Leymus chinensis seed harvesting equipment and harvesting method

Abstract

The invention relates to the technical field of leymus chinensis harvesting, in particular to leymus chinensis seed harvesting equipment and a harvesting method. The leymus chinensis seed harvesting equipment is used for harvesting leymus chinensis seeds before leymus chinensis is harvested. The rack is constructed to bear the deposition box and walk on the sheep grass land along with movement of the traction equipment. The deposition box is used for containing the leymus chinensis seeds harvested by the collector. A harvesting opening is formed in the front side, in the advancing direction, of the deposition box. And the collector is arranged at the harvesting opening. The top of the collector is provided with an arc plate. And a channel is arranged between the arc plate and the collector. A passage extends from the harvest opening to the interior of the deposition tank. The collector is configured to rotate under power drive and impact grass ears from bottom to top along stalks of leymus chinensis, so that leymus chinensis seeds are separated from the stalks, and a negative pressure area for adsorbing the grass ears is generated in the channel. According to the leymus chinensis seed harvesting equipment, only leymus chinensis seeds are harvested, leymus chinensis stalks are reserved, and the harvesting efficiency and harvesting quality of the leymus chinensis seeds are improved.

Description

Technical Field

[0001] The invention relates to the technical field of leopard grass harvesting, and in particular to a leopard grass seed harvesting device and a harvesting method. Background Art

[0002] Leymus chinensis is a kind of grass in the Gramineae family. The seeds are easy to stick together, and the stems, leaves and seeds are entangled together, making it difficult to separate. The unit yield of seeds and the ratio of seeds to grass are low. After the seeds mature, the water content of the stems and leaves of the plants is high, which is not suitable for full feeding and harvesting. After the seeds mature, they naturally fall off strongly, and the harvest must be completed within a short maturity period.

[0003] There are two types of existing forage seed combine harvesters: one is a model modified from a grain combine harvester; the other is a combine harvester dedicated to forage seeds. Grain combine harvesters harvest forage seeds generally based on traditional grain combine harvesters by modifying or replacing some parts and changing some working parameters to harvest forage seeds. In addition to the functions of the original machine, the modified grain combine harvester is also adapted to the conditions of grass seed harvesting. The harvesting process includes cutting, conveying, threshing, separation and cleaning.

[0004] At present, the harvesting method of sheepgrass seeds is similar to the harvesting method of wheat, and conventional forage harvesters are modified to adapt to sheepgrass harvesting. For example, the sheepgrass stubble is harvested and threshed after leaving 10cm-15cm. However, the above harvesting method has the problem that the specific gravity of the sheepgrass caryopsis is small, and the seeds are easily discharged with the stems and leaves after threshing, resulting in a high seed loss rate.

[0005] After searching, Chinese patent document CN117561883A discloses a threshing device and method for sheep grass seeds. The threshing device for sheep grass seeds puts the collected sheep grass into the shell horizontally, and two conveyor belts clamp the stems of the sheep grass and transfer the sheep grass to the lower part of the shell. At the same time, the motor drives the threshing frame to rotate. During the downward transmission of the sheep grass, the threshing frame rotates and beats the sheep grass spikes in turn, and the seeds of the sheep grass spikes fall off, thereby quickly threshing the sheep grass seeds.

[0006] However, the above-mentioned sheep grass seed threshing device has the following defects during use: it needs to be harvested first, then transported to a special site, and then threshed, which involves the conversion of multiple links and equipment, increasing manpower, material and time costs. In addition, during the stacking, transportation and threshing process after the sheep grass is harvested, if the operation is improper or the storage conditions are not good, it is easy to cause problems such as moisture, mold, and heat in the seeds, thereby reducing the quality and germination rate of the seeds and increasing the risk of seed loss. Summary of the invention

[0007] In view of the above technical problems, in a first aspect, the present invention proposes a sheep grass seed harvesting device, which is used to harvest sheep grass seeds before harvesting sheep grass, and comprises a frame, a collector and a deposition box; The frame is provided with a connecting frame for connecting the traction device, and the frame is configured to carry the sedimentation box and walk on the sheep grass grassland with the movement of the traction device; The deposition box is installed on the frame and is used to store the sheepgrass seeds harvested by the collector. The front side of the deposition box in the traveling direction is provided with a harvesting port; The collector is arranged at the harvesting port, and an arc plate is arranged on the top of the collector. A channel is arranged between the arc plate and the collector, and the channel extends from the harvesting port to the inside of the sedimentation box. The collector is configured to rotate under power drive, and impact the grass spikes from bottom to top along the stems of the sheep grass, so that the sheep grass seeds are separated from the stems, and a negative pressure zone is generated in the channel to adsorb the grass spikes.

