A digging rice turning machine

Abstract

The present invention provides an excavating rice turning machine, which relates to the technical field of crop rice turning, and comprises: a frame; a press roller and a feed mechanism connected to the frame, the press roller being arranged in front of the feed mechanism, the feed mechanism having an end away from the press roller being arranged upwardly and tilted, and a shovel plate being arranged between the feed pipe and the feed mechanism; the feed mechanism comprising a transmission chain connected to the frame, a transport rod being connected between the two transmission chains, and a triangular stirring tooth being fixedly connected to the upper surface of the feed rod; a rotating shaft being rotatably connected to the frame behind the feed mechanism, the rotating shafts being arranged at left and right ends of the frame, with the ends of the two rotating shafts being arranged downwardly and tilted, and a plurality of turning wheels being arranged in an axial array on the rotating shaft; and a support wheel being fixedly connected to the outer side surface of the press roller, with a plurality of support wheels being arranged axially along the press roller. The present invention ensures smoother operation of the frame and improves the stability of the depth of the shovel plate shoveling into the ridge.

Description

Technical Field

[0001] The invention relates to the technical field of crop rice turning, and in particular to a digging rice turning machine. Background Art

[0002] The digging and turning machine is a type of agricultural machinery specially used for peanut harvesting. Its core functions are the integrated turning operation and harvesting. That is, the stems and vines of the peanut plants are pulled out of the soil and turned over through mechanical devices (such as clamps, turning mechanisms, etc.), cutting off the contact between the aerial roots and the soil, and facilitating the subsequent separation of the tubers. It integrates processes such as supporting the seedlings, digging and loosening the soil, clamping and conveying, shaking the soil, and picking the fruit, so that the turning of the seedlings and the harvesting can be completed simultaneously, reducing the fruit leakage rate and improving the operation efficiency. In modern agricultural production, the digging and turning of crops is a key link to ensure the efficiency and quality of harvesting. With the continuous improvement of the degree of agricultural mechanization, a set of scientific and efficient digging and turning equipment operation procedures have emerged, which has greatly improved the level of modernization of agricultural production.

[0003] For example, the Chinese patent for a suspended peanut shaking and turning machine with the authorization announcement number CN222216475U is a patent in which the turning machine is driven by a tractor to move as a whole, and then the motor is turned on to pick up the peanut vines on the ground through a rotating picker, and the peanut vines are transported to the flower roller rack through the rotation of the picker, and the peanut vines are shaken and loosened by the flower roller pieces on the flower roller rack. The transmission wheel drives the gear disc to rotate, and the gear disc will mesh back and forth with the gear guide rail on the inner side of the lifting frame during the rotation, thereby driving the lifting frame to perform reciprocating lifting and lowering motion, and then the loosening soil striking shaft at the bottom of the lifting frame is in direct contact with the roots of the peanut vines and pats the soil on it. The fallen soil falls directly to the ground, and the peanut vines continue to turn with the flower roller rack under the support of multiple main shafts until they are turned over by the flower roller rack and arranged on the ground for drying.

[0004] Regarding the aforementioned technologies, during the peanut picking process, the ridges are characterized by multiple furrows, creating an undulating wave pattern. As the frame drives the press rollers, the contact between the press rollers and the ridges causes them to fluctuate. This undulation leads to unstable cutting depths for the machine blades: insufficient plowing depth in high areas may leave uncut roots or weeds; excessive plowing depth in low areas can easily sever or damage crop roots. Furthermore, the frequent fluctuations and vibrations exacerbate metal fatigue in core components such as the blades and drive chains, shortening the equipment's lifespan. Summary of the Invention

[0005] In view of this, the present invention provides an excavating rice turning machine, which aims to solve the problem that the pressure roller will fluctuate when it contacts the ridge, and the uneven ground causes the cutting depth of the machine blade to be unstable.

[0006] In order to solve the above technical problems, the present invention provides an excavating rice turning machine, comprising a frame; the frame is connected with a pressing roller and a feeding mechanism, the pressing roller is arranged in front of the feeding mechanism, and the feeding mechanism is tilted upward at one end away from the pressing roller, and a shovel plate is arranged between the feeding pipe and the feeding mechanism; the feeding mechanism includes a transmission chain connected to the frame, the transmission chain is arranged on the left and right sides of the frame, a transport rod is connected between the two transmission chains, and a triangular stirring tooth is fixedly connected to the upper surface of the feeding rod; the frame is rotatably connected to a rotating shaft at the rear of the feeding mechanism, the rotating shaft is arranged at the left and right ends of the frame and the ends of the two rotating shafts close to each other are tilted downward, and a plurality of turning wheels are arranged in an axial array along the rotating shaft; the outer side surface of the pressing roller is fixedly connected to a supporting wheel, and a plurality of supporting wheels are arranged along the axial direction of the pressing roller.

