Full-automatic weeding machine

Abstract

The invention relates to the technical field of weeding, in particular to a full-automatic weeding machine which comprises a movable bottom frame, a weeding assembly, a linear conveying table and a grass pressing assembly are arranged on the movable bottom frame, the weeding assembly comprises a spiral mowing wheel, a first driving part and a collecting hopper, and a discharging opening is formed in the collecting hopper; the grass pressing assembly comprises a strip-shaped bin, a material guiding hopper, a reciprocating material pressing mechanism, a pressed returning mechanism and a cutting and pressing mechanism, the reciprocating material pressing mechanism comprises a pushing and pressing plate and a second driving part, the pressed returning mechanism comprises a double-layer pressed plate, a pressure sensor and a limiting part, and a discharging opening is formed in the bottom of the end, away from the pushing and pressing plate, of the strip-shaped bin. The weeding machine has the advantages that the mowed weeds can be wound into the spiral mowing wheel, and can be thrown into the collecting hopper due to centrifugal force along with high-speed rotation of the spiral mowing wheel, so that the mowed weeds cannot affect advancing of the whole weeding machine, and meanwhile, the weeds can be collected in a centralized manner, and follow-up treatment of the weeds is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of weeding, in particular to a full-automatic weeding machine. Background Art

[0002] A lawn mower is also called a lawn mower, a lawn mower, a lawn trimmer, etc. A lawn mower is a mechanical tool used to trim lawns, vegetation, etc. It consists of a cutter disc, an engine, a running wheel, a running mechanism, a blade, an armrest, and a control part. The cutter disc is mounted on the running wheel, the engine is mounted on the cutter disc, and the blade is mounted on the output shaft of the engine. The blade uses the high-speed rotation of the engine to increase the speed a lot, which saves the working time of the weeding workers and reduces a lot of human resources.

[0003] The existing Chinese patent with publication number CN108432447B discloses a step-type fully automatic weeder, but the above patent and the prior art also have the following defects: First, the above patent uses two reciprocating cutting knives to cut weeds. When the entire lawn mower moves on the lawn, the cut weeds will accumulate in front of the two knife racks, that is, the two knife racks will push the cut weeds forward like a shovel, so that the weeds cannot pass through the knife racks and enter the weed collecting device at the rear; Secondly, during the weeding process, the cut weeds will continuously fall to the compacting device at the rear. When compacting the weeds, the compression plate of the above patent can only compact the weeds currently located in the weed collection box, and the weeds that continue to enter will accumulate in front of the compression plate. Over time, more and more weeds will accumulate and the compression plate will be stuck, making it impossible to retract or extend the compression plate.

[0004] Therefore, it is necessary to provide a kind of fully automatic weeding machine to solve for above-mentioned problems. Summary of the invention

[0005] Based on this, it is necessary to provide a fully automatic weeding machine for the existing technical problems.

[0006] In order to solve the problems of the prior art, the technical scheme adopted by the present invention is as follows: a fully automatic weeder comprises a mobile chassis, on which a weeding assembly, a linear transport platform and a weed pressing assembly are sequentially arranged in a horizontal direction, the weeding assembly comprises a spiral mowing wheel, a No. 1 driving member and a collecting bucket, the spiral mowing wheel is horizontally connected to the mobile chassis for rotation, the No. 1 driving member is arranged on the mobile chassis, the collecting bucket is fixedly arranged beside the spiral mowing wheel, a discharging port is arranged on the collecting bucket, the linear transport platform is arranged on the mobile chassis in an inclined state, the lowest end of the linear transport platform is located below the discharging port, the weed pressing assembly comprises a strip bin, a guide hopper, a reciprocating material pressing mechanism, The pressure-retracting mechanism and the cutting and pressing mechanism, the strip bin is horizontally fixed on the mobile base frame, the guide hopper is fixed on the top of the strip bin, the guide hopper is connected with the strip bin, and the guide hopper is located below the highest end of the linear transport platform, the reciprocating pressure mechanism includes a push plate and a No. 2 driving member, the push plate slides in the strip bin, the No. 2 driving member is arranged beside the push plate, the pressure-retracting mechanism includes a double-layer pressure plate, a pressure sensor and a limit member, the double-layer pressure plate slides in the strip bin, the pressure sensor is arranged on the double-layer pressure plate, the limit member is arranged on the strip bin, and a discharge port is arranged at the bottom of the strip bin away from the push plate, and the cutting and pressing mechanism is arranged above the discharge port.

[0007] Furthermore, two symmetrical side arms are fixedly provided at one end of the movable frame, and the spiral mowing wheel includes a central axis, a plurality of circular connecting pieces and a plurality of twisted blades. The central axis is horizontally arranged between the two side arms, and the two ends of the central axis are rotatably connected to the two side arms respectively. The plurality of circular connecting pieces are equidistantly distributed along the axial direction of the central axis, and each circular connecting piece is coaxially fixed to the central axis. The plurality of twisted blades are evenly distributed along the circumferential direction of the central axis, and each twisted blade is fixedly connected to the plurality of circular connecting pieces, and each twisted blade extends spirally along the axial direction of the central axis.

[0008] Furthermore, the No. 1 driving component includes a No. 1 motor and a No. 1 synchronous component. A support base is fixed between the two side arms. The No. 1 motor is horizontally fixed on the support base. The No. 1 synchronous component includes a No. 1 synchronous wheel, a No. 2 synchronous wheel and a No. 1 synchronous belt. The No. 1 synchronous wheel is coaxially fixed to the output end of the No. 1 motor, the No. 2 synchronous wheel is coaxially fixed to the end of the center shaft, and the No. 1 synchronous belt is sleeved on the No. 1 synchronous wheel and the No. 2 synchronous wheel.

[0009] Furthermore, the collecting bucket is fixed at an angle between the two side arms, the cross-section of the collecting bucket is semicircular, an arc-shaped guide cover is provided on the side of the spiral mowing wheel, the two ends of the arc-shaped guide cover are respectively fixed to the two side arms, and a roller located on the side of the arc-shaped guide cover is rotatably provided between the two side arms.

