Modularized astragalus membranaceus harvester with variable-spacing screen

Abstract

The invention relates to the field of agricultural machinery, and discloses a modular radix astragali harvester with a variable-spacing screen, the device comprises a main body frame, the outer wall of the main body frame is provided with a vibration mechanism, the two sides of the outer wall of the vibration mechanism are both provided with baffles, the inner walls of the baffles are fixedly connected with a separation net, and the separation net is fixedly connected with the separation mechanism. The outer wall of the vibration mechanism is fixedly connected with a connecting block, the outer wall of the connecting block is fixedly connected with a front shovel, and the outer wall of the main body frame is fixedly connected with a connecting frame. The vibration mechanism comprises a first motor, the outer wall of the first motor is fixedly connected to the outer wall of the main body frame, and the output end of the first motor is connected with a first belt wheel. Two vibration modes are provided, one mode can drive a baffle, a separation net and a front shovel to vibrate, astragalus membranaceus and soil adhered to the astragalus membranaceus can be separated while the driving resistance is reduced and the soil crushing efficiency is optimized, and the other mode can adjust the vibration amplitude by rotating a rotating handle, so that the adaptability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a modular astragalus harvester with a variable-spacing screen. Background Art

[0002] Astragalus membranaceus is an important Chinese medicinal herb, primarily used to enhance immunity and replenish qi and nourish the body. It has excellent economic value and broad application prospects. However, the traditional astragalus harvesting process is characterized by low mechanization, low efficiency, and root damage. To improve harvesting efficiency and protect the quality of astragalus membranaceus, the research and development of modular astragalus harvesters is particularly important. The modular design allows the harvester to be flexibly configured to suit different operating environments and task requirements, thereby optimizing operational results. Furthermore, the variable-pitch screen design allows the height between screens to be adjusted according to different harvesting conditions, enhancing adaptability to astragalus membranaceus, improving separation efficiency, and ensuring harvest quality.

[0003] Current astragalus harvesters rely on rotary cutters to cut and dig up the astragalus. Furthermore, during operation, the front shovel of the harvester comes into excessive contact with the soil, resulting in high driving resistance and a tendency to get stuck. Summary of the Invention

[0004] The present invention provides a modular astragalus harvester with a variable-pitch screen, which solves the problem that during the operation of the harvester, the front shovel has excessive contact with the soil, resulting in large driving resistance and easy jamming.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a modular astragalus harvester with a variable-spacing screen, comprising a main frame, the outer wall of the main frame is provided with a vibration mechanism, baffles are provided on both sides of the outer wall of the vibration mechanism, the inner wall of the baffle is fixedly connected to a separation net, the outer wall of the vibration mechanism is fixedly connected to a connecting block, the outer wall of the connecting block is fixedly connected to a front shovel, and the outer wall of the main frame is fixedly connected to a connecting frame.

[0006] Preferably, the vibration mechanism includes motor 1, the outer wall of motor 1 is fixedly connected to the outer wall of the main frame, the output end of motor 1 is provided with pulley 1, the outer wall of pulley 1 is provided with belt 1, the outer wall of belt 1 is provided with pulley 2, the inner wall of pulley 2 is fixedly connected to a cross column, the outer wall of the cross column is fixedly connected to a centrifugal column, the outer wall of the centrifugal column is rotatably connected to connecting rod 1, the inside of connecting rod 1 is rotatably connected to connecting rod 2, the outer wall of connecting rod 2 is rotatably connected to the inside of the baffle, the outer wall of the vibration mechanism is rotatably connected to connecting rod 3, and the outer wall of connecting rod 3 is rotatably connected to the inside of the main frame.

[0007] Preferably, the vibration mechanism includes a motor 2, the outer wall of the motor 2 is fixedly connected to the outer wall of the main frame, the output end of the motor 2 is provided with a pulley 3, the outer wall of the pulley 3 is provided with a belt 2, the outer wall of the belt 2 is provided with a pulley 4, the outer wall of the pulley 4 is rotatably connected to the inside of the main frame, the outer wall of the pulley 4 is fixedly connected to a turntable, the outer wall of the turntable is fixedly connected to a multi-directional bracket, the outer wall of the multi-directional bracket is fixedly connected to a threaded block 1, the internal thread of the threaded block 1 is connected to a threaded column 1, the outer wall of the threaded column 1 is rotatably connected to a connecting shell, the inner wall of the connecting shell is slidably connected to the outer wall of the threaded block 1, the outer wall of the threaded column 1 is fixedly connected to a turning handle, the outer wall of the turning handle is rotatably connected to the inside of the connecting shell, the outer wall of the connecting shell is fixedly connected to a top plate, the internal rotation of the top plate is connected to a limiting rod 1, the internal rotation of the top plate is connected to a limiting rod 2, the outer wall of the limiting rod 2 is rotatably connected to the inside of the main frame, and the internal rotation of the baffle is connected to a limiting rod 3.

