Portable amomum tsao-ko threshing device

Abstract

The invention discloses a portable amomum tsao-ko threshing device which comprises a base, a first supporting plate and a second supporting plate which are parallel to each other are arranged on the base, a first through hole is formed in the first supporting plate, a second through hole is formed in the second supporting plate, the axis of the first through hole and the axis of the second through hole are collinear, and a plurality of shear knives are arranged in the first through hole. A plurality of shear knives surround to form a threshing hole to prevent fruits on the amomum tsao-ko from penetrating through the first through hole, a synchronous adjusting assembly is arranged on the surface of the side, close to the second supporting plate, of the first supporting plate and used for synchronously driving the shear knives to move in the radial direction, and a traction assembly is arranged on the surface of the side, away from the first supporting plate, of the second supporting plate. The traction assembly is used for driving the inflorescence shaft of the amomum tsao-ko to axially move to penetrate through the second through hole. The inflorescence shaft of the amomum tsao-ko is driven by the traction assembly to penetrate through the threshing hole, the fruit grains of the amomum tsao-ko fall off from the inflorescence shaft under the action of the shear knife applied by the shear knife in the axial direction of the inflorescence shaft, threshing of the amomum tsao-ko is achieved, and separation of the fruit grains and the inflorescence shaft is also achieved.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery technology, and in particular to a portable grass and fruit threshing device. Background Technology

[0002] When harvesting cardamom after it matures, the fruit and inflorescence axis need to be separated, and then the fruit is collected. The current separation method is generally done manually, which is labor-intensive, inefficient, and not conducive to improving the production benefits of fruit farmers.

[0003] Chinese patent CN118285239A discloses a cardamom threshing and separating device, which uses a motor-driven high-speed rotating knocking component to impact and squeeze the cardamom, knocking the pods off the inflorescence axis to achieve threshing.

[0004] However, the high-speed rotating knocking component in the above solution will severely damage the cardamom skin, affecting the final product quality. The cardamom tends to rotate synchronously with the knocking blades, which can only achieve the threshing of most of the fruit. Subsequent manual secondary processing is required, which reduces the threshing effect. Summary of the Invention

[0005] In view of the above-mentioned prior art, this application provides a cardamom threshing and separating device, in which the inflorescence axis of mature cardamom is passed through the threshing hole and an axial tension is applied to the inflorescence axis. The inflorescence axis passes through the threshing hole, and the fruit grains are subjected to shear force and fall off the inflorescence axis during this process, thereby realizing the threshing of cardamom.

[0006] To achieve the above objectives, the technical solution of this invention is implemented as follows: A portable cardamom threshing device includes a base with a first support plate and a second support plate parallel to each other. The first support plate has a first through hole, and the second support plate has a second through hole. The axes of the first and second through holes are collinear. A plurality of shearing blades are provided in the first through hole, and the plurality of shearing blades surround to form a threshing hole to prevent cardamom grains from passing through the first through hole. A synchronous adjustment component is provided on the surface of the first support plate near the second support plate, which is used to synchronously drive the plurality of shearing blades to move radially. A traction component is provided on the surface of the second support plate away from the first support plate, which is used to drive the inflorescence axis of the cardamom to move axially to pass through the second through hole.

[0007] Furthermore, the number of shearing blades is 6-8, and the cross-section of the shearing blades is arc-shaped.

[0008] Furthermore, the edges of adjacent shear blades that are close to each other are provided with staggered teeth.

[0009] Furthermore, the synchronous adjustment component includes several fixed support seats, which are installed on the side surface of the first support plate near the second support plate. The fixed support seats are arranged in a ring array around the first through hole. A slide rod is slidably connected to the fixed support seat. One end of the slide rod is fixedly connected to the shearing blade, and the end of the slide rod away from the shearing blade is connected to a slider. A rotating plate is rotatably connected to the side surface of the second support plate near the first support plate. The rotating plate has a third through hole, and the axes of the third through hole and the second through hole are collinear. The rotating plate also has an involute groove, and the slider is slidably connected within the involute groove.