[0010] Furthermore, a support frame in an inclined state is fixedly provided on the mobile base frame, and a linear transport platform is provided on the support frame. A pushing mechanism and a driving mechanism are provided on the support frame. The pushing mechanism includes two groups of pushing arms respectively arranged on both sides of the linear transport platform, each group of pushing arms includes a push-pull plate and a plurality of sliding rods, the push-pull plate is perpendicular to the linear transport platform, and the plurality of sliding rods are equidistantly distributed along the length direction of the push-pull plate, one end of each sliding rod is fixedly connected to the push-pull plate, and a plurality of outwardly extending branches are formed on both sides of the support frame, each branch bar is fixedly provided with a guide seat, each sliding rod passes through the guide seat, each branch bar is slidably provided with a sliding sleeve, and the plurality of sliding sleeves are connected by connecting strips, and each sliding sleeve is provided with a fixed seat fixedly connected to the sliding rod, and the driving mechanism is used to drive the two push-pull plates to translate back and forth toward each other.

[0011] Furthermore, the driving mechanism includes a transmission shaft, a No. 2 synchronous component, a driving shaft, a No. 2 motor and two reciprocating screw rods. The transmission shaft is rotatably arranged on the support frame. The axial direction of the transmission shaft is parallel to the displacement direction of the push-pull plate. The two reciprocating screw rods are coaxially fixed to the two ends of the transmission shaft respectively. A threaded sleeve is screwed on each reciprocating screw rod, and each threaded sleeve is fixed to the corresponding connecting strip. The driving shaft rotates horizontally on the mobile base frame, the No. 2 motor is horizontally fixed on the mobile base frame, the driving shaft is coaxially fixed to the output end of the No. 2 motor, the No. 2 synchronous component includes a No. 3 synchronous wheel, a No. 4 synchronous wheel and a No. 2 synchronous belt. The No. 3 synchronous wheel is coaxially fixed to the transmission shaft, the No. 4 synchronous wheel is coaxially fixed to the driving shaft, and the No. 2 synchronous belt is sleeved on the No. 3 synchronous wheel and the No. 4 synchronous wheel.

[0012] Furthermore, the pushing plate is vertical, and a plurality of guide pulleys are provided on one side of the pushing plate, each group of guide pulleys contacts the inner bottom wall of the strip bin, a horizontal partition is formed on the top of the pushing plate, and the partition is in contact with the inner top wall of the strip bin, and a scraper in an inclined state is formed on the lower half of the guide hopper, and the No. 2 driving member includes a rotating shaft, a rotating handle and a connecting rod, the rotating shaft is horizontally connected to the side wall of the strip bin for rotation, one end of the rotating shaft penetrates into the strip bin, one end of the rotating handle is fixedly connected to one end of the rotating shaft penetrating into the strip bin, one end of the connecting rod is hinged to the side wall of the pushing plate, and the other end of the connecting rod is axially connected to the rotating handle, a No. 1 bevel tooth is coaxially fixedly connected to the rotating shaft, a No. 2 bevel tooth is coaxially fixedly connected to the driving shaft, and the No. 1 bevel tooth is meshed with the No. 2 bevel tooth.

[0013] Furthermore, the double-layer pressure plate includes a movable plate and a pressure plate, both of which are vertical, and the movable plate is close to the push plate, and sliders are formed on both sides of the pressure plate, and horizontal No. 1 strip through grooves are opened on the outer walls on both sides of the strip bin, and each slider passes through the corresponding No. 1 strip through groove, and a plurality of pins are formed on the side of the movable plate facing the pressure plate, each pin passes through the pressure plate horizontally, and a limiting nut is screwed on the end of each pin passing through the pressure plate, and a spring is sleeved on each pin, and the two ends of the spring respectively contact with the movable plate and the pressure plate, and the pressure sensor is fixed on the side of the pressure plate facing the movable plate.

[0014] Furthermore, the limiting component includes a No. 1 hydraulic cylinder, two limiting rods and two strip movable seats. Horizontal strip support plates are formed on the outer walls on both sides of the strip bin. The two strip movable seats slide on the top of the two strip support plates respectively, and each strip movable seat is fixedly connected to the corresponding slider. The No. 1 hydraulic cylinder is vertically mounted above the strip bin. A flat plate is fixedly provided on the output end of the No. 1 hydraulic cylinder. The two limiting rods are respectively arranged on both sides of the strip bin. Each limiting rod is vertically fixedly connected to the flat plate. A No. 2 strip through groove is opened in each strip movable seat. A number of limiting plates evenly distributed along the length direction of the strip movable seat are formed in the No. 2 strip through groove.

[0015] Furthermore, the cutting and pressing parts include a No. 2 hydraulic cylinder, a strip cutter and a pressing plate. The top of the strip bin is provided with an opening corresponding to the discharge port. The No. 2 hydraulic cylinder is vertically mounted above the strip bin, the pressing plate is horizontally fixed to the output end of the No. 2 hydraulic cylinder, and the strip cutter is vertically fixed to one side of the pressing plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: Firstly, the device uses a spiral mowing wheel for weeding. When the spiral mowing wheel is mowing, the cut weeds will be rolled into the spiral mowing wheel, and as the spiral mowing wheel rotates at a high speed, the weeds will be thrown into the collection bucket due to the centrifugal force, so that the cut weeds will not affect the progress of the entire mower, and the weeds can be collected in a centralized manner, which is convenient for subsequent treatment of the weeds; Secondly, when the weeds in the collecting bucket fall onto the linear transport platform, the pushing mechanism arranged on the side of the linear transport platform will push the scattered weeds on the linear transport platform to the center of the linear transport platform, so that the weeds can fall into the guide bucket accurately without sliding directly off the linear transport platform; Thirdly, the weed pressing component of the device is used to reciprocate and squeeze the weeds to compact the weeds. During the compaction process, the partition arranged on the top of the pushing plate will block the lower end of the guide hopper. At this time, the weeds that continue to fall into the guide hopper will directly fall onto the partition without affecting the compaction of the weeds below. When the pushing plate retreats, the scraper arranged in the guide hopper will scrape the weeds on the partition into the strip bin, ultimately ensuring that the subsequent continuous weeds can be compacted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 3 This is a three-dimensional structure diagram of the weed removal component. Figure 1; Figure 4 This is a three-dimensional structure diagram of the weed removal component. Figure 2 ; Figure 5 It is a three-dimensional structural diagram of a spiral mowing wheel; Figure 6 It is a three-dimensional structural schematic diagram of a linear transport platform; Figure 7 is a side view of the linear transport platform; Figure 8 It is a plan view of the push mechanism and the driving mechanism; Fig. 9 It is a three-dimensional structural schematic diagram of the grass pressing component; Fig.10 This is a top view of the strip silo; Fig.11 yes Fig.10 Section view along line AA; Fig.12 yes Fig.11 A1 is a partial enlarged schematic diagram; Fig.13 It is a three-dimensional structural schematic diagram of the reciprocating pressing mechanism; Fig.14 It is a three-dimensional structural diagram of a strip warehouse; Fig.15 It is a three-dimensional structural schematic diagram of the compressed retraction mechanism.

