A biomimetic straw collection and dust removal device

Abstract

This invention proposes a biomimetic straw gathering and dust removal device, belonging to the field of agricultural machinery and equipment technology. It solves the problems of existing gathering devices, such as low collection efficiency, easy missed collection, easy clogging of the gathering mechanism, poor adaptability, lack of pre-soil removal function, limited baling quality, complex transmission structure, and low modularity. It includes a shell, a collection mechanism, a conveying mechanism, and a dust removal mechanism. The collection mechanism includes biomimetic robotic arms symmetrically arranged on both sides of the feeding slope. Each robotic arm includes a mounting plate, a fixed shaft I, a rotating wheel, a fixed shaft II, a rocker arm, a connecting shaft, a crab arm, and a motor I. The fixed shaft I and the rotating wheel are arranged vertically along the inclined direction of the mounting plate. The fixed shaft I is perpendicularly connected to the mounting plate, and the fixed shaft II is perpendicularly connected to the rotating wheel. The crab arm is rotatably connected to the fixed shaft II. One end of the rocker arm is rotatably connected to the fixed shaft I, and the other end is hinged to the crab arm. It is mainly used for collecting straw from the bottom surface and removing dust.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery and equipment technology, and in particular to a biomimetic straw collection and dust removal device. Background Technology

[0002] Currently, straw balers are widely used in field operations as key equipment for the resource utilization of crop straw. The front end of a baler is usually equipped with a gathering or picking-up device to collect straw scattered on the ground and transport it to the subsequent baling mechanism. However, existing gathering devices generally suffer from the following technical problems: low picking-up efficiency, easy to miss straw, easy clogging of the gathering mechanism, poor adaptability, lack of pre-soil removal function, limited baling quality, complex transmission structure, and low modularity. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a biomimetic straw gathering and dust removal device. It employs a biomimetic linkage mechanism consisting of a rotating wheel, a crab arm, a rocker arm, and a connecting shaft, mimicking the swinging motion of a crab arm to actively gather and push straw from the ground. This mechanism features gentle movements, a large gathering range, and adaptability to straw in different stacking states, significantly reducing the rate of missed collection and minimizing entanglement and blockage. It establishes a complete operational chain of "gathering—conveyance—pre-soil removal—secondary dust removal via drum screen—fan blowing out." The drum screen, driven by friction wheels, has a compact structure, stable operation, high rotation speed, and thorough dust removal. Secondary dust removal further reduces the soil content of the straw, improving the baling quality of the straw entering the baling mechanism.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a straw biomimetic gathering and dust removal device, comprising a shell, a collecting mechanism, a conveying mechanism, and a dust removal mechanism; The shell has a feed inlet on one side and a discharge outlet on the other side, and a feed ramp extends outward from the feed inlet from the shell. The collecting mechanism includes bionic robotic arms symmetrically arranged on both sides of the feeding ramp with the feeding direction as the axis. Each bionic robotic arm includes a mounting plate, a fixed shaft I, a rotating wheel, a fixed shaft II, a rocker arm, a connecting shaft, a crab arm, and a motor I. The mounting plate is inclined and parallel to the feeding ramp and connected to the housing. The fixed shaft I and the rotating wheel are arranged vertically along the inclined direction of the mounting plate. The fixed shaft I is perpendicularly connected to the top surface of the mounting plate. The rotating wheel is rotatably connected to the mounting plate. The fixed shaft II is perpendicularly connected to the top surface of the rotating wheel, and their axes are parallel to each other. The crab arm is rotatably connected to the fixed shaft II. One end of the rocker arm is rotatably connected to the fixed shaft I, and the other end is hinged to the top of the crab arm through the connecting shaft. The bottom end of the crab arm is located directly above the feeding ramp. The motor I is connected to the bottom surface of the mounting plate and is used to drive the rotating wheel to rotate. The conveying mechanism is installed inside the housing and connected to an external power source to provide power, conveying the material entering from the feed ramp to the dust removal mechanism; The dust removal mechanism is installed inside the housing and connected to an external power source to provide power. After removing dust from the material, it is output through the discharge port.

