Self-propelled soybean plot threshing machine

Abstract

The invention discloses a self-propelled soybean plot thresher, and belongs to the technical field of soybean threshers, the self-propelled soybean plot thresher comprises a pull-out mechanism for pulling out soybean plants and shaking off soil on the soybean plants, and the pull-out mechanism is provided with a lifting mechanism for lifting the soybean plants with soil removed and a separating mechanism for separating soybeans from the plants; the pulling-out mechanism can automatically pull out soybean plants in soil, soil carried by the soybean plants is automatically removed in cooperation with the soil shaking module, then the soybean plants are crushed through the separating mechanism, soybeans are separated from the plants, and then the soybeans are independently collected through the characteristics that the surfaces of the soybeans are smooth and spherical. The automation degree is high, and the continuity is good; the separating mechanism can drive the threshing machine to move, soybean plants are pulled out, soil is removed, the soybean plants are crushed, and the soybeans and the plants are separated and collected while the threshing machine moves, and self-walking is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of soybean threshers, in particular to a self-propelled soybean plot thresher. Background Art

[0002] Soybean plot thresher is a kind of agricultural machinery specially used for threshing soybean kernels, usually used in the soybean harvest season. This kind of thresher helps farmers improve threshing efficiency and reduce the burden of manual labor through mechanized operation. The working principle of soybean plot thresher mainly relies on the separation of soybean kernels from pods or straws through rotating screens, blades or other physical methods.

[0003] Depending on the type of grain crops, there are different types of threshers, such as rice threshers used for rice threshing; self-propelled agricultural machinery is a new type of machinery that can walk in the field and harvest at the same time while walking, greatly improving work efficiency.

[0004] The soybean plot thresher in the prior art is usually unable to automatically harvest the soybean plants and remove the soil and other impurities therein to separate the soybeans, and the separation effect is average. Summary of the invention

[0005] In view of the above technical problems, the technical solution adopted by the present invention is: A self-propelled soybean plot thresher, comprising a pulling mechanism for pulling out soybean plants and shaking off the soil thereon, the pulling mechanism comprising a frame, the pulling mechanism being provided with a lifting mechanism for lifting the soybean plants after the soil is removed and a separation mechanism for separating the soybeans from the plants, the lifting mechanism comprising an upper conveying roller rotatably mounted on the frame, the separation mechanism comprising a hopper fixedly mounted on the frame; The pulling mechanism includes a lifting shaft rotatably mounted on a frame, five lifting shovels are arranged on the lifting shaft, multiple groups of inclined grooves are arranged on the lifting shovels, the openings of the inclined grooves gradually decrease from inside to outside, a pulling groove is arranged on the lifting shovel, a lower transmission roller is rotatably mounted on the frame, and a soil shaking module is arranged on the frame; The separation mechanism includes a traveling frame, on which a driving roller, a bottom roller and an intermediate roller are installed, a lower transmission belt is wound around the bottom roller, the intermediate roller and the driving roller, the upper surface of the lower transmission belt forms an angle of twenty degrees with the horizontal plane, a bottom gear is fixedly installed on the driving roller, a collecting bag for collecting soybeans is arranged below the frame, and the soybeans leaving the lower transmission belt enter the collecting bag.

[0006] Furthermore, the pulling mechanism also includes a lifting gear and a front end gear fixedly installed at the end of the lifting shaft, two driven wheels rotatably installed on the frame, a scraper fixedly installed on the frame, two transmission rollers rotatably installed on the frame, a transmission gear fixedly installed on the transmission roller close to the lifting shaft, an upper gear fixedly installed on the transmission roller located above the lower transmission roller, a lower gear fixedly installed on the lower transmission roller, a vertical transmission belt wrapped around the lower gear and the upper gear, and a front end transmission belt wrapped around the front end gear and the transmission gear.

[0007] Furthermore, a material unloading wheel is rotatably mounted on the frame, a plurality of material unloading levers are arranged on the material unloading wheel, a shifting gear is fixedly mounted on the material unloading wheel, a transfer gear is rotatably mounted on the frame, an oblique transmission belt is wound around the transfer gear and the lifting gear, and the transfer gear is meshed with the shifting gear.

[0008] Furthermore, the soil shaking module includes a leak hole vibration belt wrapped around two driving rollers, a plurality of holes are arranged on the leak hole vibration belt, a friction wheel is fixedly installed on the driving roller, two groove wheels are rotatably installed on the frame, a friction belt is wrapped around the two groove wheels, and a friction transmission is formed between the outer side of the friction belt and the friction wheel, an inner protrusion block is arranged on the inner side of the friction belt, five top material blocks are slidably installed in the frame, an upper top material block is fixedly installed on the top material block, and a tension spring is arranged between the top material block and the frame.

[0009] The lower transmission roller drives the lower gear to rotate, and drives the upper gear and transmission roller to rotate through the vertical transmission belt, thereby driving the leakage hole vibration belt and transmission gear to rotate, and drives the front end gear and lifting shaft to rotate through the front end transmission belt, and the lifting shaft drives the lifting gear to rotate, and drives the transfer gear to rotate through the oblique transmission belt, thereby driving the pull gear and the unloading wheel to rotate. The rotation directions of the unloading wheel and the lifting shaft are opposite. The rotation of the lifting shaft pulls the soybean plant upward through the lifting shovel. The soybean plant enters from the inclined groove and is finally stuck in the pulling groove. As the lifting shovel rotates, the soybean plant is pulled out of the soil through the pulling groove. The rotation of the unloading wheel drives the unloading pull rod to pull off the soybean plant on the lifting shovel. The soybean plant falls onto the upper surface of the scraper and finally reaches the leakage hole vibration belt.

