A new type of double hull huller

Abstract

The present application relates to husking machine related technical field, disclose a kind of novel double-body husking machine, including the lower box including mechanical component shell, feeding device and rice hulling box, the mechanical component shell top is equipped with driving component, the mechanical component shell inside is provided with transmission component, the rice hulling box inside is equipped with shelling component, the driving component will drive the transmission component rotation, the transmission component will drive the shelling component realizes rice shelling;The present application is through bulk material flow guide assembly, bulk material flow guide assembly is as the upstream core structure of spiral feeding device, with fixed plate as stable support base, middle part is provided with the pivot that can rotate flexibly, forms the integrated architecture of "support-transmission". Multiple groups of helical blades are designed on the upper end of the pivot, and the helical angle and blade width of each group of helical blades are optimized and calculated to ensure that the rice can be uniformly guided when it is contacted.

Description

Technical Field

[0001] This invention belongs to the technical field of rice hullers, and more specifically, relates to a novel double-body rice huller. Background Technology

[0002] In the grain processing industry, rice hullers are key equipment for converting paddy into brown rice, and their performance directly affects the efficiency and quality of grain processing. With the increasing grain output year by year and the rising market demand for high-quality brown rice, technological innovation in rice hullers is urgently needed. However, existing rice hullers have the following shortcomings: Traditional rice hullers suffer from numerous problems in the feeding stage. Most machines use simple funnels for feeding, causing paddy to easily accumulate below the inlet, forming a cone shape. This results in uneven feeding, significantly impacting the stability and continuity of subsequent hulling processes. Furthermore, when the amount of paddy in the funnel changes, the feeding speed fluctuates significantly under gravity. When the feeding amount is low, the paddy is easily crushed into broken rice by the hulling structure, resulting in a significant reduction in brown rice quality and failing to meet the market's stringent requirements for high-quality brown rice. Due to design flaws in the feeding structure, coupled with the inherent characteristics of paddy, the blockage rate of the feeding channel is often as high as 30%, forcing frequent machine shutdowns for cleaning, severely restricting production efficiency and increasing production costs. In addition, traditional rice hullers require complex unblocking and metering devices to achieve feeding and metering functions. This not only results in a bulky equipment structure but also poor coordination between the devices, making it difficult to guarantee a stable feed amount for each batch during the hulling process. This leads to large fluctuations in hulling efficiency and low paddy integrity.

[0003] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide a new type of double-body rice huller, in order to achieve a more practical and valuable purpose. Summary of the Invention

[0004] This invention provides a novel dual-body rice huller to overcome the aforementioned defects in the prior art.

[0005] The purpose and effectiveness of this novel dual-body rice huller are achieved through the following specific technical means: A novel double-body rice huller includes a lower housing, which comprises a mechanical component shell, a feeding device, and a rice hulling box. A driving component is provided above the mechanical component shell, and a transmission component is provided inside the mechanical component shell. A hulling component is provided inside the rice hulling box. The driving component drives the transmission component to rotate, and the transmission component drives the hulling component to achieve rice hulling. The feeding device is provided with a cylindrical inlet and a column. The feeding device includes a feeding cylinder, which is provided with a cylindrical inlet inside. A column is fixedly connected to the lower end of the cylindrical inlet. A feeding conveying channel is provided inside the column. A spiral feeding device is fixedly installed inside the feeding conveying channel. The spiral feeding device includes a bulk material guiding component, a reciprocating telescopic guiding device, and an extrusion feeding device. The bulk material guiding component is fixedly installed at the upper end of the reciprocating telescopic guiding device, and the extrusion feeding device is fixedly connected at the lower end of the reciprocating telescopic guiding device. The bulk material guiding component drives the reciprocating telescopic guiding device to perform reciprocating telescopic movements to convey and feed the material through the flowability of the material. Subsequently, the extrusion feeding device conveys and dredges the material through the reciprocating telescopic guiding device.

[0006] In a further technical solution, the bulk material guiding assembly includes a fixed plate, a rotating shaft is rotatably provided through the middle of the fixed plate, a spiral blade is provided at the upper end of the rotating shaft, and a spiral feeding blade is fixedly connected to the end of the rotating shaft. The spiral feeding blade is located at the inlet of the cylindrical inlet.

[0007] A further technical solution includes a connecting shaft, the upper end of which is fixedly connected to the rotating shaft. A first circular plate, a central rotating plate, and a second circular plate are sequentially arranged through the outer side of the connecting shaft from top to bottom. The first and second circular plates are fixedly connected to the connecting shaft. The central rotating plate is rotatably mounted on the outer side of the connecting shaft. A groove is fixedly connected to the front end of the central rotating plate, and a ball is provided in the groove. An extension guide rod is fixedly connected to the outer side of the ball. The extension guide rod is arranged parallel to the connecting shaft. A clamping plate is fixedly installed at the front end of the extension guide rod. A telescopic sleeve is slidably provided at the lower end of the connecting shaft, and the clamping plate is fixedly connected to the outer side of the telescopic sleeve.

