowing row, without the need to fully plow the entire field, significantly reducing power consumption and operation time, while reducing damage to the soil structure, and is suitable for conservation agriculture. (3) By setting a seeding unit, the present invention can achieve quantitative sowing of seeds, and by adjusting the rotation speed or replacing transfer troughs of different sizes, the sowing amount and spacing can be flexibly controlled to ensure uniform seed distribution and avoid waste or uneven density problems. (4) By setting a lifting inclined plate, the present invention can automatically adjust the position according to seed consumption, maintain the continuity of seed supply, ensure the uninterrupted sowing process, and improve the continuity of operation. 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 side view of the overall structure of the present invention.

[0016] Figure 3 It is a structural schematic diagram of the downward sliding bracket of the present invention.

[0017] Figure 4 It is a structural schematic diagram of the X-shaped hinge plate of the present invention.

[0018] Figure 5 for Figure 4 A local enlarged schematic diagram of point A in the middle.

[0019] Figure 6 It is a structural schematic diagram of the position adjustment slide of the present invention.

[0020] Figure 7 This is a structural diagram of the present invention that supplements the slide plate.

[0021] Figure 8 It is a structural schematic diagram of the separation slide of the present invention.

[0022] Figure 9 It is a structural schematic diagram of one part of the spline major axis of the present invention.

[0023] Figure 10 It is a structural schematic diagram of the U-shaped rotary tiller of the present invention.

[0024] Figure 11 for Figure 10 A partial enlarged schematic diagram of point B in the middle.

[0025] Figure 12 It is a structural schematic diagram of the feed slide of the present invention.

[0026] Figure 13 It is a structural schematic diagram of the position adjustment slide of the present invention.

[0027] Figure 14 It is a structural schematic diagram of the pointed groove plate of the present invention.

[0028] Figure 15 It is a structural schematic diagram of the seed storage warehouse of the present invention.

[0029] Figure 16 for Figure 15 A partial enlarged schematic diagram of point C in the middle.

[0030] Figure 17 This is a structural diagram of the lifting inclined plate of the present invention.

[0031] Figure 18 for Figure 17 A local enlarged schematic diagram of point D in the middle.

[0032] Figure 19 It is a cross-sectional view of the structure of the positioning slide of the present invention.

[0033] Figure 20 for Figure 19 A partial enlarged schematic diagram of point E in the middle.

[0034] Reference numerals: 101-fixed frame; 102-downward sliding frame; 103-downward screw rod; 104-downward motor; 105-unfolding sliding frame; 106-unfolding long rod; 107-unfolding screw rod; 108-double-headed motor 1; 109-adjusting strip; 110-X-shaped hinged plate; 111-adjusting screw rod; 112-double-headed motor 2; 113-auxiliary strip; 114-positioning sliding frame; 115-unfolding slide plate 1; 116-positioning electric cylinder; 117-feeding sliding plate; 118-feeding electric cylinder; 119-supplementing sliding plate; 120-supplementing electric cylinder; 121-dividing side plate; 122-covering pressure wheel; 123-cultivating motor; 1 24-transfer motor; 125-yield hole 1; 126-pointed slot plate; 127-seed storage bin; 128-positioning slide; 129-spline long shaft 1; 130-separation slide; 131-transmission group 1; 132-yield hole 2; 133-U-shaped rotary tiller; 134-transmission pulley; 135-transmission group 2; 136-gear box; 137-expanding slide 2; 138-transfer slot plate; 139-spline long shaft 2; 140-auxiliary slide; 141-linkage square plate; 142-linkage long rod; 143-driven pulley; 144-circular rotating block; 145-transfer slot; 146-transmission group 3; 147-lifting inclined plate. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0036] Example: Reference Figures 1-20 A seeder for agricultural planting includes a fixed frame 101, a lowering slide 102 is slidably mounted on the fixed frame 101, a lowering screw rod 103 is rotatably mounted on the fixed frame 101, the lowering screw rod 103 and the lowering slide 102 form a spiral pair, a lowering motor 104 is fixedly mounted on the fixed frame 101, and the fixed frame 101 is fixedly mounted on the tractor by bolts. The movement of the seeder is achieved by the movement of the tractor. Starting the lowering motor 104 drives the lowering screw rod 103 to rotate, and the lowering slide 102 can move up and down relative to the fixed frame 101.

