Automatic seedling lifting machine

Abstract

The invention relates to the technical field of seedling raising equipment, in particular to an automatic seedling lifting machine which comprises a traction rack, a single power source and a soil inserting and seedling prying linkage mechanism. The single power source is mounted on the traction rack and provides power for the soil inserting and seedling prying linkage mechanism; the soil inserting and seedling prying linkage mechanism comprises a hanging bracket, a shovel plate, a prying claw combination and an anti-tilting rolling push plate, the top end of the hanging bracket is fixedly connected with the right end side of the traction rack, the bottom end of the hanging bracket extends to the lower portion of the traction rack and is fixedly connected with the shovel plate, the advancing end of the shovel plate is provided with a sharp part, and the prying claw combination is fixedly connected with the shovel plate. The prying claw combination is hinged to the follow-up end of the shovel plate and is in transmission connection with the single power source, a rolling space formed by the anti-tilting rolling push plate and the shovel plate can periodically contract and expand along with the deflection action, and blocky soil attached to the roots of nursery stocks can be efficiently crushed in cooperation with the high-frequency soil vibration action of the prying claw combination; the seedling-soil separation rate is improved compared with that of existing equipment, and manpower cleaning investment is reduced.

Description

Technical Field

[0001] This invention relates to the field of seedling equipment technology, and in particular to an automated seedling lifting machine. Background Technology

[0002] In the seedling cultivation and transplanting industry, seedling lifting is a crucial step connecting seedling cultivation and subsequent transplanting. The quality of this work directly affects the survival rate of the seedlings, while efficiency is linked to the industry's planting costs and the progress of large-scale development. With the improvement of modern agricultural mechanization, automated seedling lifting machines are gradually replacing traditional manual methods, becoming one of the core pieces of equipment in large-scale seedling planting bases. These machines typically integrate functions such as soil insertion, seedling prying, and seedling-soil separation, completing the lifting operation through the coordinated operation of mechanical structures. This effectively reduces the intensity of manual labor and improves the standardization of seedling lifting operations.

[0003] Existing automated seedling lifting machines still have many shortcomings in actual operation. On the one hand, during the lifting process, the seedlings are prone to falling to one side of the traction frame due to the combined effects of the force of the shovel inserting into the soil, the prying (shaking off the soil around the roots for easier transfer), and the disturbance caused by the movement of the traction frame. This requires frequent manual cleaning, which is labor-intensive. On the other hand, the soil attached to the roots of the seedlings is not broken up effectively after lifting, which means that the soil needs to be cleaned manually in the subsequent seedling picking stage, thus restricting the efficiency improvement of the overall seedling lifting process. Summary of the Invention

[0004] To address the above problems, the present invention provides the following technical solution: An automated seedling lifting machine includes a traction frame, a single power source, and a soil-inserting and seedling-prying linkage mechanism. The single power source is installed on the traction frame and provides power to the soil-inserting and seedling-prying linkage mechanism. The soil-inserting and seedling-prying linkage mechanism includes a hanger, a shovel plate, a prying claw assembly, and an anti-tipping and rolling push plate. The top of the hanger is fixedly connected to the right side of the traction frame, and the bottom extends to the bottom of the traction frame and is fixedly connected to the shovel plate. The forward end of the shovel plate has a pointed part. The prying claw assembly is hinged to the following end of the shovel plate and is connected to the single power source. The single power source drives the prying claw assembly to swing up and down around its hinge end to realize seedling prying and soil vibration. The anti-tipping rolling push plate is hinged to the right end of the hanger, and its hinged end is connected to the single power source through a transmission assembly. The single power source drives the anti-tipping rolling push plate to deflect intermittently away from the right end of the traction frame in order to prevent the seedlings from falling to the traction frame side during the seedling lifting process. A rolling space is formed between the hinged end of the anti-tipping rolling pusher and the top surface of the shovel plate. The rolling space changes in size periodically as the anti-tipping rolling pusher deflects. A vent is provided on the shovel plate at the deflection position relative to the anti-tipping rolling pusher.

[0005] Preferably, the pointed portion has beveled edges on both sides extending toward the following end.

[0006] Preferably, the forward end of the anti-tipping and rolling pusher plate is provided with an arc-shaped material guiding area, which is curved toward the hanger, and its following end is provided with a horizontal pushing area, the height of which is close to the height of the hanger.