[0008] Preferably, a screening mechanism is fixedly connected to the outer wall of the baffle, and the screening mechanism is located below the separation net.

[0009] Preferably, the screening mechanism includes a screening box, the outer wall of the screening box is fixedly connected to the outer wall of the baffle, the outer wall of the screening box is fixedly connected to the bottom bracket, the interior of the bottom bracket is rotatably connected to the positive and negative screw rods, the outer walls of the positive and negative screw rods are threadedly connected to the threaded block 2, the outer walls of the positive and negative screw rods are fixedly connected to the handheld column 1, the upper surface of the threaded block 2 is fixedly connected to the fixing bracket, the outer wall of the fixing bracket is rotatably connected to the positioning rod, the outer wall of the positioning rod is rotatably connected to the connecting plate, the outer wall of the connecting plate is fixedly connected to the screen frame, and the outer wall of the screen frame is slidably connected to the interior of the screening box.

[0010] Preferably, the screening mechanism includes a protective shell, the outer wall of the protective shell is fixedly connected to the outer wall of the screening box, the inner wall of the protective shell is fixedly connected to an L-shaped plate, the inside of the L-shaped plate is rotatably connected to a through column, both sides of the outer wall of the through column are fixedly connected to bevel gear 1, the tooth end of the bevel gear 1 is meshedly connected to bevel gear 2, the outer wall of the bevel gear 2 is fixedly connected to threaded rod 3, the outer wall of the threaded rod 3 is threadedly connected to a threaded plate, the outer wall of the threaded rod 3 is rotatably connected to a limiting plate, the outer wall of the threaded plate is fixedly connected to both sides of the outer wall of the screen frame, the outer wall of the through column is fixedly connected to hand-held column 2, and the outer wall of hand-held column 2 is rotatably connected to the outer wall of the protective shell.

[0011] Preferably, the outer wall of the main frame is fixedly connected to a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected to a connecting bracket, the outer wall of the connecting bracket is slidably connected to the inside of the main frame, and the outer wall of the connecting bracket is fixedly connected to a traveling wheel.

[0012] Preferably, the outer wall of the limiting rod 1 is rotatably connected to the inside of the main frame, the outer wall of the limiting rod 2 is rotatably connected to the inside of the baffle, and the outer wall of the limiting rod 3 is rotatably connected to the inside of the main frame.

[0013] Preferably, the outer wall of the threaded rod 3 is rotatably connected to the inside of the L-shaped plate, and the outer wall of the limiting plate is fixedly connected to the outer wall of the screening box.

[0014] Preferably, the outer wall of the connecting plate is slidably connected to the inner wall of the screening box, and the lower surface of the second threaded block is slidably connected to the inner wall of the bottom bracket.