[0010] Furthermore, a second connecting rod is connected to the edge of the rotating plate, and a spring is connected to the end of the second connecting rod. The end of the spring away from the second connecting rod is fixedly connected to the second support plate. The spring is used to drive the rotating plate to rotate so as to adaptively reduce the diameter of the threshing hole.

[0011] Furthermore, the edge of the rotating plate is also connected to a first connecting rod, which is used to rotate the rotating plate in the opposite direction to increase the diameter of the threshing hole so that the inflorescence axis of the cardamom can pass through the threshing hole.

[0012] Furthermore, the traction assembly includes multiple rotating components arranged along the axis of the second through hole. Each rotating component includes a support base, which is mounted on the side surface of the second support plate away from the first support plate. Four rotating shafts are rotatably connected to the support base. The four rotating shafts are arranged in a square, and the plane containing the four rotating shafts is parallel to the second support plate. The ends of adjacent rotating shafts are connected by bevel gears to rotate synchronously in opposite directions. Traction rollers are sleeved on the rotating shafts. The four traction rollers rub against the outer wall of the inflorescence axis of the cardamom. A motor is mounted on the side surface of the second support plate away from the first support plate. The output end of the motor synchronously drives the rotating shafts of the multiple rotating components to rotate synchronously via a belt.

[0013] Furthermore, the outer wall of the traction roller is provided with strip-shaped protrusions, the length direction of which is along the axis of the traction roller, and the top of the strip-shaped protrusions is designed to be arc-shaped away from the traction roller.

[0014] Furthermore, a baffle is provided on the side of the first support plate away from the second support plate to shield the splashed cardamom granules, and an observation hole is provided on the baffle.

[0015] Furthermore, a first hook is installed on the surface of the first support plate away from the second support plate. The first hook is located below the first through hole and a fruit collection bag is hung on the first hook. A second hook is installed on the surface of the second support plate away from the first support plate. The second hook is located below the second through hole and a flower stalk collection bag is hung on the second hook.

[0016] The beneficial effects of this invention are as follows: the inflorescence axis of the cardamom passes through the threshing hole formed by the shearing blade, and the fruit grains on the cardamom are subjected to the radial shearing force applied by the shearing blade, allowing the fruit grains to fall off easily. When the fruit grains are attached to the inflorescence axis, the overall size of the cardamom is much larger than the diameter of the inflorescence axis. The threshing hole formed by the shearing blade abutting against the outer wall of the inflorescence axis ensures that all fruit grains are detached at once after the inflorescence axis passes through the threshing hole, without secondary processing. Furthermore, the separation of the inflorescence axis from the fruit grains is achieved by the inflorescence axis passing through the threshing hole, eliminating the need for subsequent sorting and improving efficiency.

[0017] The edges of adjacent shear blades are equipped with staggered teeth. When the shear blades form a larger diameter threshing hole, a complete threshing hole is formed. When the shear blades move radially to form a smaller diameter threshing hole, the overlapping parts of the adjacent shear blades are staggered and do not affect the radial movement of the shear blades. Therefore, no matter how the diameter of the threshing hole formed by the shear blades changes, there will be no gap between adjacent shear blades, and no fruit stalks will pass through the gap, resulting in incomplete threshing of the fruit.

[0018] By rotating the rotating plate, all the shearing blades are driven to move radially in sync, ensuring that the center height of the threshing holes remains constant. This also prevents the shearing blades from moving radially out of sync and forming irregular threshing holes, which would affect the passage of the inflorescence shaft. The constant center height of the threshing holes keeps the end position of the inflorescence shaft passing through the threshing holes fixed, allowing it to be smoothly fixed and axially pulled by the traction assembly.