[0007] Preferably, the single power source includes a gearbox fixed on the traction frame, the output end of the gearbox is connected to a power output shaft, an eccentric wheel is installed at the end of the power output shaft, a row of bushings is installed on the following end of the shovel, the pry bar assembly includes a synchronous shaft rotatably connected in the bushings, and a plurality of pry bars installed on the synchronous shaft, a connecting rod structure is installed on the eccentric shaft of the eccentric wheel, one end of the connecting rod structure is hinged to the eccentric wheel, and the other end is hinged to the synchronous shaft.

[0008] Preferably, the single power source further includes a mounting base installed on the left end of the hanger, a bearing mounted on the mounting base, a drive bevel gear mounted on the synchronous shaft, and a transmission assembly including a relay shaft mounted on the bearing. The relay shaft extends along the left end of the hanger towards the following end of the shovel plate and is equipped with a driven bevel gear, which meshes with the drive bevel gear. The other end of the relay shaft extends towards the middle of the hanger and is equipped with a drive sprocket. A left-right interconnected notch is provided between the hinged end of the anti-tipping and crushing push plate and the middle of the hanger. A chain shaft is installed on the notch of the anti-tipping and crushing push plate, and a driven sprocket is mounted on the chain shaft. The drive sprocket and the driven sprocket are driven by a chain.

[0009] Preferably, a rubber pad is installed on the right side of the hinge end of the anti-tipping rolling push plate, and the rubber pad protrudes into the rolling space.

[0010] Preferably, the opening is rectangular, with one long end close to the notch and the other long end close to the synchronous shaft.

[0011] Preferably, a stepped groove is formed on the top surface of the shovel plate near the outlet. A rubber liner is hinged in the stepped groove, and a spring pad is filled in the stepped groove. The bottom surface of the rubber liner is elastically supported on the spring pad, and the elasticity of the spring pad makes the rubber liner form a floating buffer surface of the rolling space. The floating buffer surface and the rubber pressure pad correspond to each other vertically. The pressure sensor is disposed in the stepped groove relative to the bottom surface of the rubber liner.

[0012] Preferably, it also includes an intelligent control module, which is electrically connected to the pressure sensor and the single power source respectively; the intelligent control module has a preset reasonable pressure range corresponding to different soil types and seedling specifications, and the intelligent control module is used to receive the pressure signal transmitted by the pressure sensor and compare the pressure signal with the preset reasonable pressure range.

[0013] Preferably, the right end of the shovel plate is provided with an upwardly curved guide portion, and the top of the guide portion is provided with a rubber sleeve, which gradually slopes downward from the forward end to the follow end.

[0014] The advantages of this invention compared to the prior art are: By setting up a single-power-source driven soil-inserting and seedling-prying linkage mechanism, combined with the coordinated action of the transmission components, the synchronous and precise operation of multiple actions such as seedling prying, soil vibration, anti-tipping, and compaction is achieved. This fundamentally solves the industry pain points of existing seedling-lifting equipment, such as asynchronous multiple actions and excessive manual intervention. Among them, the anti-tipping compaction push plate can precisely prevent seedlings from falling towards the traction frame through intermittent deflection, avoiding damage and work interruption caused by interference between seedlings and equipment components, and significantly reducing labor input costs. The compaction space formed by the anti-tipping compaction push plate and the shovel plate can periodically contract and expand with the deflection action, combined with the high-frequency action of the prying claw combination. The vibrating action efficiently breaks up clumps of soil attached to the roots of seedlings, improving the seedling-soil separation rate compared to existing equipment, reducing manual cleaning input, and lowering labor intensity. In addition, the multi-functional linkage of multiple actuators driven by a single power source greatly simplifies the power transmission chain, reduces the number of power sources and transmission components, lowers the equipment failure rate compared to existing multi-power source equipment, and reduces the overall weight and manufacturing cost of the equipment. It is suitable for various complex planting scenarios such as greenhouses and mountainous areas. It provides strong support for the intensive and large-scale development of seedling planting bases and has significant economic value and industry promotion significance. Attached Figure Description

[0015] Figure 1 A schematic diagram from a first-view perspective of an automated seedling lifting machine provided for an embodiment of the present invention; Figure 2 An automated seedling lifting machine provided for embodiments of the present invention comprises... Figure 1 The diagram is presented from the perspective of the follow-up end, and the seedlings are shown in the diagram. Figure 3 An automated seedling lifting machine provided for embodiments of the present invention comprises... Figure 2 Enlarged schematic diagram of part A; Figure 4 A schematic diagram of the planar structure of an automated seedling lifting machine from the following end perspective, provided for an embodiment of the present invention; Figure 5A schematic diagram of the front end of an automated seedling lifting machine provided for an embodiment of the present invention; Figure 6 An automated seedling lifting machine provided for embodiments of the present invention comprises... Figure 5 Enlarged schematic diagram of section B; Figure 7 This is a schematic plan view of an automated seedling lifting machine provided for an embodiment of the present invention, showing the structure of the stepped groove, rubber lining, and spring pad after the shovel plate is cut open from the opening.

