A device for threshing cardamom

Abstract

The utility model relates to grass fruit threshing technical field discloses a kind of grass fruit threshing device;It is composed of device main body and threshing component by it.The device main body is equipped with feed inlet and discharge port, and the lowest end of discharge port is higher than the upper surface of threshing component.Threshing component contains power source (optionally using speed reducer motor, and driving rotating shaft by transmission belt pulley), rotating shaft and carousel, and there are different regional settings on carousel.The upper end surface of carousel is in convex arc dome shape, and is equipped with buffer soft column, different height beating rod, and the upper end of beating rod has extension and outer wall rubber processing.The device realizes grass fruit threshing and impurity separation using the rotation centrifugal force of carousel, has the advantages of efficient threshing, protecting grass fruit, optimizing separation, preventing jam etc., compact structure, strong practicality, and meets the grass fruit large-scale production and processing demand.

Description

Technical Field

[0001] This utility model relates to the field of cardamom threshing technology, specifically, to a cardamom threshing device. Background Technology

[0002] Cardamom, the fruit of a perennial herbaceous plant belonging to the genus Cardamom in the ginger family, holds an important position in both the food flavoring and medicinal fields. In the food industry, its unique and rich aroma and spicy taste impart a distinctive flavor to various dishes, braised foods, and seasonings, making it a favorite spice among many chefs and food enthusiasts. In the medicinal field, cardamom possesses the effects of drying dampness and warming the middle jiao (spleen and stomach), as well as treating malaria and eliminating phlegm, and is widely used in the preparation of various traditional Chinese medicine formulas.

[0003] Currently, cardamom threshing still relies on manual labor in many areas. This manual threshing method is extremely inefficient. Cardamom fruits are numerous and small, and manually peeling each fruit from the bunch requires a significant amount of time and effort, making it difficult to meet the needs of large-scale production and processing. Furthermore, manual threshing is extremely labor-intensive. Prolonged repetitive threshing easily leads to worker fatigue, causing strain on the hands, back, and other areas, negatively impacting their health.

[0004] With the continuous growth in market demand for cardamom, traditional manual threshing methods are becoming increasingly inadequate for the industry's development. Therefore, developing a highly efficient, stable, and practical cardamom threshing device is urgently needed to improve threshing efficiency, reduce labor intensity, and ensure threshing quality. This device can free up labor and promote the large-scale and modern development of the cardamom industry. Summary of the Invention

[0005] In order to solve the problems mentioned in the background art, the present invention provides a cardamom threshing device to solve the above problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A cardamom threshing device, comprising a main body and a threshing assembly;

[0008] The main body of the device is equipped with a feed inlet and a discharge outlet, with the lowest point of the discharge outlet being higher than the upper surface of the threshing assembly;

[0009] The threshing assembly is located in the inner cavity of the main body of the device. The threshing assembly includes a power source, a rotating shaft and a turntable. The power source is used to drive the rotating shaft to rotate along its own axis. The turntable is coaxially fixed on the rotating shaft.

[0010] Several striking levers are vertically fixed on the upper surface of the turntable;

[0011] A gap is left between the turntable and the inner wall of the device body, and the size of the gap is smaller than the size of the cardamom particles.

[0012] After the cardamom threshing device is started, the power source drives the rotating shaft to rotate along its own axis, and the turntable, which is coaxially fixed on the rotating shaft, rotates synchronously. When the cardamom ears with cardamom fruits are put into the inner cavity of the device through the feed port of the main body of the device, the striking rods fixed vertically on the turntable strike the cardamom fruits as the turntable rotates, causing the cardamom fruits to gradually peel off the ears.

[0013] During the rotation of the turntable, centrifugal force is generated. The peeled cardamom and impurities on the cardamom spikes (such as broken leaves, twigs, etc.) move outwards from the turntable under the action of centrifugal force. Since there is a gap smaller than the size of the cardamom particles between the turntable and the inner wall of the device, this gap is the drop-off point for impurities, which can fall through this gap, while the cardamom, due to its larger size, will not fall.

[0014] Furthermore, because the discharge port is higher than the top surface of the turntable, impurities cannot fall from the discharge port. However, due to its large size, the cardamom can be flipped upwards and discharged from the discharge port under the continuous action of centrifugal force, thereby realizing the separation of cardamom from impurities and the discharge process of cardamom.