[0008] Preferably, a baffle is provided in the sedimentation box, which is located at the bottom of the sedimentation box and close to the harvesting port. The baffle is constructed to block the channel from bottom to top along the height direction of the sedimentation box, and a feed port is left near the arc plate for sheep grass seeds to enter the sedimentation box.

[0009] Preferably, the side wall of the sedimentation box on the harvesting port side is arranged to be inclined downward, and a shutter is provided on the side wall. The shutter is located above the arc plate, and the shutter is constructed to discharge impurities mixed in the sheepgrass seeds from the inside of the sedimentation box to the outside.

[0010] Preferably, the collector comprises a brush roller, the end of which is mounted on a frame via a bearing seat, and bristle bundles are evenly distributed on the side wall of the brush roller.

[0011] Preferably, a transmission component is provided on the frame, the transmission component is installed on the top of the frame, and the transmission component is configured to transmit the power of the traction device to the collector.

[0012] Preferably, a pair of running wheels are provided at the bottom of the frame, and the running wheels are mounted on the frame through bearing seats.

[0013] Preferably, a discharge door is provided on the sedimentation box, and the discharge door is located on a side away from the harvesting port.

[0014] Preferably, an ultrasonic sensor is provided on the top of the sedimentation box, and the ultrasonic sensor is constructed to emit ultrasonic waves vertically to the bottom of the sedimentation box, and calculate the distance from the seed surface in the sedimentation box to the ultrasonic sensor based on the time difference of the ultrasonic reflection wave, thereby obtaining the stacking height of the seeds in the sedimentation box.

[0015] In a second aspect, the present invention further provides a harvesting method using the above-mentioned sheep grass seed harvesting device, harvesting the sheep grass seeds before harvesting the sheep grass, comprising the following steps: Start the traction equipment and pull the frame onto the sheepgrass grassland, making sure the harvesting port is located in the front side of the travel direction; The collector is driven by power and rotates at the harvesting port, impacting the grass spike from bottom to top along the stem of the sheep grass, so that the sheep grass seeds are separated from the stem, and drive the sheep grass seeds into the channel between the collector and the arc plate. The rotating motion of the collector generates airflow in the channel, and generates a negative pressure area in the channel to adsorb the grass spike. The sheep grass seeds enter the deposition box along with the airflow in the channel. As the traction equipment moves forward, the threshed sheepgrass stalks gradually separate from the channel, keeping the sheepgrass stalks in an upright state.

[0016] Preferably, an ultrasonic sensor is installed on the top of the sedimentation box to ensure that the probe of the ultrasonic sensor is vertically downward, so as to detect the accumulation of sheep fescue seeds in the sedimentation box. When the sheep fescue seed harvesting operation starts, the ultrasonic sensor automatically transmits an ultrasonic pulse signal at a set time interval. The ultrasonic pulse signal propagates into the sedimentation box with a predetermined frequency and intensity, and is reflected after encountering the sheep fescue seed accumulation surface. The receiving unit of the ultrasonic sensor receives the reflected ultrasonic signal and calculates the distance from the sensor probe to the seed accumulation surface based on the time difference between the transmitted signal and the received signal.

[0017] Compared with the prior art, the chinensis seed harvesting device and harvesting method provided by the present invention have the following outstanding substantial features and significant improvements: 1. The collector of the sheepgrass seed harvesting equipment has a unique structural design, a channel formed between the arc plate on the top and the collector, and a coordinated working mode of rotary impact and negative pressure adsorption. It can effectively impact the grass spikes from bottom to top along the sheepgrass stems and adsorb and separate the seeds. Compared with the traditional manual or relatively simple mechanical harvesting method, this precise collection action can more efficiently separate and collect the sheepgrass seeds from the stems, greatly reducing the situation of seeds being left out in the field. At the same time, it solves the problem of sheepgrass seed harvesting. Only sheepgrass seeds are harvested, and the sheepgrass stems are retained after harvesting the sheepgrass seeds, which improves the harvesting efficiency and quality of sheepgrass seeds.