[0005] Furthermore, the conveying mechanism includes conveyor belt I, conveyor belt II, and drive shafts I, II, III, IV, and V, all rotatably connected to the housing. Conveyor belt I cooperates with drive shafts I, II, and III. One end of conveyor belt I is located at the top of the feeding ramp, and the other end is located at the top of the dust removal mechanism. Conveyor belt I includes a planar section and an ascending section along the feeding direction. Drive shaft I is located at the starting point of the planar section, drive shaft II is located at the intersection of the planar section and the ascending section, and drive shaft III is located at the end point of the ascending section. Conveyor belt II cooperates with drive shafts IV and V and is arranged parallel to the top surface of the ascending section. A brush head is fixed on conveyor belt II, and an external power source drives drive shafts I and IV to rotate.

[0006] Furthermore, one end of the drive shaft III is connected to the drive shaft IV via a gear, and the other end is connected to both the drive shaft I and the drive shaft II via a belt I. An external power source drives the drive shaft I to rotate, which in turn drives the drive shaft III to rotate via the belt I. The drive shaft III then drives the drive shaft IV to rotate via a gear. The end of the drive shaft IV that is connected to the drive shaft III is also connected to the drive shaft V via the belt II.

[0007] Furthermore, the conveying mechanism also includes a tensioning shaft symmetrically arranged with the feeding direction as the axis. The tensioning shaft is parallel to the transmission shaft II, axially rotatably connected to the housing, and radially connected to the top surface of the conveyor belt I at the intersection of the planar section and the rising section. The tensioning shaft near the belt I extends toward the belt I and is provided with a shaft segment I, which is radially connected to the top surface of the belt I.

[0008] Furthermore, the inclination angle of the feed ramp is 5° to 15°; the inclination angle of the rising section of conveyor belt I is 50° to 70°.

[0009] Furthermore, the dust removal mechanism includes a dust removal hood, a material conveying bin, a material receiving chamber, a drum screen, a screw conveyor shaft A, a screw conveyor shaft B, a fan, a support plate, a bearing seat, a motor II, and an active friction wheel; The soil removal hood has an opening in the radial direction facing the conveying mechanism for receiving materials. The soil removal hood is located inside the shell, with one end connected to the shell and the other end connected to the material conveying bin. The material conveying bin is connected to the shell and is inclined downwards in a direction away from the axis of the soil removal hood. The material receiving chamber is installed inside the housing and is connected to the discharge port; One end of the drum screen is connected to the material conveying bin, and the other end is connected to the material receiving chamber. The drum screen is inclined downwards in the direction away from the material conveying bin. The spiral conveyor shaft A is coaxial with the soil removal cover, with one end rotatably connected to the shell and the other end rotatably connected to the material conveying bin; The screw conveyor shaft B is parallel to the screw conveyor shaft A and is arranged opposite to the screw conveyor shaft A along the inclined direction of the material conveying bin. One end of the screw conveyor shaft B is rotatably connected to the material conveying bin, and the other end faces the inside of the drum screen. The fan is located in the material receiving chamber and is parallel to the screw conveyor shaft A; The support plate is located below the drum screen and is connected to the inner wall of the shell. The bearing seat and motor II are both mounted on the support plate. The drum screen is installed inside the bearing seat. The active friction wheel is in frictional connection with the outer wall of the drum screen. Motor II drives the active friction wheel to rotate. The spiral blades of the spiral conveyor shafts A and B rotate in opposite directions. One end of the spiral conveyor shaft A is connected to the spiral conveyor shaft B via belt III, and the other end is connected to the fan via belt IV. The external power source drives the spiral conveyor shaft A to rotate.

[0010] Furthermore, the dust removal mechanism also includes a baffle, which is located between the dust removal hood and the drum screen and is connected to the housing.

[0011] Furthermore, the dust removal mechanism also includes a driven friction wheel, which is arranged opposite to the driving friction wheel along the axis of the drum screen. The driven friction wheel is mounted on the top surface of the support plate and is in frictional connection with the outer wall of the drum screen.

[0012] Furthermore, the motor II, the active friction wheel, and the driven friction wheel are all a pair, and are arranged symmetrically with the projection of the drum screen axis onto the top surface of the support plate as the axis.