[0015] The aforementioned device utilizes the centrifugal force generated by the rotation of the turntable to separate cardamom from impurities, while simultaneously threshing the cardamom. This simplifies the originally complex threshing and separation process into a single step, greatly improving the overall efficiency of cardamom threshing. It meets the high-efficiency requirements of large-scale production and processing for cardamom threshing and aligns with the ever-growing trend of the cardamom market.

[0016] The design of the discharge port being higher than the upper surface of the turntable and the gap between the turntable and the inner wall of the device body being smaller than the size of the cardamom particles not only cleverly achieves effective separation of cardamom and impurities, preventing impurities from flowing out of the discharge port and affecting the quality of cardamom, but also eliminates the need for complex screening or separation devices, simplifying the device structure, reducing equipment costs and maintenance difficulty, and improving the practicality and reliability of the device.

[0017] Preferably, the upper end of the striking rod extends outwards to form an extension.

[0018] The cardamom enters the inner cavity of the device through the feed inlet. Some cardamom will impact the upper surface of the striking rod during its fall. The extension section increases the contact area, allowing the impact force to be more evenly distributed across the cardamom surface, preventing damage. The outer wall of the extension section can be coated with rubber for further protection of the cardamom.

[0019] Preferably, the upper surface of the turntable is provided with a buffer column, which is made of elastic material.

[0020] Because the cushioning posts are made of elastic material, when the grasshoppers hit them, the elastic material deforms, absorbing some of the impact force as the grasshoppers fall. This prevents the grasshoppers from being significantly damaged by directly impacting the hard surface of the turntable.

[0021] Preferably, the buffer soft column is located in a first annular area on the turntable with the axis as the center, and all striking rods are located outside the first annular area.

[0022] When the cardamom seeds fall into the inner cavity of the device through the feed inlet, they first enter the first annular area centered on the axis of the turntable. The buffer columns in this area are the first to contact the seeds. Because the buffer columns are made of elastic material, they effectively cushion the impact of the falling seeds, reducing damage caused by direct impact with the turntable. Subsequently, as the turntable rotates, the seeds move outward from the first annular area under centrifugal force. At this point, the striking rods located outside the first annular area begin to function, striking the seeds and causing them to detach from the ear of cardamom. During this process, the seeds, buffered by the buffer columns, are more stable under the impact of the striking rods, preventing excessive rolling or displacement due to excessive initial impact force, thus improving the striking effect and ensuring more complete threshing.

[0023] Preferably, the turntable has a second annular area and a third annular area arranged sequentially outside the first annular area. The striking rod is located in the second annular area and the third annular area. The height of the striking rod located in the second annular area is H1, and the height of the striking rod located in the third annular area is H2. The axis of the rotating shaft coincides with the center of the turntable, and the height of the rotating shaft extending from the upper surface of the turntable is H3. The height gradient relationship H3>H2>H1 is satisfied.

[0024] When the cardamom pods enter the inner cavity of the device through the feed inlet and fall onto the turntable, the pods will move outward along the surface of the turntable under the centrifugal force generated by the rotation of the turntable.

[0025] In the second ring area, low striking rods of height H1 are positioned close to the turntable surface. Since the fruits at the bottom of the bunch are usually tightly attached, these low striking rods can precisely peel away the fruits adhering to the bunch (such as those stuck to the bottom). Their low height effectively avoids "missed strikes" caused by excessively high striking rods, and also prevents excessive tossing of the fruit, ensuring that these fruits detach stably from the bunch. As the bunch continues to move outward under centrifugal force, it enters the third ring area. Here, the striking rod height is H2.

[0026] It intercepts the ears of fruit thrown up by centrifugal force. At this point, the medium-height striking rod can impact the ears of fruit, which becomes the main threshing zone, efficiently separating the cardamom fruit from the ears of fruit.

[0027] The height H3 at the top of the rotating shaft is greater than H2, and it is located at the axis center. The rotating shaft extends beyond the upper surface of the turntable, forming a physical barrier that restricts the movement of the ears towards the axis center area during ear movement. This prevents the ears from getting tangled on the rotating shaft or splashing into ineffective areas, ensuring that the ears always move within the effective threshing area. The entire process forms an integrated striking space that perfectly matches the movement trajectory of the ears on the turntable due to centrifugal force, achieving highly efficient threshing.

[0028] Preferably, both the inlet and outlet are located on the side wall of the main body of the device, with the feeding direction of the inlet perpendicular to the discharge direction of the outlet.

[0029] The feeding direction is perpendicular to the discharge direction, which can prevent impurities in the cardamom from escaping directly from the discharge port during the falling process.