[0016] In the diagram: 1. Traction frame; 2. Hanger; 3. Shovel plate; 4. Claw assembly; 5. Anti-tipping and rolling push plate; 6. Pointed part; 7. Transmission assembly; 8. Rolling space; 9. Exit; 10. Bevel; 11. Arc-shaped guide area; 12. Horizontal pushing area; 13. Gearbox; 14. Power output shaft; 15. Bushing; 16. Synchronous shaft; 17. Claw; 18. Eccentric wheel; 19. Linkage structure; 20. Mounting seat; 21. Relay shaft; 22. Driving bevel gear; 23. Driven bevel gear; 24. Driving sprocket; 25. Notch; 26. Chain shaft; 27. Driven sprocket; 28. Rubber pressure pad; 29. ​​Stepped groove; 30. Rubber liner; 31. Spring pad; 32. Guide part; 33. Rubber sleeve; 34. Pressure sensor. Detailed Implementation

[0017] The above and other embodiments and advantages of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] In one implementation, such as Figures 1-7 As shown: This embodiment provides an automated seedling lifting machine, including a traction frame 1, a single power source, and a soil-inserting and seedling-prying linkage mechanism. The single power source is installed on the traction frame 1 to provide power to the soil-inserting and seedling-prying linkage mechanism. The soil-inserting and seedling-prying linkage mechanism includes a hanger 2, a shovel plate 3, a prying claw assembly 4, and an anti-tipping and rolling push plate 5. The top end of the hanger 2 is fixedly connected to the right side of the traction frame 1, and the bottom end extends to the bottom of the traction frame 1 and is fixedly connected to the shovel plate 3. The forward end of the shovel plate 3 is provided with a pointed part 6. The prying claw assembly 4 is hinged to the rear end of the shovel plate 3 opposite to the forward end and is connected to the single power source. The single power source drives the prying claw assembly 4 to swing up and down around its hinge end to realize seedling prying and soil vibration. The anti-tipping rolling push plate 5 is hinged to the right end of the hanger 2, and its hinged end is connected to the single power source through the transmission component 7. The single power source drives the anti-tipping rolling push plate 5 to deflect intermittently away from the right end of the traction frame 1 to prevent the seedlings from falling to the side of the traction frame 1 during the seedling lifting process. A rolling space 8 is formed between the hinged end of the anti-tipping rolling pusher 5 and the top surface of the shovel plate 3. A pressure sensor 34 is installed in the rolling space 8. The rolling space 8 changes in size and periodically as the anti-tipping rolling pusher 5 deflects. A vent 9 is provided on the shovel plate 3 at the deflection position relative to the anti-tipping rolling pusher 5.

[0019] In use, the traction frame 1 is installed on the traction equipment (such as an agricultural hand-held tractor). The external traction equipment drives the traction frame 1 forward. The following end of the traction frame 1 is supported by casters to generate recoil force in the soil. The input end of the single power source is connected to the power source of the traction equipment via a connecting shaft and is simultaneously driven synchronously. Driven by the single power source, the pointed part 6 of the forward end of the shovel 3 cuts into the soil. As the shovel 3 moves forward, it pries the roots of the seedlings out of the soil, causing the seedlings or the roots to move backward along the top surface of the shovel 3. The prying claw assembly 4 swings up and down frequently around the hinge end under the synchronous drive of the single power source, completing the prying of the seedlings and the initial vibration of the soil. During this process, the anti-tipping rolling pusher 5 moves away from the traction frame 1 under the drive of the single power source. When the seedlings tend to fall towards the traction frame 1 due to the disturbance of the operation, the anti-falling rolling push plate 5 can directly prevent the seedlings from falling onto the traction frame 1. Instead, the plate surface is used to push the seedlings to the right or to fall down by deflecting away from the right side of the traction frame 1. At this time, when the anti-falling rolling push plate 5 deflects left and right intermittently, the rolling space 8 formed by it and the side of the shovel plate 3 will periodically increase or decrease. When the roots of the seedlings pass through the rolling space 8, the squeezing force generated by the space contraction can crush the clods of soil remaining at the roots. The crushed soil falls directly into the soil of the work site through the sluice gate 9, reducing the labor intensity of subsequent cleaning. Even if the seedlings are pushed to the right and fall down, their roots will enter the compaction space 8 as the equipment moves forward. Since the distance between the seedlings is relatively equal during cultivation, their roots will enter the compaction space 8 one by one before the soil on their roots enters the compaction space 8. The soil on their roots will have the opportunity to be crushed synchronously when the pusher deflects to the right. When the roots enter the compaction space 8, the soil falling efficiency is improved.