[0018] The numbers in the figure are: 1. Mobile chassis; 2. Weeding component; 3. Linear transport platform; 4. Grass pressing component; 5. Spiral mowing wheel; 6. Collecting bucket; 7. Discharge port; 8. Strip bin; 9. Guide hopper; 10. Push plate; 11. Pressure sensor; 12. Discharge port; 13. Side support arm; 14. Center axis; 15. Circular connecting piece; 16. Twisted blade; 17. No. 1 motor; 18. Support seat; 19. No. 1 synchronous wheel; 20. No. 2 synchronous wheel; 21. No. 1 synchronous belt; 22. Arc guide cover; 23. Roller; 24. Support frame; 25. Push-pull plate; 26. Slide rod; 27. Support bar; 28. Guide seat; 29. ​​Sliding sleeve; 30. Connecting bar; 31. Fixed seat; 32. Transmission shaft; 33. Drive shaft; 34. No. 2 motor; 35 , reciprocating screw; 36, threaded sleeve; 37, No. 3 synchronous wheel; 38, No. 4 synchronous wheel; 39, No. 2 synchronous belt; 40, guide pulley; 41, partition; 42, rotating shaft; 43, rotating handle; 44, connecting rod; 45, No. 1 bevel gear; 46, No. 2 bevel gear; 47, movable plate; 48, pressure plate; 49, slider; 50, No. 1 strip groove; 51, latch; 52, limiting nut; 53, spring; 54, No. 1 hydraulic cylinder; 55, limiting rod; 56, strip movable seat; 57, strip support plate; 58, flat plate; 59, No. 2 strip groove; 60, limiting plate; 61, No. 2 hydraulic cylinder; 62, strip cutter; 63, pressing plate; 64, opening; 65, lateral baffle; 66, baffle; 67, contact rod; 68, perforation; 69, scraper. DETAILED DESCRIPTION

[0019] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] refer to Figures 1 to 15 The fully automatic weeder shown in the figure comprises a mobile chassis 1, on which a weeding assembly 2, a linear transport platform 3 and a grass pressing assembly 4 are sequentially distributed in a horizontal direction. The weeding assembly 2 comprises a spiral mowing wheel 5, a No. 1 driving member and a collecting bucket 6. The spiral mowing wheel 5 is horizontally connected to the mobile chassis 1 for rotation. The No. 1 driving member is arranged on the mobile chassis 1. The collecting bucket 6 is fixedly arranged beside the spiral mowing wheel 5. The collecting bucket 6 is provided with a discharge port 7. The linear transport platform 3 is arranged on the mobile chassis 1 in an inclined state. The lowest end of the linear transport platform 3 is located below the discharge port 7. The grass pressing assembly 4 comprises a strip bin 8, a guide hopper 9, a reciprocating material pressing mechanism, a pressed retreat mechanism and a cutting and pressing mechanism. The strip bin 8 is horizontally fixedly arranged on the mobile chassis 1 (such as Figure 7 As shown, the guide hopper 9 is fixedly arranged on the top of the strip bin 8, the guide hopper 9 is connected with the strip bin 8, and the guide hopper 9 is located below the highest end of the linear transport platform 3, and the reciprocating pressing mechanism includes a push plate 10 and a second driving member, and the push plate 10 slides in the strip bin 8 (as shown in FIG. Fig.11 As shown in the figure, the second driving member is arranged on the side of the push plate 10, the pressure retreat mechanism includes a double-layer pressure plate, a pressure sensor 11 and a limit member, the double-layer pressure plate slides in the strip bin 8, the pressure sensor 11 is arranged on the double-layer pressure plate, the limit member is arranged on the strip bin 8, and a discharge port 12 is arranged at the bottom of the strip bin 8 away from the push plate 10, and the cutting and pressing mechanism is arranged above the discharge port 12.

[0021] During the weeding process, the mobile chassis 1 is displaced in the horizontal direction, and the first driving member drives the spiral mowing wheel 5 to rotate at a high speed. The spiral mowing wheel 5 in high-speed rotation will cut the weeds on the ground. After the weeds are cut, they will be rolled into the spiral mowing wheel 5. Thereafter, the weeds will be thrown into the collecting bucket 6 by the spiral mowing wheel 5 due to the action of centrifugal force. The weeds falling into the collecting bucket 6 will fall onto the linear transport platform 3 through the discharge port 7. The linear transport platform 3 will transport the weeds to the guide hopper 9. Thereafter, the weeds will fall downward into the strip bin 8 through the guide hopper 9. The weeds are located between the push plate 10 and the double-layer pressure plate. At this time, the double-layer pressure plate is not under pressure, and the limiter locks the double-layer pressure plate, so the double-layer pressure plate will not slide. The second driving member is used to drive the push plate 10 to slide back and forth, and the weeds falling into the strip bin 8 are pushed toward the double-layer pressure plate through the push plate 10. When the number of weeds between the double-layer pressure plate and the push plate 10 gradually increases, the double-layer pressure plate is gradually stressed. At this time, the pressure sensor 11 will transmit the pressure on the double-layer pressure plate to the host computer (not shown in the figure), and the double-layer pressure plate is pre-set in the host computer. The minimum pressure threshold and the maximum pressure threshold of the double-layer pressure plate are determined. If the pressure on the double-layer pressure plate does not reach the maximum pressure threshold of the double-layer pressure plate, the weeds will be fully squeezed between the double-layer pressure plate and the push plate 10, so that the scattered weeds are compacted into blocks, and the compacted weeds are convenient for secondary processing. If the pressure on the double-layer pressure plate currently reaches the maximum pressure threshold, the upper computer controls the limiter to release the restriction on the double-layer pressure plate, so that the double-layer pressure plate can slide. When the double-layer pressure plate is in a free state, as the weeds are continuously pushed in, the double-layer pressure plate will be gradually When the double-layer pressure plate is pushed toward the discharge port 12, the pressure on the double-layer pressure plate will be relatively reduced after the double-layer pressure plate retreats. When the pressure on the double-layer pressure plate reaches the minimum pressure threshold, the upper machine will control the limit member to lock the double-layer pressure plate again, thereby limiting the displacement of the double-layer pressure plate, and then prompting the pushing plate 10 to compact the weeds newly fallen into the strip bin 8. As the weeds in the strip bin 8 are continuously compacted, the double-layer pressure plate will be gradually pushed to the side of the discharge port 12 by the weeds. At this time, the cutting and pressing mechanism will cut off the compacted weeds downwards and press the cut weeds out through the discharge port 12 at the same time.