[0013] Furthermore, the material conveying bin is tilted at an angle of 30° to 45°; the drum screen is tilted at an angle of 6° to 10°.

[0014] Compared with the prior art, the beneficial effects of the biomimetic straw collection and dust removal device of the present invention are: 1. This invention addresses the problems of low collection efficiency, easy omission, easy clogging, and lack of pre-soil removal function in existing collection devices. It provides a novel device that integrates biomimetic collection, conveying, and secondary dust removal. The biomimetic manipulator, composed of a rotating wheel, a crab arm, a rocker arm, and a connecting shaft, mimics the swinging posture of a crab arm to achieve active, gentle, and wide-range collection and pushing of straw on the ground, significantly improving collection efficiency and effectively solving the problems of omission and clogging.

[0015] 2. This invention constructs a complete work chain consisting of a soil removal hood and a spiral conveyor shaft A for pre-dust removal, an active friction wheel driving the drum screen for secondary dust removal, and a fan for wind power output. The two-stage dust removal is progressive, which greatly reduces the soil content of straw and improves the baling quality of straw entering the baling mechanism.

[0016] 3. Existing dust removal structures mostly use gear drives, chain drives, or belt drives to rotate the drum screen. These transmission methods have the following significant shortcomings in actual operation: ① The straw contains soil, and the chain or belt is prone to loosening and wear under long-term high loads and harsh environments, requiring frequent maintenance and affecting operational continuity; ② The existing drum screen design has a low speed, and the straw does not tumble sufficiently inside the screen, making it difficult to further improve dust removal efficiency. This is mainly due to the limitations of the conventional transmission methods used: gear drives, chain drives, and belt drives. Gears experience accelerated fatigue pitting or tooth breakage at high speeds; chains experience increased centrifugal force at high speeds, making them prone to poor meshing with the sprockets, resulting in skipped teeth or even chain detachment, leading to power interruption or equipment damage; belts are prone to slippage on the pulleys at high speeds, causing a decrease in transmission efficiency, while friction generates a large amount of heat, accelerating belt aging, cracking, or breakage. Therefore, this invention adopts a friction wheel transmission method: the drive motor II rotates at high speed, driving the active friction wheel to rotate, which in turn drives the drum screen to rotate through friction, while the driven friction wheel provides support and follow-up. The friction wheel drive of this invention is not sensitive to rotational speed, allowing the motor to operate stably at higher speeds, thus enabling the drum screen to achieve higher speeds. The straw is thoroughly tumbled and tossed within the high-speed rotating drum screen, resulting in more thorough separation of dust and straw and significantly improving the secondary dust removal effect.

[0017] 4. The dust removal mechanism of this invention also has anti-clogging and overload protection functions. When too much straw accumulates in the drum screen or foreign objects get stuck, the active friction wheel and the drum screen can slide relative to each other, automatically cutting off the overload transmission path, avoiding motor stalling, thereby effectively preventing motor burnout and significantly improving motor service life.

[0018] 5. The dust removal mechanism of the present invention also has the advantages of simplified structure and convenient maintenance. The dust removal mechanism of the present invention eliminates complex transmission components such as chains, reduces the installation accuracy requirements, and daily maintenance only requires checking the wear of friction wheels, resulting in low maintenance costs and convenient replacement.

