A beet seed threshing device

Abstract

The application relates to the technical field of seed threshing, and discloses a beet seed threshing device which comprises a feeding bin and further comprises a material falling grid, a material blocking grid and two beating assemblies. The material falling grid comprises a plurality of rod members arranged in the middle part of the feeding bin in the transverse direction, the middle part of each rod member is provided with a through sliding groove in the longitudinal direction, the material blocking grid comprises a plurality of sliding strips and a blocking rod fixedly connected to the two end parts of each sliding strip, the bottom of each sliding strip is provided with a flange and is fixedly connected through a connecting rod, at least one sliding strip is connected with an elastic member corresponding to the rod member, the two beating assemblies are arranged below the rod members and are respectively close to the two blocking rods of the sliding strips near the front side wall of the feeding bin, each beating assembly comprises a plurality of rake rods which are parallel to each other and have the same spacing, a swing arm connected with the lower end of each rake rod, a tension spring connected with the swing arm and the feeding bin respectively, an abutting rod and a driving member, and the side wall of the swing arm is connected with an abutting block abutting against the other end of the abutting rod. The beet seed can be fully and quickly threshed.

Description

Technical Field

[0001] This invention relates to the field of seed threshing technology, and in particular to a beet seed threshing device. Background Technology

[0002] Threshing after drying beet seeds is a core preliminary step in the large-scale, standardized production of modern beet seed industry. Its technological system stems from the dual driving forces of the unique biological characteristics of beet seeds and the needs of industry development. Beet seeds have a compound fruit structure; after maturity, they attach to the fruit spike as bulbs encasing the woody calyx. Fresh fruit spikes have high moisture content and a flexible texture; direct threshing easily leads to bulb breakage, calyx damage, and seed mixing. Furthermore, the high humidity environment easily causes seed mold, significantly reducing seed viability. Therefore, threshing must be carried out before threshing. Natural air drying or mechanical drying makes the fruit spikes and bulbs dry and brittle, allowing the calyx to bond more tightly with the seeds inside and the connection between the bulb and the pedicel to be easier to separate. This lays a solid foundation for efficient and low-loss threshing. The threshed beet seeds can retain the integrity of the bulb and the seeds inside to the maximum extent, meeting the needs of subsequent planting. At the same time, the pure threshed bulbs are also an essential raw material for beet seed pelleting. After subsequent processing such as polishing, grading, and coating, they can be made into pelleted seeds of uniform size and smooth surface, suitable for mechanized precision sowing.

[0003] In terms of sugar beet seed threshing methods, the traditional and common manual threshing method is not only labor-intensive and inefficient, but also difficult to meet the large-scale threshing needs of large-scale sugar beet planting areas. Therefore, it has been gradually replaced by mechanical equipment. Currently, agricultural threshing equipment for sugar beet seeds usually adopts a structure of vibrating screen combined with filter screen to achieve threshing. The vibrating screen usually includes a feed bin, a storage bin, and an eccentric shaft or eccentric block driving a vibrating disc. The high-speed rotation of the eccentric block or eccentric shaft applies vibration force to the dehydrated and dried sugar beet plants on the vibrating disc, causing the attached seeds to fall off. The fallen seeds are then screened through the filter screen.

[0004] Although existing vibrating screen threshing equipment can basically complete the threshing operation, compared with the traditional beating threshing method, it can only rely on vibration to remove seeds. For some seeds that are wrapped deep in the beet spike or mixed in the gaps between plants, it is difficult to remove them fully and quickly by relying solely on vibration. This can easily cause problems such as seed residue, incomplete separation, and impurities. Moreover, when the vibration frequency of the vibrating screen is high and continuous, it will seriously affect the quality of the removed seeds and further reduce the overall quality of seed processing. Summary of the Invention

[0005] This invention provides a beet seed threshing device that can achieve a thorough and rapid threshing effect for beet seeds.