[0019] The inflorescence axis is thicker at the bottom and thinner at the top, with a variable diameter. The rotating plate is connected to the second support plate by a spring, and the spring force drives the rotation. The shearing blade adaptively abuts against and fits against the outer wall of the inflorescence axis. The shearing blade always applies shearing force to the connection between the fruit and the inflorescence axis, avoiding direct squeezing of the fruit by the shearing blade and causing damage to the fruit.

[0020] The traction assembly includes multiple rotating components, each comprising two sets of traction rollers rotating in opposite directions. These rollers apply pressure to the outer wall of the inflorescence shaft in both vertical and horizontal directions. The outer wall of the inflorescence shaft experiences frictional forces along four axes, increasing the axial movement power of the inflorescence shaft. Simultaneously, the diameter of the inflorescence shaft gradually decreases. During the axial movement of the inflorescence shaft, the thicker bottom portion is clamped and driven by different rotating components. This ensures that the axial tension on the inflorescence shaft during the threshing process does not decrease and jam the device. Through the transmission of bevel gears and belts, the four traction rollers within one rotating component rotate synchronously in opposite directions. The synchronous rotation of the traction rollers within different rotating components ensures a balanced driving force on the inflorescence shaft by the entire traction assembly. This prevents shearing forces caused by different rotational speeds of the traction rollers, thus preventing the inflorescence shaft from being cut and clogging the traction assembly.

[0021] The surface of the traction roller is provided with strip-shaped ridge protrusions. The contact between the strip-shaped ridge protrusions and the outer wall of the inflorescence shaft is a line contact, which can not only improve the friction and ensure the stability of the axial force on the inflorescence shaft, but also prevent the inflorescence shaft from breaking and clogging the traction component. Furthermore, as the strip-shaped ridge protrusions are pressed into the outer wall of the inflorescence shaft and rotate with the traction roller, the inflorescence shaft is pushed by the strip-shaped ridge protrusions, which further ensures the stability of the axial force on the inflorescence shaft. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a portable cardamom threshing device according to the present invention; Figure 2 for Figure 1 Enlarged view of the central A region; Figure 3 This is a schematic diagram of the synchronous adjustment component of a portable cardamom threshing device according to the present invention; Figure 4 This is a schematic diagram of the threshing holes formed by the shearing blade of a portable cardamom threshing device according to the present invention; Figure 5 This is a schematic diagram of the traction component of a portable cardamom threshing device according to the present invention; Figure 6 for Figure 5 Enlarged view of the central B region; Figure 7 This is a bottom view of the traction assembly of a portable grass threshing device according to the present invention; Figure 8 for Figure 7 Enlarged view of the central C region; Figure 9 This is a schematic diagram of the alternating combination of shearing blades in a portable cardamom threshing device according to the present invention; Figure 10 This is a schematic diagram of the traction roller of a portable cardamom threshing device according to the present invention.

[0023] Reference numerals: 1. First support plate; 2. Fruit collection bag; 3. Second support plate; 4. Inflorescence axis collection bag; 5. First through hole; 6. Shearing blade; 61. Interlaced teeth; 7. Traction assembly; 71. Support base; 72. Traction roller; 73. Rotating shaft; 74. Bevel gear; 75. Strip-shaped ridge protrusion; 76. Motor; 77. Belt; 8. Synchronous adjustment assembly; 81. Fixed support base; 82. Slide rod; 83. Slider; 84. Rotating plate; 85. Involute groove; 9. Enclosure; 10. Observation hole; 11. First connecting rod; 12. Second connecting rod; 13. Spring; 14. Second through hole; 15. Third through hole; 16. Base; 17. First hook; 18. Second hook. Detailed Implementation