[0037] The lower slide 102 is provided with a distance adjustment component, which includes two unfolding slides 105 symmetrically slidably mounted on the lower slide 102, and unfolding screw rods 107 symmetrically rotatably mounted on the lower slide 102. An unfolding long rod 106 is fixedly mounted on the unfolding slide 105, and the unfolding long rod 106 and the corresponding unfolding screw rod 107 form a spiral pair. A double-headed motor 108 is fixedly mounted on the lower slide 102, and the output shafts at both ends of the double-headed motor 108 are fixedly connected to the corresponding unfolding screw rod 107 respectively. Starting the double-headed motor 108 drives the two unfolding screw rods 107 to rotate synchronously. Under the action of the unfolding long rod 106, the two unfolding slides 105 move away from each other or move towards each other.

[0038] Eight distance-adjusting strips 109 are evenly arranged between the two unfolding slides 105. The ends of the unfolding slides 105 closest to the fixed frame 101 are fixedly provided with auxiliary strips 113. The four distance-adjusting strips 109 closest to the same unfolding slide 105 slide in cooperation with the auxiliary strips 113 corresponding to the unfolding slide 105. An X-shaped hinge plate 110 is arranged between two adjacent distance-adjusting strips 109. The two ends of the adjacent X-shaped hinge plates 110 are rotatably connected. The ends of the X-shaped hinge plates 110 are respectively connected to the distance-adjusting strips 113. 09 movable connection, the X-shaped hinge plate 110 is used to make the distance between two adjacent distance-adjusting strips 109 among the eight distance-adjusting strips 109 the same, and the distance-adjusting screw rods 111 are also symmetrically installed on the lower slide 102. The two distance-adjusting strips 109 located at the center position between the two unfolding slides 105 respectively form a spiral pair with the corresponding distance-adjusting screw rods 111, and a double-headed motor 2 112 is also fixedly installed on the lower slide 102. The output shafts at both ends of the double-headed motor 2 112 are fixedly connected to the corresponding distance-adjusting screw rods 111 respectively.

[0039] In the initial position, the two distance-adjusting strips 109 located at the center of the two unfolding slides 105 are located at the closest position, that is, the distance-adjusting strips 109 engaged with the two distance-adjusting screw rods 111 are located at the closest position. At this time, under the action of the X-shaped hinge plate 110, the distance between the two adjacent distance-adjusting strips 109 is the minimum, and the two unfolding slides 105 are located at the farthest position.

[0040] Start the double-headed motor 108 to drive the two unfolding slides 105 to move away from each other, and the auxiliary strips 113 on the unfolding slide 105 move synchronously, and the auxiliary strips 113 move relative to the distance-adjusting strips 109. Then start the double-headed motor 2 112 to drive the two distance-adjusting screw rods 111 to rotate, so that the two distance-adjusting strips 109 engaged with the distance-adjusting screw rods 111 move away from each other. Under the action of the X-shaped hinged plate 110, the distance-adjusting strips 109 maintain the same spacing and move toward both sides of the double-headed motor 2 112. The distance-adjusting strips 109 slide relative to the corresponding auxiliary strips 113, thereby realizing the unfolding of the eight distance-adjusting strips 109, and the spacing of the unfolded distance-adjusting strips 109 is always the same.