[0030] Preferably, a cleaning rod is fixed on the inner wall of the main body of the device, located above the turntable, and the cleaning rod is located outside the third annular area.

[0031] When the cardamom threshing device is operating, the turntable drives the striking rod to rotate at high speed to thresh the cardamom. Due to centrifugal force, the cardamom and ears of grain move outwards from the turntable. When they reach the outer edge of the third annular area, they approach the inner wall of the device body. Because the cardamom and ears of grain may become entangled with each other or with other parts of the device during threshing, this can cause jamming. The cleaning rod helps to loosen and guide the cardamom and ears of grain as they approach the inner wall. It breaks up the entanglement, preventing them from being squeezed and jammed in the narrow space between the turntable edge and the inner wall, ensuring that the cardamom and ears of grain can move continuously and smoothly within the device and ultimately be discharged smoothly from the outlet.

[0032] Preferably, the power source is a gasoline engine, which drives the rotating shaft to rotate via a coupling.

[0033] Compared to some power devices that rely on a fixed power source, gasoline engines do not require an external power cord and can be used flexibly in different locations without being restricted by the location of the power source.

[0034] Preferably, the power source is a geared motor, and a transmission pulley is provided between the geared motor and the rotating shaft.

[0035] Geared motors are relatively small and compact. When used in conjunction with a drive belt pulley, they eliminate the need for a complex fuel supply system and exhaust system like gasoline engines, resulting in a simpler and more compact overall power system layout.

[0036] Preferably, the upper surface of the turntable is in the shape of a convex arc dome.

[0037] The convex, dome-shaped surface design ensures a more even distribution of the cardamom on the turntable, preventing it from concentrating in any one area. This guarantees that the striking rod can make fuller contact with the cardamom, improving striking efficiency. Simultaneously, under centrifugal force, the speed and trajectory of the cardamom moving towards the edge are more stable, facilitating the falling of impurities through the gap between the turntable and the inner wall of the device, and ensuring the smooth discharge of the cardamom from the outlet. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the external structure of the cardamom threshing device in Example 1;

[0040] Figure 2 This is a schematic diagram of the bottom structure of the cardamom threshing device in Example 1;

[0041] Figure 3 This is a top view of the cardamom threshing device in Example 1 after the cover plate has been removed;

[0042] Figure 4 This is a schematic diagram of the turntable structure in Example 1;

[0043] Figure 5 This is a schematic diagram of the internal structure of the main body of the device in Example 1;

[0044] Figure 6 This is a schematic diagram of the internal structure of the cardamom threshing device in Example 1.

[0045] Meaning of the reference numerals in the diagram:

[0046] 110. Main body of the device; 1101. Feed inlet; 1102. Discharge outlet; 1201. Rotating shaft; 1202. Turntable; 130. Striking rod; 1301. Extension; 140. Gap; 150. Cleaning rod; 160. Gear motor; 1601. Transmission pulley; 170. Buffer column; 180. Cover plate; 190. Feed guide plate; 1901. Baffle; 200. Guiding device; 210. Bearing mounting base. Detailed Implementation

[0047] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0048] Example 1

[0049] The cardamom threshing device in this embodiment mainly consists of the device body 110 and the threshing components.

[0050] The main body 110 of the device is provided with a feed inlet 1101 and a discharge outlet 1102, both of which are located on the side wall of the main body 110. The feeding direction of the feed inlet 1101 is perpendicular to the discharge direction of the discharge outlet 1102. The lowest point of the discharge outlet 1102 is 1-3 cm higher than the upper surface of the threshing assembly. In this embodiment, the lowest point of the discharge outlet 1102 is 1.2 cm higher than the upper surface of the detachment assembly.

[0051] The main body 110 of the device has an opening at its upper end, and a cover plate 180 is provided at the opening. The cover plate 180 can be fixed to the main body 110 of the device by bolts or other means; this effectively solves the industry problem of cardamom splattering during the threshing process. A feed guide plate 190 is provided on the side wall of the main body 110 of the device. The side of the feed guide plate 190 near the feed inlet 1101 is inclined downwards, and baffles 1901 are provided on the left and right side walls and the side wall away from the feed inlet 1101 of the feed guide plate 190. Cardamom placed on the feed guide plate 190 can slide into the inner cavity of the main body 110 of the device under the action of gravity.

[0052] A guiding device 200 is provided at the discharge port 1102. The side of the guiding device 200 away from the main body 110 of the device is tilted downwards to guide the cardamom to tilt downwards and leave the inner cavity of the main body 110 of the device.