[0020] The intermittent deflection of the anti-tipping rolling push plate 5 prevents seedlings from falling towards the traction frame 1 during the lifting process. This anti-tipping mechanism completely replaces the traditional manual adjustment of seedling posture, avoiding work interruptions caused by seedling falling and ensuring the continuity of the lifting process. The periodic change of the rolling space 8 formed by the anti-tipping rolling push plate 5 and the shovel plate 3 allows for precise crushing of the clumps of soil attached to the seedling roots. Combined with the soil-vibrating action of the prying claw combination, the seedling-soil separation rate is improved compared to existing equipment, significantly reducing soil residue at the roots. Through the linkage design of the transmission component 7, the four actions of prying, vibrating, anti-tipping, and rolling are performed simultaneously, improving work efficiency compared to existing single-function seedling lifting equipment. This design meets the high-efficiency operation needs of large-scale seedling planting bases. The single power source driving multiple actuators simplifies the power transmission link, reduces the number of power sources and transmission components, lowers the equipment failure rate compared to existing multi-power source equipment, and also reduces the overall weight and manufacturing cost of the equipment.

[0021] In another embodiment, inclined sides 10 are provided on both sides of the pointed part 6 towards the advancing end. The pointed part 6 serves as the introduction part for the soil to be introduced into the root of the seedling at the advancing end of the shovel plate 3. The inclined sides 10 on both sides can reduce resistance, improve the advancing efficiency, and facilitate the seedling to be guided onto the shovel plate 3 after being lifted.

[0022] In another embodiment, the forward end of the anti-tipping rolling pusher 5 is provided with an arc-shaped material guiding area 11, which bends towards the hanger 2. Its following end is provided with a horizontal pushing area 12, the height of which is close to the height of the hanger 2. The arc-shaped material guiding area 11 corresponds to the left side of the pointed part 6 and serves as a lateral guide to assist the pointed part 6 in guiding the seedlings after they have been lifted onto the shovel plate 3. From there, the shovel plate 3 guides the seedlings onto the horizontal pushing area 12. When the horizontal pushing area 12 deflects to the right, it either lays the seedlings down to the right or directly feeds them onto the pry bar assembly 4 to shake off the soil around the roots.

[0023] In another embodiment, the single power source includes a gearbox 13 fixed to the traction frame 1. The output end of the gearbox 13 is connected to a power output shaft 14. An eccentric wheel 18 is mounted at the end of the power output shaft 14. A row of bushings 15 is mounted on the following end of the shovel plate 3. The pry bar assembly 4 includes a synchronous shaft 16 that is pivotally connected within the bushings 15, and several pry bars 17 mounted on the synchronous shaft 16. A connecting rod structure 19 is mounted on the eccentric shaft of the eccentric wheel 18. One end of the connecting rod structure 19 is hinged to the eccentric wheel 18, and the other end is hinged to the synchronous shaft 16. This embodiment discloses one way of providing a single power source. When this power drive is assembled and used on agricultural equipment, the power from the agricultural equipment is applied to the input end of the gearbox 13 as a power source, thus saving power. This power is applied to the drive claw assembly 4, which drives the claw assembly 4 to pry up and down, thereby shaking the soil introduced into the seedling roots downwards. In this invention, the single power source simultaneously provides power to the anti-tipping rolling push plate 5. The specific linkage logic is as follows: the power is transmitted to the hinge shaft of the anti-tipping rolling push plate 5 through the transmission component 7 (such as a gear set or sprocket drive, with sprocket drive preferred for this harsh environment), causing the anti-tipping rolling push plate 5 to deflect intermittently left and right: for example, when the claw in the claw assembly 4 is inserted into the soil, the anti-tipping rolling push plate 5 deflects away from the shovel plate, expanding the rolling space 8, making it easier for the seedling roots to enter; when the claw in the claw assembly 4 lifts up to pry the seedling, the anti-tipping rolling push plate 5 deflects towards the shovel plate 3, reducing the rolling space 8, and crushing the soil at the seedling roots, realizing the coordinated operation of "prying seedlings - rolling". The power output from gearbox 13 drives the power output shaft 14 to rotate, which in turn drives the eccentric wheel 18 at its end to rotate synchronously. Due to the eccentricity between the eccentric shaft of the eccentric wheel 18 and the axis of the power output shaft 14, the eccentric shaft of the eccentric wheel 18 rotates in a circular motion, which in turn drives the first connecting rod (part of the connecting rod structure 19) hinged to the eccentric shaft to swing back and forth. The first connecting rod drives the second connecting rod (the second part of the connecting rod structure 19) to move in a linear reciprocating motion through a universal joint. The second connecting rod pulls the synchronous shaft 16 to rotate back and forth within the bushing 15. When the synchronous shaft 16 rotates, it drives the pry bar 17 on it to swing synchronously around the synchronous shaft 16. The free end of the pry bar 17 first inserts downward into the soil, adheres to the root of the seedling, and then lifts upward to complete the prying action. At the same time, the reciprocating swing of the pry bar 17 generates high-frequency vibration, which initially shakes off the loose soil attached to the root of the seedling, thus achieving the synchronous completion of prying and soil shaking.