[0024] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0025] Combined with reference to the appendix Figures 1 to 10 This invention provides a portable cardamom threshing device, including a base 16, on which a first support plate 1 and a second support plate 3 are provided, which are parallel to each other. The first support plate 1 has a first through hole 5, and the second support plate 3 has a second through hole 14. The axes of the first through hole 5 and the second through hole 14 are collinear. A plurality of shearing blades 6 are provided in the first through hole 5. The plurality of shearing blades 6 surround to form a threshing hole to prevent cardamom grains on the cardamom from passing through the first through hole 5. A synchronous adjustment component 8 is provided on the side surface of the first support plate 1 near the second support plate 3. The synchronous adjustment component 8 is used to synchronously drive the plurality of shearing blades 6 to move radially. A traction component 7 is provided on the side surface of the second support plate 3 away from the first support plate 1. The traction component 7 is used to drive the inflorescence axis of the cardamom to move axially to pass through the second through hole 14. In use, the thicker end of the cardamom inflorescence axis, which is also the end without fruit, is passed through the threshing hole formed by the shearing blade 6 and through the second through hole 14. It is held by the traction component 7. The thicker end of the cardamom inflorescence axis is continuously subjected to axial traction force, and eventually the entire inflorescence axis passes through the threshing hole. Meanwhile, the shearing blade 6 applies shearing force to the connection between the fruit and the inflorescence axis, and the fruit falls off the inflorescence axis, thus threshing the cardamom. During this process, the synchronous adjustment component 8 drives multiple shearing blades 6 to move radially to form threshing holes of different sizes to accommodate inflorescence axes of different diameters. The base 16 is foldable, and the connection between the base 16 and the first support plate 1 and the second support plate 3 is designed to fold upwards and retract, reducing the volume of the entire threshing device and making it easy to transport.

[0026] Preferably, there are 6-8 shearing blades 6, and the cross-section of the shearing blades 6 is arc-shaped. When the number of shearing blades 6 exceeds 8, the excessive number increases the complexity of the device and the difficulty of maintenance. When the number of shearing blades 6 is less than 6, the angled area between adjacent shearing blades 6 cannot fit well against the outer wall of the inflorescence axis when the diameter of the threshing hole changes. This will cause the shearing blades 6 to be unable to apply shearing force effectively at the connection between the fruit and the inflorescence axis. The side of the shearing blade 6 that contacts the fruit is beveled into a narrow face, mainly to shear the fruit stalk between the fruit and the inflorescence axis, avoiding contact between the shearing blades 6 and the fruit skin, thus preventing frictional damage.

[0027] Preferably, the edges of adjacent shearing blades 6 that are close to each other are provided with staggered teeth 61. When the shearing blades 6 form a larger diameter threshing hole, a complete threshing hole is formed. When the shearing blades 6 move radially to form a smaller diameter threshing hole, the staggered teeth 61 on the edges of adjacent shearing blades 6 overlap and interlock, without affecting the radial movement of the shearing blades 6. This ensures the formation of a complete smaller diameter threshing hole. Regardless of the diameter of the threshing hole formed by the shearing blades 6, there will be no gaps between adjacent shearing blades 6, preventing fruit stalks from passing through gaps and causing incomplete threshing. Furthermore, when the staggered teeth of the shearing blades 6 interlock, they form a unified whole, resulting in a more stable threshing hole and preventing displacement of individual shearing blades 6.

[0028] Preferably, the synchronous adjustment component 8 includes several fixed support seats 81, which are installed on the side surface of the first support plate 1 near the second support plate 3. The fixed support seats 81 are arranged in a ring array around the first through hole 5. A slide rod 82 is slidably connected to the fixed support seat 81. One end of the slide rod 82 is fixedly connected to the shearing blade 6, and the end of the slide rod 82 away from the shearing blade 6 is connected to a slider 83. A rotating plate 84 is rotatably connected to the side surface of the second support plate 3 near the first support plate 1. A third through hole 15 is provided on the rotating plate 84. The axes of the third through hole 15 and the second through hole 14 are collinear. The rotating plate 84 also has an involute groove 85, in which the slider 83 is slidably connected. Rotating the rotating plate 84 causes the slider 83 to slide within the involute groove 85, which in turn causes the slide rod 82 to slide radially on the fixed support 81. The shearing blade 6 connected to the slide rod 82 moves radially. By rotating the rotating plate 84, all the shearing blades 6 can be adjusted radially to form threshing holes of different diameters. Different cardamom plants have different inflorescence axis diameters. By adjusting the diameter of the threshing holes, the shearing blades 6 apply shearing force to the connection point between the inflorescence axis and the fruit, avoiding direct squeezing of the fruit and causing damage to the fruit skin, thus affecting the quality of the fruit.