[0022] In order to show the specific structure of the spiral mowing wheel 5, the following features are set: Two symmetrical side arms 13 are fixedly provided at one end of the mobile chassis 1, and the spiral mowing wheel 5 includes a central axis 14, a plurality of circular connecting pieces 15 and a plurality of twisted blades 16. The central axis 14 is horizontally arranged between the two side arms 13, and the two ends of the central axis 14 are rotatably connected to the two side arms 13 respectively. The plurality of circular connecting pieces 15 are equidistantly distributed along the axial direction of the central axis 14, and each circular connecting piece 15 is coaxially fixedly connected to the central axis 14. The plurality of twisted blades 16 are evenly distributed along the circumferential direction of the central axis 14, and each twisted blade 16 is fixedly connected to the plurality of circular connecting pieces 15, and each twisted blade 16 extends spirally along the axial direction of the central axis 14.

[0023] When the central shaft 14 rotates, the central shaft 14 will drive all the twisted blades 16 to rotate through a plurality of circular connecting pieces 15. When all the twisted blades 16 rotate, the twisted blades 16 will cut the weeds on the ground. After the weeds are cut, they will be rolled between the plurality of twisted blades 16. Finally, the weeds will be thrown into the collecting bucket 6 by the plurality of twisted blades 16 due to centrifugal force.

[0024] In order to show the specific structure of the No. 1 driver, the following features are set: The No. 1 driving component includes a No. 1 motor 17 and a No. 1 synchronous component. A support base 18 is fixed between the two side arms 13. The No. 1 motor 17 is horizontally fixed on the support base 18. The No. 1 synchronous component includes a No. 1 synchronous wheel 19, a No. 2 synchronous wheel 20 and a No. 1 synchronous belt 21. The No. 1 synchronous wheel 19 is coaxially fixedly connected to the output end of the No. 1 motor 17, the No. 2 synchronous wheel 20 is coaxially fixedly connected to the end of the central shaft 14, and the No. 1 synchronous belt 21 is sleeved on the No. 1 synchronous wheel 19 and the No. 2 synchronous wheel 20.

[0025] When the first motor 17 is started, the first motor 17 drives the first synchronous wheel 19 to rotate. When the first synchronous wheel 19 rotates, the first synchronous belt 21 drives the second synchronous wheel 20 to rotate. Finally, the second synchronous wheel 20 drives the central shaft 14 to rotate.

[0026] In order to ensure that the weeds can be thrown into the collecting bucket 6 smoothly, the following features are set: The collecting bucket 6 is fixed between the two side arms 13 at an angle, and the cross-section of the collecting bucket 6 is semicircular. An arc-shaped guide cover 22 is provided on the side of the spiral mowing wheel 5. The two ends of the arc-shaped guide cover 22 are respectively fixed to the two side arms 13, and a roller 23 located on the side of the arc-shaped guide cover 22 is rotatably provided between the two side arms 13.

[0027] When the weeds are rolled into the spiral mowing wheel 5, they will be thrown outward due to centrifugal force. During this process, the weeds will be thrown into the collecting bucket 6 along the arc-shaped guide cover 22. The roller 23 arranged between the two side arms 13 is used to support the side arms 13 to ensure that the spiral mowing wheel 5 can stably cut the weeds on the ground.

[0028] In order to ensure that the weeds falling onto the linear transport platform 3 can smoothly fall into the guide hopper 9, the following features are provided: The movable base frame 1 is fixed with a support frame 24 in an inclined state (such as Figure 7 As shown in FIG. 1 , the linear transport platform 3 is arranged on a support frame 24, and a push mechanism and a driving mechanism are arranged on the support frame 24. The push mechanism includes two groups of push arms respectively arranged on both sides of the linear transport platform 3, and each group of push arms includes a push-pull plate 25 and a plurality of slide bars 26 (as shown in FIG. 1 ). Figure 6 As shown in the figure, the push-pull plate 25 is perpendicular to the linear transport platform 3, and a plurality of slide bars 26 are equidistantly distributed along the length direction of the push-pull plate 25. One end of each slide bar 26 is fixedly connected to the push-pull plate 25. A plurality of outwardly extending support bars 27 are formed on both sides of the support frame 24. A guide seat 28 is fixedly provided on each support bar 27. Each slide bar 26 passes through the guide seat 28. A sliding sleeve 29 is slidably provided on each support bar 27. A plurality of sliding sleeves 29 are connected by a connecting bar 30. Each sliding sleeve 29 is provided with a fixed seat 31 fixedly connected to the sliding rod 26. The driving mechanism is used to drive the two push-pull plates 25 to translate back and forth toward each other.