[0041] The two separating slides 130 are slidably mounted on the two unfolding slides 105, and the two separating slides 130 slide in cooperation with each other, and the lower slide 102 is slidably mounted with a positioning slide 114, and the two separating slides 130 are slidably cooperated with the positioning slide 114, and the lower slide 102 is fixedly mounted with a positioning electric cylinder 116, and the piston rod end of the positioning electric cylinder 116 is fixedly connected to the positioning slide 114. When the unfolding slide 105 moves in the direction away from each other, the two separating slides 130 move in the direction away from each other, and the lengths of the positioning slide 114 and the auxiliary strip 113 are equal to the distance between the two unfolding slides 105 when they are closest. The positioning electric cylinder 116 is started to drive the positioning slide 114 to move downward, and the separating slide 130 on the positioning slide 114 moves downward synchronously, that is, the two separating slides 130 move downward synchronously, and the separating slide 130 slides relative to the unfolding slide 105.

[0042] Four positioning slides 128 are slidably mounted on the separation slide 130 , and the positioning slides 128 are slidably engaged with the corresponding distance adjustment strips 109 . When the separation slide 130 moves downward relative to the unfolding slide 105 , the four positioning slides 128 on the separation slide 130 move downward synchronously.

[0043] The double-headed motor 108 is provided with a tillage unit, which includes two dividing side plates 121 and two U-shaped rotary tilling heads 133. The dividing side plates 121 and the U-shaped rotary tilling heads 133 are used to open sowing grooves. The two dividing side plates 121 on the same adjusting slide 128 are symmetrically fixed on the adjusting slide 128. The two dividing side plates 121 on the same adjusting slide 128 are located on both sides of the adjusting slide 128. The two U-shaped rotary tilling heads 133 on the same adjusting slide 128 are rotatably installed on the adjusting slide 128. The two U-shaped rotary tilling heads 133 on the same adjusting slide 128 are both located between the corresponding two dividing side plates 121. The distance adjustment plate 109 is provided with two clearance holes 132 for accommodating the movement of the U-shaped rotary tilling heads 133.

[0044] The adjustment slide 128 is fixedly mounted with a gear box 136, and a transmission group 2 135 is provided between the gear box 136 and the corresponding two U-shaped rotary tillers 133. The transmission group 2 135 includes two pulleys and a belt. The two pulleys in the transmission group 2 135 are respectively fixedly mounted on the corresponding U-shaped rotary tillers 133. The belt in the transmission group 2 135 is provided directly on the two pulleys in the transmission group 2 135. The output end of the gear box 136 is fixedly connected to a pulley in the transmission group 2 135. A transmission pulley 134 is also rotatably mounted on the adjustment slide 128. A transmission group 131 is provided between the transmission pulley 134 and the corresponding gear box 136. The transmission group 131 includes A belt and a pulley, the pulley in the transmission group 131 is fixedly mounted on the input end of the gear box 136, the belt in the transmission group 131 is arranged between the pulley at the input end of the transmission group 2 135 and the corresponding transmission pulley 134, the gear box 136 is composed of two bevel gears, and the two bevel gears inside the gear box 136 are meshed to form a gear pair, the separation slide 130 is rotatably mounted with a spline long shaft 129, and the four transmission pulleys 134 corresponding to the spline long shaft 129 form a spline sliding fit with the spline long shaft 129, and the separation slide 130 is fixedly mounted with a tillage motor 123, and the output shaft of the tillage motor 123 is fixedly connected to the corresponding spline long shaft 129.