[0007] By adopting the above technical solution, when the frame drives the press roller to move, the support wheel supports the press roller when it rotates along the ridge, reducing the ups and downs of the press roller. Since there is a distance between the press roller and the shovel plate, the ups and downs of the press roller and the shovel plate are not equal at the same time, making it difficult for the shovel plate to shovel into the soil to a corresponding depth according to the height of the ridge slope in front and shovel the material. The support wheel supports the press roller, making the frame run more smoothly and reducing the negative impact of the up and down movement of the frame on the depth of the shovel plate shoveling into the soil.

[0008] Optionally, a gathering rod is fixedly connected to one end of the frame close to the rotating shaft, and the gathering rod is used to gather the materials on the tipping wheel between the two rotating shafts.

[0009] Optionally, the shovel plate is fixedly connected to a guide rod at one end close to the feeding mechanism.

[0010] Optionally, the vehicle frame is fixedly connected to a sliding rod four, a sliding sleeve of the sliding rod four is provided with a guide plate, and a return spring is provided between the vehicle frame and the guide plate.

[0011] Optionally, the outer side surface of the pressing roller is fixedly connected to a depth limiting ring, and the depth limiting ring is arranged between the multiple supporting wheels.

[0012] By adopting this technical solution, a depth-limiting ring is fixedly mounted on the outside of the pressing roller, gently pressing the stems and leaves of the crops before turning the seedlings. The depth-limiting ring's elastic deformation allows for a gentler compression of the crop stems and leaves, effectively reducing breakage during the pressing process.

[0013] Optionally, the frame is fixedly connected to a support cylinder, a slide rod 1 is slidably connected inside the support cylinder, the slide rod 1 is fixedly connected to the guide plate, the outer side surface of the pressing roller is fixedly sleeved with a pressing shell, the pressing shell is arranged inside the depth limiting ring, the pressing shell is filled with hydraulic oil, the pressing shell can produce elastic deformation, the pressing shell is fixedly connected to a transmission shell through an infusion pipe, the transmission shell is connected to a closing plate along the circumferential rotation, and a flow pipe is fixedly connected between the closing plate and the support cylinder.

[0014] With this technical solution, when the ridge slope in front of the frame is too high, the depth control ring deforms excessively. The ridge slope squeezes the depth control ring, causing the press housing to deform and dent. This forces the hydraulic oil in the press housing to be transported via the fluid pipe to the support cylinder. The increased hydraulic oil in the support cylinder pushes slide bar 1 upward, and the guide plate moves synchronously with slide bar 1, compressing the return spring. When the ridge slope decreases, the depth control ring disengages from the press housing, and the return spring pushes the guide plate downward. This adjusts the height of the guide plate according to the ridge slope. As the ridge slope increases, the scooping plate scoops up more soil. At this time, the guide plate rises to prevent excessive soil from accumulating in front of the guide plate and causing a blockage.

[0015] Optionally, one end of the vehicle frame close to the pressing roller is fixedly connected to a connecting frame, and the connecting frame close to the supporting wheel is fixedly connected to a soil cutting knife through a support rod.

[0016] By adopting the above technical solution, when the excavator is working, the soil-breaking knife cuts off the soil blocks in the middle of the soil, reducing the connection between the clay particles in the soil, making it easier for the subsequent shoveling plate to shovel up the soil.

[0017] Optionally, the rear end face of the support rod is fixedly connected to the support part, the upper surface of the support part is fixedly connected to the slide rod 2, the upper end of the slide rod 2 is fixedly connected to the limiting part, the outer sliding sleeve of the slide rod 2 is provided with a pushing piece, and the upper sleeve of the slide rod 2 is provided with an extrusion spring that pushes the pushing piece downward.

[0018] By adopting this technical solution, the vehicle frame sequentially drives the pusher through the connecting frame, support rod, and support portion. The V-shaped pusher pushes clods to the sides, reducing the amount of clods contacted by the support wheels during operation and further improving the stability of the vehicle frame. A compression spring pushes the pusher downward, allowing it to adapt vertically to the uneven soil surface. This increases the time the pusher remains in contact with the ground and improves its effectiveness in moving clods.