[0029] Preferably, the edge of the rotating plate 84 is connected to a second connecting rod 12, and the end of the second connecting rod 12 is connected to a spring 13. The end of the spring 13 away from the second connecting rod 12 is fixedly connected to the second support plate 3. The spring 13 is used to drive the rotating plate 84 to rotate so as to adaptively reduce the diameter of the threshing hole. After the thicker end of the cardamom inflorescence axis is passed through the threshing hole, the rotating plate 84 rotates automatically under the action of the spring 13, and the slider 83 slides in the involute groove 85. Then, the shearing blade 6 moves radially adaptively to abut against the outer wall of the inflorescence axis. Different cardamom inflorescence axes have different diameters. After the thicker end of the cardamom inflorescence axis is passed through the threshing hole, the diameter of the threshing hole changes adaptively. The diameter of the inflorescence axis of each cardamom is different. During the process of the inflorescence axis passing through the threshing hole, the diameter of the inflorescence axis also changes. Through the spring 13, the shearing blade 6 moves radially adaptively and always abuts against the outer wall of the inflorescence axis. The shearing blade 6 always applies shearing force to the connection point between the inflorescence axis and the fruit, avoiding damage to the fruit skin. Moreover, the shearing position is consistent, which also helps to ensure the consistent quality of the detached fruit.

[0030] Preferably, the edge of the rotating plate 84 is also connected to a first connecting rod 11. The first connecting rod 11 is used to rotate the rotating plate 84 in the opposite direction to increase the diameter of the threshing hole so that the inflorescence axis of the cardamom can pass through the threshing hole. When a second connecting rod 12 is connected to the edge of the rotating plate 84 and the second supporting plate 3 is connected by a spring 13, the diameter of the threshing hole formed by the shearing blade 6 always tends to decrease. Before inserting the inflorescence axis of a cardamom, the rotating plate 84 is rotated in the opposite direction by the first connecting rod 11, the diameter of the threshing hole becomes larger, and the inflorescence axis can be smoothly inserted into the threshing hole formed by the shearing blade 6. Then the first connecting rod 11 is released, and under the action of the spring 13, the shearing blade 6 moves radially, the diameter of the threshing hole formed by the shearing blade 6 becomes smaller, and the shearing blade 6 abuts against the outer wall of the inflorescence axis.