[0019] 6. This invention uses gears and multiple belts to link all the rotating shafts of the conveying mechanism and the dust removal mechanism. The whole machine has a compact structure and a simplified and efficient transmission system. The external power source only needs to drive the transmission shaft III to rotate, so that all functional modules can work together to achieve automated continuous operation from collection to discharge. The operation process is smooth and reliable, and it has the outstanding advantages of high adaptability, high cleanliness, low failure rate and easy maintenance. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the structure of a biomimetic straw collection and dust removal device according to the present invention; Figure 2 This is a front view of a biomimetic straw collection and dust removal device according to the present invention; Figure 3 For the present invention Figure 2 A cross-sectional view along direction A. Figure 4 For the present invention Figure 2 Sectional view along line B in the middle; Figure 5 This is a schematic diagram of the structure of the housing described in this invention. Figure 1 ; Figure 6 This is a schematic diagram of the structure of the housing described in this invention. Figure 2 ; Figure 7 This is a schematic diagram of the structure of the housing described in this invention. Figure 3 ; Figure 8 This is a schematic diagram of the structure of the bionic robotic hand described in this invention. Figure 1 ; Figure 9 This is a schematic diagram of the structure of the bionic robotic hand described in this invention. Figure 2 ; Figure 10 This is a schematic diagram of the conveying mechanism and dust removal mechanism described in this invention; Figure 11 This is a right view of the conveying mechanism described in this invention; Figure 12 This is a top view of the conveying mechanism described in this invention; Figure 13 This is a schematic diagram of the dust removal mechanism described in this invention; Figure 14 This is a schematic diagram of the dust removal mechanism of the present invention when a baffle is provided; Figure 15 This is a right view of the dust removal mechanism of the present invention with a baffle. In the diagram: 1-shell; 2-collection mechanism; 3-conveying mechanism; 4-dust removal mechanism; 11-Feed ramp; 12-Discharge port; 21-Mounting plate; 22-Fixed shaft I; 23-Rotating wheel; 24-Fixed shaft II; 25-Rockstick; 26-Connecting shaft; 27-Crab arm; 28-Motor I; 31-Conveyor belt I; 32-Conveyor belt II; 33-Drive shaft I; 34-Drive shaft II; 35-Drive shaft III; 36-Drive shaft IV; 37-Drive shaft V; 38-Belt I; 39-Belt II; 311-Tensioning shaft; 321-Brush head; 41-Soil removal hood; 42-Material conveying bin; 43-Material receiving chamber; 44-Drum screen; 45-Screw conveyor shaft A; 46-Screw conveyor shaft B; 47-Fan; 471-Baffle; 481-Support plate; 482-Bearing seat; 483-Motor II; 484-Driving friction wheel; 485-Driven friction wheel; 451-Belt III; 452-Belt IV. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.

[0022] I. Detailed Implementation Method 1, see [link / reference] Figure 1-15 This embodiment describes a biomimetic straw collection and dust removal device, which includes a housing 1, a collection mechanism 2, a conveying mechanism 3, and a dust removal mechanism 4. The housing 1 has a feed inlet on one side and a discharge outlet 12 on the other side. The housing 1 is provided with a feed ramp 11 extending outward from the feed inlet. See attached document Figure 8 and 9The collecting mechanism 2 includes bionic robotic arms symmetrically arranged on both sides of the feeding ramp 11 with the feeding direction as the axis. Each bionic robotic arm includes a mounting plate 21, a fixed shaft I 22, a rotating wheel 23, a fixed shaft II 24, a rocker arm 25, a connecting shaft 26, a crab arm 27, and a motor I 28. The mounting plate 21 is inclined and parallel to the feeding ramp 11 and connected to the housing 1. The fixed shaft I 22 and the rotating wheel 23 are arranged vertically along the inclined direction of the mounting plate 21. The fixed shaft I 22 is perpendicularly connected to the top surface of the mounting plate 21, serving a limiting function. The rotating wheel 23 is rotatably connected to the mounting plate 21. The fixed shaft II 24 is perpendicularly connected to the top surface of the rotating wheel 23, and their axes are parallel to each other. That is, the fixed shaft II 24 and the rotating wheel 23 are not coaxial, and the fixed shaft II 24 is eccentrically set relative to the rotating wheel 23. The crab arm 27 is rotatably connected to the fixed shaft II 24. One end of the rocker arm 25 is rotatably connected to the fixed shaft I 22, and the other end is hinged to the top of the crab arm 27 through the connecting shaft 26. The bottom end of the crab arm 27 is located directly above the feeding ramp 11. The motor I 28 is connected to the bottom surface of the mounting plate 21 and is used to drive the rotating wheel 23 to rotate, thereby driving the fixed shaft II 24 to drive the crab arm 27 to swing back and forth on the top surface of the feeding ramp 11 to realize the gathering action. The connection between the motor I 28 and the bottom surface of the mounting plate 21 can avoid interference with the movement of the crab arm 27 located on the top surface of the mounting plate 21.