[0019] Optionally, the front end surface of the pushing piece is slidably connected to the cutting piece via a third slide bar, and a buffer spring is sleeved on the third slide bar.

[0020] By adopting the above technical solution, when the cutting piece impacts the stems and leaves to separate them, the reciprocating contraction of the buffer spring receiving the reaction force of the impact can buffer the impact of the cutting piece on the stems and leaves, thereby reducing the number of broken stems when separating the entangled stems and leaves, so as to ensure the integrity of the stems and leaves of crops such as sweet potatoes, whose stems and leaves are also edible.

[0021] Optionally, a connecting rod is fixedly connected to the side of the support rod, and an end of the connecting rod away from the support rod is fixedly connected to a scraper.

[0022] By adopting the above technical solution, the scraper is arranged close to the support wheel to scrape off the mud on the surface of the support wheel, which is beneficial to maintaining the cleanliness of the support wheel surface.

[0023] In summary, compared with the prior art, the present invention has at least one of the following beneficial technical effects:

[0024] 1. When the frame drives the press roller to move, the support wheel supports the press roller when it rotates along the ridge, reducing the ups and downs of the press roller. Since there is a distance between the press roller and the shovel plate, the ups and downs of the press roller and the shovel plate are not equal at the same time, making it difficult for the shovel plate to shovel into the soil to the corresponding depth according to the height of the ridge slope in front and shovel the material. The support wheel supports the press roller, making the frame run more smoothly and reducing the negative impact of the up and down movement of the frame on the depth of the shovel plate shoveling into the soil.

[0025] 2. When the ridge slope in front of the frame is too high, the depth control ring deforms excessively. The ridge slope squeezes the depth control ring, causing the pressure housing to deform and dent. This forces the hydraulic oil in the pressure housing to be transported via the fluid pipe to the support cylinder. The increased hydraulic oil in the support cylinder pushes the slide bar upward, and the guide plate moves synchronously with it, compressing the return spring. When the ridge slope decreases, the depth control ring disengages from the pressure housing, and the return spring pushes the guide plate downward. This adjusts the height of the guide plate according to the ridge slope. As the ridge slope increases, the scooping plate scoops up more soil, and the guide plate rises to prevent excessive soil accumulation in front of the guide plate, causing blockage.

[0026] 3. The turning wheel rotates to turn the crops, thereby turning the roots or fruits of the crops upwards. The turning wheel transports the crops to the gathering rod, and the crops fall along the axis of the gathering rod to the rear of the frame. The roots and fruits of the crops that fall on the ground are turned upwards. The gathering rods on the left and right sides of the frame gather the crops to the middle, improving the neatness of the crops and facilitating the operator to collect the crops.

[0027] 4. The depth limiting ring can produce elastic deformation, so that the depth limiting ring squeezes the stems and leaves of crops more gently, reducing the breakage of the stems and leaves of crops when pressing seedlings.

[0028] 5. When the equipment is in operation, the support wheels continuously rotate, inevitably collecting dirt and other impurities on their surfaces. At this point, the scraper blades, in their fixed position, move relative to the rotating support wheel surface. Through this interaction, the scraper blades scrape away dirt from the support wheel surface. The scraper blades' primary function is to efficiently remove dirt from the support wheel surface. Promptly removing dirt effectively prevents increased resistance to the support wheel due to dirt accumulation, reduces component wear, ensures smooth and stable operation, and extends the equipment's service life. This also ensures the precision of the support wheel and maintains overall equipment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the overall structure of an embodiment of the present invention;

[0030] Figure 2 A rear view of an embodiment of the present invention;

[0031] Figure 3 A side view of the support wheel, shovel plate and feed mechanism according to an embodiment of the present invention;

[0032] Figure 4 This is a schematic structural diagram of a material pushing member, a material breaking member, and a depth limiting ring according to an embodiment of the present invention;

[0033] Figure 5 2. It is a cross-sectional view of a depth limiting ring, a press housing and a press roller according to an embodiment of the present invention;

[0034] Figure 6 is a cross-sectional view of a support cylinder according to an embodiment of the present invention;

[0035] Figure 7 For the embodiment of the present invention Figure 5 A partial enlarged view of the middle area A;

[0036] Figure 8 This is a cross-sectional view of the pusher, cutter and support rod according to an embodiment of the present invention.