[0015] Working principle: When the device needs to be used, it is first connected to the traction device through the connecting frame. When working, the vibration mechanism synchronously drives the baffle and the separation net to vibrate, and the connection block and the front shovel to vibrate synchronously. The vibration mechanism causes the front shovel to loosen the soil. After the front shovel drives the soil and astragalus out synchronously, it will move to the top of the separation net, so that the separation net separates the astragalus from the soil, and the vibration generated by the vibration mechanism continuously drives the astragalus outward through the separation net. At the same time, the astragalus occupying the soil is separated from the soil, so as to ensure the accuracy of the subsequent screening work; There are two forms of vibration mechanisms. The first one starts the motor 1 to drive the pulley 1 at the output end to rotate, and then the pulley 2 is synchronously driven by the pulley 1, and then the horizontal column is synchronously driven to rotate. Since the centrifugal column is set eccentrically on the horizontal column, the connecting rod 1 is synchronously pulled to move, so that the connecting rod 1 rotates around the place where the connecting rod 1 contacts the main frame as the central axis, and then the connecting rod 2 is pulled to rotate around the connection part between the connecting rod 2 and the main frame as the central axis, thereby pulling the baffle to make a small circular motion, and then driving the separation net, connecting block, and front shovel to move. The second one starts the motor 2 to drive the pulley 3 at the output end to rotate, so that the pulley 4 rotates synchronously, and then drives the turntable to rotate inside the main frame. Due to the chain ball connection structure in the multi-directional bracket, the threaded block 1 can be pushed to move, thereby driving the connecting shell to move. The movement of the connecting shell drives the top plate to move, thereby driving the limit rod 1, the limit rod 2, and the limit rod 3 to move, thereby causing the position of the baffle to be driven to make a small circular motion. When the amplitude of the vibration mechanism needs to be adjusted, the rotating handle synchronously drives the threaded column 1 to rotate, thereby causing the threaded block 1 to move inside the connecting shell. When it moves to the middle position, the angle of the chain ball structure in the multi-directional bracket is small, and the amplitude is small at this time. When it moves to the two ends of the connecting shell, the amplitude is maximum. According to different soils or different needs of users, the amplitude of the baffle is adjusted to improve the adaptability of the device. According to the growth level of Astragalus, there are two ways to adjust the screening of Astragalus. The first way is to rotate the handheld column 1 to drive the forward and reverse screws to rotate inside the bottom bracket, thereby driving the threaded block 2 to rotate, so that the threaded blocks 2 on both sides can move toward each other in the center, thereby driving the fixed bracket to move. The movement of the fixed bracket drives the positioning rod to move, lifting the connecting plate upward, thereby driving the screen frame to move inside the screening box, and the height between it and the screen frame below is increased. Through the connection between the screening box and the baffle, the Astragalus falling on the screen frame is vibrated and screened. The mesh of the upper screen frame is larger, and the mesh of the lower one is smaller, so that the Astragalus can be screened according to the rhizome. A drawer-type structure is set below to facilitate the user to directly take out the separated Astragalus. The second way is to rotate the handheld column 2 to drive the bevel gear 1 to rotate inside the L-shaped plate, thereby synchronously driving the bevel gear 1 on both sides to rotate, thereby driving the threaded rod 3 to rotate. The rotation of the threaded rod 3 synchronously drives the threaded plate to move, thereby driving the screen frame to move. The protective shell protects the internal components to prevent dust from affecting the operation of the components during harvesting.

[0016] The present invention provides a modular astragalus harvester with a variable-pitch screen. It has the following beneficial effects: 1. The present invention provides two vibration modes. One mode can drive the baffle, separation net and front shovel to vibrate, thereby reducing driving resistance and optimizing soil crushing efficiency. At the same time, it can also separate the astragalus from the soil adhering to the astragalus. The other mode adjusts the vibration amplitude by rotating the handle to improve adaptability.

[0017] 2. The present invention provides two ways to adjust the distance between the two screen frames. One way is to rotate the handheld column to drive the threaded blocks on both sides to move and then lift the connecting plate and the screen frame, so that screening can be performed according to the different rhizomes of Astragalus. The other way can protect the adjusted parts to prevent dust from affecting their use.

[0018] 3. The present invention starts the hydraulic cylinder to drive the connecting bracket to move, thereby changing the distance between the connecting bracket and the main frame to adapt to the depth of the front shovel entering the soil, so that the tilt angle will not be too large, ensuring that the astragalus can be transported and preliminarily separated through the separation net while ensuring the normal operation of the screening mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic perspective view of a modular astragalus harvester with a variable-pitch screen according to the present invention; Figure 2 This is a schematic diagram of the partial structure of the traveling wheel of a modular astragalus harvester with a variable-pitch screen according to the present invention; Figure 3This is a schematic diagram of the partial structure of a baffle of a modular astragalus harvester with a variable-spacing screen according to the present invention; Figure 4 This is a schematic diagram of the partial structure of a centrifugal column of a modular astragalus harvester with a variable-pitch screen according to the present invention; Figure 5 This is a schematic diagram of the partial structure of the front shovel of a modular astragalus harvester with a variable-pitch screen according to the present invention; Figure 6 This is a schematic diagram of three partial structures of a limit rod of a modular astragalus harvester with a variable-spacing screen according to the present invention; Figure 7 This is a schematic diagram of the partial structure of the bottom bracket of a modular astragalus harvester with a variable-pitch screen according to the present invention; Figure 8 This is a partial structural diagram of the bevel gear of a modular astragalus harvester with a variable-pitch screen according to the present invention.