[0045] After the double-headed motor 108 completes the position adjustment of the unfolding slide 105, the double-headed motor 2 112 is started to adjust the position of the distance-adjusting strip 109 according to the required spacing. When the adjustment slide 128 moves relative to the separation slide 130, the transmission pulley 134 on the adjustment slide 128 slides relative to the corresponding spline long shaft 129. Then the lowering motor 104 is started to make the lowering slide 102 move downward as a whole, so that the lower surface of the distance-adjusting strip 109 approaches the surface of the land to be sown. Then the adjustment electric cylinder 116 is started to make the adjustment slide 114 move downward as a whole, and the parts on the adjustment slide 114 move downward synchronously. At this time, the dividing side plate 121 on the adjustment slide 128 moves downward synchronously, and the dividing side plate 121 contacts the surface of the soil to be sown. The adjustment slide 114 continues to move downward, and the dividing side plate 121 is inserted into the soil. The U-shaped rotary tiller 133 is also inserted into the soil, and the two tillage motors 123 are started at this time, and the transmission pulleys 134 rotate synchronously. Under the action of transmission group 131, transmission group 2 135, and gear box 136, the U-shaped rotary tiller 133 rotates synchronously, that is, the soil between the two dividing side plates 121 on the same adjustment slide 128 is crushed. According to the planting depth required for the seeds to be sown, the depth of the dividing side plate 121 inserted into the soil is adjusted by the adjustment electric cylinder 116. After the dividing side plate 121 and the U-shaped rotary tiller 133 move to the specified depth, the device is driven to move by a tractor. During the movement, the dividing side plate 121 realizes the division of the soil, and the U-shaped rotary tiller 133 between the two dividing side plates 121 realizes the crushing of the soil between the two dividing side plates 121, thereby facilitating subsequent sowing.

[0046] The double-headed motor 108 is provided with a seeding unit, which includes a pointed slot plate 126, a seed storage bin 127, and a transfer slot plate 138. The seed storage bin 127 is used to store seeds. A seed delivery channel is formed between the pointed slot plate 126 and the transfer slot plate 138. The seed storage bin 127 is fixedly mounted on the corresponding adjustment slide 128. A lifting inclined plate 147 is slidably installed in the seed storage bin 127. The lifting inclined plate 147 is used to adjust the position of the seeds in the seed storage bin 127. A linkage long rod 142 is fixedly mounted on the lifting inclined plate 147. The linkage long rod 142 is fixedly mounted on the lifting inclined plate 147. The upper end of the rod 142 is fixedly installed with a linkage square plate 141, and the linkage long rod 142 and the seed storage bin 127 are slidably matched. The separation slide 130 is slidably installed with an expansion slide 137, and the expansion slide 137 and the corresponding four linkage square plates 141 are slidably matched. The supplementary slide 119 is also slidably installed on the positioning slide 114, and the expansion slide 137 and the supplementary slide 119 are slidably matched. The supplementary electric cylinder 120 is fixedly installed on the positioning slide 114, and the piston rod end of the supplementary electric cylinder 120 is fixedly connected to the supplementary slide 119.

[0047] In the initial position, the supplementary slide 119 is located at the position closest to the supplementary electric cylinder 120. At this time, the lifting inclined plates 147 are all located at the position closest to the ground. When the two unfolding slides 105 move away from each other, under the action of the separation slide 130, the two unfolding slides 137 move away from each other. At this time, the unfolding slides 137 all slide relative to the supplementary slide 119. When adjusting the position of the distance-adjusting strip 109, the linkage square plate 141 corresponding to the distance-adjusting strip 109 slides relative to the corresponding unfolding slide 137. The supplementary electric cylinder 120 is started to drive the supplementary slide 119 to move downward, so that the two unfolding slides 137 137 move upward synchronously. The linkage square plates 141 on the unfolding slide 137 all move downward synchronously. Under the action of the linkage long rod 142, the lifting inclined plates 147 all move upward synchronously.

[0048] The transfer slot plate 138 is fixedly installed on the side of the corresponding seed storage bin 127. A notch is provided at the upper end of the seed storage bin 127. The circular rotating block 144 is located at the notch position of the corresponding seed storage bin 127. The pointed slot plate 126 slides with the adjustment slide 128 and the transfer slot plate 138. The pointed slot plate 126 and the seed storage bin 127 on the same adjustment slide 128 are respectively located on both sides of the transfer slot plate 138. The distance adjustment strip 109 and the adjustment slide 128 are both provided with a clearance hole 125 to accommodate the movement of the pointed slot plate 126. The upper end of the seed storage bin 127 is also slidably installed with an auxiliary slide 140.