[0018] 2. After being connected to the traction equipment, the sheepgrass seed harvesting equipment can continue to move and operate on the sheepgrass grassland. During the movement, the collector continuously collects the sheepgrass seeds and smoothly transports the seeds to the deposition box through the channel. The continuous operation mode avoids the time consumed by frequent start-stop and transfer operations in traditional harvesting methods, so that the seed harvesting task can be completed quickly in large areas of sheepgrass planting, which significantly improves the continuity and efficiency of the operation.

[0019] 3. Since the collector of the sheep fescue seed harvesting equipment adopts the method of impacting the grass ears from bottom to top and combines negative pressure adsorption to collect seeds, compared with some traditional rough harvesting or knocking collection methods, it can more accurately control the force and action mode in the process of separating seeds from stems, effectively reducing the physical damage to the sheep fescue seeds, which is beneficial to maintaining the integrity and activity of the seeds, and then beneficial to improving the germination rate and storage stability of the seeds, laying a good foundation for subsequent seed processing, storage and sowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of a sheep grass seed harvesting device in an embodiment of the present invention.

[0021] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of a sheep grass seed harvesting equipment from another perspective.

[0022] Figure 3 yes Figure 1 main view.

[0023] Figure 4 yes Figure 3 Top view of the .

[0024] Figure 5 yes Figure 4 Cross-sectional view at AA in the middle.

[0025] Figure numerals: 1. frame; 2. collector; 3. sedimentation box; 4. connecting frame; 5. transmission parts; 6. walking wheels; 7. unloading door; 8. arc plate; 9. channel; 21. brush roller; 22. bristle bundle; 31. harvesting port; 32. shutter; 33. baffle; 34. feed port; 51. transmission box; 52. transmission shaft; 53. chain drive mechanism. DETAILED DESCRIPTION

[0026] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-Figure 5 As shown, a sheepgrass seed harvesting device proposed in an embodiment of the present invention is intended to solve the problem of harvesting sheepgrass seeds, only harvest sheepgrass seeds, retain sheepgrass stems after harvesting the sheepgrass seeds, and improve the harvesting efficiency and quality of sheepgrass seeds.

[0028] The sheepgrass seed harvesting device proposed in the embodiment of the present invention can effectively impact the grass spike from bottom to top along the sheepgrass stem and absorb and separate the seeds through a unique structural design, a channel formed between the arc plate at the top and the collector, and a cooperative working mode of rotary impact and negative pressure adsorption. This precise collection action can more efficiently separate and collect the sheepgrass seeds from the stems, greatly reducing the situation where seeds are left out in the field. At the same time, it solves the problem of harvesting sheepgrass seeds, only harvesting sheepgrass seeds, and retaining the sheepgrass stems after harvesting the sheepgrass seeds, thereby improving the harvesting efficiency and harvesting quality of the sheepgrass seeds.

[0029] like Figure 1 Combination Figure 2 As shown, a sheep grass seed harvesting device is used to harvest sheep grass seeds before harvesting sheep grass, including a frame 1, a collector 2 and a deposition box 3. A connecting frame 4 for connecting a traction device is provided on the frame 1. The frame 1 is configured to carry the deposition box 3 and walk on the sheep grass grassland with the movement of the traction device.

[0030] like Figure 3 As shown, the sedimentation box 3 is installed on the frame 1, and is used to store the sheepgrass seeds harvested by the collector 2. The sedimentation box 3 is provided with a harvesting port 31 at the front side in the traveling direction.

[0031] like Figure 3 Combination Figure 5 As shown, the collector 2 is arranged at the harvesting port 31. A circular arc plate 8 is arranged on the top of the collector 2. A channel 9 is arranged between the circular arc plate 8 and the collector 2. The channel 9 extends from the harvesting port 31 to the inside of the sedimentation box 3. The collector 2 is configured to rotate under power drive, impact the grass spike from bottom to top along the stem of the sheep grass, so that the sheep grass seeds are separated from the stem, and a negative pressure area is generated in the channel 9 to form an adsorption area for the grass spike.

[0032] like Figure 2 As shown, the collector 2 includes a brush roller 21. The end of the brush roller 21 is mounted on the frame 1 through a bearing seat. Brush bundles 22 are evenly arranged on the side wall of the brush roller 21. The brush roller 21 is used to comb the seeds and generate airflow, so that a negative pressure area is formed in front of the brush roller 21 to absorb the seeds, and a high-speed airflow is formed on the upper part of the brush roller 21 to throw the seeds.