[0020] Among them, 1. Main frame; 2. Vibration mechanism; 201. Motor 1; 202. Pulley 1; 203. Belt 1; 204. Pulley 2; 205. Horizontal column; 206. Centrifugal column; 207. Connecting rod 1; 208. Connecting rod 2; 209. Connecting rod 3; 210. Motor 2; 211. Pulley 3; 212. Belt 2; 213. Pulley 4; 214. Turntable; 215. Multi-directional bracket; 216. Threaded block 1; 217. Threaded column 1; 218. Connecting housing; 219. Turning handle; 220. Top plate; 221. Limit rod 1; 222. Limit rod 2; 223. Limit rod 3; 3. Baffle; 4. Separation net; 5. Connecting block; 6. Front shovel; 7. Screening mechanism; 701. Screening box; 702. Bottom bracket; 703. Forward and reverse screw rods; 704. Threaded block 2; 705. Handheld column 1; 706. Fixed bracket; 707. Positioning rod; 708. Connecting plate; 709. Screen frame; 710. L-shaped plate; 711. Through column; 712. Handheld column 2; 713. Bevel gear 1; 714. Bevel gear 2; 715. Threaded rod 3; 716. Threaded plate; 717. Limiting plate; 718. Protective shell; 8. Hydraulic cylinder; 9. Connecting bracket; 10. Travel wheel; 11. Connecting frame. DETAILED DESCRIPTION

[0021] To better understand the above technical solution, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Please see the attached Figure 1 -Attached Figure 3 An embodiment of the present invention provides a modular astragalus harvester with a variable-pitch screen, comprising a main frame 1, an outer wall of the main frame 1 is provided with a vibration mechanism 2, baffles 3 are provided on both sides of the outer wall of the vibration mechanism 2, the inner wall of the baffle 3 is fixedly connected to a separation net 4, the outer wall of the vibration mechanism 2 is fixedly connected to a connecting block 5, the outer wall of the connecting block 5 is fixedly connected to a front shovel 6, and the outer wall of the main frame 1 is fixedly connected to a connecting frame 11.

[0023] When the hopper 1 is moved, the hopper 1 is moved back and forth, and the hopper 1 is moved back and forth, and the hopper 1 is moved back and forth, and the hopper 1 is moved back and forth, and the hopper 1 is moved back and forth, and the hopper 1 is moved back and forth, and the hopper 1 is moved back and forth, and the hopper 1 is moved back and forth, and the hopper 1 is moved back and forth, and the hopper 1 is moved back and forth, and the hopper 1 is moved back and forth, and the hopper 1 is moved

[0024] Reference Figures 1-4 The vibration mechanism 2 includes a motor 201, the outer wall of the motor 201 is fixedly connected to the outer wall of the main frame 1, the output end of the motor 201 is provided with a pulley 202, the outer wall of the pulley 202 is provided with a belt 203, the outer wall of the belt 203 is provided with a pulley 204, the inner wall of the pulley 204 is fixedly connected to a horizontal column 205, the outer wall of the horizontal column 205 is fixedly connected to a centrifugal column 206, the outer wall of the centrifugal column 206 is rotatably connected to a connecting rod 1 207, the inside of the connecting rod 1 207 is rotatably connected to a connecting rod 208, the outer wall of the connecting rod 208 is rotatably connected to the inside of the baffle 3, the outer wall of the vibration mechanism 2 is rotatably connected to a connecting rod 3 209, and the outer wall of the connecting rod 3 209 is rotatably connected to the inside of the main frame 1.

[0025] Specifically, in this embodiment, when the baffle 3 is driven to vibrate, the motor 1 201 as the driving source can be started to drive the pulley 1 202 at the output end to rotate, and the pulley 2 204 is synchronously driven by the pulley 1 202 through the connection of the belt 1 203, and then the cross column 205 is synchronously driven to rotate. Since the centrifugal column 206 is set on the cross column 205 as an eccentric setting, when the centrifugal column 206 is driven to rotate by the cross column 205, it makes an eccentric motion, and then synchronously pulls the connecting rod 1 207 to move. Restricted by the connecting rod 208, the connecting rod 1 207 rotates around the contact point between the connecting rod 1 207 and the main frame 1 as the central axis, and then pulls the connecting rod 208 to rotate around the connection point between the connecting rod 208 and the main frame 1 as the central axis, thereby pulling the baffle 3 to make a small circular motion. In order to ensure that the baffle 3 can bear the weight, a connecting rod 3 209 is provided at the tail position of the baffle 3, so that the baffles 3 on both sides can make circular motion synchronously while preventing damage to the connecting rod 208, thereby driving the separation net 4, the connecting block 5, and the front shovel 6 to move.