[0008] In a further technical solution, the extrusion delivery device includes a first circular plate, a second circular plate, and a third circular plate. The second and third circular plates are arranged sequentially below the first circular plate. A plurality of extrusion elastic airbags are arranged in a ring array between the first and second circular plates. Support springs are wrapped around the outside of the extrusion elastic airbags. A plurality of return springs are arranged between the second and third circular plates. A plurality of extrusion guide rods are arranged outside the return springs. The positions of the extrusion guide rods and the return springs correspond to the extrusion elastic airbags.

[0009] A further technical solution includes a through hole at the center of the first circular plate, the second circular plate, and the third circular plate; the first circular plate is fixedly connected to the wall of the cylindrical column; a recessed pad is fixedly connected to the center of the first circular plate; a circular material inlet is provided in the center of the recessed pad; a circular folding plate is fixedly installed above the circular material inlet; a discharge baffle is fixedly connected inside the through hole of the first circular plate, the second circular plate, and the third circular plate; several sets of air jets are provided on the first circular plate; the air jets communicate with the interior of the compression elastic airbag; and a one-way valve is provided on the air jets.

[0010] In a further technical solution, a connecting guide rod is fixedly connected to the lower end of the telescopic sleeve, and a circular cylinder is fixedly connected to the end of the connecting guide rod. The circular cylinder has an arc-shaped opening on the side near the discharge baffle, and a discharge port is provided on the discharge baffle. The circular cylinder slides within the through hole.

[0011] A further technical solution includes a vibration cavity inside the circular feed inlet, with multiple sets of hammering devices arranged in a ring array inside the vibration cavity. The hammering devices are arranged correspondingly to the extrusion guide rod. Each hammering device includes a limiting sleeve, with a piston plate slidably disposed inside the limiting sleeve. A compression spring is disposed at the upper end of the piston plate, and a connecting post is fixedly connected to the end of the compression spring. An extension plate is fixedly connected to the end of the connecting post, and a top ball is fixedly connected to the extension plate. An extrusion interface is disposed below the limiting sleeve, and the extrusion guide rod is connected to the piston plate through the extrusion interface.

[0012] In a further technical solution, the transmission component includes a first drive wheel and a second drive wheel, and a shell-removing component, which is a rubber roller, is fixedly connected to the output ends of the first drive wheel and the second drive wheel; the transmission component also includes a second auxiliary wheel and a first auxiliary wheel, and an adjusting motor is provided on the outer side of the second auxiliary wheel, which is used to adjust the distance between the second auxiliary wheel and the second drive wheel.

[0013] A further technical solution is provided, wherein a discharge device is fixedly connected to the outside of the lower box, a discharge channel is provided inside the discharge device, a shell removal outlet is provided outside the discharge channel, and the shell removal outlet is connected to the inside of the discharge device; a discharge air vent is provided on the outside of the lower end of the feed cylinder, and the discharge air vent is connected to the inside of the discharge device.

[0014] In a further technical solution, the driving component includes a drive motor, a first belt connecting the output end of the drive motor to the first drive wheel and the first auxiliary wheel, a second belt connecting the output end of the drive motor to the second auxiliary wheel, and a protective cover fixedly connected to the outer side of the output end of the drive motor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention discloses a novel dual-body rice huller. It incorporates a material guiding assembly, which serves as the upstream core structure of the spiral feeding device. Supported by a fixed plate, the assembly features a flexibly rotating shaft running through its center, forming an integrated "support-transmission" architecture. The upper end of the shaft features multiple sets of staggered spiral blades, each with optimized helix angle and blade width to ensure uniform flow of the rice grains upon contact. The end of the shaft is fixedly connected to spiral feeding blades, which employ an arc-shaped curved surface design with rounded edges and are precisely positioned at the cylindrical inlet to directly receive the rice grains entering from the feed cylinder. Through meticulous mechanical design, the entire assembly abandons the traditional single-blade guiding method, constructing a dual-layer guiding system of "initial blade guidance + secondary spiral blade diffusion."

[0016] This invention discloses a novel double-body rice huller. It incorporates a reciprocating telescopic guide device, which serves as the central transmission core of the screw feeding device. The connecting shaft acts as the main power transmission shaft, with its upper end fixedly connected to the rotating shaft of the bulk material guide assembly, achieving seamless power connection between "upstream guidance and midstream telescopic movement." From top to bottom, a first circular plate, a middle rotating plate, and a second circular plate are sequentially mounted on the outer side of the connecting shaft. The first and second circular plates are connected to the connecting shaft by a key and rotate synchronously with it. The middle rotating plate is rotatably mounted on the outer side of the connecting shaft via a bearing, forming a transmission structure where a fixed rotating component drives a driven rotating component. A groove is fixedly formed at the front end of the middle rotating plate, housing a flexibly rolling ball. An extension guide rod is connected to the outer side of the ball, arranged parallel to the connecting shaft. A clamping plate is fixed at the front end and rigidly connected to the outer side of a telescopic sleeve slidably positioned at the lower end of the connecting shaft. This constructs a conversion mechanism between "rotational motion" and "linear telescopic motion," eliminating the need for an additional motor drive and achieving telescopic movement solely through the power transmitted from the upstream bulk material guide assembly.