[0037] Explanation of the accompanying symbols: 1, frame; 11, pressing roller; 111, supporting wheel; 112, depth-limiting ring; 12, shovel plate; 121, guide rod; 13, rotating shaft; 131, turning wheel; 14, gathering rod; 15, sliding rod 4; 16, guide plate; 17, return spring; 18, connecting frame; 19, transmission frame; 2, feeding mechanism; 21, transmission chain; 22, transport rod; 23, stirring tooth; 24, sprocket; 3. Support cylinder; 31. Slide rod 1; 32. Pressing shell; 33. Infusion tube; 34. Transmission shell; 35. Closing plate; 36. Flow tube; 4. Support rod; 41. Soil-breaking knife; 42. Support part; 43. Slide rod 2; 44. Limiting part; 45. Pushing part; 451. Sliding part; 46. Extrusion spring; 47. Slide rod 3; 48. Cutting part; 49. Buffer spring; 5. Connecting rod; 51. Scraper. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figures 1-8 , clearly and completely describe the technical solutions of the embodiments of the present invention.

[0039] This embodiment provides a digging rice turning machine, referring to Figure 1 and Figure 2 A digging and turning machine for rice seedlings includes a frame 1, a pressing roller 11 and a feeding mechanism 2. The frame 1 is vertically erected on the horizontal ground, and a transmission frame 19 is fixedly connected to the front end thereof. In actual operation, the operator engages the tractor with the transmission frame 19. After the tractor is started, the frame 1 is driven to move in the field through the traction of the transmission frame 19, providing the entire digging and turning machine with moving power and support foundation. The pressing roller 11 is rotatably connected to the front end of the frame 1, and its main function is to press the crops. By squeezing the crops downward so that the stems and leaves are tightly attached to the ground, this design can significantly reduce the entanglement of plants during the operation of the turning machine, creating good conditions for the smooth progress of subsequent operations.

[0040] Reference Figure 2 and Figure 3 A shovel plate 12 is provided behind the press roller 11. Two shovel plates 12 are fixedly connected to the left and right ends of the frame 1. The two shovel plates 12 are tilted rearward relative to the inner side surface. Their function is to scoop up the soil containing root crops and prepare for subsequent transportation. The feeding mechanism 2 is installed on the side of the shovel plate 12 away from the press roller 11 and is connected to the frame 1. The end of the feeding mechanism 2 away from the press roller 11 is tilted upward. At the same time, the guide rod 121 fixedly connected to the rear end of the shovel plate 12 can effectively guide the soil into the feeding mechanism 2 smoothly, realizing the orderly transportation of soil and crops.

[0041] Reference Figure 1The feeding mechanism 2 includes a sprocket 24, a transmission chain 21 and a transport rod 22. Specifically, there are four sprockets 24 in total, and the four sprockets 24 are rotatably connected to the four corners of the frame 1 respectively, providing the basis for power transmission for the operation of the entire feeding mechanism 2. There are two transmission chains 21, and each transmission chain 21 is sleeved on two sprockets 24 adjacent to each other in the front and rear directions. By equipping the frame 1 with a rotation source such as a motor, the sprocket 24 can be driven to rotate, thereby driving the transmission chain 21 to operate. Between the two transmission chains 21, a transport rod 22 is fixedly connected. There are multiple transport rods 22, and the transport rods 22 are distributed in an array along the length direction of the transmission chain 21. The upper surface of the transport rod 22 is fixedly connected with a stirring tooth 23, and there are also multiple stirring teeth 23 along the axial direction of the transport rod 22. Its cross-section is triangular, and the unique shape design is conducive to knocking the soil on the roots and stems of crops and the surface of fruits.

[0042] Reference Figure 1 and Figure 2 The rear of the frame 1 is rotatably connected to the rotating shaft 13, and the two rotating shafts 13 are respectively arranged at the left and right ends of the frame 1. The ends close to each other are designed to be tilted downward to form a specific angle layout. Along the axial direction of the rotating shaft 13, a plurality of tipping wheels 131 are distributed in an array and are firmly fixed to the rotating shaft 13. The teeth of the tipping wheel 131 adopt a conical structure design. At the end of the frame 1 close to the rotating shaft 13, a gathering rod 14 is fixedly connected, and its main function is to converge the material carried on the tipping wheel 131 between the two rotating shafts 13 to realize centralized transportation of the material.