[0029] In actual use, both sides of the linear transport platform 3 are also provided with lateral baffles 65 (such as Figure 6 As shown in FIG. 1 ), the lateral baffle 65 is parallel to the corresponding push-pull plate 25, and one end of each push-pull plate 25 is formed with a baffle bar 66 (as shown in FIG. 1 ) close to the lateral baffle 65. Figure 6 As shown in the figure, the baffle 66 is perpendicular to the lateral baffle 65. When the driving mechanism drives the two push-pull plates 25 to translate toward each other, the sliding rod 26 on each push-pull plate 25 will slide on the corresponding guide seat 28, and the guide seat 28 is used to limit the translation direction of the entire push-pull plate 25, ensuring that the push-pull plate 25 can be pushed from the edge of the linear transport platform 3 to the center of the linear transport platform 3. When the two push-pull plates 25 approach each other, the weeds scattered on the linear transport platform 3 will be pushed to the center of the linear transport platform 3, thereby ensuring that the weeds can accurately fall from the linear transport platform 3 into the guide hopper 9, and when the push-pull plate 25 is pushed forward, the baffle 66 will block the weeds transported upward to prevent the weeds from being pushed off the linear transport platform 3 by the returning push-pull plate 25 when the push-pull plate 25 retreats. When the weeds above are pushed to the center of the linear transport platform 3 by the push-pull plate 25, the lateral baffle 65 is used to prevent the weeds below from sliding off the two sides of the linear transport platform 3.

[0030] In order to show the specific structure of the drive mechanism, the following features are set: The driving mechanism includes a transmission shaft 32, a No. 2 synchronous member, a driving shaft 33, a No. 2 motor 34 and two reciprocating screw rods 35. The transmission shaft 32 is rotatably arranged on the support frame 24. The axial direction of the transmission shaft 32 is parallel to the displacement direction of the push-pull plate 25. The two reciprocating screw rods 35 are coaxially fixedly connected to the two ends of the transmission shaft 32 respectively. A threaded sleeve 36 is rotatably provided on each reciprocating screw rod 35, and each threaded sleeve 36 is fixedly connected to the corresponding connecting strip 30. The driving shaft 33 rotates horizontally on the movable base frame 1, and the No. 2 motor 34 is horizontally fixed on the movable base frame 1. The driving shaft 33 is coaxially fixedly connected to the output end of the No. 2 motor 34. The No. 2 synchronous member includes a No. 3 synchronous wheel 37, a No. 4 synchronous wheel 38 and a No. 2 synchronous belt 39. The No. 3 synchronous wheel 37 is coaxially fixedly connected to the transmission shaft 32, the No. 4 synchronous wheel 38 is coaxially fixedly connected to the driving shaft 33, and the No. 2 synchronous belt 39 is sleeved on the No. 3 synchronous wheel 37 and the No. 4 synchronous wheel 38.

[0031] When the No. 2 motor 34 is started, the No. 2 motor 34 will drive the driving shaft 33 to rotate, and the driving shaft 33 will drive the No. 4 synchronous wheel 38 to rotate. Then, through the transmission action of the No. 2 synchronous belt 39, the No. 3 synchronous wheel 37 will drive the transmission shaft 32 to rotate. After the transmission shaft 32 rotates, the two reciprocating screws 35 will be driven to rotate. At this time, the corresponding connecting bar 30 is driven to translate through the threaded sleeve 36 screwed on the reciprocating screw 35. Finally, the connecting bar 30 will drive several sliding rods 26 to slide through the fixed seat 31.

[0032] In order to show the specific structure of the second drive, the following features are set: The push plate 10 is vertical, and one side of the push plate 10 is provided with a plurality of guide pulleys 40 (such as Fig.13 As shown in the figure, each group of guide pulleys 40 is in contact with the inner bottom wall of the strip bin 8, and a horizontal partition 41 is formed on the top of the push plate 10, and the partition 41 is in contact with the inner top wall of the strip bin 8. The lower half of the guide hopper 9 is formed with an inclined scraper 69, and the second driving member includes a rotating shaft 42, a rotating handle 43 and a connecting rod 44. The rotating shaft 42 is horizontally connected to the side wall of the strip bin 8 for rotation, one end of the rotating shaft 42 penetrates into the strip bin 8, one end of the rotating handle 43 is fixedly connected to the end of the rotating shaft 42 penetrated into the strip bin 8, one end of the connecting rod 44 is hinged to the side wall of the push plate 10, and the other end of the connecting rod 44 is axially connected to the rotating handle 43. A first bevel tooth 45 is coaxially fixedly connected to the rotating shaft 42, and a second bevel tooth 46 is coaxially fixedly connected to the driving shaft 33 (as shown in the figure). Fig. 9 As shown), and the No. 1 bevel tooth 45 is meshed with the No. 2 bevel tooth 46.

[0033] When the second motor 34 drives the driving shaft 33 to rotate, the driving shaft 33 will drive the second bevel gear 46 to rotate. Since the first bevel gear 45 is meshed with the second bevel gear 46, the first bevel gear 45 will drive the rotating shaft 42 to rotate. When the rotating shaft 42 rotates, the rotating shaft 42 will drive the connecting rod 44 to swing back and forth through the rotating handle 43, and finally drive the pushing plate 10 to slide back and forth in the strip bin 8 through the connecting rod 44. Among them, several groups of guide pulleys 40 are used for the pushing plate 10 to slide. In the process of the pushing plate 10 pushing the weeds to the double-layer pressure plate, the partition 41 arranged on the top of the pushing plate 10 will block the opening of the guide hopper 9 into the strip bin 8. At this time, the weeds falling from the guide hopper 9 will fall on the partition 41. When the pushing plate 10 returns, the weeds falling on the partition 41 will be scraped back into between the pushing plate 10 and the double-layer pressure plate by the scraper 69.

[0034] In order to show the specific structure of the double-layer pressure plate, the following features are set: The double-layer pressure plate includes a movable plate 47 and a pressure plate 48 (such as Fig.15 As shown in the figure, the movable plate 47 and the pressure plate 48 are both vertical, and the movable plate 47 is close to the push plate 10. Slide blocks 49 are formed on both sides of the pressure plate 48. The outer walls of both sides of the strip bin 8 are provided with horizontal No. 1 strip through grooves 50 (as shown in the figure). Fig.11 As shown in the figure, each slider 49 passes through the corresponding No. 1 strip-shaped through slot 50, and a plurality of latches 51 are formed on the side of the movable plate 47 facing the pressure plate 48, and each latch 51 passes through the pressure plate 48 horizontally. A limiting nut 52 is screwed on the end of each latch 51 passing through the pressure plate 48, and a spring 53 is sleeved on each latch 51, and the two ends of the spring 53 respectively contact the movable plate 47 and the pressure plate 48, and the pressure sensor 11 is fixedly arranged on the side of the pressure plate 48 facing the movable plate 47.