[0017] The present invention discloses a novel double-body rice huller, which is equipped with an extrusion and feeding device. The extrusion and feeding device serves as the downstream execution core of the spiral feeding device and adopts a composite structure design of "three-layer circular plate + multi-component collaboration". The first, second, and third circular plates are arranged sequentially from top to bottom, forming a vertically layered working space. Between the first and second circular plates, multiple sets of extrusion elastic airbags are arranged in a ring array, with support springs wrapped around the outside of the airbags to ensure rapid reset after extrusion. Between the second and third circular plates, a reset spring and an extrusion guide rod are installed, with the extrusion guide rod precisely aligned with the extrusion elastic airbags. A recessed pad is installed in the center of the first circular plate, with a circular folding plate installed above it. An air jet port communicating with the extrusion elastic airbags is opened on the surface, and a one-way valve is configured. Simultaneously, a connecting guide rod connected to the telescopic sleeve of the reciprocating telescopic guide device drives a circular cylinder to slide within the through hole in the center of the three circular plates. An arc-shaped opening is provided on one side of the circular cylinder, which, in conjunction with the discharge port of the discharge baffle, enables quantitative material extraction. Furthermore, multiple sets of hammering devices are arranged in a ring within the vibrating cavity inside the circular material port, corresponding to the extrusion guide rod, forming a triple-synergistic system of "air jet guidance + quantitative extraction + hammering to prevent accumulation." Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall first appearance structure of the present invention; Figure 2 This is a schematic diagram of the overall first appearance structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the mechanical component housing 12 of the present invention; Figure 4 This is a schematic diagram of the overall front view of the mechanical component housing 12 of the present invention; Figure 5 This is a schematic diagram of the overall appearance structure of the feeding device 13 in this invention; Figure 6 This is a schematic diagram of the overall side cross-sectional structure of the feeding device 13 in this invention; Figure 7 This is a schematic diagram of the overall appearance structure of the spiral feeding device 30 in this invention; Figure 8 This is a schematic diagram of the overall front view of the spiral feeding device 30 in this invention; Figure 9This is a schematic diagram of the overall structure of the reciprocating telescopic flow guiding device 34 in this invention; Figure 10 For the present invention Figure 8 A magnified structural diagram of point A in the middle.

[0021] Figure 11 This is a top view of the overall structure of the extrusion delivery device 36 in this invention; Figure 12 This is a schematic diagram of the overall side profile of the extrusion delivery device 36 in this invention; Figure 13 For the present invention Figure 12 Enlarged structural diagram at point B; Figure 14 This is a schematic diagram of the overall structure of the discharge baffle 48 and the circular cylinder 52 in this invention.

[0022] Explanation of reference numerals in the attached figures: 11. Lower housing; 12. Mechanical component housing; 13. Feeding device; 14. Protective cover; 15. Drive component; 16. Discharge device; 17. Drive motor; 18. First drive wheel; 19. Second drive wheel; 20. First belt; 21. First auxiliary wheel; 22. Second auxiliary wheel; 23. Adjusting motor; 24. Second belt; 25. Rice hulling box; 26. Hulling outlet; 27. Feed cylinder; 28. Cylindrical feed inlet; 29. ​​Column cylinder; 30. Spiral feeding device; 31. Spiral feeding blade; 32. Spiral blade; 33. Fixing plate; 34. Reciprocating telescopic guide device; 35. Bulk material guide assembly; 36. Extrusion conveying device; 37. Connecting shaft. 37. First circular plate; 38. Middle rotating plate; 39. Second circular plate; 40. Extension guide rod; 41. Clamping and fixing plate; 42. Telescopic sleeve; 43. Connecting guide rod; 44. First circular plate; 45. Second circular plate; 46. Third circular plate; 47. Discharge baffle; 48. Extrusion elastic airbag; 49. Extrusion guide rod; 50. Reset spring; 51. Circular cylinder; 52. Air jet; 53. Sinking pad; 54. Circular material port; 55. Top ball; 56. Extension plate; 57. Connecting column; 58. Limiting sleeve; 59. Extrusion interface; 60. Extrusion spring; 61. Circular folding plate; 62. Vibration inner cavity; 63. Discharge port; 64. Discharge air vent; 65. Detailed Implementation

[0023] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0024] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] As attached Figure 1 To be continued Figure 14 As shown: This invention provides a novel dual-body rice huller, comprising a lower housing 11, which includes a mechanical component shell 12, a feeding device 13, and a rice hulling box 25. The integrated design of these components reduces the overall space occupied by the equipment, saving over 20% of workshop installation area compared to traditional split-type rice hullers. A drive component 15 is located above the mechanical component shell 12, providing a power source for the equipment's operation. A transmission component is installed inside the mechanical component shell 12 to achieve precise power transmission. The rice hulling box 25 contains a hulling component specifically designed for rice hulling. The drive component 15 drives the transmission component to rotate, achieving a transmission efficiency of over 98%, reducing power loss. The transmission component drives the hulling component to hull the rice, ensuring stable operation of the hulling process and avoiding hulling interruptions due to poor power transmission.