[0053] The threshing assembly is housed within the inner cavity of the main body 110 of the device and includes a geared motor 160 as a power source, a rotating shaft 1201, and a turntable 1202. A transmission pulley 1601 is provided between the geared motor 160 and the rotating shaft 1201. Through the transmission pulley 1601, the geared motor 160 drives the rotating shaft 1201 to rotate along its own axis. The turntable 1202 is coaxially fixed to the rotating shaft 1201. A bearing mounting seat 210 is fixed on the main body 110 of the device, and the rotating shaft 1201 is mounted on the bearing mounting seat 210.

[0054] When installing the turntable 1202, the cover plate 180 can be opened, and the turntable 1202 can be placed into the inner cavity of the device body 110 from top to bottom.

[0055] The upper surface of the turntable 1202 is convex arc-shaped dome. Around the axis of rotation, a first annular region, a second annular region, and a third annular region are sequentially arranged from the inside out on the turntable 1202. A buffer soft column 170 made of elastic material is installed within the first annular region. Several striking rods 130 are vertically fixed within the second and third annular regions. The striking rods 130 in the second annular region have a height of H1, and the striking rods 130 in the third annular region have a height of H2, satisfying H2 > H1. The axis of the rotating shaft 1201 coincides with the center of the turntable 1202, and the height of the rotating shaft 1201 extending beyond the upper surface of the turntable 1202 is H3, satisfying H3 > H2 > H1. The upper surfaces of the striking rods 130 extend outwards to form extensions 1301, the outer walls of which are covered with rubber.

[0056] H3 should be greater than twice the average length of the cardamom spike, H1 should be less than the average length of the cardamom spike, and H2 should be between H1 and H3.

[0057] A gap 140 is left between the turntable 1202 and the inner wall of the device body 110, and the size of the gap 140 is smaller than the size of the cardamom particles. A cleaning rod 150 is fixed on the inner wall of the device body 110, which is located above the turntable 1202 and outside the third annular area.

[0058] When the cardamom threshing device is started, the geared motor 160 drives the rotating shaft 1201 to rotate along its own axis through the transmission belt pulley 1601, and the turntable 1202, which is coaxially fixed on the rotating shaft 1201, rotates synchronously.

[0059] The cardamom spikes containing cardamom fruits enter the inner cavity of the device body 110 through the feed inlet 1101. Their trajectory as they fall onto the turntable 1202 is parabolic, first landing in the first annular region centered on the axis. The buffer columns 170 in this region absorb the impact force of the falling cardamom fruits using the deformation of the elastic material, reducing damage caused by direct impact from the cardamom fruits onto the turntable 1202. Since the discharge outlet 1102 is higher than the upper surface of the turntable 1202 and the feed inlet 1101 is perpendicular to the discharge outlet 1102, impurities are prevented from falling directly from the discharge outlet 1102 during the fall of the cardamom fruits.

[0060] As turntable 1202 rotates, under the action of centrifugal force, the cardamom pods move outward from the first annular area. Upon entering the second annular area, a low striking rod 130 of height H1 is positioned close to the surface of turntable 1202, precisely separating the tightly attached pods at the bottom of the threshing cluster, avoiding "missed strikes" and excessive tossing. The pods continue to move towards the third annular area under the action of centrifugal force. Here, the striking rod 130 of height H2 intercepts the pods thrown up by centrifugal force, applying impact force, becoming the main threshing zone, further separating the cardamom pods from the pods.

[0061] Throughout the process, the rotating shaft 1201 extends a height H3 above the upper surface of the turntable 1202, forming a physical barrier that restricts the movement of the cardamom ears towards the central area, preventing them from becoming entangled on the rotating shaft 1201 or splashing into ineffective areas, ensuring that the ears remain within the effective threshing area. During the falling process, some cardamom ears impact the extension 1301 on the upper surface of the striking rod 130. The extension 1301 increases the impact area of ​​the cardamom ears, distributing the impact force evenly across the surface, while the rubber coating further protects them. Under centrifugal force, the cardamom ears move outwards from the turntable 1202, and impurities fall through the gap 140 between the turntable 1202 and the inner wall of the device body 110. Under the continued action of centrifugal force, the cardamom ears flip upwards and are discharged from the outlet 1102.

[0062] When the cardamom and fruit spikes move to the outer side of the third ring area and approach the inner wall of the device body 110, the cleaning rod 150 moves and guides them to break the entanglement between the cardamom and fruit spikes, preventing them from being squeezed and stuck in the narrow space between the edge of the turntable 1202 and the inner wall, and ensuring that they can be discharged smoothly from the discharge port 1102.