[0031] Preferably, the traction assembly 7 includes a plurality of rotating assemblies arranged along the axis of the second through hole 14. Each rotating assembly includes a support base 71, which is mounted on the side surface of the second support plate 3 away from the first support plate 1. Four rotating shafts 73 are rotatably connected to the support base 71. The four rotating shafts 73 are arranged in a square, and the plane on which the four rotating shafts 73 are located is parallel to the second support plate 3. The ends of adjacent rotating shafts 73 are connected by bevel gears 74 to rotate synchronously in opposite directions. Traction rollers 72 are sleeved on the rotating shafts 73. The four traction rollers 72 rub against the outer wall of the inflorescence axis of the cardamom. A motor 76 is mounted on the side surface of the second support plate 3 away from the first support plate 1. The output end of the motor 76 synchronously drives the rotating shafts 73 of the plurality of rotating assemblies to rotate synchronously via a belt 77. A rotating assembly includes four traction rollers 72, which form a clamping channel. As the inflorescence shaft passes through, its outer wall is clamped by the four traction rollers 72, which form a square structure. The inflorescence shaft experiences clamping forces in both vertical and horizontal directions within the clamping channel. The four traction rollers 72 are connected by bevel gears 74. Therefore, during rotation, the four traction rollers 72 apply a frictional force in the same direction to the outer wall of the inflorescence shaft, driving it to move away from the shearing blade 6. The traction assembly 7 includes multiple rotating components to ensure that during the fruit detachment process, the inflorescence shaft is always clamped and driven by the traction rollers 72 during axial movement. Since the diameter of the inflorescence shaft of a cardamom fruit decreases over time, if there were only one rotating assembly, the thicker portion of the inflorescence shaft could be clamped by the traction rollers 72, thus driving it through friction. Axial movement occurs when the thinner part of the inflorescence shaft cannot be held by the traction roller 72. This results in the remaining inflorescence shaft no longer experiencing axial friction after the cardamom threshing process, causing the pods to not receive sufficient shearing force from the shearing blade 6, leading to cardamom threshing failure. The traction assembly 7 includes multiple rotating components arranged along the axis of the second through hole 14, ensuring that the clamping channel formed by the traction roller 72 is a straight line and does not bend, thus preventing the inflorescence shaft from passing through. After the thicker part of the inflorescence shaft passes through one rotating component, it moves to the next rotating component and is clamped and driven by the next rotating component. In other words, during a cardamom threshing process, the thicker part of the cardamom inflorescence shaft can always be clamped by the traction roller 72, providing continuous axial friction driving force for the inflorescence shaft. Finally, the inflorescence shaft is clamped and driven by the traction roller 72 to disengage from the clamping channel and fall, facilitating the threshing operation of the next cardamom.

[0032] Specifically, the driving force for rotating the shaft 73 includes, but is not limited to, a motor. A crank can be installed on the second support plate 3 and connected to the shaft 73 through gear transmission. Rotating the crank drives the shaft 73 to rotate, thereby driving the rotation of the rotating component and causing the inflorescence shaft to move axially. Using a crank drive can reduce the weight of the threshing device, reduce the cost of the threshing device, and ensure that the threshing device can operate and thresh even without power, making it more adaptable.

[0033] Preferably, the outer wall of the traction roller 72 is provided with strip-shaped ridge protrusions 75. The length direction of the strip-shaped ridge protrusions 75 is arranged along the axis of the traction roller 72, and the top of the strip-shaped ridge protrusions 75 away from the traction roller 72 is designed to be arc-shaped. The surface of the traction roller 72 is provided with strip-shaped ridge protrusions 75, and the contact between the strip-shaped ridge protrusions 75 and the outer wall of the inflorescence shaft is line contact. This can improve the friction and ensure the stability of the axial force on the inflorescence shaft, and will not cause the inflorescence shaft to break and block the traction assembly 7. In addition, when the strip-shaped ridge protrusions 75 are pressed into the outer wall of the inflorescence shaft and rotate with the traction roller 72, the inclined surface of the strip-shaped ridge protrusions 75 provides a greater axial pushing force to the inflorescence shaft. The inflorescence shaft is pushed by the strip-shaped ridge protrusions 75, which further ensures the stability of the axial force on the inflorescence shaft. The top of the strip-shaped ridge protrusions 75 away from the traction roller 72 is designed to be arc-shaped, which improves the axial force of the inflorescence shaft and further reduces the risk of the strip-shaped ridge protrusions 75 cutting the inflorescence shaft.

[0034] Preferably, a surrounding plate 9 is provided on the side of the first support plate 1 away from the second support plate 3 to shield the splashed cardamom grains. An observation hole 10 is provided on the surrounding plate 9. The inflorescence axis of the cardamom passes through the threshing hole, but the cardamom grains cannot pass through the threshing hole. The surrounding plate 9 on the side of the first support plate 1 away from the second support plate 3 prevents the grains from splashing and bouncing during the shearing process by the shearing blade 6, and gathers the grains in a concentrated direction. The observation hole 10 on the surrounding plate 9 allows the operator to easily align the inflorescence axis with the threshing hole through the observation hole 10.