[0006] This invention provides a sugar beet seed threshing device, including a feeding hopper, and further comprising: a discharge grid, a retaining grid, and two beating components. The discharge grid includes several horizontally arranged rods in the middle of the feeding hopper, with the spacing between the rods being less than the diameter of the sugar beet plant. A through groove is longitudinally formed in the middle of each rod. The retaining grid includes several sliding strips and retaining rods fixed to the two ends of the sliding strips. Each sliding strip is slidably connected to its corresponding through groove. Each sliding strip has a flange extending from its bottom and is fixed by a connecting rod. At least one sliding strip is connected to its corresponding rod by an elastic element. The two beating components are located below the rods and close to the front of the feeding hopper. At the two stops of the sliding bar on the wall, the beating assembly includes multiple parallel rakes with equal spacing, a swing arm connected to the lower end of each rake, a tension spring connected to the swing arm and the feed hopper respectively, a stop rod for driving the swing arm to rotate downwards, and a driving component. One end of the stop rod rotates with the front side wall of the feed hopper via a shaft. The left and right stop rods are asymmetrically arranged. The driving component is used to drive the left and right stop rods to rotate in the counterclockwise and clockwise directions respectively. The side wall of the swing arm is connected to a stop block that abuts against the other end of the stop rod, and its end rotates with the inner wall of the feed hopper via a pin and a connector. The left and right rakes are used to repeatedly beat the beet plants on the stop rods to the right and left respectively.

[0007] Preferably, the height of the shaft is higher than the height of the pin, and the distance between the two shafts is less than the distance between the two pins.

[0008] Preferably, when the stop lever is in the initial middle position, the axis of its connecting rod and the axis of the pin on the corresponding side are on the same vertical plane.

[0009] Preferably, a sliding groove is provided on the side of the storage silo near the feed silo, and a filter screen is horizontally set in the sliding groove. The filter screen slides longitudinally, and a return spring is fixedly connected to the bottom of the filter screen in the sliding groove. The bottom of the return spring is fixedly connected to the inner wall of the storage silo. A through-hole is provided on the inner wall of the storage silo above the filter screen in the horizontal direction. A blower is installed in one cavity, and the other cavity is connected to an external impurity collection box through a pipeline. On the left and right sides of the inner wall of the storage silo below the filter screen, there are top rods for intermittently impacting the filter screen upwards. The top rods are driven by a drive assembly to make impurities on the seeds or ear residues be lifted and collected.

[0010] Preferably, the storage bin has a protrusion extending laterally to the position of the top rod, and the top rod is inserted longitudinally through the protrusion and the two are slidably connected. The drive assembly includes: a rotating shaft, a half-tooth gear, a rack plate, and an elastic spring. The rotating shaft is inserted and rotatably connected to the front side wall of the storage bin. The half-tooth gear is sleeved and fixedly connected to the rotating shaft. The rack plate is fixedly connected to the side wall of the top rod and meshes with the half-tooth gear. One end of the elastic spring is fixedly connected to the protrusion, and the other end is fixed to the top rod through a connecting block. As the half-tooth gear rotates, it meshes with the rack plate to drive the top rod to extend downward, and the elastic spring is in a stretched state.

[0011] Preferably, two shafts extend forward out of the feed hopper, and the drive unit is located outside the feed hopper. The drive unit includes two first pulleys, two second pulleys, and two meshing gears. The two first pulleys are respectively fixedly sleeved on the two shafts. The two second pulleys are rotatably connected to the feed hopper through a rotating shaft that is inserted and fixedly connected. The two second pulleys are located between the two first pulleys. The two first pulleys and their adjacent corresponding second pulleys are connected by a first belt. The two meshing gears are respectively fixedly sleeved on the two rotating shafts and mesh with each other. One of the shafts is driven by a motor.

[0012] Preferably, a third pulley is also fitted and fixedly connected to the two shafts, the two rotating shafts extend out of the feed hopper, and each is fixedly fitted with a fourth pulley. The third pulley and the adjacent corresponding fourth pulley are connected by a second belt, so that when the motor drives the corresponding shaft to rotate, all rotating shafts can rotate simultaneously.

[0013] Preferably, the left and right side stops extend upwards towards the same side, and the distance between any two opposite stops is less than the distance between the feed inlets of the feed hopper.

[0014] Preferably, the connector is an L-shaped plate, with the end of the horizontal plate fixed to the front side wall of the feed hopper, the vertical plate extending upward, and the pin inserted through and rotatably connected to the vertical plate, so that the abutment does not contact the connector when rotating.

[0015] Preferably, both ends of each rod are welded and fixed by two fixing rods, which are slidably connected to the left and right side walls of the feed hopper.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the material discharge grid is used to block the sugar beet plants from falling into the feed hopper, and the through-slide groove is used to allow the material discharge grid to slide horizontally along the through-slide groove of each corresponding rod. This allows the sugar beet plants falling into the frame cavity formed by the baffle and the sliding strip to be moved left and right by the left and right inertial force, which facilitates the subsequent beating by the beating component. The beating component is used to repeatedly beat the sugar beet plants left and right in sequence to simulate the effect of manually beating the plants. Compared with the threshing process of the traditional vibrating screen, the present invention can fully and quickly achieve the effect of seed detachment. During the process, the plants will move multiple times, so it is not easy to cause problems such as seed residue or incomplete separation mixed in the plants, thus ensuring the overall quality of the threshed seeds.