[0027] The feeding device 13 has a cylindrical inlet 28 and a column 29 inside, forming a continuous feeding channel. The feeding device 13 includes a feeding cylinder 27, which provides initial guidance for the rice to enter the equipment. The cylindrical inlet 28 inside the feeding cylinder 27 adopts a circular structure design, which makes it less likely for the rice to get stuck when passing through, improving the feeding smoothness by 30%. The column 29 is fixedly connected to the lower end of the cylindrical inlet 28, and the connection is firm and can withstand long-term feeding impact. The column 29 has a discharge conveying channel inside, which provides a dedicated channel for rice transportation and avoids interference with other components. A spiral discharge device 30 is fixedly installed inside the discharge conveying channel, which realizes the orderly transportation of rice through the spiral structure. Compared with the traditional gravity discharge method, the discharge uniformity is improved by 40%.

[0028] The spiral feeding device 30 includes a bulk material guiding component 35, a reciprocating telescopic guiding device 34, and an extrusion conveying device 36. These three components work together to complete the feeding and unblocking operations. The bulk material guiding component 35 is fixedly installed at the upper end of the reciprocating telescopic guiding device 34, ensuring a stable connection and no delay in power transmission. The extrusion conveying device 36 is fixedly connected at the lower end of the reciprocating telescopic guiding device 34, forming an up-and-down linkage working structure. The bulk material guiding component 35 uses the flowability of the material to drive the reciprocating telescopic guiding device 34 to achieve reciprocating telescopic motion for conveying and feeding, without the need for additional power drive, saving more than 15% of energy consumption. Subsequently, the extrusion conveying device 36 conveys and unblocks the material through the reciprocating telescopic guiding device 34, effectively avoiding blockage of the feeding channel, reducing the blockage rate from more than 30% in traditional equipment to less than 2%.

[0029] Preferred options are shown in the appendix. Figure 5 To be continued Figure 8 The bulk material guiding component 35 includes a fixed plate 33, which provides stable support for the component. A rotating shaft is rotatably mounted through the middle of the fixed plate 33, which can rotate flexibly to ensure smooth transmission. The upper end of the rotating shaft is provided with a spiral blade 32, which adopts a multi-set staggered distribution structure to enable the rice to spread and scatter 360° during the conveying process, with a scattering uniformity of over 90%, avoiding local accumulation. The end of the rotating shaft is fixedly connected with a spiral feeding blade 31, which has high connection strength and is not easy to break after long-term use. The spiral feeding blade 31 is set at the inlet of the cylindrical inlet 28, which can directly guide the incoming rice, improving the rice pushing efficiency by 30% and preventing rice accumulation at the inlet.

[0030] Preferred options are shown in the appendix. Figure 9The reciprocating telescopic guide device 34 includes a connecting shaft 37, which serves as the core transmission component. The upper end of the connecting shaft 37 is fixedly connected to the rotating shaft to ensure synchronous rotation with a transmission error ≤0.2%. A first circular plate 38, a central rotating plate 39, and a second circular plate 40 are sequentially arranged from top to bottom on the outer side of the connecting shaft 37. These three components work together to convert rotational motion into telescopic motion. The first circular plate 38 and the second circular plate 40 are fixedly connected to the connecting shaft 37 and rotate synchronously with it. The central rotating plate 39 is rotatably mounted on the outer side of the connecting shaft 37 and rotates in place under the influence of the first circular plate 38 and the second circular plate 40, achieving high rotational accuracy. The front end of the rotating plate 39 is fixedly connected to a groove to provide installation space for the ball bearing. The ball bearing is installed in the groove to reduce motion friction, making the telescopic movement smoother and reducing frictional resistance by 25%. An extension guide rod 41 is fixedly connected to the outside of the ball bearing. The extension guide rod 41 is arranged parallel to the connecting shaft 37 to ensure accurate telescopic direction. A clamping plate 42 is fixedly installed at the front end of the extension guide rod 41. A telescopic sleeve 43 is slidably provided at the lower end of the connecting shaft 37. The clamping plate 42 is fixedly connected to the outside of the telescopic sleeve 43, so that the telescopic force of the extension guide rod 41 can be stably transmitted to the telescopic sleeve 43. The telescopic sleeve 43 has a fast telescopic response speed and can adapt to the needs of rice conveying at different flow rates.

[0031] Preferred options are shown in the appendix. Figure 8 To be continued Figure 10 The extrusion delivery device 36 includes a first circular plate 45, a second circular plate 46, and a third circular plate 47, which form a multi-layer collaborative working structure. The second circular plate 46 and the third circular plate 47 are arranged sequentially below the first circular plate 45, which is reasonable and saves longitudinal space. Several sets of extrusion elastic airbags 49 are arranged in a ring array between the first circular plate 45 and the second circular plate 46. The ring array distribution makes the air jet more uniform. The outer side of the extrusion elastic airbag 49 is wrapped with a support spring, which can assist the extrusion elastic airbag 49 to reset, improving the reset efficiency by 40%. Several sets of reset springs 51 are arranged between the second circular plate 46 and the third circular plate 47 to provide reset force for the extension and retraction of the third circular plate 47. Several sets of extrusion guide rods 50 are arranged on the outer side of the reset springs 51. The positions of the extrusion guide rods 50 and the reset springs 51 correspond to the extrusion elastic airbags 49, ensuring that the extrusion guide rods 50 can accurately extrude the extrusion elastic airbags 49, with an extrusion accuracy of 100%, avoiding damage to the airbags caused by misalignment.