[0024] In this embodiment, the power of external agricultural equipment is reused, eliminating the need for an additional independent power source and reducing equipment manufacturing costs. The single power source structure of this embodiment is simple, with components such as the gearbox 13 and eccentric wheel 18 integrated between the traction frame 1 and the shovel plate 3. The overall size and weight of the equipment are small, making it easy to disassemble and assemble, and the structure is compact. The cooperation between the synchronous shaft 16 and the bushing 15 ensures that multiple pry bars 17 swing synchronously, avoiding damage to the seedling roots caused by inconsistent movements of individual pry bars. Actual testing shows that the failure rate of this power transmission structure is low, improving the reliability of equipment operation.

[0025] In another embodiment, the single power source also includes a mounting base 20 installed on the left side of the hanger 2. The mounting base 20 is equipped with a bearing, and a drive bevel gear 22 is installed on the synchronous shaft 16. One embodiment of the transmission assembly 7 is disclosed, which includes a relay shaft 21 installed on the bearing. The relay shaft 21 extends along the left side of the hanger 2 toward the following end of the shovel plate 3 and is equipped with a driven bevel gear 23. The driven bevel gear 23 meshes with the drive bevel gear 22. The other end of the relay shaft 21 extends toward the middle of the hanger 2 and is equipped with a drive sprocket 24. A left-right interconnected notch 25 is opened between the hinge end of the anti-tipping and crushing push plate 5 and the middle of the hanger 2. A chain shaft 26 is installed on the notch 25 of the anti-tipping and crushing push plate 5, and a driven sprocket 27 is installed on the chain shaft 26. The drive sprocket 24 and the driven sprocket 27 are driven by a chain.

[0026] When the synchronous shaft 16 rotates, the driving bevel gear 22 at its extended end rotates synchronously. Through meshing with the driven bevel gear 23, it converts the horizontal rotational power of the synchronous shaft 16 into the vertical rotational power of the relay shaft 21. This arrangement is suitable for the spatial layout on the left side of the hanger 2, avoiding interference between the transmission components and the shovel plate 3 and the traction frame 1, resulting in a reasonable layout. When the relay shaft 21 rotates, the driving sprocket 24 at its other end rotates synchronously, transmitting power to the driven sprocket 27 via a chain. Since the driven sprocket 27 has more teeth than the driving sprocket 24, it achieves speed reduction and torque increase during transmission, converting the rotational power of the relay shaft 21 into a driving force with sufficient torque. This drives the chain shaft 26 to rotate, which in turn drives the anti-tipping and rolling push plate 5 to deflect intermittently left and right around its hinge axis. The driving bevel gear 22 drives the driven bevel gear 23 to rotate forward, and the relay shaft 21 drives the driving sprocket 24 to rotate forward. Through the chain, the driven sprocket 27 is pulled to rotate forward, thus preventing the anti-tipping and rolling push plate from rolling over. The push plate 5 deflects away from the shovel plate 3, expanding the compaction space 8 to facilitate the smooth entry of seedling roots. When the synchronous shaft 16 drives the pry claw 17 to lift the seedling upward, the active bevel gear 22 drives the driven bevel gear 23 to rotate in the opposite direction, and the relay shaft 21 drives the active sprocket 24 to rotate in the opposite direction. Through the chain, the driven sprocket 27 is pulled to rotate in the opposite direction, causing the anti-tipping compaction push plate 5 to deflect closer to the shovel plate 3, reducing the compaction space 8 and crushing the clumps of soil around the seedling roots. The entire process requires no additional control components, and coordination is achieved only through mechanical transmission ratio matching to ensure the continuity of the operation process.

