A self-propelled grass seed collection device for use on slopes

Abstract

The utility model relates to agricultural machinery technical field especially relates to a kind of slope self-propelled grass seed collecting device, including track self-propelled chassis, the track self-propelled chassis top is provided with collecting box, the collecting box top cover is equipped with protective cover, the collecting box front side is connected with collecting pipe, and one end of the collecting pipe is communicated to the inside of the collecting box.This device is separated by integrating front end shovel formula separation hopper and reciprocating shearing threshing mechanism consisting of sliding frame, separation plate, fixed frame, eccentric cam and servo motor, high-frequency shearing action can be applied to wild old herons grass and other weeds during the equipment advancing, effectively destroy fruit order structure, make the grass seed attached to stem leaf fully scrape off, significantly improve grass seed harvesting rate, curb malignant weed secondary diffusion from the source, and utilize negative pressure airflow conveying system and filter screen screening device consisting of collecting box, collecting pipe, filter screen and electric air pump, realize the efficient separation and automatic collection of grass seed and impurities.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a self-propelled grass seed collection device for slopes. Background Technology

[0002] In orchard ecosystems on sloping farmland, weeds are a significant biological stressor affecting the healthy growth of fruit trees. Weeds compete with fruit trees for sunlight, water, nutrients, and space, which can severely lead to stunted growth, reduced yield, and even quality deterioration. Geranium, a common annual broadleaf weed, is prevalent in orchards during spring. Its dense root system intertwines with that of fruit trees, intensifying competition for soil moisture and mineral nutrients. Furthermore, after maturing, the plant produces numerous seeds that naturally fall to the ground, creating soil erosion. Persistent seed banks can create hidden dangers for weed outbreaks the following year. Therefore, in orchard management, timely and effective control measures must be taken against noxious weeds such as geraniums. The conventional approach is to remove them mechanically or manually during their reproductive growth period. However, if weeding is carried out only after the seeds are fully mature, the seeds are easily scattered on the ground during the cutting process, which leads to secondary dispersal and germination, creating a vicious cycle of the more we remove, the more weeds grow. Therefore, harvesting mature weed seeds before cutting is a key step in breaking the breeding chain and achieving source control.

[0003] Patent CN212116107U discloses a seed collection device for Tribulus terrestris. The device mainly includes a collection box, a protective frame, a rotating shaft, a rotating roller, and a drive system. The rotating roller is covered with a rubber and plastic adhesive layer and is driven to rotate by a motor via a belt. It uses the adhesive surface to adsorb seeds scattered on the ground. The collection box can be adjusted in angle through a hanging plate and movable components, and is equipped with a lifting mechanism to adapt to different terrains. The protective frame is equipped with a vent for easy cleaning of residues. The overall structure is designed to achieve efficient recycling of fallen seeds. However, it still has shortcomings in practical application. The device can only collect free seeds that have fallen to the ground and cannot process mature or nearly mature seeds that are still attached to the stems and leaves of the plant. Therefore, it cannot effectively peel off seeds that are firmly attached or wrapped in the inflorescence, thus limiting its operational capacity.

[0004] Therefore, there is an urgent need to provide a self-propelled grass seed collection device for slopes that combines rapid and efficient threshing and separation collection functions. Utility Model Content

[0005] In order to overcome the shortcomings of existing grass seed collection devices that cannot effectively separate mature grass seeds attached to plants and have low collection efficiency, this utility model provides a self-propelled grass seed collection device for slopes that combines fast and efficient threshing and separation collection functions.

[0006] To address the aforementioned problems, this utility model adopts the following technical solution: a self-propelled grass seed collection device for slopes, comprising a tracked self-propelled chassis, a collection box mounted on top of the tracked self-propelled chassis, a protective cover covering the top of the collection box, a collection pipe connected to the front of the collection box, one end of the collection pipe connecting to the interior of the collection box, and the other end extending downwards and connecting to a separating hopper, forming an airflow and material conveying channel, the separating hopper being fixedly installed below the front end of the tracked self-propelled chassis, the separating hopper having an overall shovel-shaped structure with an open front end, and several spaced-apart shovel teeth at the front end, while a weed discharge port is provided on the lower part of the rear side wall of the separating hopper. A filter screen is slidably mounted on the upper part of the separation hopper near the collection pipe. An electric air pump is installed at the connection between the collection pipe and the separation hopper. A guide groove is opened on the rear side wall inside the separation hopper. A sliding frame is slidably mounted on the guide groove. A separation plate is rigidly connected to the lower part of the sliding frame. The separation plate also has a front end shovel tooth structure. A fixing frame is fixedly mounted on the rear side wall outside the separation hopper. A servo motor is mounted on the fixing frame. The output shaft of the servo motor is connected to an eccentric cam via a key. A straight guide groove matching the eccentric cam is opened on the sliding frame. The eccentric pin of the eccentric cam is embedded in the straight guide groove to form a sliding pair.