[0049] A circular rotating block 144 is rotatably installed on the transfer groove plate 138, and a plurality of transfer grooves 145 are arranged in a circular array on the circular rotating block 144. The transfer grooves 145 are used to quantitatively transport the seeds in the seed storage bin 127. A driven pulley 143 is rotatably installed on the outer side of the seed storage bin 127. A transmission group three 146 is arranged between the driven pulley 143 and the corresponding circular rotating block 144. The transmission group three 146 includes a pulley and a belt. The pulley in the transmission group three 146 is fixedly installed on the circular rotating block 144, and the belt in the transmission group three 146 is arranged between the driven pulley 143 and the pulley on the circular rotating block 144. A spline long shaft 2 139 is also rotatably installed on the separation slide 130. The spline long shaft 2 139 and the corresponding four driven pulleys 143 form a spline sliding fit. The separation slide 130 is also fixedly installed with a transfer motor 124, and the output shaft of the transfer motor 124 is fixedly connected to the corresponding spline long shaft 2 139.

[0050] At the initial position, the seed storage bin 127 is full of seeds, and the uppermost position of the seeds in the seed storage bin 127 is located below the upper end of the adjustment slide 114, thereby preventing the seeds from falling directly out of the transfer slot plate 138. At this time, the lifting inclined plate 147 is located at the lowermost end of the seed storage bin 127, that is, the replenishing slide 119 is located at the position closest to the replenishing electric cylinder 120, and the two transfer motors 124 are started to drive the two spline long shafts 139 to rotate synchronously. Under the action of the transmission group 3 146, the circular rotating block 144 rotates synchronously. During the rotation of the circular rotating block 144, when the transfer slot 145 contacts the seeds in the seed storage bin 127, the seeds will fall into the transfer slot 145. Under the action of the transfer slot 145, the circular rotating block 1 44 carries the seeds in the seed storage bin 127 and rotates, that is, the transfer trough 145 takes out the seeds in the seed storage bin 127 in a quantitative manner. When the transfer trough 145 rotates the other side of the transfer trough plate 138, the seeds in the transfer trough 145 fall down. As the transfer trough 145 takes out the seeds in the seed storage bin 127 in a quantitative manner, the replenishing electric cylinder 120 is started to move the replenishing slide 119 upward, so that the lifting inclined plate 147 moves upward synchronously, thereby ensuring that the position of the top end of the seeds in the seed storage bin 127 remains unchanged at all times, thereby ensuring that the transfer trough 145 can continuously take out seeds. When the seed storage amount in the seed storage bin 127 is insufficient, the seeds can be replenished to the inside of the seed storage bin 127 by sliding the auxiliary slide 140.

[0051] An unfolding slide 115 is also slidably mounted on the separation slide 130, and the unfolding slide 115 slides in cooperation with the upper ends of the corresponding four pointed groove plates 126. A feed slide 117 is also slidably mounted on the positioning slide 114, and the unfolding slide 115 slides in cooperation with the feed slide 117. A feed electric cylinder 118 is fixedly mounted on the positioning slide 114, and the piston rod end of the feed electric cylinder 118 is fixedly connected to the feed slide 117.

[0052] In the initial position, the feed slide 117 is at the farthest position from the feed electric cylinder 118. At this time, the pointed slot plates 126 are all at the closest position to the distance adjusting strip 109. The feed electric cylinder 118 is started to drive the feed slide 117 to move downward. Under the action of the unfolding slide 115, the pointed slot plates 126 all move downward synchronously. The pointed slot plates 126 slide relative to the transfer slot plates 138. The pointed slot plates 126 move at the position of the give way hole 125 on the positioning slide 128. The pointed slot plates 126 continue to move downward. The pointed slot plates 126 move at the position of the give way hole 125 on the distance adjusting strip 109. Under the action of the give way hole 125, the movement of the pointed slot plates 126 is made to give way.