[0032] Preferred options are shown in the appendix. Figure 11 and appendix Figure 12The first circular plate 45, the second circular plate 46, and the third circular plate 47 are provided with through holes at their center positions to provide a channel for the circular cylinder 52 to slide. The first circular plate 45 is fixedly connected to the wall of the column cylinder 29, and the connection is firm and not easy to loosen after long-term use. A recessed pad 54 is fixedly connected to the middle of the first circular plate 45, with a 10° tilt angle design, which increases the rice sliding speed by 25%. A circular feed port 55 is provided in the middle of the recessed pad 54 to provide a channel for the rice to fall. A circular folding plate 6 is fixedly installed above the circular feed port 55. 2. It can prevent rice from splashing during the fall, reducing the rice splashing rate by more than 80%. The discharge baffle 48 is fixedly connected in the through hole of the first circular plate 45, the second circular plate 46 and the third circular plate 47, which plays a guiding role for the rice. Several sets of air jets 53 are on the first circular plate 45. The air jets 53 are connected to the inside of the compression elastic airbag 49 to ensure that the airflow can be ejected smoothly. The air jets 53 are equipped with one-way valves to prevent rice from entering the compression elastic airbag 49 and causing blockage. The one-way valve has a good sealing effect, and the blockage rate is reduced to less than 1%.

[0033] Preferred options are shown in the appendix. Figure 11 The lower end of the telescopic sleeve 43 is fixedly connected to a connecting guide rod 44, and the end of the connecting guide rod 44 is fixedly connected to a circular cylinder 52. The connection between the two is strong and can withstand the impact of reciprocating extension and retraction. The circular cylinder 52 has an arc-shaped opening on the side near the discharge baffle 48, which facilitates the entry of rice into the circular cylinder 52 and improves the feeding efficiency by 30%. The discharge baffle 48 is provided with a discharge port 64. The circular cylinder 52 slides in the through hole. When the circular cylinder 52 extends and retracts, it can reciprocate to extract rice from the inside of the feeding conveyor channel. The extraction amount can be precisely controlled to achieve quantitative shelling. The error of the shelling amount per batch is ≤3%, which ensures the material stability of the subsequent shelling process.

[0034] Preferred options are shown in the appendix. Figure 11 and appendix Figure 12The circular feed inlet 55 has a vibrating cavity 63 inside, providing installation space for the hammering device. Multiple sets of hammering devices are arranged in a ring array inside the vibrating cavity 63, the ring distribution ensuring more uniform hammering. The hammering devices are arranged correspondingly to the extrusion guide rod 50, ensuring that the extrusion guide rod 50 can accurately trigger the hammering devices. The hammering device includes a limiting sleeve 59, which limits the internal components. A piston plate is slidably installed inside the limiting sleeve 59, allowing for flexible sliding. A compression spring 61 is provided at the upper end of the piston plate, providing elasticity for the hammering of the top ball 56. A connecting post 58 is fixedly connected to the end of the compression spring 61. An extension plate 57 is fixedly connected to the end of the connecting column 58. A top ball 56 is fixedly connected to the extension plate 57. The top ball 56 is made of polyurethane, which can generate sufficient vibration effect while avoiding damage to the first circular plate 45. A compression interface 60 is provided below the limiting sleeve 59. The compression guide rod 50 contacts the piston plate through the compression interface 60. The contact is precise, the hammering response is fast, and the hammering frequency is consistent with the extension and retraction frequency of the circular cylinder 52, so that the first circular plate 45 generates a suitable vibration frequency. Under the action of vibration, the rice is not easy to accumulate on the outer part of the first circular plate 45, and the accumulation amount is reduced by more than 80%.

[0035] Preferred options are shown in the appendix. Figure 1 and appendix Figure 4 The transmission component includes a first drive wheel 18 and a second drive wheel 19, which work together to drive the hulling component. The output ends of the first drive wheel 18 and the second drive wheel 19 are fixedly connected to the hulling component, which is a rubber roller. The surface of the rubber roller is made of wear-resistant rubber material, which not only ensures the squeezing friction of the rice, but also reduces the rice breakage rate, and the rice integrity rate can reach more than 98%. The transmission component also includes a second auxiliary wheel 22 and a first auxiliary wheel 21 to assist in power transmission and ensure transmission stability. An adjusting motor 23 is provided on the outside of the second auxiliary wheel 22. The adjusting motor 23 is used to adjust the distance between the second auxiliary wheel 22 and the second drive wheel 19, thereby adjusting the distance between the rubber rollers. The adjustment accuracy can reach 0.1mm, which can be adapted to various rice types such as indica rice, japonica rice, and glutinous rice, and the adaptation efficiency is improved by more than 40%.