[0007] Furthermore, symmetrically distributed mounting blocks are fixed to the front side of the filter screen, and a locking slot is provided on the top of the mounting block. A guide seat is fixed to the top of the front end of the tracked self-propelled chassis. Symmetrically distributed sliding rods are slidably arranged on the guide seat. A locking block is fixed to the bottom end of the sliding rod. An elastic element is sleeved on the sliding rod, and the two ends of the elastic element are fixedly connected to the guide seat and the locking block, respectively.

[0008] Furthermore, both ends of the locking block are designed as inclined surfaces, serving as the entry inclined surface and the exit inclined surface, respectively.

[0009] Furthermore, a transparent observation panel is embedded in the rear side of the collection box.

[0010] Furthermore, strong magnets are provided on both sides of the protective cover and both sides of the collection box.

[0011] Furthermore, a protective shell is provided on the outer rear side wall of the separation bucket, and the protective shell covers the outside of the eccentric cam and the servo motor.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. The device integrates a front-end shovel-type separating bucket and a reciprocating shearing and threshing mechanism composed of a sliding frame, separating plate, fixed frame, eccentric cam and servo motor. During the movement of the equipment, it can apply high-frequency shearing action to weeds such as geranium, effectively destroying the fruiting structure and scraping off the grass seeds attached to the stems and leaves, significantly improving the grass seed harvesting rate and curbing the secondary spread of noxious weeds from the source. Furthermore, it utilizes a negative pressure airflow conveying system composed of a collection box, collection pipe, filter screen and electric air pump and a filter screen screening device to achieve efficient separation and automatic collection of grass seeds and impurities.

[0013] 2. The filter screen of this device is detachably connected through the mounting block and the elastic snap-locking mechanism. Utilizing the inclined guide and compression spring reset principle, it achieves a tool-free disassembly and assembly mode of automatic locking when pushed in and manual unlocking when pulled out. This facilitates daily cleaning of blockages or replacement of filter screens with different pore sizes to adapt to various grass seed types, thereby improving the modularity and multi-scenario applicability of the equipment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the tracked self-propelled chassis, collection box, and protective cover of this utility model.

[0016] Figure 3 This is a three-dimensional cross-sectional view of the components of this utility model, including the separation plate, servo motor, and eccentric cam.

[0017] Figure 4 This is a three-dimensional sectional view of the mounting block, guide seat, and slide rod of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the transparent observation plate, powerful magnet, and protective shell of this utility model.

[0019] Reference numerals: 1: Tracked self-propelled chassis, 2: Collection box, 3: Protective cover, 4: Collection pipe, 5: Separation bucket, 6: Filter screen, 7: Electric air pump, 8: Sliding frame, 9: Separation plate, 10: Fixing frame, 11: Servo motor, 12: Eccentric cam, 13: Mounting block, 14: Guide seat, 15: Slide rod, 16: Locking block, 17: Elastic element, 18: Transparent observation plate, 19: Strong magnet, 20: Protective shell. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "setting," "installing," "connecting," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0021] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5A self-propelled grass seed collection device for slopes includes a tracked self-propelled chassis 1. A collection box 2 for centralized storage of grass seeds is mounted on the top of the tracked self-propelled chassis 1. A protective cover 3 is installed on the top of the collection box 2. A mesh-designed ventilation structure is located at the center of the protective cover 3 to achieve both efficient exhaust and particulate matter blocking. A collection pipe 4 is connected to the front of the collection box 2. One end of the collection pipe 4 connects to the interior of the collection box 2, and the other end extends downwards and connects to a separation hopper 5, forming an airflow and material conveying channel. The separation hopper 5 is fixedly installed below the front end of the tracked self-propelled chassis 1. The separation hopper 5 has an overall shovel-shaped structure with an open front end, and the front end has spaced-apart... Several shovel teeth are used to cut into the ground vegetation layer to initially remove and introduce attached grass seeds. A weed discharge port is located on the lower rear side wall of the separating hopper 5 to discharge large plant debris. A filter screen 6, which can be pulled forward for cleaning or replacement, is slidably installed in the upper part of the separating hopper 5 near the collection pipe 4. The mesh size of the filter screen 6 is slightly larger than the target grass seed size, ensuring the grass seeds pass through smoothly while effectively intercepting larger stem and leaf fragments and other impurities. An electric air pump 7 is installed at the connection between the collection pipe 4 and the separating hopper 5, serving as the power source for the entire suction system and providing stable negative pressure suction. Two guide grooves are symmetrically formed on the rear side wall inside the separating hopper 5, and sliding devices are installed on the guide grooves. A horizontally reciprocating sliding frame 8 is provided. A separating plate 9 is rigidly connected to the lower part of the sliding frame 8. The separating plate 9 also has a front-end shovel tooth structure. When the separating plate 9 moves, it is arranged alternately with the shovel teeth of the separating hopper 5. Together, they form a shearing and threshing mechanism. A fixing frame 10 is fixedly installed on the outer rear side wall of the separating hopper 5. A servo motor 11 is mounted on the fixing frame 10. The output shaft of the servo motor 11 is connected to an eccentric cam 12 via a key. A guide groove matching the eccentric cam 12 is provided on the sliding frame 8. The eccentric pin of the eccentric cam 12 is embedded in the guide groove to form a sliding pair. Through the sliding pair structure, the continuous rotational motion of the servo motor 11 is converted into sliding motion. The moving frame 8 moves in a periodic reciprocating linear motion along the guide groove, thereby driving the separating plate 9 to achieve a high-frequency reciprocating shearing action. A transparent observation plate 18 is embedded in the rear side of the collection box 2 to facilitate real-time observation of the accumulation of grass seeds inside. Powerful magnets 19 are provided on both sides of the protective cover 3 and the left and right sides of the collection box 2. The powerful magnets 19 on the protective cover 3 and the powerful magnets 19 on the collection box 2 have opposite polarities, forming a magnetic locking structure to improve sealing and ease of opening and closing. A protective shell 20 is provided on the outer rear side wall of the separating hopper 5. The protective shell 20 covers the eccentric cam 12 and the servo motor 11 to prevent dust and plants from entering, thereby ensuring the safe operation of the transmission components.