[0043] The operator starts and drives a tractor or other driving vehicle, which drives the frame 1 through the transmission frame 19 to begin operation. During operation, the frame 1 pushes the press roller 11 to rotate synchronously. The press roller 11 was designed with appropriate pressure parameters based on the characteristics of different crops. During operation, the press roller 11 presses downward on the stems and leaves of the crops, preliminarily sorting out the messy stems and leaves, making the crops easier to handle in subsequent operations. This operation not only improves the efficiency of subsequent operations but also reduces the impact of problems such as stem and leaf entanglement on the equipment.

[0044] After the stems and leaves are sorted, the shoveling plate 12 starts working, scooping up the soil containing the roots, stems, or fruits of the crops. As the frame 1 continues to move, the guide rod 121 transports the scooped soil in an orderly manner to the transport rod 22. The transport rod 22 operates synchronously with the transmission chain 21, and through its own movement, it transports the soil to the rear and top of the frame 1. During the transportation process, the stirring teeth 23 installed on the transport rod 22 move continuously. These stirring teeth 23 knock on the crops wrapped in the soil with a specific frequency and force. Its working principle is to use mechanical collision force to separate the soil from the crops. While transporting the crops upward, the crops and the soil are effectively separated. The separated crops are smoothly transported to the turning wheel 131, and the soil falls to the bottom of the frame 1 due to gravity, thus completing the separation process of the soil and crops.

[0045] The turning wheel 131 rotates to turn the crops that enter it, turning the roots and fruits upward. The turning wheel 131 then transports the crops to the gathering rods 14, where they slide along the axis of the gathering rods 14 to the rear of the vehicle frame 1. At this point, the roots and fruits that have fallen to the ground face upward. The gathering rods 14 on the left and right sides of the vehicle frame 1 work to gather the scattered crops toward the center, significantly improving the uniformity of the crops and greatly facilitating the operator's subsequent collection of the crop products.

[0046] Reference Figure 1 and Figure 4 The outer side of the pressing roller 11 is fixedly connected with six support wheels 111, and these support wheels 111 are evenly distributed along the axial direction of the pressing roller 11. Due to the presence of multiple furrows on the ridge, the ridge presents a wave-like shape that fluctuates up and down. When the frame 1 drives the pressing roller 11 to move forward, the support wheels 111 will roll along the depression between the two upward-protruding ridge slopes. The length direction of the ridge slope is parallel to the running direction of the frame 1. At the same time, the support wheels 111 support the pressing roller 11, reducing the amplitude of the ups and downs of the pressing roller 11, so that the pressing roller 11 can move smoothly along the running trajectory of the support wheels 111, thereby ensuring that the frame 1 runs more smoothly. Since the shovel plate 12 runs synchronously with the frame 1, the ups and downs of the shovel plate 12 are also reduced, and the stability of the depth of the shovel plate 12 shoveling into the ridge is improved. This design not only reduces damage to the roots and fruits of crops, but also reduces the metal fatigue caused by the frequent fluctuations of the shovel plate 12.

[0047] Reference Figure 4 and Figure 5, three depth-limiting rings 112 are fixedly connected to the outer side of the pressing roller 11, and these depth-limiting rings 112 are distributed between multiple support wheels 111. The depth-limiting ring 112 is fixedly sleeved on the outside of the pressing roller 11, and there is a cavity between the depth-limiting ring 112 and the pressing roller 11. The cavity not only ensures that the depth-limiting ring 112 can be firmly sleeved on the pressing roller 11, but also provides the necessary space for the elastic deformation of the depth-limiting ring 112. At the same time, it also reduces the weight of the overall structure to a certain extent and optimizes the flexibility of the equipment operation. Before turning the crops, the depth-limiting ring 112 can moderately squeeze the stems and leaves of the crops downward. The depth-limiting ring 112 has elastic deformation ability, which makes it softer when squeezing the stems and leaves of crops, effectively reducing the breakage of the stems and leaves of crops during the seedling pressing process.