[0017] Specifically, the bottom of each sliding bar is fixed by a connecting rod, ensuring an integrated connection between the sliding bars. This allows them to be struck by the rapidly rotating upward rake, driving the sliding bars and the stop bar to slide horizontally to one side and generating vibration. This achieves multi-dimensional threshing of seeds in the plant. An elastic element ensures the sliding bars return to their original position when sliding horizontally left or right. A stop rod rotates within the feed hopper via a shaft. The rotation of the stop rod contacts and abuts against the corresponding stop blocks on the swing arms, causing the swing arms to rotate in the same direction around the pin. Due to the distance between the pin and the shaft in terms of height and position, after the stop rod drives the swing arms to rotate downwards to a certain position, the stop rod and the stop blocks disengage. At this point, the tension spring... Under the action of the mechanism, the swing arm and corresponding rake rod are rapidly rotated upwards and toward the adjacent stop bar, thereby patting the beet plant. The circumferentially rotating stop bar will re-contact the stop block on the corresponding swing arm, repeating the above action. By limiting the asymmetrical setting of the left and right stop bars, the rake rods on the left and right sides can complete the patting action in sequence. Specifically, when the left swing arm rotates counterclockwise to below the rod, the rake rods on the right swing arm have already completed the patting action. After the left rake rod completes the patting action, the right swing arm is pushed downwards and rotated by the right stop bar, so that the beet plant can be patted to the right stop bar by the left rake rod, and then patted to the left stop bar by the right rake rod, thus simulating the effect of manually patting the plant. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure of a beet seed threshing device provided in an embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of a beet seed threshing device provided in an embodiment of the present invention; Figure 3 for Figure 1 A magnified view of part A in the middle; Figure 4 This is a schematic diagram of the multi-state structure of the baffle bar of a beet seed threshing device provided in an embodiment of the present invention; Figure 5 This is a top-view structural diagram of the feed grid in a beet seed threshing device provided in an embodiment of the present invention; Figure 6 for Figure 5 A magnified view of part B in the middle section; Figure 7 This is a partial structural schematic diagram of a beet seed threshing device provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the connecting component structure of a beet seed threshing device from a side view, provided in an embodiment of the present invention. Figure 9 for Figure 1 A magnified view of a portion of section C; Figure 10 for Figure 2 A magnified view of a portion of section D; Figure 11 This is a schematic diagram of the external structure of a beet seed threshing device provided in an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Feed hopper; 2. Discharge grid; 21. Rod; 211. Through chute; 3. Bar grid; 31. Sliding bar; 32. Stop bar; 33. Flange; 34. Connecting rod; 35. Elastic element; 4. Beating assembly; 41. Rake bar; 42. Swing arm; 43. Tension spring; 44. Push rod; 45. Drive component; 451. First pulley; 452. Second pulley; 453. First belt; 454. Meshing gear; 46. Shaft; 47. Abutment block; 48. Pin shaft; 49. Connecting piece; 5. Storage bin; 51. Sliding groove; 52. Filter screen; 53. Return spring; 54. Through port; 55. Blower; 56. Top rod; 57. Drive assembly; 571. Rotating shaft; 572. Half gear; 573. Rack plate; 574. Elastic spring; 58. Protrusion; 59. Connecting block; 6. Third pulley; 7. Fourth pulley; 8. Second belt; 9. Fixing rod. Detailed Implementation

[0021] The following detailed description of a specific embodiment of the present invention is provided in conjunction with the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] refer to Figure 1 , Figure 3 and Figure 4 This invention provides a beet seed threshing device, including a feeding hopper 1, and further including: a discharge grid 2, a baffle grid 3, and two beating components 4. The discharge grid 2 includes several horizontally arranged rods 21 in the middle of the feeding hopper 1, the spacing between each rod 21 being smaller than the diameter of the beet plant. A through groove 211 is longitudinally formed in the middle of each rod 21. The baffle grid 3 includes several sliding strips 31 and baffles 32 fixed to the two ends of each sliding strip 31. Each sliding strip 31 is slidably connected to each through groove 211. Each sliding strip 31 has a flange 33 extending from its bottom and fixedly connected by a connecting rod 34. At least one sliding strip 31 is connected to a corresponding rod 21 by an elastic element 35. The two beating components 4 are located below the rods 21 and near the two baffles 32 of the sliding strips 31 on the front side wall of the feeding hopper 1. Figure 7 As shown, the beating assembly 4 includes multiple parallel rakes 41 with equal spacing, a swing arm 42 connected to the lower end of each rake 41, a tension spring 43 connected to the swing arm 42 and the feed hopper 1 respectively, a stop rod 44 for driving the swing arm 42 to rotate downwards towards the rod 21, and a drive member 45. One end of the stop rod 44 rotates with the front side wall of the feed hopper 1 via a shaft 46. The left and right stop rods 44 are asymmetrically arranged. The drive member 45 is used to drive the left and right stop rods 44 to rotate in the counterclockwise and clockwise directions respectively. The side wall of the swing arm 42 is connected to a stop block 47 that abuts against the other end of the stop rod 44, and its end rotates with the inner wall of the feed hopper 1 via a pin 48 and a connecting member 49. The left and right rakes 41 are used to repeatedly beat the beet plants on the baffle 32 to the right and left respectively.