[0026] Reference Figure 5 and Figure 6 The vibration mechanism 2 includes a motor 210, the outer wall of the motor 210 is fixedly connected to the outer wall of the main frame 1, the output end of the motor 210 is provided with a pulley 3 211, the outer wall of the pulley 3 211 is provided with a belt 212, the outer wall of the belt 212 is provided with a pulley 4 213, the outer wall of the pulley 4 213 is rotatably connected to the inside of the main frame 1, the outer wall of the pulley 4 213 is fixedly connected to a turntable 214, the outer wall of the turntable 214 is fixedly connected to a multi-directional bracket 215, the outer wall of the multi-directional bracket 215 is fixedly connected to a threaded block 1 216, and the internal thread of the threaded block 1 216 is connected to a threaded block 216. The threaded column 217, the outer wall of the threaded column 217 is rotatably connected to the connecting shell 218, the inner wall of the connecting shell 218 is slidably connected to the outer wall of the threaded block 216, the outer wall of the threaded column 217 is fixedly connected to the turning handle 219, the outer wall of the turning handle 219 is rotatably connected to the inside of the connecting shell 218, the outer wall of the connecting shell 218 is fixedly connected to the top plate 220, the inside of the top plate 220 is rotatably connected to the limiting rod 1 221, the inside of the top plate 220 is rotatably connected to the limiting rod 222, the outer wall of the limiting rod 222 is rotatably connected to the inside of the main frame 1, and the inside of the baffle 3 is rotatably connected to the limiting rod 3 223.

[0027] Specifically, in this embodiment, by starting the motor 210 fixed to the main frame 1, the output end pulley 3 211 is driven to rotate, and through the connection of the belt 212, the pulley 4 213 is rotated synchronously, thereby driving the turntable 214 to rotate inside the main frame 1, wherein the main frame 1 supports and limits the pulley 4 213, and since the multi-directional bracket 215 and the turntable 214 are eccentrically connected, the multi-directional bracket 215 performs eccentric movement synchronously, and due to the chain ball connection structure in the multi-directional bracket 215, it can push the thread block 1 216 to move, thereby driving the connecting shell 218 to move, and the movement of the connecting shell 218 drives the top plate 220 to move, thereby driving the limit rod 1 221, the limit rod 222, and the limit rod 3 223 to move. Since the other side of the limit rod 222 rotates Inside the baffle 3, the limiting rod 222 is rotated with the portion where the limiting rod 222 is connected to the main frame 1 as the central axis, so that the position of the baffle 3 is driven to make a small circular motion. Through the continuous rotation of the turntable 214, the baffle 3 is continuously moved, thereby driving the separation net 4, the connecting block 5, and the front shovel 6 to move. When the amplitude of the vibration mechanism 2 needs to be adjusted, the rotating handle 219 synchronously drives the threaded column 1 217 to rotate, thereby causing the threaded block 1 216 to move inside the connecting shell 218. When it moves to the middle position, the angle of the chain ball structure in the multi-directional bracket 215 is small, and the amplitude is small. When it moves to the two ends of the connecting shell 218, the amplitude is maximum. This embodiment can adjust the amplitude of the baffle 3 according to different soils or different needs of users to improve the adaptability of the device.

[0028] Reference Figure 2 and Figure 3 The outer wall of the baffle 3 is fixedly connected with a screening mechanism 7, which is located below the separation net 4.

[0029] Specifically, after the astragalus is transported by the separation net 4 and the soil is separated, it will fall into the interior of the screening mechanism 7 through the separation net 4. Through the screening of the screening mechanism 7, it can be screened and stored according to the different diameters of the rhizomes, reducing the steps of manual picking and improving work efficiency.

[0030] Reference Figure 2 、 Figure 3 and Figure 7The screening mechanism 7 includes a screening box 701, the outer wall of the screening box 701 is fixedly connected to the outer wall of the baffle 3, the outer wall of the screening box 701 is fixedly connected to the bottom bracket 702, the inner part of the bottom bracket 702 is rotatably connected to the forward and reverse screw rods 703, the outer walls of the forward and reverse screw rods 703 are threadedly connected to the threaded block 2 704, the outer walls of the forward and reverse screw rods 703 are fixedly connected to the handheld column 1 705, the upper surface of the threaded block 2 704 is fixedly connected to the fixed bracket 706, the outer wall of the fixed bracket 706 is rotatably connected to the positioning rod 707, the outer wall of the positioning rod 707 is rotatably connected to the connecting plate 708, the outer wall of the connecting plate 708 is fixedly connected to the screen frame 709, and the outer wall of the screen frame 709 is slidably connected to the inside of the screening box 701.