[0027] like Figure 2 , Figure 3 As shown, in another embodiment, a rubber pad 28 is installed on the right side of the hinge end of the anti-tipping rolling push plate 5, and the rubber pad 28 protrudes into the rolling space 8.

[0028] When the rubber pad 28 comes into contact with the roots of the seedling (especially the fibrous roots), the elastic deformation characteristics of the rubber material can absorb some of the squeezing force, avoiding damage to the fibrous roots caused by rigid squeezing.

[0029] like Figure 2 , Figure 3 As shown, in another embodiment, the drain 9 is rectangular, with one long end close to the notch 25 and the other long end close to the synchronous shaft 16. The drain 9 is located within the compaction space 8 and is relatively large, so that the crushed root soil has enough space to return to the soil through the drain 9.

[0030] like Figure 3 , Figure 7As shown, in another embodiment, a stepped groove 29 is provided on the top surface of the shovel plate 3 near the outlet 9. A rubber liner 30 is hinged in the stepped groove 29. A spring pad 31 is filled in the stepped groove 29. The bottom surface of the rubber liner 30 is elastically supported on the spring pad 31. The elastic action of the spring pad 31 makes the rubber liner 30 form a floating buffer surface of the rolling space 8. The floating buffer surface and the rubber pressure pad 28 correspond to each other vertically. The pressure sensor 30 is disposed in the stepped groove 29 relative to the bottom surface of the rubber liner 30.

[0031] When the anti-tipping rolling pusher 5 deflects towards the shovel 3 under the drive of the transmission component 7, the rolling space 8 gradually shrinks. The raised part of the upper rubber pad 28 first contacts the soil clump above the seedling roots and applies downward squeezing force at the same time. At this time, the soil clump below the seedling roots contacts the top surface of the rubber liner 30. As the upper squeezing force increases, the rubber liner 30 is compressed into the stepped groove 29, and the compression spring pad 31 generates an upward elastic restoring force, forming a synergistic squeezing effect of "upper pressure and lower push". The raised structure of the rubber pad 28 achieves targeted piercing of the soil clump, while the elastic push of the rubber liner 30 causes tensile stress at the bottom of the soil clump, accelerating the cracking and breaking of the clump. Compared with a single upper or lower pressure structure, the breaking efficiency is greatly improved. When the seedling roots enter the upper and lower coordinated compression zone, the elastic deformation of the rubber pad 28 buffers the upper compression force, preventing rigid impact on the seedling branches and fibrous roots. The lower rubber liner 30, under the action of the spring pad 31, adaptively pushes upwards, forming a flexible clamp with the upper rubber pad 28, ensuring even force distribution on the seedling roots. This prevents fibrous root breakage due to excessive pressure on one side and stabilizes the seedling's posture, preventing displacement during compression and further enhancing the anti-tipping effect. Soil debris between the two layers falls smoothly through the opening 9 under the slight vibration of gravity and elastic reset, preventing soil accumulation. Simultaneously, the reset action of the rubber liner 30 assists in moving the seedling roots towards the opening 9, ensuring the continuity of the operation. Soil clumps generate shear and tensile stress under the action of bidirectional forces, accelerating cracking and breakage.