[0023] The conveying mechanism 3 is installed inside the housing 1 and connected to an external power source. Power is provided by the external power source to convey the material entering from the feeding ramp 11 to the dust removal mechanism 4. The dust removal mechanism 4 is installed inside the housing 1 and connected to an external power source. Power is provided by the external power source to remove dust from the material, which is then output through the discharge port 12.

[0024] See attached document Figure 11 Preferably, the conveying mechanism 3 includes a conveyor belt I 31, a conveyor belt II 32, and drive shafts I 33, II 34, III 35, IV 36, and V 37, all rotatably connected to the housing 1. The conveyor belt I 31 cooperates with the drive shafts I 33, II 34, and III 35. One end of the conveyor belt I 31 is located at the top of the feeding ramp 11, and the other end is located at the top of the dust removal mechanism 4. The conveyor belt I 31 includes a planar section and an ascending section along the feeding direction. The drive shaft I 33 is located at the starting point of the planar section, the drive shaft II 34 is located at the intersection of the planar section and the ascending section, and the drive shaft III 35 is located at the end point of the ascending section. The conveyor belt II 32 cooperates with the drive shafts IV 36 and V 37, is arranged directly above the ascending section and is parallel to the ascending section. Multiple rows of brush heads 321 are uniformly fixed on the surface of the conveyor belt II 32. An external power source drives the drive shafts I 33 and IV 36 to rotate.

[0025] See attached document Figure 12Preferably, one end of the drive shaft III35 is connected to the drive shaft IV36 via a gear, with the two rotating in opposite directions. The other end is connected to the drive shaft I33 and the drive shaft II34 via a belt I38. The end of the drive shaft IV36 connected to the drive shaft III35 is also connected to the drive shaft V37 via a belt II39. An external power source drives the drive shaft I33 to rotate, which in turn drives the drive shaft II34 and the drive shaft III35 to rotate via the belt I38. The drive shaft III35 drives the drive shaft IV36 to rotate via a gear, and the drive shaft IV36 drives the drive shaft V37 to rotate via the belt II39.

[0026] Preferably, the conveying mechanism 3 further includes a pair of tensioning shafts 311 symmetrically arranged with the feeding direction as the axis. The pair of tensioning shafts 311 are parallel to the transmission shaft II 34. The ends of the pair of tensioning shafts 311 that are axially opposite are rotatably connected to the housing 1. The ends are radially connected to the top surface of the conveyor belt I 31 at the intersection of the planar section and the rising section. The tensioning shaft 311 near the belt I 38 extends toward the belt I 38 and is provided with a shaft segment I. The shaft segment I is radially connected to the top surface of the belt I 38.

[0027] See attached document Figure 13 Preferably, the dust removal mechanism 4 includes a dust removal hood 41, a material conveying bin 42, a material receiving chamber 43, a drum screen 44, a screw conveyor shaft A 45, a screw conveyor shaft B 46, a fan 47, a support plate 481, a bearing seat 482, a motor II 483, and an active friction wheel 484. The soil removal hood 41 has an opening in the radial direction facing the conveying mechanism 3 for receiving materials; the soil removal hood 41 has an opening for screening soil; the soil removal hood 41 is located inside the shell 1, with one end connected to the shell 1 and the other end connected to the material conveying bin 42. The material conveying bin 42 is connected to the shell 1 and is inclined downward in a direction away from the axis of the soil removal hood 41; The material receiving chamber 43 is installed inside the housing 1 and is connected to the discharge port 12; One end of the drum screen 44 is connected to the material conveying bin 42, and the other end is connected to the material receiving chamber 43. The drum screen 44 is inclined downward in a direction away from the material conveying bin 42. The spiral conveyor shaft A45 is coaxial with the soil removal cover 41, one end of which is rotatably connected to the shell 1, and the other end is rotatably connected to the material conveying bin 42; The screw conveyor shaft B46 is parallel to the screw conveyor shaft A45 and is arranged opposite to the screw conveyor shaft A45 in the material conveying bin 42 along the inclined direction of the material conveying bin 42. One end of the screw conveyor shaft B46 is rotatably connected to the material conveying bin 42, and the other end faces the inside of the drum screen 44. The fan 47 is located inside the material receiving chamber 43 and is parallel to the screw conveyor shaft A45; The support plate 481 is located below the drum screen 44 and is connected to the inner wall of the housing 1. The support plate 481 has an opening in the longitudinal direction facing the drum screen 44 for dust to fall off. The bearing seat 482 and the motor II 483 are both mounted on the support plate 481. The drum screen 44 is mounted inside the bearing seat 482. The active friction wheel 484 is in frictional connection with the outer wall of the drum screen 44. The motor II 483 drives the active friction wheel 484 to rotate, thereby driving the drum screen 44 to rotate. The spiral blades of the spiral conveyor shafts A45 and B46 rotate in opposite directions. One end of the spiral conveyor shaft A45 is connected to the spiral conveyor shaft B46 via belt III 451, and the other end is connected to the fan 47 via belt IV 452. (Refer to the attached document.) Figure 10 One end of the spiral conveyor shaft A45, which is connected to the fan 47, is also connected to the transmission shaft III35 via gears. An external power source drives the transmission shaft III35 to rotate, thereby causing the spiral conveyor shaft A45 to rotate.