[0024] In the above embodiments, the material drop grid 2 is used to block the beet plants from falling into the feed bin 1. The through groove 211 is used to allow the material blocking grid 3 to slide horizontally along the through groove 211 of each corresponding rod 21. This allows the beet plants falling into the frame cavity formed by the baffle 32 and the sliding strip 31 to be moved left and right by the left and right inertial forces, which facilitates the subsequent beating by the beating component 4. The beating component 4 is used to repeatedly beat the beet plants left and right in sequence to simulate the effect of manually beating the plants. Compared with the threshing process of the traditional vibrating screen, the present invention can fully and quickly complete the seed detachment. During the process, the plants will move multiple times, so it is not easy to cause problems such as seed residue or incomplete separation mixed in the plants, thus ensuring the overall quality of the threshed seeds.

[0025] Specifically, the bottom of each sliding bar 31 is fixed by a connecting rod 34, ensuring the integral connection of each sliding bar 31. It can also be impacted by the rapidly rotating upward rake rod 41, achieving the driving purpose of the sliding bar 31 and the stop rod 32 sliding horizontally to one side and generating vibration, thus achieving a multi-dimensional threshing effect on the seeds in the plant. The elastic element 35 can reset each sliding bar 31 when it slides horizontally left and right. The abutment rod 44 can rotate within the feed hopper 1 via the shaft 46. The rotation of the abutment rod 44 can connect... The abutment 44 contacts and abuts against the abutment block 47 on the corresponding side of the swing arm 42, thereby causing the swing arm 42 to rotate in the same direction around the pin 48. Since there is a gap in height and position between the pin 48 and the shaft 46, after the abutment rod 44 drives the swing arm 42 to rotate downward to a certain position, the abutment rod 44 and the abutment block 47 will disengage. At this time, under the action of the tension spring 43, the swing arm 42 and the corresponding rake rod 41 are caused to quickly rotate upward and towards the side of the adjacent stop bar 32, thereby patting the beet plant. The circumferentially rotating abutment rod 44 will re-contact the abutment block 47 on the corresponding swing arm 42, repeating the process. The above actions, by limiting the asymmetrical setting of the two abutment rods 44 on the left and right, enable the rake rods 41 on the left and right sides to complete the patting action sequentially. Specifically, when the left swing arm 42 rotates counterclockwise to below the rod 21, the rake rods 41 on the right swing arm 42 have already completed the patting action. After the left rake rods 41 have completed the patting action, the right swing arm 42 is abutted and rotated downwards by the right abutment rod 44, so that the beet plant can be patted by the left rake rod 41 to the right stop 32, and then patted by the right rake rod 41 to the left stop. There are 32 locations to simulate the effect of manually patting plants. The tension springs 43 in this invention are detachable, and different types of seeds can be used to replace the tension springs 43 with different elasticities to increase the applicability of the equipment. At the same time, each sliding bar 31 is slidably connected to each through groove 211. During actual movement, the sliding bar 31 will not slide completely along the trajectory path of the through groove 211. When the threshed seeds fall into the through groove 211, they will also fall from the hollow part due to the vibration of the rotating rake 41, so as to avoid the risk of jamming.

[0026] Further, refer to Figure 3 , Figure 4 and Figure 8 The height of shaft 46 is higher than the height of pin 48, and the distance between the two shafts 46 is less than the distance between the two pins 48.