[0033] The bristle bundles 22 evenly arranged on the side wall of the brush roller 21 can form a large-area contact with the sheep grass plant. When the brush roller 21 rotates, the bristle bundles 22 are like a fine comb, penetrating into the space between the sheep grass stems and the grass spikes, and effectively combing the grass spikes during the bottom-up movement, making it easier for seeds to detach from the grass spikes. Compared with simply relying on impact or a relatively single collection structure, the success rate of separating seeds from grass spikes is greatly improved, thereby increasing the amount of seeds collected.

[0034] The bristle bundle 22 is relatively soft and elastic, and can act on the seeds in a relatively gentle manner during the process of contacting and separating the seeds from the sheep grass. Compared with some rigid collection components, it can effectively avoid damage to the seeds due to excessive collision, squeezing, etc., better protect the integrity of the seeds, and facilitate the subsequent germination and storage of the seeds.

[0035] For example, the bristles are made of synthetic fiber materials that are wear-resistant, corrosion-resistant and have a certain degree of elasticity. The length of the bristles is between 10cm and 20cm, which can ensure that the grass spikes are effectively combed and brushed, and will not be easily entangled in the stems due to being too long. The diameter of the bristles is about 0.5mm-1mm, and a combination of multiple bundles of bristles is used, with the number of bristles in each bundle being about 50-100, so as to increase the contact area and friction with the grass spikes. At the root of the bristles, a binding process is used to fix it on the side wall of the brush roller 21, such as by winding with metal wire or bonding with special glue, to ensure that the bristles will not fall off during high-speed rotation.

[0036] In order to improve the connection effect of the bristle bundle 22, a plurality of fixing rings or slots are evenly distributed on the side wall of the brush roller 21 for fixing the bristle bundle 22. The spacing of the fixing rings or slots is designed according to the length and distribution density of the bristles, and is generally between 5cm and 10cm. The fixing ring is made of high-strength plastic or metal material, and its shape matches the brush roller 21, and is fixed on the shaft by welding or tight fit. The slot can be directly processed on the shaft body, and its depth and width can accommodate the root of the bristle bundle 22 and ensure that the bristles will not shake after installation.

[0037] like Figure 5 As shown, a baffle 33 is provided in the sedimentation box 3. The baffle 33 is located at the bottom of the sedimentation box 3 and close to the harvesting port 31. The baffle 33 is configured to block the channel 9 from bottom to top along the height direction of the sedimentation box 3, and a feed port 34 for the sheep grass seeds to enter the sedimentation box 3 is left near the arc plate 8.

[0038] The baffle 33 effectively guides the deposition path of the Leymus chinensis seeds, so that when the seeds enter the deposition box 3, they must enter the specific area of ​​the box through the feed port 34 along the path defined by the baffle 33. This helps to prevent the seeds from being scattered randomly in the deposition box 3, so that the seeds can be piled up more orderly, improve the utilization rate of the internal space of the deposition box 3, and facilitate the subsequent cleaning and collection of the seeds.

[0039] In addition, the baffle 33 is also used to prevent seed backflow. During the operation of the device, the seeds that have entered the sedimentation box 3 tend to flow back to the channel 9 due to air flow fluctuations, device vibrations, etc. The baffle 33 ensures that once the seeds enter the sedimentation box 3, they can stay there stably, maintaining the stability of the seed harvesting and storage process, and reducing the reduction in collection efficiency that may be caused by seed backflow.

[0040] In addition, the baffle 33 is also used to stabilize the airflow and negative pressure environment. By reasonably adjusting the height, shape and spacing of the baffle 33 with other components, the flow characteristics of the airflow in the channel 9 can be optimized, making the formation and maintenance of the negative pressure zone more stable. This is conducive to the collector 2 being able to continuously and effectively absorb the sheepgrass seeds and transport them to the deposition box 3, thereby ensuring the stable operation of the entire seed harvesting equipment.

[0041] According to some preferred embodiments of the present invention, Figure 4 Combination Figure 5 As shown, the side wall of the sedimentation box 3 located on the side of the harvesting port 31 is arranged to be tilted downward. A shutter 32 is provided on the side wall. The shutter 32 is located above the arc plate 8. The shutter 32 is configured to discharge impurities mixed in the sheepgrass seeds from the inside of the sedimentation box 3 to the outside.

[0042] The design of the inclined side wall and the shutter 32 helps to discharge impurities in time. The impurities will move toward the inclined side wall along with the airflow and be discharged through the shutter 32, thereby preventing the impurities from accumulating in large quantities in the sedimentation box 3.