[0028] See attached document Figure 14 Preferably, the dust removal mechanism 4 further includes a baffle 471, which is located between the dust removal hood 41 and the drum screen 44 and is connected to the housing 1. When the dust removal hood 41 and the drum screen 44 are set close to each other, the baffle 471 is set between them to prevent the dust falling from the dust removal hood 41 from entering the drum screen 44.

[0029] See attached document Figure 13 Preferably, the dust removal mechanism 4 further includes a driven friction wheel 485, which is arranged opposite to the active friction wheel 484 along the axis of the drum screen 44. The driven friction wheel 485 is mounted on the top surface of the support plate 481 and is in frictional connection with the outer wall of the drum screen 44.

[0030] See attached document Figure 15 Preferably, the motor II 483, the active friction wheel 484 and the driven friction wheel 485 are all a pair, and are arranged symmetrically with the projection of the axis of the drum screen 44 onto the top surface of the support plate 481 as the axis.

[0031] Preferably, the inclination angle of the feeding ramp 11 is 5° to 15°; the inclination angle of the ascending section of the conveyor belt I 31 is 50° to 70°; the inclination angle of the material conveying bin 42 is 30° to 45°; and the inclination angle of the drum screen 44 is 6° to 10°. Based on the physical properties of straw, the preferred inclination angle improves the efficiency of straw collection, conveying, and dust removal.

[0032] Preferably, the external power source is the power take-off shaft of the tractor.

[0033] The working principle of the biomimetic straw gathering and dust removal device of the present invention is as follows: When in use, the device is first assembled with a tractor. Power is input through the power output shaft of the tractor to drive the transmission shaft I33 to rotate. Under the action of gears, belts I38, II39, III451 and IV452, the transmission shafts I33, II34, III35, IV36, V37, screw conveyor shaft A45, screw conveyor shaft B46 and fan 47 rotate simultaneously. Then, the motor I28 is started to drive the rotating wheel 23 to rotate back and forth, which drives the fixed shaft II24 to drive the crab arm 27 to move. Under the action of the fixed shaft I22, rocker arm 25 and connecting shaft 26, the crab arm 27 swings back and forth above the feeding ramp 11. The motor II483 is started to drive the active friction wheel 484 to rotate, which drives the drum screen 44 to rotate, thus completing the start-up and operation of all mechanisms of the device. Then the drive unit moves forward. During the forward movement, the straw gathers on the feeding ramp 11. The crab arm 27 swings back and forth, collecting the straw onto the conveyor belt I 31. The straw first passes through the flat section of the conveyor belt I 31, and then, with the assistance of the brush head 321 on the conveyor belt II 32, the straw is collected upwards from between the two conveyor belts and enters the soil removal hood 41 through the opening. Under the action of the screw conveyor shaft A 45, dust and other impurities in the straw fall from the opening on the soil removal hood 41, completing the initial dust removal and transporting the straw to the material conveying bin 42. Under the action of the screw conveyor shaft B 46, it is transported to the drum screen 44 for secondary dust removal. The drum screen 44 is set at an incline. During the dust removal process, the straw gradually moves towards the material receiving chamber 43. After entering the material receiving chamber 43, it is blown out along the discharge port 12 under the action of the fan 47 and enters the next process for baling.