[0027] In the above embodiments, by limiting the height of the shaft 46 to be higher than the height of the pin 48, and the distance between the two shafts 46 to be less than the distance between the two pins 48, it is possible to achieve that after the left abutment rod 44 rotates counterclockwise or the right abutment rod 44 rotates clockwise to a specific angle, the abutment rod 44 will disengage from the abutment block 47 on the corresponding swing arm 42. The swing arm 42, lacking the limiting abutment force, will quickly rotate towards the adjacent connecting rod 34 under the action of the tension spring 43. During the process, each rake rod 41 will pat the beet plants piled up at the corresponding baffle 32 towards the opposite baffle 32.

[0028] Further, refer to Figure 3 and Figure 4 When the stop lever 32 is in the initial middle position, the axis of its connecting rod 34 and the axis of the pin 48 on the corresponding side are on the same vertical plane.

[0029] In the above embodiments, by limiting the stop bar 32 to the initial middle position, the axis of its connecting rod 34 and the axis of the corresponding pin 48 are located on the same vertical plane, so that the rake bar 41 can still collide with the connecting rod 34 when it is rotated upward to at least the vertical state.

[0030] Further, refer to Figure 1 and Figure 9 A sliding groove 51 is provided on the side of the storage bin 5 near the feed bin 1. The filter screen 52 is horizontally set in the sliding groove 51 and slides longitudinally. A return spring 53 is fixedly connected to the bottom of the filter screen 52 in the sliding groove 51. The bottom of the return spring 53 is fixedly connected to the inner wall of the storage bin 5. A through-hole 54 is provided on the inner wall of the storage bin 5 above the filter screen 52 in the horizontal direction. A blower 55 is provided in one cavity, and the other cavity is connected to the external impurity collection box through a pipeline. On the left and right sides of the inner wall of the storage bin 5 below the filter screen 52, there are top rods 56 for intermittently impacting the filter screen 52 upwards. The top rods 56 are driven by the drive assembly 57 to make the impurities on the seeds or the ear residues be lifted and collected.

[0031] In the above embodiments, when the two push rods 56 simultaneously lift the filter screen 52, the seeds mixed with impurities or ear residues are lifted upwards. At this time, the blower 55 will blow these impurities or residues into the cavity on the opposite side and send them to the collection box through the pipeline to achieve the purpose of removing impurities, so that the seeds can be threshed more efficiently and with higher quality.

[0032] Further, refer to Figure 9The storage bin 5 has a protrusion 58 extending laterally from the position corresponding to the top rod 56. The top rod 56 is inserted longitudinally through the protrusion 58 and the two are slidably connected. The drive assembly 57 includes: a rotating shaft 571, a half gear 572, a rack plate 573, and an elastic spring 574. The rotating shaft 571 is inserted and rotatably connected to the front side wall of the storage bin 5. The half gear 572 is sleeved and fixed to the rotating shaft 571. The rack plate 573 is fixed to the side wall of the top rod 56 and meshes with the half gear 572. One end of the elastic spring 574 is fixed to the protrusion 58, and the other end is fixed to the top rod 56 through a connecting block 59. As the half gear 572 rotates, it meshes with the rack plate 573 to drive the top rod 56 to extend downward, and the elastic spring 574 is in a stretched state.

[0033] In the above embodiments, as the half-tooth gear 572 rotates, it can mesh with the teeth on the rack plate 573, causing the push rod 56 to slide downward. At this time, the elastic spring 574 is stretched. When the push rod 56 moves down to the limit position, the missing tooth of the half-tooth gear 572 corresponds exactly to the rack plate 573. At this time, under the action of the elastic spring 574, the push rod 56 is launched upward, thereby completing the lifting action of the filter screen 52.

[0034] Further, refer to Figure 2 Two shafts 46 extend forward from the feed hopper 1. A drive unit 45 is positioned outside the feed hopper 1. The drive unit 45 includes two first pulleys 451, two second pulleys 452, and two meshing gears 454. The two first pulleys 451 are respectively fixedly sleeved on the two shafts 46. The two second pulleys 452 are rotatably connected to the feed hopper 1 via a fixed rotating shaft. The two second pulleys 452 are located between the two first pulleys 451. Each of the two first pulleys 451 and its adjacent corresponding second pulley 452 is connected via a first shaft 451. A belt 453 is wound around and connected, and two meshing gears 454 are respectively fixedly sleeved on two rotating shafts. The two meshing gears 454 mesh with each other. One shaft 46 is driven by a motor. A third pulley 6 is also sleeved and fixedly connected on the two shafts 46. Two rotating shafts 571 extend out of the feed hopper 1 and are each fixedly sleeved with a fourth pulley 7. The third pulley and the adjacent corresponding fourth pulley 7 are wound around and connected by a second belt 8, so that when the motor drives the corresponding shaft 46 to rotate, all rotating shafts 571 and rotating shafts can rotate simultaneously.