[0048] Reference Figure 2 and Figure 6 The frame 1 is fixedly connected to a slide bar 15, on which a guide plate 16 is slidably sleeved, and a return spring 17 is installed between the frame 1 and the guide plate 16. The guide plate 16 is arranged above the shovel plate 12 and the feeding mechanism 2. When transporting soil and crops, the guide plate 16 is mainly used to guide the soil and crops scooped up by the shovel plate 12. When the feeding mechanism 2 transports the soil and crops upward and toward the rear of the frame 1, the soil and crops will contact the guide plate 16 during the upward movement. At this time, the guide plate 16 can limit its upward movement, preventing the soil and crops from piling up too high at the front of the frame 1 and causing blockage, thereby ensuring that the crops can be transported to the rear of the frame 1 in an orderly manner.

[0049] Reference Figure 5 、 Figure 6 and Figure 7 A support cylinder 3 is fixedly connected to the frame 1. A slide bar 31 is slidably connected to the support cylinder 3, and the slide bar 31 is fixedly connected to the guide plate 16. A press housing 32 is fixedly sleeved on the outer side of the press roller 11. This press housing 32 is located inside the depth-limiting ring 112. The interior of the press housing 32 is filled with hydraulic oil and is capable of elastic deformation. The press housing 32 is fixedly connected to the transmission housing 34 via a fluid infusion tube 33. The transmission housing 34 is rotatably connected to a closing plate 35 in the circumferential direction. The closing plate 35 is fixedly connected to the support cylinder 3 via a flow tube 36.

[0050] When the height of the ridge in front of the vehicle frame 1 changes, the automatic height adjustment system of the device activates. When the ridge slope is too high, the depth control ring 112 is subjected to significant pressure and deforms significantly. During this process, the ridge slope exerts a compressive force on the press housing 32 through the depth control ring 112, causing it to deform concavely. As the press housing 32 deforms, the hydraulic oil inside is transported via the fluid delivery tube 33 to the transmission housing 34. The hydraulic oil in the transmission housing 34 is then further transported to the support cylinder 3 via the flow tube 36. As the hydraulic oil in the support cylinder 3 accumulates, the pressure generated by the hydraulic oil pushes the slide bar 131 upward, causing the guide plate 16, which is fixedly connected to the slide bar 131, to rise synchronously. As the guide plate 16 rises, the return spring 17 is compressed, storing elastic potential energy. When the ridge slope decreases, the depth control ring 112 is no longer subject to the compressive force of the ridge slope. The compressed return spring 17 releases its elastic potential energy, pushing the guide plate 16 downward to return to its original position.

[0051] Through the above-mentioned operating mechanism, the device can automatically adjust the height of the guide plate 16 according to the change in the height of the ridge slope. When the ridge slope height increases and the amount of soil scooped up by the shovel plate 12 increases, the guide plate 16 will rise accordingly, thereby effectively preventing the excessive accumulation of soil in front of the feeding mechanism 2, avoiding blockage and ensuring smooth operation of the device.

[0052] Reference Figure 4 and Figure 8 A connecting frame 18 is fixedly connected to one end of the frame 1 near the press roller 11. Four support rods 4 are fixedly connected to the connecting frame 18 near the support wheel 111. These support rods 4 are evenly arranged along the axial direction of the press roller 11. Soil breakers 41 are fixedly connected to the two support rods 4 located in the middle of the press roller 11. During operation, the soil breakers 41 can cut off clods in the middle of the soil, effectively reducing the connection between clay particles and facilitating the subsequent scooping of soil by the shovel board 12.

[0053] Reference Figure 4 and Figure 8 The rear end face of each support rod 4 is fixedly connected to a support portion 42, the upper surface of the support portion 42 is fixedly connected to a second slide bar 43, the upper end of the second slide bar 43 is fixedly connected to a limit portion 44, and a pusher 45 is provided on the outer sliding sleeve of the second slide bar 43. In the front-to-back direction, the pusher 45 is arranged corresponding to the support wheel 111. The outer side surface of the pusher 45 is fixedly connected to a sliding portion 451, which slides in cooperation with the second slide bar 43. The front end face of the pusher 45 is V-shaped and inclined. The second slide bar 43 is provided with an extrusion spring 46. The extrusion spring 46 is located between the support portion 42 and the limit portion 44 and can push the pusher 45 downward.

[0054] The frame 1 drives the pusher 45 to move via the connecting frame 18, the support rod 4, and the support portion 42. As the frame 1 moves, the V-shaped pusher 45 encounters clods of earth in contact with the ground, and its inclined sides can push the clods away to both sides of the equipment's travel direction. This pushing method effectively reduces the number of clods of earth that the support wheel 111 contacts during operation, avoiding problems such as uneven resistance and wheel slippage caused by clod accumulation, thereby further enhancing the stability of the frame 1's operation and ensuring that the equipment can move forward smoothly even under complex terrain conditions. An extrusion spring 46 is provided between the pusher 45 and the frame 1, which provides a power source for the adaptive adjustment of the pusher 45.