[0053] When the unfolding slide 105 moves in the direction away from each other, the unfolding slide plate 115 moves synchronously in the direction away from each other. When the position of the distance-adjusting strip 109 is adjusted, the pointed groove plate 126 moves relative to the corresponding unfolding slide plate 115. After the dividing side plate 121 and the U-shaped rotary tiller 133 complete the crushing of the soil during the movement, the feed electric cylinder 118 is started to drive the feed slide plate 117 to move downward, so that the pointed groove plate 126 is inserted into the soil. According to the planting depth requirement of the seed, the lower end of the pointed groove plate 126 is moved to the specified depth. Under the action of the tractor, the pointed groove plate 126 realizes grooving of the soil during the movement, and at this time, the two transfer motors 124 are started. Under the action of the circular rotating block 144, the transfer trough 145 transfers the seeds in the seed storage bin 127 to the seed delivery channel formed by the transfer trough plate 138 and the pointed groove plate 126. The seeds entering the seed delivery channel enter the specified depth position of the soil along the pointed groove plate 126, thereby realizing automatic sowing.

[0054] It is worth noting that the rotation speed of the circular rotating block 144 can be controlled according to the sowing requirements, so as to control the sowing spacing at a constant travel speed. The single sowing amount can also be adjusted by replacing the circular rotating block 144 with a transfer groove 145 of different sizes.

[0055] The soil-covering pressure wheel 122 is also symmetrically installed on the distance-adjusting strip 109 for rotation. The soil-covering pressure wheel 122 is located at the end of the distance-adjusting strip 109 farthest from the fixed frame 101. The pointed groove plate 126 is located between the dividing side plate 121 and the soil-covering pressure wheel 122. The soil-covering pressure wheel 122 between two adjacent distance-adjusting strips 109 is staggered. The soil-covering pressure wheel 122 is used to cover the seeds after sowing.

[0056] Working principle: The fixed frame 101 is fixedly installed at the rear of the tractor, and the movement of the device is realized by the movement of the tractor. When sowing, according to the sowing spacing requirements, the double-headed motor 108 is first started to adjust the distance between the two unfolding slides 105, and the parts on the unfolding slides 105 move synchronously. Then the double-headed motor 2 112 is started to adjust the distance between the distance adjusting strips 109, that is, the distance adjusting strips 109 are unfolded, and the parts on the distance adjusting strips 109 move synchronously.

[0057] After completing the adjustment of the position of the distance adjusting strip 109, the downward movement motor 104 is started so that the lower surface of the distance adjusting strip 109 is close to the top of the soil to be sown. At this time, the soil covering pressure wheel 122 on the distance adjusting strip 109 contacts the soil surface, and then the positioning electric cylinder 116 is started to move the positioning slide 114 downward, that is, the separation slide 130 moves downward, and the positioning slide 128 on the separation slide 130 moves downward synchronously. The dividing side plate 121 and the U-shaped rotary tiller 133 on the positioning slide 128 both move downward, and the tillage motor 123 is started to drive the U-shaped rotary tiller 133 to move and rotate synchronously, finally making the dividing side plate 121 move to the specified depth, and the U-shaped rotary tiller 133 also moves to the specified depth synchronously, and then the dividing side plate 121 is used to divide the soil through the tractor, and under the action of the U-shaped rotary tiller 133, the soil between the two dividing side plates 121 is crushed.