[0035] In the above embodiments, through this transmission method, a single motor can drive the two left and right shafts 46 to rotate in opposite directions, realizing the alternating action of the two side striking components 4. The two meshing gears 454 ensure strict synchronization and reversal of the left and right rotation directions through meshing, ensuring the accuracy of the striking sequence. The transmission system has a compact layout, which is convenient for external installation and maintenance. A single motor simultaneously drives the striking component 4 and the push rod 56 drive component 57, realizing integrated power input for the whole machine, reducing the number of motors, reducing energy consumption and equipment costs. Through the transmission ratio design, the matching relationship between the striking frequency and the screen vibration frequency can be flexibly adjusted. At the same time, as the shaft 46 rotates, it will also synchronously drive the two half-tooth gears 572 to rotate in opposite directions, thereby achieving the purpose of synchronous displacement of the push rod 56, realizing the purpose of a single motor to complete the coordinated drive of multiple components.

[0036] Further, refer to Figure 1 Each of the left and right side stops 32 extends upwards towards the same side, and the distance between any two opposite stops 32 is less than the distance between the feed inlets of the feed bin 1.

[0037] In the above embodiments, the inclined setting of the baffle 32 can guide the plants to gather towards the center during the threshing process, preventing the plants from sliding to the sides. The distance between the baffle 32 and the feed inlet is smaller than the distance between the baffles, ensuring that the plants are always within the effective threshing range and preventing missed threshing. The inclined structure also facilitates the natural rolling of the plants during threshing, making the threshing more uniform.

[0038] Further, refer to Figure 8 The connector 49 is an L-shaped plate. The end of the horizontal plate is fixed to the front side wall of the feed hopper 1, and the vertical plate extends upward. The pin 48 is inserted through the vertical plate and the two are rotatably connected. The abutment 44 does not contact the connector 49 when it rotates.

[0039] In the above embodiments, the L-shaped plate can be used to prevent the pin 48 from rotating.

[0040] Further, refer to Figure 5 Each rod 21 is fixed at both ends by two fixing rods 9, which are slidably connected to the left and right side walls of the feed hopper 1.

[0041] In the above embodiments, the welding of the fixing rod 9 ensures that the spacing between the rods 21 is accurate and stable, and the sliding connection design enables the upward lifting of the baffle 32 to facilitate the removal of the beet plants after threshing. Preferably, a visual observation window is provided on the front side of the feeding hopper 1 at the position corresponding to the baffle 32 to facilitate the observation of the beet threshing status by personnel.

[0042] A protective housing is provided on the outer wall of the front side of the feed hopper 1 at the location corresponding to the drive component 45. The cover plate at the front end of the protective housing is detachably connected by bolts, and the motor housing is fixedly connected to the cover plate by the motor base.

[0043] In summary, compared with the prior art, the present invention has at least the following significant advantages: Innovative threshing method: Abandoning the traditional vibrating screen that relies solely on vibration for threshing, it adopts an alternating beating structure that simulates manual beating, applying directional impact force to the sugar beet plants, so that the seeds wrapped deep in the ears and in the gaps between the plants can be fully threshed, resulting in more thorough threshing and less residue.

[0044] Multi-dimensional force synergy: Vertical impact force is provided by the tapping component 4, lateral displacement is provided by the horizontal sliding of the baffle grid 3, and micro-vibration is generated by the reset of the elastic element 35. The three forces work together to achieve multi-dimensional and all-round threshing.

[0045] The dual-sided alternating beating design features two asymmetrical beating components on the left and right sides, which achieve alternating beating, causing the plant to roll and shift continuously during the beating process. This ensures that all parts are evenly stressed and avoids excessive beating in certain areas that could damage the seeds.

[0046] Integrated impurity removal function: After threshing, the vibration screening and air separation functions are directly integrated. The intermittent impact of the top rod 56 combined with the airflow of the blower 55 can effectively remove light impurities such as calyx fragments and dust, improve seed cleanliness, and simplify subsequent processing procedures.

[0047] Highly efficient integrated transmission system: Through the combination of pulleys and gears, a single motor simultaneously drives the striking component 4 and the push rod 56 drive component 57, realizing integrated power input for the whole machine, reducing energy consumption and manufacturing costs.

[0048] Compact structure and easy maintenance: The components are rationally laid out, and key components adopt sliding connection or detachable design, which facilitates daily maintenance and replacement of vulnerable parts.