[0055] In actual operation, the soil bottom surface is often uneven. When the pusher 45 contacts the ground with different heights, the compression spring 46 can elastically expand and contract in the vertical direction according to the undulations of the ground, driving the pusher 45 to move up and down. This adaptive movement mechanism ensures that the pusher 45 always maintains close contact with the ground, significantly extending the contact time with the ground, thereby more fully pushing away soil blocks in the path of travel, improving the effectiveness of pushing soil blocks, effectively reducing the risk of pusher failure due to uneven ground, and improving the working efficiency and reliability of the equipment.

[0056] Reference Figure 4 and Figure 8 The front end of the pusher 45 is slidably connected to a cutting member 48 via a third slide bar 47. The front end of the cutting member 48 is also arranged in a V-shape and tilted. A buffer spring 49 is sleeved on the third slide bar 47. The V-shaped pusher 45 can separate the entangled stems and leaves during movement. When the cutting member 48 impacts the stems and leaves to separate them, the buffer spring 49, acting under the impact reaction force, will reciprocate and contract, cushioning the impact of the cutting member 48. This reduces the number of stem breaks when separating the entangled stems and leaves, ensuring the integrity of the stems and leaves of edible crops such as sweet potatoes.

[0057] Reference Figure 8The side of the support rod 4 is fixedly connected to a connecting rod 5. The end of the connecting rod 5 away from the support rod 4 is fixedly connected to a scraper 51. The scraper 51 is positioned near the support wheel 111 and its mounting angle is adapted to the surface of the support wheel 111, ensuring that the scraper 51 can promptly clean the surface of the support wheel 111 during operation. When the equipment is in operation, the support wheel 111 continuously rotates, and dirt and other impurities inevitably adhere to the surface. At this time, the scraper 51 in the corresponding position, due to its fixed mounting state, produces relative motion with the rotating surface of the support wheel 111. Under the interaction of the two, the scraper 51 scrapes the dirt off the surface of the support wheel 111. The main function of the scraper 51 is to efficiently remove dirt attached to the surface of the support wheel 111. Timely scraping of dirt can effectively prevent the support wheel 111 from increasing operating resistance due to dirt accumulation, reduce component wear, ensure the smoothness and stability of the equipment operation, and extend the service life of the equipment. It also ensures the working accuracy of the support wheel 111 and maintains the overall operating efficiency of the equipment.

[0058] The operating principle of a digging and turning machine according to an embodiment of the present invention is as follows: During crop digging and turning operations, an operator drives a power-driven vehicle, such as a tractor, and stably transmits power to the frame 1 via the transmission frame 19, driving the frame 1 to operate smoothly in the field. As the frame 1 operates, the support wheels 111 roll along the depression between two upwardly raised ridges. During this process, the support wheels 111 provide reliable support for the nip roller 11, reducing the amplitude of the nip roller 11's ups and downs during operation, ensuring that the nip roller 11 maintains smooth movement along the operating path of the support wheels 111, thereby ensuring the stability of the entire frame 1.

[0059] The stable operation of the frame 1 drives the pressing roller 11 to rotate, and the pressing roller 11 presses the stems and leaves of the crops downward with appropriate pressure. This operation is an important step in the initial sorting of crops. Through squeezing, the messy stems and leaves are straightened out, making the subsequent processing of the crops more convenient and efficient, and laying a good foundation for the subsequent excavation work.

[0060] After initially cleaning the crop stems and leaves, the scooping plate 12 precisely scoops up the soil containing the crop roots, stems, or fruits. As the vehicle frame 1 continues to move forward, driven by the vehicle, the guide rods 121 transport the scooped soil to the transport rods 22. The transport rods 22 work closely with the drive chain 21, operating synchronously to form an efficient transport system, transporting the soil to the rear and above the vehicle frame 1.

[0061] During soil transportation, the stirring teeth 23 on the transport rod 22 are key components for separating crops from soil. The stirring teeth 23 continuously move with the operation of the transport rod 22, striking the crops entrained with soil with precise force and frequency. This striking action not only transports the crops upward but also separates the soil from the crops. The separated crops are smoothly transported to the tipping wheel 131, while the soil falls under the frame 1 under the action of gravity, thus completing the separation process and creating favorable conditions for subsequent crop collection and processing.