[0022] When using this device, the operator starts the power system of the tracked self-propelled chassis 1. The equipment relies on the track drive to travel stably in the sloping farmland orchard. Due to the good ground pressure and terrain adaptability of the track, it can operate smoothly in environments with a slope of up to 30°, avoiding the risk of tipping over. When the equipment moves forward, the shovel teeth at the front end of the separating bucket 5 cut into the stem and leaf position, and can also shovel off some grass seeds and put them into the cavity of the separating bucket 5. At this time, the grass seeds and mixed weeds, stem and leaf fragments are temporarily stored in the internal space of the separating bucket 5. Simultaneously, the servo motor 11 is started, and its output shaft drives the eccentric cam 12 to rotate at a constant speed. Since a sliding pair is formed between the eccentric pin shaft and the guide groove on the sliding frame 8, as the eccentric wheel rotates, it pushes the sliding frame 8 to make reciprocating linear motion along the guide groove. This reciprocating motion drives the separating plate 9 to perform a high-frequency shearing action relative to the body of the separating bucket 5, so that the grass seeds on the grass are scraped off due to mechanical impact. The process effectively separates grass seeds from stems and leaves, reducing omissions. During the shearing process, the electric air pump 7 is activated simultaneously to generate negative pressure airflow. This negative pressure is transmitted to the inside of the separation hopper 5 through the collection pipe 4, forming a suction channel from the inside out. Due to the light weight and small particle size of grass seeds, they pass through the filter screen 6 and enter the collection pipe 4 under the action of airflow. Larger weeds, leaves, and other debris are intercepted by the filter screen 6 and accumulate at the rear of the separation hopper 5. As the equipment moves forward, they are continuously pushed backward and finally automatically discharged from the weed outlet to the field, achieving the goal of clearing weeds and returning them to the field. The grass seeds sucked in enter the collection box 2 with the airflow. Due to the expansion of the pipe cross-section and the reduction of the flow velocity, they settle to the bottom storage area, achieving effective collection. Meanwhile, the air continues to rise and is discharged from the machine through the ventilation structure on the protective cover 3. During the operation, the operator can check the grass seed accumulation level in real time through the transparent observation plate 18 on the collection box 2 and stop the machine to clean it when necessary.

[0023] Example 2: Based on Example 1, please refer to... Figure 4 The filter screen 6 has symmetrically distributed mounting blocks 13 fixed to its front side. The mounting blocks 13 have locking slots on their tops. The front end of the self-propelled tracked chassis 1 is fixed to a guide seat 14. The guide seat 14 has symmetrically distributed sliding rods 15 slidably mounted on it. The bottom of the sliding rods 15 is fixed to a locking block 16. The front and rear ends of the locking block 16 are designed as inclined surfaces, serving as an inlet inclined surface and an exit inclined surface, respectively. These surfaces are used to generate the guiding and unlocking forces required during the installation and removal of the filter screen 6. An elastic element 17 is sleeved on the sliding rods 15. The upper and lower ends of the elastic element 17 are fixedly connected to the guide seat 14 and the locking block 16, respectively. The elastic element 17 provides a downward reset force for the locking block 16, allowing the locking block 16 to stably engage in the locking slots, thereby achieving automatic locking of the filter screen 6.