[0043] The blade angle and spacing of the shutter 32 can be designed and adjusted according to the characteristics of the sheep fescue seeds and impurities, so that the impurities can be discharged through the shutter 32 under the action of airflow and their own gravity, while the seeds are not easy to pass through the shutter 32 due to their large size or obstruction of the internal structure, thereby achieving effective separation of seeds and impurities, improving the purity of harvested seeds, and facilitating subsequent seed processing, storage and sowing.

[0044] like Figure 1 As shown, a transmission component 5 is provided on the frame 1. The transmission component 5 is installed on the top of the frame 1. The transmission component 5 is configured to transmit the power of the traction device to the collector 2. The transmission component 5 is installed on the top of the frame 1, making full use of the relatively open space above the frame 1 and avoiding occupying too much space at the bottom of the frame 1 or other key operating areas. In this way, in the overall layout of the equipment, more space is reserved for the sedimentation box 3 and the collector 2, making the layout between the components more reasonable and reducing the risk of interference between the components.

[0045] For example, Figure 2 As shown, the transmission component 5 includes a transmission box 51, a transmission shaft 52 and a chain transmission mechanism 53. The transmission box 51 is installed on the top of the frame 1. The input end of the transmission box 51 is connected to the power output end of the traction device through a coupling, and the output end of the transmission box 51 is connected to the chain transmission mechanism 53 through the transmission shaft 52. The transmission shaft 52 transmits power to the collector 2 through the chain transmission mechanism 53, driving the brush roller 21 of the collector 2 to rotate. Among them, the transmission box 51 can be selected as a T-type reducer.

[0046] like Figure 1 As shown, a pair of running wheels 6 are provided at the bottom of the frame 1. The running wheels 6 are mounted on the frame 1 through a bearing seat. When the running wheels 6 move on the grassland, due to their small number and the design focusing on stability, they can reduce the crushing and damage to the sheep grass plants, ensuring that the sheep grass can still maintain a good growth trend after harvesting, which is conducive to the regeneration and sustainable use of the grassland.

[0047] like Figure 2 As shown, a discharge door 7 is provided on the sedimentation box 3. The discharge door 7 is located on a side away from the harvesting port 31. In this way, the position design of the discharge door 7 enables it to adapt to a variety of discharge methods. For example, the sedimentation box 3 can be connected to an external conveying pipeline or discharge device to directly transport the seeds to subsequent processing or storage equipment; or the transport vehicle can be parked under the discharge door 7 and the seeds can be collected in the vehicle compartment. Its position away from the harvesting port 31 makes it more flexible when docking with different discharge equipment or vehicles, and is not limited by the harvesting operation area, and can better meet the discharge needs of different scales and operation scenarios.

[0048] According to some preferred embodiments of the present invention, an ultrasonic sensor is provided on the top of the sedimentation box 3. The ultrasonic sensor is configured to emit ultrasonic waves vertically toward the bottom of the sedimentation box 3, and to measure the distance from the surface of the seeds in the sedimentation box 3 to the ultrasonic sensor according to the time difference of the ultrasonic reflection wave, thereby obtaining the stacking height of the seeds in the sedimentation box 3.

[0049] According to the size parameters of the sedimentation box 3 and the general stacking characteristics of the chinensis seeds, the measurement range, measurement accuracy and other related parameters of the ultrasonic sensor are set in the control system. For example, the upper limit of the measurement range is determined according to the height of the sedimentation box 3; according to factors such as surface irregularities that may occur when the chinensis seeds are stacked, the measurement accuracy is reasonably set to ensure that the changes in the seed stacking height can be more accurately reflected.

[0050] When the harvesting of the sedge seeds begins, the ultrasonic sensor automatically emits ultrasonic pulse signals at a set time interval (e.g., once every 5 seconds). These ultrasonic pulse signals propagate into the sedimentation box 3 at a certain frequency and intensity, and are reflected when encountering the surface of the sedge seeds.

[0051] The receiving unit of the sensor receives the reflected ultrasonic signal and calculates the distance from the sensor probe to the seed accumulation surface based on the time difference between the transmitted signal and the received signal.

[0052] The ultrasonic sensor transmits the calculated distance data to the control system of the device in real time. After receiving the data, the control system processes the data according to a pre-set program. For example, the distance data is converted into relative stacking height data based on the height of the sedimentation box 3, that is, the total height of the sedimentation box 3 minus the measured distance value, so as to obtain the actual stacking height value of the sheep grass seeds in the sedimentation box 3.