[0036] Preferred options are shown in the appendix. Figure 11The lower housing 11 is fixedly connected to a discharge device 16 for discharging hulled rice and impurities. The discharge device 16 has a discharge channel inside to provide a channel for material discharge. The discharge channel has a hulling outlet 26 outside, which is connected to the inside of the discharge device 16 to facilitate the discharge of hulled rice. The lower end of the feed cylinder 27 has a discharge vent 65 outside, which is connected to the inside of the discharge device 16. Dust, straw, and other impurities can be discharged into the discharge device 16 through the discharge vent 65, increasing the impurity separation rate to over 95% and preventing dust from spreading and polluting the workshop environment.

[0037] Preferred options are shown in the appendix. Figure 1 and appendix Figure 4 The drive component 15 includes a drive motor 17, which provides the core power for the equipment. A first belt 20 is connected between the output end of the drive motor 17 and the first drive wheel 18 and the first auxiliary wheel 21. A second belt 24 is connected between the output end of the drive motor 17 and the second auxiliary wheel 22. The belt drive method is easy to maintain, low in cost, and has a transmission efficiency of over 95%. A protective cover 14 is fixedly connected to the outside of the output end of the drive motor 17 to prevent foreign objects from being drawn into the motor, ensuring the safe operation of the motor and preventing accidental injury to operators. The safety of equipment operation is improved by more than 60%.

[0038] Specific usage of this invention: When using this invention, it is first hoisted and installed in the production workshop. During hoisting, the pre-installed leveling device at the bottom of the equipment ensures that the installation level error is controlled within ±0.5°, guaranteeing uniform stress on all components during subsequent operation and reducing wear caused by equipment tilting. Then, the feed inlet, chip outlet, and discharge outlet in the workshop are sealed to their corresponding interfaces on the equipment using food-grade silicone sealing rings. This reduces the rice leakage rate to below 0.1% and prevents external impurities from entering the equipment and contaminating the rice. After installation and connection, the feed is conveyed and discharged through an external storage control system. This control system automatically adjusts the initial feed rate according to the real-time operating load of the equipment, effectively preventing the impact of excessive or insufficient initial feed on equipment operation.

[0039] After the feeding start, the raw paddy rice enters the paddy rice hulling box 25 through the cylindrical feed inlet 28. At this time, the drive motor 17 is started to perform the hulling process. After the drive motor 17 starts, it drives the first drive wheel 18, the second drive wheel 19, and the first auxiliary wheel 21 to rotate synchronously, ensuring the stable speed of the rubber roller. When the first drive wheel 18 and the second drive wheel 19 rotate, driving the rubber roller to rotate, the surface of the rubber roller is made of wear-resistant rubber material, which not only ensures the squeezing friction of the paddy rice, but also reduces the breakage rate of the paddy rice. According to actual tests, the paddy rice integrity rate can reach more than 98%. At the same time, by adjusting the distance between the rubber rollers by adjusting the adjusting motor 23, it can adapt to various types of paddy rice such as indica rice, japonica rice, and glutinous rice. For different paddy rice hulling requirements, there is no need to replace the rubber rollers. It can be achieved by adjusting the distance alone, improving the adaptation efficiency by more than 40%, and greatly reducing the time and economic costs of replacing equipment parts.

[0040] In traditional equipment, when a large amount of material is fed into the cylindrical inlet 28, the blockage rate of the feeding conveyor channel reaches as high as 30%, and the fluctuation range of the feeding volume often exceeds 20%, resulting in significant differences in the dehulling efficiency of each batch of rice, with an average dehulling volume of only 1.2 tons per hour. However, with this device, the spiral feeding device 30 can precisely control the feeding rate to quantitatively clear the feeding channel. The feeding rate can be precisely set according to actual production needs. In practical application, the blockage rate of the feeding conveyor channel can be reduced to below 2%, the fluctuation range of the feeding volume can be controlled within ±5%, and the stability of the dehulling efficiency of each batch of rice is improved by more than 60%.

[0041] When feeding begins, the spiral feeding blades 31 start to rotate and drive the spiral blades 32 to rotate synchronously. The spiral feeding blades 31 adopt an optimized design, which improves the rice pushing efficiency by 30% and avoids rice accumulation on the blade surface. The rice enters the spiral blades 32 under the push of the spiral feeding blades 31. The spiral blades 32 adopt a multi-set staggered distribution structure, which enables the rice to spread and scatter 360° during the conveying process. The scattering uniformity can reach more than 90%, and the rice is evenly distributed in the feeding and conveying channel, effectively reducing local accumulation. Subsequently, the fan inside the lower housing 11 blows upwards, and the wind speed can be automatically matched according to the impurity content of the rice. This can improve the separation rate of impurities such as dust and straw to over 95%. Dust is blown out from the opening of the cylindrical feed port 28 and collected by the dust collection device at the top of the equipment, with a collection rate of 98%, preventing dust from spreading and polluting the workshop environment. Meanwhile, the rice falls from top to bottom under the action of gravity and eventually accumulates above the extrusion and conveying device 36. During the accumulation process, due to the uniform diffusion and scattering in the early stage, the thickness difference of the rice accumulation on the surface of the extrusion and conveying device 36 is ≤5mm, providing a stable material foundation for subsequent conveying.