[0034] The embodiments of the present invention disclosed above are merely illustrative of the invention. These embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. A straw bionic raking and dust removing device, characterized in that, It includes a housing (1), a collection mechanism (2), a conveying mechanism (3), and a dust removal mechanism (4); The housing (1) has a feed inlet on one side and a discharge outlet (12) on the other side. The housing (1) is provided with a feed ramp (11) extending outward from the feed inlet. The collecting mechanism (2) includes bionic robotic arms symmetrically arranged on both sides of the feeding ramp (11) with the feeding direction as the axis. The bionic robotic arms include a mounting plate (21), a fixed shaft I (22), a rotating wheel (23), a fixed shaft II (24), a rocker arm (25), a connecting shaft (26), a crab arm (27), and a motor I (28). The mounting plate (21) is inclined and parallel to the feeding ramp (11) and connected to the housing (1). The fixed shaft I (22) and the rotating wheel (23) are arranged vertically along the inclined direction of the mounting plate (21). The fixed shaft I (22) and the mounting plate (24) are connected vertically. The top surface of 1) is vertically connected, the wheel (23) is rotatably connected to the mounting plate (21), the fixed shaft II (24) is vertically connected to the top surface of the wheel (23), and their axes are parallel to each other, the crab arm (27) is rotatably connected to the fixed shaft II (24), one end of the rocker arm (25) is rotatably connected to the fixed shaft I (22), and the other end is hinged to the top of the crab arm (27) through the connecting shaft (26), the bottom end of the crab arm (27) is located directly above the feeding ramp (11), and the motor I (28) is connected to the bottom surface of the mounting plate (21) to drive the wheel (23) to rotate; The conveying mechanism (3) is installed inside the housing (1) and connected to an external power source to provide power, conveying the material entering from the feed ramp (11) to the dust removal mechanism (4); The dust removal mechanism (4) is installed inside the housing (1) and connected to an external power source to provide power. After removing dust from the material, it is output through the discharge port (12).

2. The straw bionic raking and dust removing device according to claim 1, characterized in that, The conveying mechanism (3) includes conveyor belt I (31), conveyor belt II (32), and drive shafts I (33), II (34), III (35), IV (36), and V (37), all of which are rotatably connected to the housing (1). The conveyor belt I (31) cooperates with the drive shafts I (33), II (34), and III (35). One end of the conveyor belt I (31) is located at the top of the feed ramp (11), and the other end is located at the top of the dust removal mechanism (4). The conveyor belt I (31) includes a planar section and an ascending section along the feeding direction. The drive shaft I (33) is located at the starting point of the planar section, the drive shaft II (34) is located at the intersection of the planar section and the ascending section, and the drive shaft III (35) is located at the ending point of the ascending section. The conveyor belt II (32) cooperates with the drive shaft IV (36) and the drive shaft V (37) and is arranged parallel to the top surface of the ascending section. A brush head (321) is fixed on the conveyor belt II (32), and an external power source drives the drive shaft I (33) and the drive shaft IV (36) to rotate.

3. The straw bionic raking and dust removing device according to claim 2, characterized in that, One end of the drive shaft Ⅲ (35) is connected to the drive shaft Ⅳ (36) via a gear, and the other end is connected to the drive shaft Ⅰ (33) and the drive shaft Ⅱ (34) via a belt Ⅰ (38). An external power source drives the drive shaft Ⅰ (33) to rotate, which in turn drives the drive shaft Ⅲ (35) to rotate via the belt Ⅰ (38). The drive shaft Ⅲ (35) drives the drive shaft Ⅳ (36) to rotate via a gear. The end of the drive shaft Ⅳ (36) that is connected to the drive shaft Ⅲ (35) is also connected to the drive shaft Ⅴ (37) via the belt Ⅱ (39).