[0031] Specifically, in this embodiment, due to the different diameters of the rhizomes of Astragalus, the lengths of the rhizomes of Astragalus excavated are also different. According to the growth degree of Astragalus, the handheld column 1 705 is first rotated to drive the forward and reverse screw rods 703 to rotate inside the bottom bracket 702, wherein the screening box 701 is connected to the baffle 3 to support and fix the bottom bracket 702, thereby driving the threaded block 2 704 to rotate. Since the threaded block 2 704 is restricted by the bottom bracket 702, and since the two ends of the forward and reverse screw rods 703 are provided with two sections of reverse threads, the threaded blocks 2 704 on both sides can move toward each other in the center, thereby driving the fixed bracket 706 to move, and the movement of the fixed bracket 706 drives the positioning rod 707 to move. Since the positioning rod 707 is restricted by the connecting plate 708, the positioning rod 707 moves around the positioning rod. The part where the rod 707 is connected to the fixed bracket 706 is rotated as the central axis, and the connecting plate 708 is lifted upward, thereby driving the screen frame 709 to move inside the screening box 701, and the height between the screen frame 709 below becomes larger. Moreover, through the connection between the screening box 701 and the baffle 3, when the baffle 3 is driven by the vibration mechanism 2, the screening box 701 can be driven to move synchronously, and the astragalus falling on the screen frame 709 is vibrated and screened. The grid of the upper screen frame 709 is larger, and the grid of the lower one is smaller. Through the vibration of the screening box 701, and ensuring that the distance between the two screen frames 709 will not be affected by the rhizomes of the astragalus, the astragalus is screened according to the rhizomes, and a drawer-type structure is provided below, which is convenient for the user to directly take out the separated astragalus. This is an existing structure and will not be described in detail.

[0032] Reference Figure 8The screening mechanism 7 includes a protective shell 718, the outer wall of the protective shell 718 is fixedly connected to the outer wall of the screening box 701, the inner wall of the protective shell 718 is fixedly connected to an L-shaped plate 710, and the internal rotation connection of the L-shaped plate 710 is a through column 711, and both sides of the outer wall of the through column 711 are fixedly connected to a bevel gear 1 713, and the tooth end of the bevel gear 1 713 is meshed with a bevel gear 2 714, and the outer wall of the bevel gear 2 714 is fixedly connected to a threaded rod 3 715, and the outer wall of the threaded rod 3 715 is threadedly connected to a threaded plate 716, and the outer wall of the threaded rod 3 715 is rotatably connected to a limiting plate 717, and the outer wall of the threaded plate 716 is fixedly connected to both sides of the outer wall of the screen frame 709, and the outer wall of the through column 711 is fixedly connected to a hand-held column 2 712, and the outer wall of the hand-held column 2 712 is rotatably connected to the outer wall of the protective shell 718.

[0033] Specifically, in this embodiment, by rotating the handheld column 2 712, the bevel gear 1 713 is driven to rotate inside the L-shaped plate 710, and then the bevel gears 1 713 on both sides are driven to rotate synchronously. Due to the limitation of the L-shaped plate 710, the bevel gear 1 713 and the handheld column 2 712 are always kept in a meshing state, thereby driving the threaded rod 3 715 to rotate. The rotation of the threaded rod 3 715 synchronously drives the threaded plate 716 to move, thereby driving the screen frame 709 to move, and the protective shell 718 protects the internal components to prevent dust from affecting the operation of the components during harvesting. When the device of this embodiment collects astragalus, it can not only adjust the distance between the two screen frames 709, but also protect the components inside the protective shell 718 while driving the screen frame 709 to move more stably from both sides to prevent dust from affecting the operation of the screening mechanism 7.

[0034] Reference Figure 1 and Figure 2 The outer wall of the main frame 1 is fixedly connected to a hydraulic cylinder 8, the output end of the hydraulic cylinder 8 is fixedly connected to a connecting bracket 9, the outer wall of the connecting bracket 9 is slidably connected to the inside of the main frame 1, and the outer wall of the connecting bracket 9 is fixedly connected to a traveling wheel 10.