[0032] This invention also features intelligent detection. When the pressure signal collected by the pressure sensor remains zero, the intelligent control module determines it as a fault of rubber liner detachment or spring pad failure. When the pressure signal collected by the pressure sensor 34 suddenly exceeds the threshold of a preset reasonable pressure range, the intelligent control module determines it as foreign object intrusion. Upon detecting a fault or foreign object intrusion, the intelligent control module immediately issues a warning signal and controls the single power source to reduce speed or stop. During normal operation, for example, with the pressure sensor 34 installed, a corresponding controller or other control module is configured in the control room, and the pressure signal should be within... A preset reasonable range (pre-calibrated according to soil type and seedling specifications) is defined. If the pressure sensor 34 continuously collects a pressure signal of zero, the control module determines that the problem is due to faults such as rubber liner detachment or spring pad 31 failure. If the pressure signal suddenly exceeds the threshold value (e.g., when crushing a hard object such as a stone), it is determined to be due to foreign object intrusion. In the event of the above situations, the control module immediately issues a warning signal (to alert the operator via an audible and visual alarm) and automatically controls the single power source to reduce speed or stop the machine to prevent the fault from escalating and causing damage to the transmission components or serious damage to the seedlings, thereby improving operational safety and equipment reliability. When soil clumps of different hardness are compressed against the rubber liner, the resulting pressure signals vary significantly (e.g., hard clumps have high pressure peaks and rapid rise rates, while loose soil has low pressure peaks and gradual changes). Pressure sensor 34 collects pressure signals in real time and transmits them to the control module. The control module has a built-in soil hardness recognition algorithm. By analyzing parameters such as the peak value and slope of the pressure signal, it can accurately determine the hardness of the soil clumps around the seedling roots. If hard soil clumps are identified, the control module automatically sends adjustment commands to the single power source and transmission components. By increasing the output power of the single power source and adjusting the transmission ratio between the sprockets (changing the position of different connecting wheel units on the driven sprocket 27, such as a sprocket-type speed change mechanism, which will not be elaborated in the existing technology), the deflection force of the anti-tipping rolling pusher is increased and the deflection speed is slowed down, ensuring that the soil clumps are fully broken up. If loose soil is identified, the rolling pressure is automatically reduced and the operating speed is increased to avoid excessive compression that could damage the seedling roots, achieving intelligent operation with "force applied as needed".

[0033] like Figure 3 As shown, in another embodiment, the right end of the shovel plate 3 is provided with an upwardly curved guide portion 32, and the top of the guide portion 32 is provided with a rubber sleeve 33. The rubber sleeve 33 gradually slopes downward from the forward end to the following end. After the seedling is laid down, except for the roots which are mostly within the crushing space 8, the stem will lie on the rubber sleeve 33. Using the inclination and the equipment, it continues to slide forward towards the pry claw assembly 4. The rubber sleeve 33 prevents the stem surface from being broken or scratched, thus playing a protective role.

[0034] It should be further explained that this invention abandons the redundant design of "forcing seedlings to lie completely flat." Through the small-angle intermittent deflection of the anti-tipping rolling pusher plate 5, it can prevent seedlings from falling towards the traction frame 1 during the lifting process, fundamentally avoiding damage and work interruptions caused by interference between seedlings and equipment components, thus replacing the traditional manual adjustment of seedling posture. It should be emphasized that the lifting process does not require the seedlings to be completely flattened. As for the root soil compaction, it only applies to roots that can lie flat or enter the compaction space 8 when the equipment moves forward. That is, although the compaction and crushing structure of this invention can significantly improve the efficiency of seedling-soil separation, it cannot guarantee that the soil from the roots of every seedling will enter the compaction space 8 and be crushed and removed due to objective factors such as the seedling's growth state and uneven soil distribution. Even if a small amount of soil remains, it is far lower than the residue of existing seedling lifting equipment, reducing manual workload and eliminating the need for frequent manual cleaning, thus solving technical problems. This compaction function only plays an auxiliary role before the pry bar assembly 4 vibrates the soil.

[0035] The above orientation references do not represent the specific orientations of each component in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme and to make relative descriptions based on the orientations of the references. In reality, the specific orientations of each component are based on their actual installation and use, as well as the orientation descriptions that are customary to those skilled in the art. This is hereby stated.

[0036] The specific embodiments described above further illustrate the inventive purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, or improvements made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automated seedling lifting machine, characterized in that, The system includes a traction frame (1), a single power source, and a soil-planting and seedling-tilting linkage mechanism. The single power source is installed on the traction frame (1) to provide power to the soil-planting and seedling-tilting linkage mechanism. The soil-planting and seedling-tilting linkage mechanism includes a hanger (2), a shovel plate (3), a pry bar assembly (4), and an anti-tipping and rolling push plate (5). The top of the hanger (2) is fixedly connected to the right side of the traction frame (1), and the bottom extends to the bottom of the traction frame (1) and is fixedly connected to the shovel plate (3). The forward end of the shovel plate (3) is provided with a pointed part (6). The pry bar assembly (4) is hinged to the following end of the shovel plate (3) and is connected to the single power source. The single power source drives the pry bar assembly (4) to swing up and down around its hinge end to achieve [the desired effect]. The seedlings are pried up and the soil is vibrated. The anti-tipping rolling push plate (5) is hinged to the right side of the hanger (2), and its hinge end is connected to the single power source through the transmission component (7). The single power source drives the anti-tipping rolling push plate (5) to deflect intermittently away from the right side of the traction frame (1) to prevent the seedlings from falling to the side of the traction frame (1) during the seedling lifting process. A rolling space (8) is formed between the hinge end of the anti-tipping rolling push plate (5) and the top surface of the shovel plate (3). A pressure sensor (34) is provided in the rolling space (8). The rolling space (8) changes in size and periodically as the anti-tipping rolling push plate (5) deflects. A vent (9) is opened on the shovel plate (3) relative to the deflection position of the anti-tipping rolling push plate (5).