[0035] In the initial state, the movable plate 47 is separated from the pressure plate 48 by the spring 53, and the movable plate 47 does not contact the pressure sensor 11. At the same time, the limit member locks the pressure plate 48, and the pressure plate 48 cannot move. As the weeds in the strip bin 8 gradually increase, the compacted weeds will resist the movable plate 47, so that the movable plate 47 will move toward the pressure plate 48. During this process, the movable plate 47 will compress the spring 53, so that the spring 53 generates elastic force, and the movable plate 47 will press on the pressure sensor 11. At this time, the pressure sensor 11 will transmit the pressure value of the movable plate 47 to the upper computer. When the measured pressure value is greater than the maximum pressure threshold, the limit member will unlock the restriction on the pressure plate 48, so that the entire movable plate 47 and the pressure plate 48 will be displaced toward the discharge port 12 by the weeds. Among them, the limiting nut 52 provided at the end of the pin 51 is used to prevent the pin 51 from detaching from the pressure plate 48.

[0036] In order to show the specific structure of the limiter, the following features are set: The limiting member includes a No. 1 hydraulic cylinder 54, two limiting rods 55 and two strip-shaped movable seats 56. The outer walls of both sides of the strip bin 8 are formed with horizontal strip support plates 57 (such as Fig.14 As shown in the figure, two strip movable seats 56 slide on the top of two strip support plates 57 respectively, and each strip movable seat 56 is fixedly connected to the corresponding slider 49, and the No. 1 hydraulic cylinder 54 is vertically mounted above the strip bin 8, and a flat plate 58 is fixedly provided on the output end of the No. 1 hydraulic cylinder 54, and two limit rods 55 are respectively arranged on both sides of the strip bin 8, and each limit rod 55 is vertically fixedly connected to the flat plate 58, and each strip movable seat 56 is provided with a No. 2 strip through groove 59, and a plurality of limit plates 60 uniformly distributed along the length direction of the strip movable seat 56 are formed in the No. 2 strip through groove 59.

[0037] In the initial state, the movable plate 47 is not in contact with the pressure sensor 11. At this time, the No. 1 hydraulic cylinder 54 drives the two limit rods 55 to descend through the flat plate 58. Each limit rod 55 will be inserted downward into the corresponding No. 2 strip groove 59, and one of the limit plates 60 in each No. 2 strip groove 59 will conflict with the limit rod 55, so as to limit the retreat of the pressure plate 48. When the weeds in the strip bin 8 gradually increase, the weeds will conflict with the movable plate 47, so that the movable plate 47 is pressed on the pressure sensor 11. When the pressure measured by the pressure sensor 11 reaches the maximum pressure threshold, the upper machine will control the No. 1 hydraulic cylinder 54 to drive the flat plate 58 to rise, so that each limit rod 55 will be inserted from the corresponding No. 2 strip groove 5 9, at this time, the strip movable seat 56 is no longer restricted by the limit rod 55, so when the weeds continue to press on the movable plate 47, the pressure plate 48 will be driven to gradually retreat, and when the pressure plate 48 retreats, the resistance of the movable plate 47 to the weeds will be relatively reduced. At this time, when the pressure measured by the pressure sensor 11 reaches the minimum pressure threshold, the upper machine will control the No. 1 hydraulic cylinder 54 to drive the plate 58 to descend, and the limit rod 55 will be inserted downward into the No. 2 strip through groove 59 again, then the subsequent limit plate 60 will conflict with the limit rod 55, and finally the pressure plate 48 will be restricted from displacement again, wherein, a plurality of resistance rods 67 are fixedly provided at one end of the strip bin 8 close to the discharge port 12, and each resistance rod 67 is horizontal (such as Fig.15 As shown in the figure, when processing the pressure plate 48, a plurality of through holes 68 for the resistance rods 67 to pass through are opened on the pressure plate 48. When the pressure plate 48 is pushed by the weeds to be close to the resistance rods 67, each resistance rod 67 will pass through the pressure plate 48 and resist the movable plate 47. Therefore, after the movable plate 47 passes over the discharge port 12, the movable plate 47 is restricted from continuing to retreat by resisting the resistance rods 67, thereby ensuring that the weeds that subsequently fall into the strip bin 8 can continue to be compacted by the pushing plate 10.

[0038] In order to show the specific structure of the cutting and pressing parts, the following features are set: The cutting and pressing parts include a No. 2 hydraulic cylinder 61, a strip cutter 62 and a pressure plate 63. An opening 64 corresponding to the discharge port 12 is provided on the top of the strip bin 8. The No. 2 hydraulic cylinder 61 is vertically mounted above the strip bin 8. The pressure plate 63 is horizontally fixed to the output end of the No. 2 hydraulic cylinder 61. The strip cutter 62 is vertically fixed to one side of the pressure plate 63.

[0039] During the weeding process, the cut weeds will be compacted in the strip bin 8. When the weeding is completed, the No. 2 hydraulic cylinder 61 will drive the pressure plate 63 and the strip cutter 62 to extend downward into the opening 64. During this process, the strip cutter 62 will cut the compacted weeds, and the pressure plate 63 will press the weeds toward the discharge port 12. In actual use, an automatic baler can be installed on the mobile chassis 1. The automatic baler is a prior art, so it is not shown in the figure. The weeds discharged from the discharge port 12 are baled by the automatic baler.