[0035] Specifically, when the separation net 4 of the device penetrates into the ground to different depths, the traction mechanism will be adjusted to first drive the connecting frame 11 and the main frame 1 to move, and then rotate through the traveling wheel 10 to be in an inclined state. In order to ensure that the screening box 701 can operate normally and the separation net 4 does not tilt too much to transport the excavated astragalus, the hydraulic cylinder 8 is started to pull the connecting bracket 9 to move, thereby reducing the distance between the main frame 1 and the connecting bracket 9, so that the whole is no longer tilted or the tilt angle is small, ensuring that each component can operate normally, and the traveling wheel 10 can facilitate the use of the device in the soil to reduce friction.

[0036] Reference Figure 5 and Figure 6 The outer wall of the limiting rod 1 221 is rotatably connected to the inside of the main frame 1 , the outer wall of the limiting rod 222 is rotatably connected to the inside of the baffle 3 , and the outer wall of the limiting rod 3 223 is rotatably connected to the inside of the main frame 1 .

[0037] Specifically, with the assistance of limit rod 1 221 and limit rod 3 223, when the top plate 220 is driven to move again, it will not be affected by gravity and cause excessive deviation. Through the connection of limit rod 222, when the top plate 220 is driven again, it can drive the baffle 3 to move synchronously.

[0038] Reference Figure 8 The outer wall of the threaded rod 715 is rotatably connected to the inside of the L-shaped plate 710 , and the outer wall of the limiting plate 717 is fixedly connected to the outer wall of the screening box 701 .

[0039] Specifically, the L-shaped plate 710 is used to limit the threaded rod three 715, so that the force that the threaded rod three 715 can withstand is increased while preventing the threaded rod three 715 from being displaced. The limit plate 717 is used to prevent the bevel gear two 714 from rising too high, causing the threaded plate 716 to separate from the threaded part of the threaded rod three 715, and the threaded rod three 715 is supported.

[0040] Reference Figure 7 The outer wall of the connecting plate 708 is slidably connected to the inner wall of the screening box 701 , and the lower surface of the threaded block 704 is slidably connected to the inner wall of the bottom bracket 702 .

[0041] Specifically, the connecting plate 708 slides inside the screening box 701, so that the connecting plate 708 will not flip over when it is lifted and moved by the positioning rod 707. The bottom bracket 702 restricts the threaded block 2 704, so that the bottom bracket 702 will not rotate when driven by the threads of the forward and reverse screw rods 703, and the force is converted into linear motion.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A modular astragalus harvester with a variable spacing screen, comprising a main frame (1), characterized in that: The outer wall of the main frame (1) is provided with a vibration mechanism (2), baffles (3) are provided on both sides of the outer wall of the vibration mechanism (2), the inner wall of the baffle (3) is fixedly connected to a separation net (4), the outer wall of the vibration mechanism (2) is fixedly connected to a connecting block (5), the outer wall of the connecting block (5) is fixedly connected to a front shovel (6), and the outer wall of the main frame (1) is fixedly connected to a connecting frame (11).

2. The modular astragalus harvester with variable spacing screen according to claim 1, characterized in that: The vibration mechanism (2) comprises a motor 1 (201), the outer wall of the motor 1 (201) is fixedly connected to the outer wall of the main frame (1), the output end of the motor 1 (201) is provided with a pulley 1 (202), the outer wall of the pulley 1 (202) is provided with a belt 1 (203), the outer wall of the belt 1 (203) is provided with a pulley 2 (204), the inner wall of the pulley 2 (204) is fixedly connected to a cross column (205), the outer wall of the cross column (205) is fixedly connected to a centrifugal column (206), the outer wall of the centrifugal column (206) is rotatably connected to a connecting rod 1 (207), the interior of the connecting rod 1 (207) is rotatably connected to a connecting rod 2 (208), the outer wall of the connecting rod 2 (208) is rotatably connected to the interior of the baffle (3), the outer wall of the vibration mechanism (2) is rotatably connected to a connecting rod 3 (209), and the outer wall of the connecting rod 3 (209) is rotatably connected to the interior of the main frame (1).