[0024] When installing filter screen 6, the operator pushes it horizontally into the installation position from the front of the separation hopper 5. When filter screen 6 moves the installation block 13 to its limit position, the rear side of the installation block 13 first contacts the guide slope at the front end of the locking block 16. As the equipment continues to move, a normal pressure is generated between the slopes. This pressure is decomposed into a vertically upward component along the slope direction, forcing the locking block 16 to slide upward against the elastic force of the elastic element 17, thereby temporarily disengaging the locking block 16 from the locking path. When filter screen 6 is fully in place, the locking slot on the installation block 13 is aligned with the position of the locking block 16. At this time, under the action of the elastic element 17 restoring its deformation, the slide rod 15 drives the locking block 16 to quickly return to its original position downward. The locking block 16 automatically embeds into the locking slot under the elastic force, completing the mechanical self-locking. During normal operation of the equipment, filter screen 6 is subjected to multiple loads from airflow backflushing, material impact, and vibration. Because the locking block 16 and the locking slot are in surface contact and are continuously pressed by elastic force, they can effectively resist lateral loosening and longitudinal pull-out force, ensuring the stability of the filter screen 6 under complex working conditions. When the filter screen 6 needs to be cleaned or replaced, the operator applies a forward pulling force to the filter screen 6. At this time, the mounting block 13 moves forward, and the rear side wall of its locking slot contacts the exit ramp of the locking block 16. The interaction of the ramps generates a vertical upward component force, forcing the locking block 16 to overcome the elastic force of the elastic element 17 and slide upward until it is completely removed from the locking slot. Once disengaged, the filter screen 6 can be freely pulled out, achieving tool-free and damage-free quick disassembly. The entire locking mechanism operates smoothly and supports high-frequency disassembly and assembly without affecting its service life. After maintenance, the filter screen 6 can be reinserted in the same way, and the system automatically completes the locking without additional adjustment, significantly improving the maintainability and continuity of the equipment.

[0025] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. A self-propelled grass seed collection device for slopes, comprising a tracked self-propelled chassis (1), a collection box (2) is provided on the top of the tracked self-propelled chassis (1), a protective cover (3) is provided on the top of the collection box (2), a collection pipe (4) is connected to the front side of the collection box (2), one end of the collection pipe (4) is connected to the inside of the collection box (2), and the other end extends downward and is connected to a separating bucket (5) to form an airflow and material conveying channel, the separating bucket (5) is fixedly installed below the front end of the tracked self-propelled chassis (1), the separating bucket (5) is generally in the shape of a shovel bucket with an open front end, and the front end is provided with several shovel teeth arranged at intervals, and a weed discharge port is opened on the lower part of the rear side wall of the separating bucket (5), characterized in that: A filter screen (6) is slidably mounted on the upper part of the separation bucket (5) near the collection pipe (4). An electric air pump (7) is installed at the connection between the collection pipe (4) and the separation bucket (5). A guide groove is provided on the rear side wall inside the separation bucket (5). A sliding frame (8) is slidably mounted on the guide groove. A separation plate (9) is rigidly connected to the lower part of the sliding frame (8). The separation plate (9) also has a front end shovel tooth structure. A fixing frame (10) is fixedly mounted on the rear side wall outside the separation bucket (5). A servo motor (11) is mounted on the fixing frame (10). The output shaft of the servo motor (11) is connected to an eccentric cam (12) by a key. A straight guide groove matching the eccentric cam (12) is provided on the sliding frame (8). The eccentric pin of the eccentric cam (12) is embedded in the straight guide groove to form a sliding pair.

2. A self-propelled grass seed collection device for slopes according to claim 1, characterized in that: The filter screen (6) is fixedly connected to a symmetrically distributed mounting block (13) on the front side. The mounting block (13) has a locking slot on the top. The front end of the tracked self-propelled chassis (1) is fixedly connected to a guide seat (14). The guide seat (14) is slidably provided with symmetrically distributed slide rods (15). The bottom end of the slide rod (15) is fixedly connected to a locking block (16). An elastic element (17) is sleeved on the slide rod (15). The two ends of the elastic element (17) are fixedly connected to the guide seat (14) and the locking block (16) respectively.

3. A self-propelled grass seed collection device for slopes according to claim 2, characterized in that: Both ends of the locking block (16) are designed as inclined surfaces, serving as the inlet inclined surface and the exit inclined surface, respectively.

4. A self-propelled grass seed collection device for slopes according to claim 3, characterized in that: A transparent observation panel (18) is embedded in the rear side of the collection box (2).

5. A self-propelled grass seed collection device for slopes according to claim 4, characterized in that: Strong magnets (19) are provided on both sides of the protective cover (3) and both sides of the collection box (2).

6. A self-propelled grass seed collection device for slopes according to claim 5, characterized in that: The outer rear wall of the separation bucket (5) is provided with a protective shell (20), which covers the outside of the eccentric cam (12) and the servo motor (11).

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