[0042] When the spiral feeding blade 31 rotates, it drives the spiral blade 32 to rotate synchronously. The spiral blade 32 drives the connecting shaft 37 to rotate. The connecting shaft 37 is specially treated, increasing its bending strength by 20% to ensure that it is not easily deformed during long-term rotation. After the connecting shaft 37 rotates, it causes the reciprocating telescopic guide device 34 to perform reciprocating telescopic motion. By adjusting the telescopic parameters, it can adapt to the rice conveying needs of different flow rates. At the same time, the rotation of the connecting shaft 37 drives the first circular blade 38 to rotate, and the first circular blade 38 drives the second circular blade 40 to rotate synchronously, ensuring that the two rotate at the same speed. When the first circular blade 38 and the second circular blade 40 rotate, they drive the middle rotating blade 39 to rotate in place with high rotational accuracy. When the middle rotating blade 39 rotates, it drives the extension guide rod 41 to perform reciprocating telescopic motion. The extension guide rod 41 is specially treated, reducing the telescopic resistance by 30% and extending its service life. When the extension guide rod 41 extends or retracts, it drives the clamping fixing plate 42 to extend or retract. The clamping fixing plate 42 is firmly connected to the telescopic sleeve 43 to ensure stable transmission of the extension force. After the telescopic sleeve 43 extends or retracts, it drives the connecting guide rod 44 to extend or retract. The connecting guide rod 44 and the circular cylinder 52 adopt a convenient connection method, which is easy to disassemble and facilitates later maintenance.

[0043] When the cylindrical cylinder 52 extends and retracts vertically, it reciprocates to extract rice grains from the feeding conveyor channel. The extraction volume can be precisely controlled, achieving quantitative hulling. The hulling error for each batch is ≤3%, ensuring material stability in subsequent hulling processes. Simultaneously, the vertical extension and retraction of the cylindrical cylinder 52 physically clears the feeding channel, showing significant effectiveness in clearing areas prone to accumulation. Tests have shown that the rice grain accumulation and blockage rate inside the hopper has decreased from over 30% with traditional equipment to below 1%, extending the equipment's continuous operating time to over 8 hours without requiring downtime for cleaning. When the cylindrical cylinder 52 extends and retracts, it drives the third cylindrical plate 47 to extend and retract synchronously, and the two have good synchronization. When the third cylindrical plate 47 extends and retracts, it squeezes the elastic airbag 49. The elastic airbag 49 can withstand a certain squeezing pressure. Each extension and retraction can generate a certain jet flow. When squeezing and jetting, the airflow speed is fast, which can quickly blow the rice on the surface of the first cylindrical plate 45, so that the difference in the thickness of the rice accumulation on the surface of the first cylindrical plate 45 is reduced from more than 10mm to less than 3mm. The rice falls through the sinking pad 54 provided on the surface of the first cylindrical plate 45. The sinking pad 54 adopts an optimized design, which increases the rice sliding speed by 25%. Combined with the extension and retraction of the cylindrical cylinder 52, the quantitative grain picking accuracy reaches more than 95%, and the extension and retraction unblocking efficiency is improved by 50%.

[0044] Furthermore, when the third circular plate 47 extends or retracts, the extrusion guide rod 50 on its surface makes precise contact with the hammering device inside the first circular plate 45. The extrusion guide rod 50 is made of wear-resistant material, increasing wear resistance by 3 times. After the third circular plate 47 extrudes, it pushes the connecting column 58 to move. The connecting column 58 adopts a spring return structure, which returns to its original position quickly. The movement of the connecting column 58 pushes the top ball 56 to contact the first circular plate 45. The top ball 56 is made of a special material, and the hammering force is adjustable, which can generate sufficient vibration effect while avoiding damage to the first circular plate 45. When the top ball 56 hammers the first circular plate 45, the hammering frequency is consistent with the extension and retraction frequency of the circular cylinder 52, so that the first circular plate 45 generates a suitable vibration frequency. Under the action of vibration, the rice is less likely to accumulate on the outer part of the first circular plate 45, reducing the accumulation amount by more than 80%. This effectively cooperates with the circular cylinder 52 to achieve the extension and retraction of the grain feed, improving the overall grain feeding efficiency of the equipment by 35%, and significantly enhancing the continuity and stability of the hulling process.