3. The modular astragalus harvester with variable spacing screen according to claim 1, characterized in that: The vibration mechanism (2) includes a second motor (210), the outer wall of the second motor (210) is fixedly connected to the outer wall of the main frame (1), the output end of the second motor (210) is provided with a third pulley (211), the outer wall of the third pulley (211) is provided with a second belt (212), the outer wall of the second belt (212) is provided with a fourth pulley (213), the outer wall of the fourth pulley (213) is rotatably connected to the inside of the main frame (1), the outer wall of the fourth pulley (213) is fixedly connected to a turntable (214), the outer wall of the turntable (214) is fixedly connected to a multi-directional bracket (215), the outer wall of the multi-directional bracket (215) is fixedly connected to a threaded block (216), the inner thread of the threaded block (216) is connected to a threaded block (216). The threaded column (217) is rotatably connected to the outer wall of the connecting shell (218), the inner wall of the connecting shell (218) is slidably connected to the outer wall of the threaded block (216), the outer wall of the threaded column (217) is fixedly connected to the turning handle (219), the outer wall of the turning handle (219) is rotatably connected to the inside of the connecting shell (218), the outer wall of the connecting shell (218) is fixedly connected to the top plate (220), the inside of the top plate (220) is rotatably connected to the limiting rod (221), the inside of the top plate (220) is rotatably connected to the limiting rod (222), the outer wall of the limiting rod (222) is rotatably connected to the inside of the main frame (1), and the inside of the baffle (3) is rotatably connected to the limiting rod (223).

4. The modular astragalus harvester with variable spacing screen according to claim 1, characterized in that: A screening mechanism (7) is fixedly connected to the outer wall of the baffle (3), and the screening mechanism (7) is located below the separation net (4).

5. The modular astragalus harvester with variable spacing screen according to claim 4, characterized in that: The screening mechanism (7) comprises a screening box (701), the outer wall of the screening box (701) is fixedly connected to the outer wall of the baffle (3), the outer wall of the screening box (701) is fixedly connected to a bottom bracket (702), the interior of the bottom bracket (702) is rotatably connected to a forward and reverse screw rod (703), the outer wall of the forward and reverse screw rod (703) is threadedly connected to a second threaded block (704), the outer wall of the forward and reverse screw rod (703) is fixedly connected to a handheld column (705), the upper surface of the second threaded block (704) is fixedly connected to a fixed bracket (706), the outer wall of the fixed bracket (706) is rotatably connected to a positioning rod (707), the outer wall of the positioning rod (707) is rotatably connected to a connecting plate (708), the outer wall of the connecting plate (708) is fixedly connected to a screen frame (709), and the outer wall of the screen frame (709) is slidably connected to the interior of the screening box (701).

6. The modular astragalus harvester with variable spacing screen according to claim 4, characterized in that: The screening mechanism (7) includes a protective shell (718), the outer wall of the protective shell (718) is fixedly connected to the outer wall of the screening box (701), the inner wall of the protective shell (718) is fixedly connected to an L-shaped plate (710), the interior of the L-shaped plate (710) is rotatably connected to a through-column (711), both sides of the outer wall of the through-column (711) are fixedly connected to a bevel gear 1 (713), the tooth end of the bevel gear 1 (713) is meshedly connected to a bevel gear 2 (714), and the bevel gear The outer wall of wheel two (714) is fixedly connected to threaded rod three (715), the outer wall of threaded rod three (715) is threadedly connected to threaded plate (716), the outer wall of threaded rod three (715) is rotatably connected to limit plate (717), the outer wall of threaded plate (716) is fixedly connected to both sides of the outer wall of screen frame (709), the outer wall of through column (711) is fixedly connected to handheld column two (712), the outer wall of handheld column two (712) is rotatably connected to the outer wall of protective shell (718).

7. The modular astragalus harvester with variable spacing screen according to claim 1, characterized in that: The outer wall of the main frame (1) is fixedly connected to a hydraulic cylinder (8), the output end of the hydraulic cylinder (8) is fixedly connected to a connecting bracket (9), the outer wall of the connecting bracket (9) is slidably connected to the interior of the main frame (1), and the outer wall of the connecting bracket (9) is fixedly connected to a traveling wheel (10).

8. The modular astragalus harvester with variable spacing screen according to claim 3, characterized in that: The outer wall of the first limiting rod (221) is rotatably connected to the inside of the main frame (1), the outer wall of the second limiting rod (222) is rotatably connected to the inside of the baffle (3), and the outer wall of the third limiting rod (223) is rotatably connected to the inside of the main frame (1).

9. The modular astragalus harvester with variable spacing screen according to claim 6, characterized in that: The outer wall of the threaded rod (715) is rotatably connected to the inside of the L-shaped plate (710), and the outer wall of the limiting plate (717) is fixedly connected to the outer wall of the screening box (701).

10. The modular astragalus harvester with variable spacing screen according to claim 5, characterized in that: The outer wall of the connecting plate (708) is slidably connected to the inner wall of the screening box (701), and the lower surface of the second threaded block (704) is slidably connected to the inner wall of the bottom bracket (702).

Images