[0049] This device adopts a left-right alternating timing threshing working mode. The left rake first completes the rebound threshing, and the right rake takes over the action during the swing arm reset process, so as to continuously roll and thresh the sugar beet plants in a cycle.

[0050] The relevant calculations provided in this embodiment are as follows: The expression for the rebound angular velocity of rake 41 is: ; in, The angular velocity of the rake handle 41 upon impact and rebound; This represents the initial maximum deflection angle of the swing arm; The effective duration of a single tap.

[0051] The expression for the impact linear velocity at the end of the rake 41 is: in, The impact linear velocity at the end of the rake 41; This refers to the effective working length of the rake handle 41.

[0052] The expression for the phase difference when tapping alternately from left to right: in, The phase difference between the left and right slapping motions; This represents the total duration of a single cycle; This refers to the angular velocity of the drive shaft.

[0053] The expression for the energy of a single impact is: in, This refers to the impact energy of a single slap. The moment of inertia of the rake arm system 41 is given.

[0054] This device employs an alternating left-right timing threshing mode. The left rake bar 41 first completes the rebound threshing, and the right rake bar 41 takes over the action during the swing arm's reset process, cyclically achieving continuous tumbling and threshing of the sugar beet plants. The specific values ​​in this embodiment are as follows: Effective length of rake handle 41 ; Initial deflection angle of the swing arm ; Patting time ; Drive shaft angular velocity ; System moment of inertia value .

[0055] Specifically, the rebound angular velocity: Impact linear velocity: Left and right phase difference: Impact energy of a single slap: Based on the above calculations, the left rake handle 41: =0 s triggers the flapping action, right rake lever 41: =0.12 s relay patting, cycle: =0.24 s, achieving continuous operation of left tap, reset, right tap and then reset, with a tapping frequency of 4.17 Hz, where, The impact energy is just greater than the adhesion between the beet ears and seeds, which can shake off the seeds intact without shattering them. The continuous operation of left-side impact, reset, right-side impact and reset makes the ears roll left and right 4.17 times per second, receiving impact from all directions without blind spots. All seeds in the gaps of the ears fall off. The overall threshing rate of beet seeds with this device can reach 97.5%, the seed breakage rate is only 0.32%, the seed residue rate in the ears is 1.2%, and the hourly processing capacity is 120 kg / h. Compared with traditional vibrating threshing equipment, the threshing rate is increased by 11.2%, the seed residue rate is reduced by 11.5%, the seed breakage rate is reduced by 1.53%, and the overall processing efficiency is increased by 43%, with good results.

[0056] Usage and working principle: First, the dried beet plants are fed into the feeding hopper 1 and supported by multiple rods 21 with spacing smaller than the diameter of the plant stem, suspending the plants above the rods 21. Then, the drive unit 45 drives two asymmetrically arranged abutment rods 44 to rotate counterclockwise and clockwise respectively, alternately abutting against the abutment blocks 47 on the corresponding swing arms 42. This causes the swing arms 42 to rotate downwards against the tension of the tension springs 43. When the abutment rods 44 disengage from the abutment blocks 47, the swing arms 42 quickly rebound under the action of the springs, causing multiple rake rods 41 on them to beat upwards rapidly. The left-side beating component 4 beats the plants to the right to the right stop bar 32, while the right-side beating component 4 beats the plants to the left to the left stop bar 32. This alternating left and right movement simulates the action of manual beating. Simultaneously, during the beating process, the sliding strip 31 of the baffle grid 3 can slide left and right along the through groove 211 under the action of the beating force and be reset by the elastic element 35, so that the plant is constantly displaced during the beating, causing the beet seeds to fall off the ears. After falling off, the seeds fall onto the filter screen 52 in the storage bin 5 below. Through the intermittent cooperation of the half-tooth gear 572 and the rack plate 573, the push rod 56 is driven to hit the filter screen 52 upward, causing the screen to vibrate and lift up light impurities and ear residues in the seeds. At this time, the blower 55 blows air from one side through port 54, blowing the lifted impurities to the opposite through port 54 and collecting them through the pipeline to the external impurity collection box, realizing the separation of seeds and impurities, and finally completing the entire process of beet seed threshing that is efficient, low-loss and simulates the effect of manual beating.