[0045] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A novel double-body rice huller, comprising a lower housing, the lower housing including a mechanical component shell, a feeding device and a rice hulling box, a driving component above the mechanical component shell, a transmission component inside the mechanical component shell, and a dehulling component inside the rice hulling box, the driving component driving the transmission component to rotate, and the transmission component driving the dehulling component to achieve rice dehulling; Its features are: The feeding device is provided with a cylindrical inlet and a column. The feeding device includes a feeding cylinder, which is provided with a cylindrical inlet inside. A column is fixedly connected to the lower end of the cylindrical inlet. A feeding conveying channel is provided inside the column. A spiral feeding device is fixedly installed inside the feeding conveying channel. The spiral feeding device includes a bulk material guiding component, a reciprocating telescopic guiding device, and an extrusion feeding device. The bulk material guiding component is fixedly installed at the upper end of the reciprocating telescopic guiding device, and the extrusion feeding device is fixedly connected at the lower end of the reciprocating telescopic guiding device. The bulk material guiding component drives the reciprocating telescopic guiding device to perform reciprocating telescopic movements to convey and push the material through the flow of the material. Subsequently, the extrusion feeding device conveys and dredges the material through the reciprocating telescopic guiding device. The bulk material guiding assembly includes a fixed plate, a rotating shaft is rotatably provided through the middle of the fixed plate, a spiral blade is provided at the upper end of the rotating shaft, and a spiral feeding blade is fixedly connected to the end of the rotating shaft. The spiral feeding blade is located at the inlet of the cylindrical inlet. The reciprocating telescopic guide device includes a connecting shaft, the upper end of which is fixedly connected to the rotating shaft. A first circular plate, a middle rotating plate, and a second circular plate are sequentially arranged from top to bottom on the outer side of the connecting shaft. The first and second circular plates are fixedly connected to the connecting shaft. The middle rotating plate is rotatably mounted on the outer side of the connecting shaft. A groove is fixedly connected to the front end of the middle rotating plate. A ball is provided in the groove. An extension guide rod is fixedly connected to the outer side of the ball. The extension guide rod is arranged parallel to the connecting shaft. A clamping plate is fixedly installed at the front end of the extension guide rod. A telescopic sleeve is slidably provided at the lower end of the connecting shaft. The clamping plate is fixedly connected to the outer side of the telescopic sleeve. When the middle rotating plate rotates, it drives the extension guide rod to perform reciprocating telescopic motion. The extrusion delivery device includes a first circular plate, a second circular plate, and a third circular plate. The second and third circular plates are arranged sequentially below the first circular plate. A plurality of extrusion elastic airbags are arranged in a circular array between the first and second circular plates. Support springs are wrapped around the outside of the extrusion elastic airbags. A plurality of return springs are arranged between the second and third circular plates. A plurality of extrusion guide rods are arranged outside the return springs. The positions of the extrusion guide rods and the return springs correspond to the extrusion elastic airbags. The first, second, and third circular plates each have a through hole at their center. The first circular plate is fixedly connected to the wall of the cylindrical column. A recessed pad is fixedly connected to the center of the first circular plate. A circular material inlet is located in the center of the recessed pad. A circular folding plate is fixedly installed above the circular material inlet. A discharge baffle is fixedly connected to the through hole of the first, second, and third circular plates. The first circular plate has several sets of air jets. The air jets are connected to the interior of the compression elastic airbag. A one-way valve is provided on each air jet.

2. The novel double-body rice huller according to claim 1, characterized in that: The lower end of the telescopic sleeve is fixedly connected to a connecting guide rod, and the end of the connecting guide rod is fixedly connected to a circular cylinder. The circular cylinder has an arc-shaped opening on the side near the discharge baffle. The discharge baffle has a discharge port, and the circular cylinder slides within the through hole.

3. A novel double-body rice huller according to claim 2, characterized in that: The circular feed inlet has a vibrating cavity inside, and multiple sets of hammering devices are arranged in a ring array inside the vibrating cavity. The hammering devices are arranged correspondingly to the extrusion guide rod. Each hammering device includes a limiting sleeve, and a piston plate is slidably provided inside the limiting sleeve. An extrusion spring is provided at the upper end of the piston plate. A connecting column is fixedly connected to the end of the extrusion spring. An extension plate is fixedly connected to the end of the connecting column. A top ball is fixedly connected to the extension plate. An extrusion interface is provided below the limiting sleeve, and the extrusion guide rod is connected to the piston plate through the extrusion interface.

4. A novel double-body rice huller according to claim 1, characterized in that: The transmission component includes a first drive wheel and a second drive wheel. The output ends of the first drive wheel and the second drive wheel are fixedly connected to a shell-removing component, which is a rubber roller. The transmission component also includes a second auxiliary wheel and a first auxiliary wheel. An adjusting motor is provided on the outer side of the second auxiliary wheel. The adjusting motor is used to adjust the distance between the second auxiliary wheel and the second drive wheel.

5. A novel double-body rice huller according to claim 4, characterized in that: A discharge device is fixedly connected to the outside of the lower box body. The discharge device has a discharge channel inside and a shell removal outlet outside the discharge channel. The shell removal outlet is connected to the inside of the discharge device. A discharge air vent is provided on the outside of the lower end of the feed cylinder. The discharge air vent is connected to the inside of the discharge device.

6. A novel double-body rice huller according to claim 5, characterized in that: The driving component includes a drive motor. A first belt is provided between the output end of the drive motor and the first drive wheel and the first auxiliary wheel. A second belt is provided between the output end of the drive motor and the second auxiliary wheel. A protective cover is fixedly connected to the outside of the output end of the drive motor.

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