[0058] Then, the feed electric cylinder 118 is started to move the feed slide 117 downward, that is, the pointed slot plate 126 is moved downward synchronously, and finally the lower end of the pointed slot plate 126 is moved to the specified depth for seed planting. During the movement of the tractor, the pointed slot plate 126 realizes grooving the soil broken by the U-shaped rotary tiller 133, and at the same time, the two transfer motors 124 are started to make the circular rotating blocks 144 rotate synchronously. Under the action of the transfer trough 145, the seeds in the seed storage bin 127 are quantitatively transferred to the space between the pointed slot plate 126 and the transfer slot plate 138 to form a seed storage bin. In the seed delivery channel formed, the seeds entering the seed delivery channel fall along the pointed groove plate 126 to the lower end of the pointed groove plate 126, that is, the seeds are sown to the specified depth. During the sowing process, the supplementary electric cylinder 120 is started to make the supplementary slide plate 119 move downward, so that the lifting inclined plate 147 moves downward synchronously, thereby ensuring that the transfer groove 145 can always transfer the seeds in the seed storage bin 127 in a quantitative manner. After the pointed groove plate 126 completes the grooving and sowing of the seeds, the covering pressure wheel 122 passes through the grooved position of the pointed groove plate 126 to cover the sown seeds with soil.

[0059] The present invention is not limited to the above-mentioned specific embodiments. Various modifications made by technicians in the relevant technical field based on the above-mentioned conception without creative work are all within the scope of protection of the present invention.

Claims

1. A seed drill for agricultural planting, comprising a fixed frame (101), a downward sliding frame (102) being slidably mounted on the fixed frame (101), characterized in that: The lower moving slide (102) is provided with a distance adjustment component, which includes two unfolding slides (105) symmetrically slidably mounted on the lower moving slide (102), eight distance adjustment strips (109) are evenly arranged between the two unfolding slides (105), an X-shaped hinge plate (110) is arranged between two adjacent distance adjustment strips (109), a separation slide (130) is slidably mounted on the two unfolding slides (105), four position adjustment slides (128) are slidably mounted on the separation slide (130), and the position adjustment slides (128) are respectively slidably matched with the corresponding distance adjustment strips (109), and a double-headed motor (108) is provided with a tillage unit and a sowing unit, and the tillage unit includes two split side The plate (121) and two U-shaped rotary tillage heads (133) are divided into side plates (121) and U-shaped rotary tillage heads (133) for opening a sowing trough. The seeding unit includes a pointed trough plate (126), a seed storage bin (127), and a transfer trough plate (138). The seed storage bin (127) is used to store seeds. A seed delivery channel is formed between the pointed trough plate (126) and the transfer trough plate (138). A circular rotating block (144) is rotatably mounted on the transfer trough plate (138). A plurality of transfer troughs (145) are arranged in a circumferential array on the circular rotating block (144). The transfer trough (145) is used to quantitatively transport the seeds in the seed storage bin (127). A soil covering pressure wheel (122) is also symmetrically rotatably mounted on the spacing strip plate (109).

2. The agricultural planting seeder according to claim 1, characterized in that: The downward moving slide (102) is symmetrically rotatably mounted with an unfolding screw rod (107), and the unfolding slide (105) is fixedly mounted with an unfolding long rod (106). The unfolding long rod (106) and the corresponding unfolding screw rod (107) form a spiral pair, and the end of the unfolding slide (105) closest to the fixed frame (101) is fixedly provided with an auxiliary strip (113), and the four distance adjustment strips (109) closest to the same unfolding slide (105) are slidably matched with the auxiliary strips (113) corresponding to the unfolding slide (105).

3. The agricultural planting seeder according to claim 2, characterized in that: The two ends of the adjacent two X-shaped hinged plates (110) are rotatably connected, and the ends of the X-shaped hinged plates (110) are respectively movably connected to the distance-adjusting strips (109). The X-shaped hinged plates (110) are used to make the distances between two adjacent distance-adjusting strips (109) in the eight distance-adjusting strips (109) the same. The lower slide (102) is also symmetrically rotatably mounted with a distance-adjusting screw rod (111). The two distance-adjusting strips (109) located at the center between the two unfolding slides (105) respectively form a spiral pair with the corresponding distance-adjusting screw rod (111).