[0057] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A beet seed threshing device, comprising a feeding hopper, characterized in that, Also includes: The feed grid includes several horizontally arranged rods in the middle of the feed hopper, the spacing between each rod is smaller than the diameter of the beet plant, and a through groove is formed in the middle of each rod along the longitudinal direction. The baffle grid includes several sliding bars and a stop bar fixed to both ends of the sliding bars. Each sliding bar is slidably connected to a through groove. Each sliding bar has a flange extending from its bottom, and each flange is fixedly connected by a connecting rod. At least one sliding bar is connected to a corresponding rod by an elastic element. Two striking components are located below the rod and near the two stops of the sliding bar on the front sidewall of the feed hopper. Each striking component includes multiple parallel rakes with equal spacing, a swing arm connected to the lower end of each rake, a tension spring connected to the swing arm and the feed hopper, a stop rod for driving the swing arm to rotate downwards from the rod, and a driving component. One end of the stop rod rotates with the front sidewall of the feed hopper via a shaft. The left and right stop rods are asymmetrically arranged. The driving component drives the left and right stop rods to rotate counterclockwise and clockwise, respectively. The sidewall of the swing arm is connected to a stop block that abuts against the other end of the stop rod, and its end rotates with the inner wall of the feed hopper via a pin and a connector. The left and right rakes are used to repeatedly strike the beet plants on the stop rods to the right and left, respectively.

2. The beet seed threshing device as described in claim 1, characterized in that, The height of the shaft is higher than the height of the pin, and the distance between the two shafts on the left and right is less than the distance between the two pins on the left and right.

3. The beet seed threshing device as described in claim 2, characterized in that, When the stop bar is in the initial middle position, the axis of its connecting rod and the axis of the pin on the corresponding side are on the same vertical plane.

4. The beet seed threshing device as described in claim 1, characterized in that, A sliding groove is provided on one side of the storage silo near the feed silo. The filter screen is horizontally set in the sliding groove and slides longitudinally. A return spring is fixedly connected to the bottom of the filter screen in the sliding groove. The bottom of the return spring is fixedly connected to the inner wall of the storage silo. A through-hole is provided on the inner wall of the storage silo above the filter screen in the horizontal direction. A blower is installed in one cavity, and the other cavity is connected to an external impurity collection box through a pipeline. On the left and right sides of the inner wall of the storage silo below the filter screen, there are top rods for intermittently impacting the filter screen upwards. The top rods are driven by a drive assembly to make impurities on the seeds or ear residues be lifted and collected.

5. The beet seed threshing device as described in claim 4, characterized in that, The storage hopper has a protrusion extending laterally from the position corresponding to the top rod. The top rod is inserted longitudinally through the protrusion and the two are slidably connected. The drive assembly includes: A rotating shaft is inserted into and rotatably connected to the front side wall of the storage bin; A half-tooth gear is sleeved and fixedly connected to the rotating shaft; A rack plate is fixedly connected to the side wall of the top rod, and the rack plate meshes with a half-tooth gear; The elastic spring is fixed at one end to the protrusion and at the other end to the push rod via a connecting block. As the half-tooth gear rotates, it meshes with the rack plate to drive the push rod to extend downward, and the elastic spring is in a stretched state.

6. The beet seed threshing device as described in claim 5, characterized in that, The two shafts extend forward out of the feed hopper, and the drive unit is located outside the feed hopper. The drive unit includes: Two first pulleys are respectively fixedly sleeved on two shafts; The two second pulleys are rotatably connected to the feed hopper through a rotating shaft that is inserted and fixed. The two second pulleys are located between the two first pulleys. The two first pulleys and their adjacent corresponding second pulleys are all connected by a first belt. Two meshing gears are fixedly mounted on two rotating shafts, and the two meshing gears mesh with each other. One of the shafts is driven by a motor.

7. A beet seed threshing device as described in claim 6, characterized in that, A third pulley is also fitted and fixedly connected to the two shafts. The two rotating shafts extend out of the feed hopper and are each fixedly fitted with a fourth pulley. The third pulley and the adjacent corresponding fourth pulley are connected by a second belt, so that when the motor drives the corresponding shaft to rotate, all rotating shafts can rotate simultaneously.

8. The beet seed threshing device as described in claim 1, characterized in that, The baffles on the left and right sides extend upwards at an angle toward the same side, and the distance between any two opposing baffles is less than the distance between the feed inlets of the feed hopper.

9. A beet seed threshing device as described in claim 1, characterized in that, The connector is an L-shaped plate. The end of the horizontal plate is fixed to the front side wall of the feed hopper, and the vertical plate extends upward. The pin is inserted through the vertical plate and the two are rotatably connected. The abutment does not contact the connector when it rotates.

10. A beet seed threshing device as described in claim 1, characterized in that, Each of the rods is fixed at both ends by two fixing rods welded together, and the fixing rods are slidably connected to the left and right side walls of the feed hopper.

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