[0035] A first hook 17 is installed on the surface of the first support plate 1 away from the second support plate 3. The first hook 17 is located below the first through hole 5. A fruit collection bag 2 is hung on the first hook 17. A second hook 18 is installed on the surface of the second support plate 3 away from the first support plate 1. The second hook 18 is located below the second through hole 14. A flower stalk collection bag 4 is hung on the second hook 18. The fallen fruit kernels are collected by the kernel collection bag 2. The inflorescence shaft, after passing through the threshing hole, falls off after being driven by the continuous friction of the traction roller 72 and is collected by the inflorescence shaft collection bag 4 below, thus achieving separate collection of the fruit kernels and the inflorescence shaft. The kernel collection bag 2 is hung on the first hook 17, and the inflorescence shaft collection bag 4 is hung on the second hook 18. The hanging is only done during the threshing operation to reduce the weight and volume of the threshing device. The threshed fruit kernels are directly immersed in the kernel collection bag 2, while the inflorescence shaft is determined according to the actual situation. When threshing cardamom in the field, it is not necessary to collect the inflorescence shaft, so there is no need to hang the inflorescence shaft collection bag 4, further reducing the weight of the threshing device.

[0036] Working principle: In use, the motor 76 is started first. All the traction rollers 72 provide an axial frictional driving force for the passing inflorescence shaft. Then, the rotating plate 84 is rotated through the first connecting rod 11, and the diameter of the threshing hole formed by the shearing blade 6 increases, making it easier to smoothly pass the thicker end of the cardamom inflorescence shaft through the threshing hole. After the inflorescence shaft passes through the third through hole 15 on the rotating plate 84 and the second through hole 14 on the second support plate 3, the end of the inflorescence shaft is clamped by the rotating traction rollers 72. At this time, the first connecting rod 11 is released. Under the action of the spring 13, the second connecting rod 12 drives the rotating plate 84 to rotate in the opposite direction, thereby shearing the blade... As the diameter of the threshing hole formed by 6 decreases, the shearing blade 6 adaptively abuts against the outer wall of the inflorescence axis. During the rotation of the traction roller 72, it continuously provides an axial frictional force to the inflorescence axis. During the movement of the inflorescence axis, different traction rollers 72 relay the force, continuously providing a stable frictional force. The stalk at the connection between the fruit and the inflorescence axis is subjected to the shearing force of the shearing blade 6, and the fruit separates from the inflorescence axis. The fruit falls and is collected by the fruit collection bag 2 below. The entire inflorescence axis passes through the threshing hole and is completely held through the clamping channel formed by the traction roller 72, and finally falls and is collected by the inflorescence axis collection bag below, thus realizing the threshing of cardamom and the separation of the fruit from the inflorescence axis.

[0037] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A portable cardamom threshing device, characterized in that: The device includes a base (16), on which a first support plate (1) and a second support plate (3) are provided, which are parallel to each other. A first through hole (5) is provided on the first support plate (1), and a second through hole (14) is provided on the second support plate (3). The axes of the first through hole (5) and the second through hole (14) are collinear. A plurality of shearing blades (6) are provided in the first through hole (5). The plurality of shearing blades (6) surround to form a threshing hole to prevent the granules on the cardamom from passing through the first through hole (5). A synchronous adjustment component (8) is provided on the side surface of the first support plate (1) near the second support plate (3). The synchronous adjustment component (8) is used to synchronously drive the plurality of shearing blades (6) to move radially. A traction component (7) is provided on the side surface of the second support plate (3) away from the first support plate (1). The traction component (7) is used to drive the inflorescence axis of the cardamom to move axially to pass through the second through hole (14).