[0040] Working principle: During the weeding process, the mobile chassis 1 is displaced in the horizontal direction, and the first driving member drives the spiral mowing wheel 5 to rotate at a high speed. The spiral mowing wheel 5 in high-speed rotation will cut the weeds on the ground. After the weeds are cut, they will be rolled into the spiral mowing wheel 5. Thereafter, the weeds will be thrown into the collecting bucket 6 by the spiral mowing wheel 5 due to the action of centrifugal force. The weeds falling into the collecting bucket 6 will fall onto the linear transport platform 3 through the discharge port 7. The linear transport platform 3 will transport the weeds to the guide hopper 9. Thereafter, the weeds will fall downward into the strip bin 8 through the guide hopper 9. The weeds are located between the push plate 10 and the double-layer pressure plate. At this time, the double-layer pressure plate is not under pressure, and the limiter locks the double-layer pressure plate, so the double-layer pressure plate will not slide. The second driving member is used to drive the push plate 10 to slide back and forth, and the weeds falling into the strip bin 8 are pushed toward the double-layer pressure plate through the push plate 10. When the number of weeds between the double-layer pressure plate and the push plate 10 gradually increases, the double-layer pressure plate is gradually stressed. At this time, the pressure sensor 11 will transmit the pressure on the double-layer pressure plate to the host computer (not shown in the figure), and the double-layer pressure plate is pre-set in the host computer. The minimum pressure threshold and the maximum pressure threshold of the double-layer pressure plate are determined. If the pressure on the double-layer pressure plate does not reach the maximum pressure threshold of the double-layer pressure plate, the weeds will be fully squeezed between the double-layer pressure plate and the push plate 10, so that the scattered weeds are compacted into blocks, and the compacted weeds are convenient for secondary processing. If the pressure on the double-layer pressure plate currently reaches the maximum pressure threshold, the upper computer controls the limiter to release the restriction on the double-layer pressure plate, so that the double-layer pressure plate can slide. When the double-layer pressure plate is in a free state, as the weeds are continuously pushed in, the double-layer pressure plate will be gradually When the double-layer pressure plate is pushed toward the discharge port 12, the pressure on the double-layer pressure plate will be relatively reduced after the double-layer pressure plate retreats. When the pressure on the double-layer pressure plate reaches the minimum pressure threshold, the upper machine will control the limit member to lock the double-layer pressure plate again, thereby limiting the displacement of the double-layer pressure plate, and then prompting the pushing plate 10 to compact the weeds newly fallen into the strip bin 8. As the weeds in the strip bin 8 are continuously compacted, the double-layer pressure plate will be gradually pushed to the side of the discharge port 12 by the weeds. At this time, the cutting and pressing mechanism will cut off the compacted weeds downwards and press the cut weeds out through the discharge port 12 at the same time.

[0041] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A fully automatic weeder, characterized in that: The invention comprises a mobile chassis (1), on which a weeding assembly (2), a linear transport platform (3) and a grass pressing assembly (4) are arranged in sequence in a horizontal direction, the weeding assembly (2) comprises a spiral mowing wheel (5), a first driving member and a collecting bucket (6), the spiral mowing wheel (5) is horizontally connected to the mobile chassis (1) for rotation, the first driving member is arranged on the mobile chassis (1), the collecting bucket (6) is fixedly arranged beside the spiral mowing wheel (5), the collecting bucket (6) is provided with a discharge port (7), the linear transport platform (3) is arranged on the mobile chassis (1) in an inclined state, the lowest end of the linear transport platform (3) is located below the discharge port (7), the grass pressing assembly (4) comprises a strip bin (8), a guide hopper (9), a reciprocating material pressing mechanism, a pressure-retracting mechanism and a cutting and pressing mechanism, the strip bin (8) 8) is horizontally fixed on the mobile base frame (1), the guide hopper (9) is fixed on the top of the strip bin (8), the guide hopper (9) is connected to the strip bin (8), and the guide hopper (9) is located below the highest end of the linear transport platform (3), the reciprocating pressing mechanism includes a push plate (10) and a second driving member, the push plate (10) slides in the strip bin (8), the second driving member is arranged on the side of the push plate (10), the pressure-bearing retraction mechanism includes a double-layer pressure plate, a pressure sensor (11) and a limit member, the double-layer pressure plate slides in the strip bin (8), the pressure sensor (11) is arranged on the double-layer pressure plate, the limit member is arranged on the strip bin (8), and a discharge port (12) is provided at the bottom of the strip bin (8) away from the push plate (10), and the cutting and pressing mechanism is arranged above the discharge port (12).

2. A fully automatic weeder according to claim 1, characterized in that: Two symmetrical side arms (13) are fixedly provided at one end of the mobile chassis (1). The spiral mowing wheel (5) comprises a central axis (14), a plurality of circular connecting pieces (15) and a plurality of twisted blades (16). The central axis (14) is horizontally arranged between the two side arms (13). The two ends of the central axis (14) are respectively rotatably connected to the two side arms (13). The plurality of circular connecting pieces (15) are equidistantly distributed along the axial direction of the central axis (14). Each circular connecting piece (15) is coaxially fixedly connected to the central axis (14). The plurality of twisted blades (16) are evenly distributed along the circumferential direction of the central axis (14). Each twisted blade (16) is fixedly connected to the plurality of circular connecting pieces (15). Each twisted blade (16) extends spirally along the axial direction of the central axis (14).

3. A fully automatic weeder according to claim 2, characterized in that: The first driving member comprises a first motor (17) and a first synchronous member. A support seat (18) is fixedly provided between the two side support arms (13). The first motor (17) is horizontally fixed on the support seat (18). The first synchronous member comprises a first synchronous wheel (19), a second synchronous wheel (20) and a first synchronous belt (21). The first synchronous wheel (19) is coaxially fixedly connected to the output end of the first motor (17). The second synchronous wheel (20) is coaxially fixedly connected to the end of the central shaft (14). The first synchronous belt (21) is sleeved on the first synchronous wheel (19) and the second synchronous wheel (20).

4. A fully automatic weeder according to claim 2, characterized in that: The collecting bucket (6) is fixed between the two side arms (13) in an inclined manner. The cross section of the collecting bucket (6) is semicircular. An arc-shaped guide cover (22) is provided on the side of the spiral mowing wheel (5). The two ends of the arc-shaped guide cover (22) are respectively fixedly connected to the two side arms (13). A roller (23) located on the side of the arc-shaped guide cover (22) is rotatably provided between the two side arms (13).