[0053] The control system further analyzes and processes the obtained data of the accumulation height of the sheep fescue seeds. It compares the current accumulation height data with a preset threshold. For example, a low threshold is set. When the accumulation height is lower than the threshold, it indicates that the number of seeds in the sediment box 3 is small, and the seed harvesting operation can continue; at the same time, a high threshold is set. When the accumulation height reaches or exceeds the high threshold, it indicates that the sediment box 3 is about to be full or has been full, and it is necessary to stop the seed harvesting operation in time or take corresponding treatment measures, such as issuing an alarm to remind the operator to perform seed cleaning or transfer operations.

[0054] If the stacking height data is within the normal range (not exceeding the high threshold and above the low threshold), the control system continues to maintain the normal operation of the equipment, and the ultrasonic sensor continues to measure and transmit data at the set time interval to monitor the changes in the seed stacking height in real time.

[0055] If the stacking height data exceeds the high threshold, the control system will immediately trigger the corresponding alarm device, such as an audible and visual alarm to send an alarm signal. At the same time, it can send an alarm message to the remote monitoring terminal connected to the equipment (such as a mobile phone APP or computer monitoring software) so that the operator can know and take action in time.

[0056] In addition, the control system can also adjust the operating status of the equipment according to actual needs, such as reducing the travel speed of the traction equipment, thereby reducing the number of seeds collected by the collector 2 and avoiding problems such as equipment failure or seed overflow caused by excessive seed accumulation.

[0057] When using the sheepgrass seed harvesting device proposed in the embodiment of the present invention, first connect the connecting frame 4 on the frame 1 of the sheepgrass seed harvesting device to the traction device to ensure that the connection is firm and stable. Check whether the sedimentation box 3 is installed on the frame 1 and the position is correct, and confirm that there is no abnormality in the layout of the collector 2 at the harvesting port 31, and that all components are tightly connected and can operate normally.

[0058] The harvesting device connected with the traction device is towed to the Leymus chinensis grassland, so that the frame 1 is located on the Leymus chinensis grassland, and is ready to start the operation. The power device is started to provide power drive for the rotation of the collector 2.

[0059] When the traction device starts and drives the frame 1 to move slowly on the sheep grass grassland, the collector 2 located at the harvesting port 31 starts to rotate at high speed under the power drive. The collector 2 has a unique structural design, and a specific channel 9 is formed between the arc plate 8 on the top and the collector 2 body. The channel 9 starts from the harvesting port 31 and extends to the inside of the sedimentation box 3.

[0060] When the rotating collector 2 contacts the sheep grass plant, its rotational motion moves from bottom to top along the stem of the sheep grass, impacting the grass spike with appropriate force and angle. At the moment of impact, due to the special airflow environment in the channel 9, a negative pressure zone is generated to form adsorption on the grass spike. The formation principle of the negative pressure zone is that the rotation of the collector 2 drives the air in the channel 9 to flow rapidly, so that the air pressure in the channel 9 is lower than the external air pressure, thereby generating adsorption force on the grass spike.

[0061] Under the dual effects of impact and negative pressure adsorption, the sheepgrass seeds are quickly separated from the stems. The separated seeds are adsorbed by negative pressure in the channel 9 and move along the channel 9 to the inside of the deposition box 3 with the airflow. In this process, the rotation speed, impact force, negative pressure adsorption force and other factors of the collector 2 cooperate with each other to ensure that the sheepgrass seeds can be collected efficiently and the situation of seeds being left on the grass is minimized. At the same time, since the equipment continues to move with the traction equipment, the collector 2 will continuously collect seeds from the sheepgrass on the route, ensuring the continuity and efficiency of large-scale sheepgrass seed harvesting.

[0062] The leopard grass seeds separated from the stems are transported to the inside of the deposition box 3 through the channel 9, and the deposition box 3 will continuously store the leopard grass seeds harvested by the collector 2, thereby completing the harvesting operation of the leopard grass seeds. During the harvesting process, the storage status of the seeds in the deposition box 3 and the operating status of each component of the equipment can be checked in time to ensure the continuous and effective harvesting operation.