2. The portable cardamom threshing device according to claim 1, characterized in that: The number of shearing blades (6) is 6-8, and the cross-section of the shearing blades (6) is arc-shaped.

3. The portable cardamom threshing device according to claim 1, characterized in that: The edges of adjacent shear blades (6) that are close to each other are provided with staggered teeth (61).

4. The portable cardamom threshing device according to claim 1, characterized in that: The synchronous adjustment component (8) includes several fixed support seats (81). Several fixed support seats (81) are installed on the side surface of the first support plate (1) near the second support plate (3). Several fixed support seats (81) are arranged in a ring array around the first through hole (5). A slide rod (82) is slidably connected to the fixed support seat (81). One end of the slide rod (82) is fixedly connected to the shearing blade (6). The end of the slide rod (82) away from the shearing blade (6) is connected to a slider (83). A rotating plate (84) is rotatably connected to the side surface of the second support plate (3) near the first support plate (1). A third through hole (15) is opened on the rotating plate (84). The axis of the third through hole (15) is collinear with the axis of the second through hole (14). The rotating plate (84) is also provided with an involute groove (85). The slider (83) is slidably connected in the involute groove (85).

5. A portable cardamom threshing device according to claim 4, characterized in that: The edge of the rotating plate (84) is connected to a second connecting rod (12), and the end of the second connecting rod (12) is connected to a spring (13). The end of the spring (13) away from the second connecting rod (12) is fixedly connected to the second support plate (3). The spring (13) is used to drive the rotating plate (84) to rotate so as to adaptively reduce the diameter of the threshing hole.

6. A portable cardamom threshing device according to claim 5, characterized in that: The edge of the rotating plate (84) is also connected to a first connecting rod (11), which is used to rotate the rotating plate (84) in the opposite direction to increase the diameter of the threshing hole so that the inflorescence axis of the cardamom can pass through the threshing hole.

7. The portable cardamom threshing device according to claim 1, characterized in that: The traction assembly (7) includes multiple rotating assemblies arranged along the axis of the second through hole (14). Each rotating assembly includes a support base (71) mounted on the side surface of the second support plate (3) away from the first support plate (1). Four rotating shafts (73) are rotatably connected to the support base (71). The four rotating shafts (73) are arranged in a square. The plane of the four rotating shafts (73) is parallel to the second support plate (3). The ends of adjacent rotating shafts (73) are connected by bevel gears (74) to rotate synchronously in opposite directions. Traction rollers (72) are sleeved on the rotating shafts (73). The four traction rollers (72) rub against the outer wall of the inflorescence axis of the grass fruit. A motor (76) is mounted on the side surface of the second support plate (3) away from the first support plate (1). The output end of the motor (76) drives the rotating shafts (73) of the multiple rotating assemblies to rotate synchronously through a belt (77).

8. A portable cardamom threshing device according to claim 7, characterized in that: The outer wall of the traction roller (72) is provided with a strip-shaped protrusion (75), the length direction of the strip-shaped protrusion (75) is arranged along the axis of the traction roller (72), and the top of the strip-shaped protrusion (75) away from the traction roller (72) is designed to be arc-shaped.

9. A portable cardamom threshing device according to claim 1, characterized in that: The first support plate (1) has a surrounding plate (9) on the side surface away from the second support plate (3) to block the splashed cardamom granules. The surrounding plate (9) has an observation hole (10).

10. A portable cardamom threshing device according to claim 9, characterized in that: A first hook (17) is installed on the side surface of the first support plate (1) away from the second support plate (3). The first hook (17) is located below the first through hole (5). A fruit collection bag (2) is hung on the first hook (17). A second hook (18) is installed on the side surface of the second support plate (3) away from the first support plate (1). The second hook (18) is located below the second through hole (14). A flower stalk collection bag (4) is hung on the second hook (18).

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