4. The straw bionic raking and dust removing device according to claim 3, characterized in that, The conveying mechanism (3) further includes a tensioning shaft (311) symmetrically arranged with the feeding direction as the axis. The tensioning shaft (311) is parallel to the transmission shaft II (34), axially rotatably connected to the housing (1), and radially connected to the top surface of the conveyor belt I (31) at the intersection of the planar section and the rising section. The tensioning shaft (311) near the belt I (38) extends toward the belt I (38) and is provided with a shaft segment I. The shaft segment I is radially connected to the top surface of the belt I (38).

5. The straw bionic raking and dust removing device according to claim 2, characterized in that, The inclination angle of the feed ramp (11) is 5° to 15°; the inclination angle of the rising section of the conveyor belt I (31) is 50° to 70°.

6. The straw bionic raking and dust removing device according to claim 1, characterized in that, The dust removal mechanism (4) includes a soil removal hood (41), a material conveying bin (42), a material receiving chamber (43), a drum screen (44), a screw conveyor shaft A (45), a screw conveyor shaft B (46), a fan (47), a support plate (481), a bearing seat (482), a motor II (483), and an active friction wheel (484). The soil removal hood (41) has an opening in the radial direction facing the conveying mechanism (3) for receiving materials. The soil removal hood (41) is located inside the shell (1), with one end connected to the shell (1) and the other end connected to the material conveying bin (42). The material conveying bin (42) is connected to the shell (1) and is inclined downward in a direction away from the axis of the soil removal hood (41); The material receiving chamber (43) is installed inside the housing (1) and is connected to the discharge port (12); One end of the drum screen (44) is connected to the material conveying bin (42), and the other end is connected to the material receiving chamber (43). The drum screen (44) is inclined downward in a direction away from the material conveying bin (42). The spiral conveyor shaft A (45) is coaxial with the soil removal cover (41), one end of which is rotatably connected to the shell (1), and the other end is rotatably connected to the material conveying bin (42); The spiral conveyor shaft B (46) is parallel to the spiral conveyor shaft A (45) and is arranged opposite to the spiral conveyor shaft A (45) along the inclined direction of the material conveying bin (42). One end of the spiral conveyor shaft B (46) is rotatably connected to the material conveying bin (42), and the other end faces the inside of the drum screen (44). The fan (47) is located inside the material receiving chamber (43) and is parallel to the screw conveyor shaft A (45); The support plate (481) is located below the drum screen (44) and is connected to the inner wall of the shell (1). The bearing seat (482) and motor II (483) are both mounted on the support plate (481). The drum screen (44) is mounted inside the bearing seat (482). The active friction wheel (484) is frictionally connected to the outer wall of the drum screen (44). The motor II (483) drives the active friction wheel (484) to rotate. The spiral blades of the spiral conveyor shaft A (45) and the spiral conveyor shaft B (46) rotate in opposite directions. One end of the spiral conveyor shaft A (45) is connected to the spiral conveyor shaft B (46) via belt III (451), and the other end is connected to the fan (47) via belt IV (452). The external power source drives the spiral conveyor shaft A (45) to rotate.

7. The straw biomimetic gathering and dust removal device according to claim 6, characterized in that, The dust removal mechanism (4) also includes a baffle (471), which is located between the soil removal cover (41) and the drum screen (44) and is connected to the shell (1).

8. The straw biomimetic gathering and dust removal device according to claim 6, characterized in that, The dust removal mechanism (4) also includes a driven friction wheel (485), which is arranged opposite to the active friction wheel (484) along the axis of the drum screen (44). The driven friction wheel (485) is installed on the top surface of the support plate (481) and is in frictional connection with the outer wall of the drum screen (44).

9. A straw biomimetic gathering and dust removal device according to claim 8, characterized in that, The motor II (483), the active friction wheel (484), and the driven friction wheel (485) are all a pair, and are arranged symmetrically with the projection of the axis of the drum screen (44) onto the top surface of the support plate (481) as the axis.

10. A straw biomimetic gathering and dust removal device according to claim 6, characterized in that, The material conveying bin (42) is inclined at an angle of 30° to 45°; the drum screen (44) is inclined at an angle of 6° to 10°.

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