2. The automated seedling lifting machine according to claim 1, characterized in that, An inclined edge (10) is provided on both sides of the pointed part (6) toward the following end.

3. The automated seedling lifting machine according to claim 2, characterized in that, The front end of the anti-tipping and rolling push plate (5) is provided with an arc-shaped material guiding area (11), which is bent toward the hanger (2). Its following end is provided with a horizontal pushing area (12), and the height of the horizontal pushing area (12) is close to the height of the hanger (2).

4. The automated seedling lifting machine according to claim 3, characterized in that, The single power source includes a gearbox (13) fixed on the traction frame (1), the output end of the gearbox (13) is connected to a power output shaft (14), the end of the power output shaft (14) is equipped with an eccentric wheel (18), a row of bushings (15) is installed on the following end of the shovel plate (3), the pry bar assembly (4) includes a synchronous shaft (16) rotatably connected in the bushings (15), and a number of pry bars (17) installed on the synchronous shaft (16), a connecting rod structure (19) is installed on the eccentric shaft of the eccentric wheel (18), one end of the connecting rod structure (19) is hinged to the eccentric wheel (18), and the other end is hinged to the synchronous shaft (16).

5. The automated seedling lifting machine according to claim 4, characterized in that, The single power source also includes a mounting base (20) installed on the left side of the hanger (2), on which a bearing is mounted, and a driving bevel gear (22) is mounted on the synchronous shaft (16). The transmission assembly (7) includes a relay shaft (21) mounted on the bearing. The relay shaft (21) extends along the left side of the hanger (2) toward the following end of the shovel plate (3) and is equipped with a driven bevel gear (23). The driven bevel gear (23) and the driving bevel gear (22) are connected. 2) Engagement, the other end of the relay shaft (21) extends toward the middle of the hanger (2) and is equipped with a drive sprocket (24). A left-right interconnected notch (25) is opened between the hinge end of the anti-tipping and rolling push plate (5) and the middle of the hanger (2). A chain shaft (26) is installed on the notch (25) of the anti-tipping and rolling push plate (5). A driven sprocket (27) is installed on the chain shaft (26). The drive sprocket (24) and the driven sprocket (27) are driven by a chain.

6. The automated seedling lifting machine according to claim 5, characterized in that, A rubber pad (28) is installed on the right side of the hinge end of the anti-tipping rolling push plate (5), and the rubber pad (28) protrudes into the rolling space (8).

7. The automated seedling lifting machine according to claim 6, characterized in that, The vent (9) is rectangular, with one long end close to the notch (25) and the other long end close to the synchronous shaft (16).

8. The automated seedling lifting machine according to claim 7, characterized in that, A stepped groove (29) is provided on the top surface of the shovel plate (3) near the outlet (9). A rubber liner (30) is hinged in the stepped groove (29). A spring pad (31) is filled in the stepped groove (29). The bottom surface of the rubber liner (30) is elastically supported on the spring pad (31). The elastic action of the spring pad (31) makes the rubber liner (30) form a floating buffer surface of the rolling space (8). The floating buffer surface corresponds to the rubber pressure pad (28) vertically. The pressure sensor (34) is located in the stepped groove (29) relative to the bottom surface of the rubber liner (30).

9. The automated seedling lifting machine according to claim 7, characterized in that, It also includes an intelligent control module, which is electrically connected to the pressure sensor (34) and the single power source respectively; the intelligent control module has a preset reasonable pressure range corresponding to different soil types and seedling specifications, and the intelligent control module is used to receive the pressure signal transmitted by the pressure sensor (34) and compare the pressure signal with the preset reasonable pressure range.

10. The automated seedling lifting machine according to claim 8, characterized in that, The right end of the shovel plate (3) is provided with an upwardly curved guide (32), and the top of the guide (32) is provided with a rubber sleeve (33), which gradually tilts downward from the forward end to the follow end.

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