[0062] In addition, it should be noted that in the description of the present invention, the terms "install", "connect" and "connect" should be understood in a broad sense.

[0063] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A digging rice turning machine, comprising a frame, characterized in that: The frame is connected with a pressing roller and a feeding mechanism, the pressing roller is arranged in front of the feeding mechanism, the feeding mechanism is arranged at an angle upwards away from the pressing roller, and a shovel plate is arranged between the feeding pipe and the feeding mechanism; The feeding mechanism includes a transmission chain connected to the frame, the transmission chain is arranged on the left and right sides of the frame, a transport rod is connected between the two transmission chains, and a triangular stirring tooth is fixedly connected to the upper surface of the feeding rod; The frame is rotatably connected to a rotating shaft at the rear of the feeding mechanism. The rotating shafts are arranged at the left and right ends of the frame, and the ends of the two rotating shafts close to each other are arranged tilted downward. A plurality of turning wheels are arranged in an axial array along the rotating shaft; The outer side of the nip roller is fixedly connected with a supporting wheel, and a plurality of supporting wheels are arranged along the axial direction of the nip roller; The frame is fixedly connected with a sliding rod four, and a sliding sleeve of the sliding rod four is provided with a guide plate, and a return spring is provided between the frame and the guide plate; the outer side surface of the pressing roller is fixedly connected with a limited depth ring, and the depth limiting ring is arranged between a plurality of supporting wheels; the frame is fixedly connected with a supporting cylinder, and a sliding rod one is slidably connected inside the supporting cylinder, and the sliding rod one is fixedly connected to the guide plate, and the outer side surface of the pressing roller is fixedly sleeved with a pressing shell, and the pressing shell is arranged inside the depth limiting ring, and the inside of the pressing shell is filled with hydraulic oil. The pressing shell can produce elastic deformation, and the pressing shell is fixedly connected with a transmission shell through an infusion pipe, and the transmission shell is connected to a closing plate along the circumferential direction, and a circulation pipe is fixedly connected between the closing plate and the supporting cylinder; When the height of the ridge slope in front of the frame increases, the depth limiting ring is significantly deformed by the extrusion pressure of the ridge slope. The depth limiting ring applies extrusion pressure to the pressing shell to cause it to be concave and deformed. As the pressing shell deforms, the hydraulic oil inside the pressing shell can be transported to the transmission shell through the infusion pipe, and the hydraulic oil in the transmission shell is transported to the support cylinder through the circulation pipe. As the hydraulic oil in the support cylinder continues to increase, the hydraulic oil can push the slide bar to move upward, and the guide plate fixed to the slide bar moves upward synchronously. At this time, the reset spring is compressed; when the height of the ridge slope in front of the frame decreases, the depth limiting ring is not squeezed by the ridge slope, the reset spring is reset, and the reset spring pushes the guide plate downward to reset.

2. The digging rice turning machine according to claim 1, characterized in that: The frame is fixedly connected with a gathering rod at one end close to the rotating shaft, and the gathering rod is used to gather the materials on the tipping wheel between the two rotating shafts.

3. The digging rice turning machine according to claim 1, characterized in that: One end of the shoveling plate close to the feeding mechanism is fixedly connected with a guide rod.

4. The digging rice turning machine according to claim 1, characterized in that: One end of the vehicle frame close to the pressing roller is fixedly connected with a connecting frame, and the connecting frame close to the supporting wheel is fixedly connected with a soil cutting knife through a supporting rod.

5. The digging rice turning machine according to claim 4, characterized in that: The rear end face of the support rod is fixedly connected to the support part, the upper surface of the support part is fixedly connected to the slide rod 2, the upper end of the slide rod 2 is fixedly connected to the limiting part, the outer sliding sleeve of the slide rod 2 is provided with a pushing piece, and the upper sleeve of the slide rod 2 is provided with an extrusion spring that pushes the pushing piece downward.

6. The digging rice turning machine according to claim 5, characterized in that: The front end surface of the pushing piece is slidably connected with the cutting piece through a sliding rod three, and a buffer spring is sleeved on the sliding rod three.

7. The digging rice turning machine according to claim 4, characterized in that: The side surface of the support rod is fixedly connected with a connecting rod, and one end of the connecting rod away from the support rod is fixedly connected with a scraper.

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