4. The agricultural planting seeder according to claim 3, characterized in that: The two separation slides (130) are slidably matched with each other, and a positioning slide (114) is slidably mounted on the lower slide (102). The two separation slides (130) are slidably matched with the positioning slide (114). The two dividing side plates (121) on the same positioning slide (128) are symmetrically fixedly mounted on the positioning slide (128). The two U-shaped rotary tillers (133) on the same positioning slide (128) are rotatably mounted on the positioning slide (128). The two U-shaped rotary tillers (133) on the same positioning slide (128) are both located between the corresponding two dividing side plates (121). The distance adjustment strip (109) is provided with two second clearance holes (132) for accommodating the movement of the U-shaped rotary tillers (133).

5. The agricultural planting seeder according to claim 4, characterized in that: The positioning slide (128) is fixedly mounted with a gear box (136), and a transmission group 2 (135) is provided between the gear box (136) and the corresponding two U-shaped rotary tillers (133). The positioning slide (128) is also rotatably mounted with a transmission pulley (134), and a transmission group 1 (131) is provided between the transmission pulley (134) and the corresponding gear box (136). The separation slide (130) is rotatably mounted with a spline long shaft 1 (129), and the four transmission pulleys (134) corresponding to the spline long shaft 1 (129) all form a spline sliding fit with the spline long shaft 1 (129).

6. The agricultural planting seeder according to claim 5, characterized in that: The seed storage bin (127) is fixedly mounted on the corresponding adjustment slide (128), and a lifting inclined plate (147) is slidably mounted in the seed storage bin (127). The lifting inclined plate (147) is used to adjust the position of the seeds in the seed storage bin (127). A linkage long rod (142) is fixedly mounted on the lifting inclined plate (147), and a linkage square plate (141) is fixedly mounted on the upper end of the linkage long rod (142). The separation slide (130) is slidably mounted with a second unfolding slide (137), and the second unfolding slide (137) and the corresponding four linkage square plates (141) are slidably matched. A supplementary slide (119) is also slidably mounted on the adjustment slide (114), and the second unfolding slide (137) is slidably matched with the supplementary slide (119).

7. The agricultural planting seeder according to claim 6, characterized in that: The transfer groove plate (138) is fixedly mounted on the side of the corresponding seed storage bin (127), the upper end of the seed storage bin (127) is provided with a notch, the circular rotating block (144) is located at the notch position of the corresponding seed storage bin (127), the pointed groove plate (126) is slidably matched with the adjustment slide (128) and the transfer groove plate (138), the pointed groove plate (126) and the seed storage bin (127) on the same adjustment slide (128) are respectively located on both sides of the transfer groove plate (138), and the distance adjustment strip (109) and the adjustment slide (128) are both provided with a clearance hole (125) for accommodating the movement of the pointed groove plate (126).

8. The agricultural planting seeder according to claim 7, characterized in that: The outer side of the seed storage bin (127) is rotatably mounted with a driven pulley (143), and a transmission group three (146) is provided between the driven pulley (143) and the corresponding circular rotating block (144). The separation slide (130) is also rotatably mounted with a spline long shaft two (139), and the spline long shaft two (139) and the corresponding four driven pulleys (143) form a spline sliding fit. The separation slide (130) is also slidably mounted with an unfolding slide one (115), and the unfolding slide one (115) and the upper end of the corresponding four pointed groove plates (126) are slidably fitted. The adjustment slide (114) is also slidably mounted with a feed slide (117), and the unfolding slide one (115) is slidably fitted with the feed slide (117).

9. The agricultural planting seeder according to claim 8, characterized in that: The soil-covering pressure wheel (122) is located at the end of the distance-adjusting strip (109) farthest from the fixed frame (101), the pointed groove plate (126) is located between the dividing side plate (121) and the soil-covering pressure wheel (122), and the soil-covering pressure wheel (122) between two adjacent distance-adjusting strips (109) is staggered. The soil-covering pressure wheel (122) is used to cover the seeds with soil after sowing.

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