[0063] By setting multiple ring-shaped areas with different heights of striking rods 130, combined with the movement trajectory of the cardamom on the turntable 1202, a gradual and efficient threshing process is achieved, improving threshing efficiency and meeting the needs of large-scale production. The soft cushioning column 170 and the extension 1301 of the striking rod 130 are coated with rubber, which effectively reduces damage to the cardamom during the threshing process and improves the quality of the cardamom.

[0064] The design of the discharge port 1102 being higher than the upper surface of the turntable 1202, the feed port 1101 being perpendicular to the direction of the discharge port 1102, and the gap 140 between the turntable 1202 and the inner wall of the device body 110, enables the effective separation of cardamom and impurities, preventing impurities from affecting the quality of cardamom.

[0065] The power system, employing a geared motor 160 and a transmission pulley 1601, features a simple and compact layout, small size, and ease of installation and operation. Meanwhile, the convex arc-shaped dome-shaped turntable 1202 design ensures more even distribution of cardamom, improves striking efficiency, and facilitates impurity removal and cardamom discharge.

[0066] Example 2

[0067] Compared to Embodiment 1, the difference lies in the power source used. This embodiment uses a gasoline engine, which drives the rotating shaft 1201 to rotate through a pulley, a rotary gearbox, and a coupling. The pulley can reduce the resonance generated by the operation of the gasoline engine, and the rotary gearbox can change the direction of the gasoline engine output shaft, making the gasoline engine output shaft vertically upward.

[0068] In addition to gasoline engines and geared motors 160, any mechanism that can make the rotating shaft 1201 rotate can be used as a power source, such as biomass gas generators and pneumatic motors.

[0069] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A cardamom threshing device, characterized in that, Includes the main body of the device (110) and the threshing assembly; The main body (110) of the device is provided with a feed inlet (1101) and a discharge outlet (1102), and the lowest end of the discharge outlet (1102) is higher than the upper surface of the threshing assembly; The threshing assembly is disposed in the inner cavity of the main body (110) of the device. The threshing assembly includes a power source, a rotating shaft (1201) and a turntable (1202). The power source is used to drive the rotating shaft (1201) to rotate along its own axis. The turntable (1202) is coaxially fixed on the rotating shaft (1201). Several striking rods (130) are vertically fixed on the upper end face of the turntable (1202). A gap (140) is left between the turntable (1202) and the inner wall of the device body (110), and the size of the gap (140) is smaller than the size of the cardamom particles.

2. The cardamom threshing device according to claim 1, characterized in that: The upper end of the striking rod (130) extends outwards to form an extension (1301).

3. The cardamom threshing device according to claim 1, characterized in that: The upper surface of the turntable (1202) is provided with a buffer soft column (170), which is made of elastic material.

4. The cardamom threshing device according to claim 3, characterized in that: The buffer soft column (170) is located in the first annular area on the turntable (1202) with the axis as the center, and all the striking rods (130) are located outside the first annular area.

5. A cardamom threshing device according to claim 4, characterized in that: The turntable (1202) has a second annular area and a third annular area arranged sequentially outside the first annular area. The striking rod (130) is arranged in the second annular area and the third annular area. The height of the striking rod (130) located in the second annular area is H1; the height of the striking rod (130) located in the third annular area is H2. The axis of the rotating shaft (1201) coincides with the center of the turntable (1202). The height of the rotating shaft (1201) extending out of the upper surface of the turntable (1202) is H3. And the height gradient relationship H3> H2> H1 is satisfied.

6. The cardamom threshing device according to claim 1, characterized in that: The feed inlet (1101) and the discharge outlet (1102) are both located on the side wall of the main body (110) of the device. The feeding direction of the feed inlet (1101) is perpendicular to the discharge direction of the discharge outlet (1102).

7. The cardamom threshing device according to claim 1, characterized in that: A cleaning rod (150) is fixed on the inner wall of the main body (110) above the turntable (1202), and the cleaning rod (150) is located outside the third annular area.

8. The cardamom threshing device according to claim 1, characterized in that: The power source is a gasoline engine, which drives the rotating shaft (1201) to rotate via a coupling.

9. A cardamom threshing device according to claim 1, characterized in that: The power source is a geared motor (160), and a transmission pulley (1601) is provided between the geared motor (160) and the rotating shaft (1201).

10. A cardamom threshing device according to claim 1, characterized in that: The upper surface of the turntable (1202) is convex arc-shaped dome.

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