[0063] The present invention is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present invention may also have other implementation modes. For those skilled in the art, any technical solutions formed by any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A Leymus chinensis seed harvesting device, characterized in that: The chinensis seed harvesting device is used to harvest chinensis seeds before harvesting chinensis, and comprises a frame, a collector and a deposition box; The frame is provided with a connecting frame for connecting the traction device, and the frame is configured to carry the sedimentation box and walk on the sheep grass grassland with the movement of the traction device; The deposition box is installed on the frame and is used to store the sheepgrass seeds harvested by the collector. The front side of the deposition box in the traveling direction is provided with a harvesting port; The collector is arranged at the harvesting port, and an arc plate is arranged on the top of the collector. A channel is arranged between the arc plate and the collector, and the channel extends from the harvesting port to the inside of the sedimentation box. The collector is configured to rotate under power drive, and impact the grass spikes from bottom to top along the stems of the sheep grass, so that the sheep grass seeds are separated from the stems, and a negative pressure zone is generated in the channel to adsorb the grass spikes.

2. The sheepgrass seed harvesting device according to claim 1, characterized in that: A baffle is provided in the sedimentation box, and the baffle is located at the bottom of the sedimentation box and close to the harvesting port. The baffle is constructed to block the channel from bottom to top along the height direction of the sedimentation box, and a feed port for sheep grass seeds to enter the sedimentation box is left near the arc plate.

3. The Leymus chinensis seed harvesting device according to claim 1, characterized in that: The side wall of the sedimentation box located on the harvesting port side is arranged to be tilted downward, and a shutter is arranged on the side wall. The shutter is located above the arc plate, and the shutter is constructed to discharge impurities mixed in the sheepgrass seeds from the inside of the sedimentation box to the outside.

4. The Leymus chinensis seed harvesting device according to claim 1, characterized in that: The collector comprises a brush roller, the end of which is mounted on a frame via a bearing seat, and bristle bundles are evenly distributed on the side wall of the brush roller.

5. The Leymus chinensis seed harvesting device according to claim 1, characterized in that: The frame is provided with a transmission component, which is installed on the top of the frame and is configured to transmit the power of the traction device to the collector.

6. The Leymus chinensis seed harvesting device according to claim 1, characterized in that: A pair of running wheels are arranged at the bottom of the frame, and the running wheels are installed on the frame through a bearing seat.

7. The Leymus chinensis seed harvesting device according to claim 1, characterized in that: The sedimentation box is provided with a discharge door, and the discharge door is located at a side away from the harvesting port.

8. The Leymus chinensis seed harvesting device according to claim 1, characterized in that: An ultrasonic sensor is arranged on the top of the sedimentation box, and is constructed to emit ultrasonic waves vertically to the bottom of the sedimentation box, and calculate the distance from the seed surface in the sedimentation box to the ultrasonic sensor according to the time difference of the ultrasonic reflection wave, so as to obtain the stacking height of the seeds in the sedimentation box.

9. A harvesting method, characterized in that: The method of using the Leymus chinensis seed harvesting device according to any one of claims 1 to 8 to harvest the Leymus chinensis seeds before harvesting the Leymus chinensis comprises: Start the traction equipment and pull the frame onto the sheepgrass grassland, making sure the harvesting port is located in the front side of the travel direction; The collector is driven by power and rotates at the harvesting port, impacting the grass spike from bottom to top along the stem of the sheep grass, so that the sheep grass seeds are separated from the stem, and drive the sheep grass seeds into the channel between the collector and the arc plate. The rotating motion of the collector generates airflow in the channel, and generates a negative pressure area in the channel to adsorb the grass spike. The sheep grass seeds enter the deposition box along with the airflow in the channel. As the traction equipment moves forward, the threshed sheepgrass stalks gradually separate from the channel, keeping the sheepgrass stalks in an upright state.

10. The harvesting method according to claim 9, characterized in that An ultrasonic sensor is installed on the top of the sedimentation box to ensure that the probe of the ultrasonic sensor is vertically downward to detect the accumulation of the sheep grass seeds in the sedimentation box; When the sheep fescue seed harvesting operation begins, the ultrasonic sensor automatically transmits ultrasonic pulse signals at the set time interval. The ultrasonic pulse signals propagate into the sedimentation box at a predetermined frequency and intensity, and are reflected when they encounter the sheep fescue seed accumulation surface. The receiving unit of the ultrasonic sensor receives the reflected ultrasonic signal and calculates the distance from the sensor probe to the seed accumulation surface based on the time difference between the transmitted signal and the received signal.

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