5. The fully automatic weeder according to claim 1, characterized in that: A support frame (24) in an inclined state is fixedly provided on the mobile base frame (1), a linear transport platform (3) is provided on the support frame (24), a push mechanism and a driving mechanism are provided on the support frame (24), the push mechanism comprises two groups of push arms respectively provided on both sides of the linear transport platform (3), each group of push arms comprises a push-pull plate (25) and a plurality of slide bars (26), the push-pull plate (25) is perpendicular to the linear transport platform (3), a plurality of slide bars (26) are equidistantly distributed along the length direction of the push-pull plate (25), and one end of each slide bar (26) is The support frame (24) is fixedly connected to the push-pull plate (25), and a plurality of outwardly extending support bars (27) are formed on both sides of the support frame (24). A guide seat (28) is fixedly provided on each support bar (27). Each slide bar (26) passes through the guide seat (28). A sliding sleeve (29) is slidably provided on each support bar (27). The plurality of sliding sleeves (29) are connected via a connecting bar (30). Each sliding sleeve (29) is provided with a fixed seat (31) fixedly connected to the slide bar (26). The driving mechanism is used to drive the two push-pull plates (25) to move back and forth toward each other.

6. A fully automatic weeder according to claim 5, characterized in that: The driving mechanism comprises a transmission shaft (32), a second synchronous member, a driving shaft (33), a second motor (34) and two reciprocating screw rods (35). The transmission shaft (32) is rotatably arranged on a support frame (24). The axial direction of the transmission shaft (32) is parallel to the displacement direction of the push-pull plate (25). The two reciprocating screw rods (35) are coaxially fixedly connected to the two ends of the transmission shaft (32), respectively. A threaded sleeve (36) is screwed on each reciprocating screw rod (35). Each threaded sleeve (36) is fixedly connected to a corresponding connecting strip (30). The driving shaft (33) The movable frame (31) is horizontally rotatable on the movable frame (1); the second motor (34) is horizontally fixed on the movable frame (1); the driving shaft (33) is coaxially fixedly connected to the output end of the second motor (34); the second synchronous member comprises a third synchronous wheel (37), a fourth synchronous wheel (38) and a second synchronous belt (39); the third synchronous wheel (37) is coaxially fixedly connected to the transmission shaft (32); the fourth synchronous wheel (38) is coaxially fixedly connected to the driving shaft (33); and the second synchronous belt (39) is sleeved on the third synchronous wheel (37) and the fourth synchronous wheel (38).

7. A fully automatic weeder according to claim 6, characterized in that: The push plate (10) is vertical, and a plurality of guide pulleys (40) are provided on one side of the push plate (10), and each guide pulley (40) is in contact with the inner bottom wall of the strip bin (8). A horizontal partition (41) is formed on the top of the push plate (10), and the partition (41) is in contact with the inner top wall of the strip bin (8). A scraper (69) is formed on the lower half of the guide hopper (9) in an inclined state. The second driving member includes a rotating shaft (42), a rotating handle (43) and a connecting rod (44). The rotating shaft (42) is horizontally connected to the strip bin (8). The side wall of the bin (8) is rotatably connected, one end of the rotating shaft (42) penetrates into the strip bin (8), one end of the rotating handle (43) is fixedly connected to the end of the rotating shaft (42) penetrating into the strip bin (8), one end of the connecting rod (44) is hinged to the side wall of the push plate (10), the other end of the connecting rod (44) is axially connected to the rotating handle (43), a first bevel tooth (45) is coaxially fixedly connected to the rotating shaft (42), a second bevel tooth (46) is coaxially fixedly connected to the driving shaft (33), and the first bevel tooth (45) is meshed with the second bevel tooth (46).

8. The fully automatic weeder according to claim 1, characterized in that: The double-layer pressure plate comprises a movable plate (47) and a pressure plate (48), the movable plate (47) and the pressure plate (48) are both vertical, and the movable plate (47) is close to the push plate (10), and sliders (49) are formed on both sides of the pressure plate (48), and horizontal No. 1 strip through grooves (50) are opened on the outer walls of both sides of the strip bin (8), and each slider (49) passes through the corresponding No. 1 strip through groove (50), and the movable plate (47) is oriented toward the pressure plate (48). A plurality of latches (51) are formed on one side, each latch (51) passes through the pressure plate (48) in a horizontal manner, a limit nut (52) is screwed onto the end of each latch (51) passing through the pressure plate (48), a spring (53) is sleeved on each latch (51), two ends of the spring (53) respectively contact the movable plate (47) and the pressure plate (48), and the pressure sensor (11) is fixedly arranged on the side of the pressure plate (48) facing the movable plate (47).

9. A fully automatic weeder according to claim 8, characterized in that: The limiting member comprises a No. 1 hydraulic cylinder (54), two limiting rods (55) and two strip-shaped movable seats (56). The outer walls on both sides of the strip-shaped bin (8) are formed with horizontal strip-shaped supporting plates (57). The two strip-shaped movable seats (56) slide on the tops of the two strip-shaped supporting plates (57) respectively, and each strip-shaped movable seat (56) is fixedly connected to a corresponding slider (49). The No. 1 hydraulic cylinder (54) is vertically mounted above the strip-shaped bin (8). A plate (58) is fixedly provided on the output end of the No. 1 hydraulic cylinder (54). The two limiting rods (55) are respectively arranged on both sides of the strip-shaped bin (8), and each limiting rod (55) is vertically fixedly connected to the plate (58). Each strip-shaped movable seat (56) is provided with a No. 2 strip-shaped through groove (59), and a plurality of limiting plates (60) uniformly distributed along the length direction of the strip-shaped movable seat (56) are formed in the No. 2 strip-shaped through groove (59).

10. The fully automatic weeder according to claim 1, characterized in that: The cutting and pressing member comprises a No. 2 hydraulic cylinder (61), a strip cutter (62) and a pressing plate (63); an opening (64) corresponding to the discharge port (12) is provided on the top of the strip bin (8); the No. 2 hydraulic cylinder (61) is vertically mounted above the strip bin (8); the pressing plate (63) is horizontally fixedly connected to the output end of the No. 2 hydraulic cylinder (61); and the strip cutter (62) is vertically fixedly connected to one side of the pressing plate (63).

Images