[0010] The rotation of the transmission roller will also drive the friction belt to rotate through the friction wheel, and the friction belt will drive the inner protrusion block to move. When the inner protrusion block contacts the arc surface on the top material block, it will drive the top material block to descend, and the tension spring will be stretched. Then, when the inner protrusion block is separated from the top material block, the tension spring rebounds, causing the top material block and the upper top block to rise rapidly, and the upper top block is used to hit the leakage hole vibration belt. This reciprocating process causes the upper top block to continuously hit the leakage hole vibration belt, and the ash remaining on the soybean plants will fall through the holes on the leakage hole vibration belt. The groove wheel is provided with grooves so that the inner protrusion block can pass through, and then the leakage hole vibration belt transports the soybean plants after the soil is removed to the lifting belt.

[0011] Furthermore, the lifting mechanism includes two turning wheels rotatably mounted on the frame, a lifting belt is wrapped around the upper conveying roller, the lower transmission roller and the two turning wheels, a plurality of lifting plates are arranged on the lifting belt, a motor is fixedly mounted under the frame, a motor gear is fixedly mounted on the motor shaft of the motor, a top gear is fixedly mounted on the upper conveying roller, inner and outer toothed belts are wrapped around the top gear and the bottom gear, teeth are arranged on the inner and outer sides of the inner and outer toothed belts, and the motor gear is meshed with the outer teeth of the inner and outer toothed belts.

[0012] The motor controls the motor gear to rotate, thereby driving the inner and outer toothed belts to rotate, thereby driving the top gear, upper conveyor roller and bottom gear to rotate. The upper conveyor roller rotates to drive the lower transmission roller and the lower gear to rotate through the lifting belt. The lifting belt lifts the de-soiled soybean plants on the lifting belt through the lifting plate and transports the soybean plants to the hopper.

[0013] Furthermore, the separation mechanism also includes two intermediate wheels rotatably mounted on the traveling frame, two driving wheels rotatably mounted on the traveling frame, traveling gears are fixedly mounted on the driving wheels, and a docking gear is fixedly mounted on the driving roller, and the docking gear is meshed with the traveling gear.

[0014] Furthermore, an outer cylinder is fixedly installed on the walking frame, the outer cylinder is fixedly installed on the hopper, a plurality of driving teeth are arranged on the transmission belt below, an inner crushing column is rotatably installed in the outer cylinder, a central gear is fixedly installed at the bottom of the inner crushing column, a bottom bevel gear is fixedly installed on the central gear, and the bottom bevel gear is meshed with the driving teeth.

[0015] Furthermore, a turntable is rotatably installed on the hopper, a material drop hole is provided on the turntable, a turntable gear is fixedly installed under the turntable, a transmission column is rotatably installed on the outer cylinder, an upper column gear and a lower column gear are fixedly installed on the transmission column, the upper column gear is meshed with the turntable gear, and a lower transmission belt is wrapped around the lower column gear and the center gear.

[0016] The rotation of the bottom gear drives the bottom roller to rotate, thereby driving the lower transmission belt to rotate. The lower transmission belt drives the active roller mixed docking gear to rotate, thereby driving the walking gear and the active wheel to rotate, so that the thresher moves. When the lower transmission belt rotates, the bottom bevel gear, the inner crushing column and the center gear are driven to rotate through the driving teeth. The center gear drives the lower column gear, the transmission column and the upper column gear to rotate through the lower transmission belt, thereby driving the turntable gear and the turntable to rotate. The soybean plants poured into the hopper will fall onto the turntable. When the drop hole moves to the hopper outlet, the soybean plants will fall into the outer cylinder, thereby realizing intermittent drop. There is a gap between the outer cylinder and the inner crushing column to allow the plants to pass through. The rotation of the inner crushing column, combined with the extrusion of the inner crushing column and the outer cylinder, crushes the plants, causing the soybean particles to detach. The soybeans and the crushed plants then fall onto the lower transmission belt, which moves upward. The soybeans have a smooth and spherical surface and, under the action of gravity, roll into the collection bag under the frame as the lower transmission belt inclines with the horizontal plane, while the crushed plants are discharged backwards along with the rotating lower transmission belt. Since the crushed plants are light in weight and have a large surface area, they will not fall due to gravity in the opposite direction of the movement of the lower transmission belt, thereby enabling the thresher to collect the soybeans and discharge the crushed plants backwards while walking automatically.

[0017] Compared with the prior art, the present invention has the following beneficial effects: (1) The extraction mechanism provided in the present invention can automatically extract the soybean plants from the soil, and automatically remove the soil carried by the soybean plants in cooperation with the soil shaking module, and then the soybean plants are crushed by the separation mechanism to separate the soybeans from the plants, and then the soybeans are collected separately by virtue of the smooth and spherical surface characteristics of the soybeans, with a high degree of automation and good continuity; (2) When the leak hole vibration belt provided in the present invention is conveying the soybean plants with soil, it synchronously drives the friction belt to move, and continuously pushes the top material block downward through the inner protrusion block, so that the upper top block continuously hits the leak hole vibration belt, and the soil is automatically removed, and the soil removal effect is good; (3) The separation mechanism provided in the present invention can move with the thresher, and simultaneously perform the actions of extracting the soybean plants, removing the soil, crushing the soybean plants, and separating and collecting the soybeans from the plants, so as to realize self-propelled movement; (4) The turntable provided in the present invention rotates synchronously with the inner crushing column, so that the soybean plants in the hopper intermittently fall into the outer cylinder, so as to realize intermittent feeding and prevent blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 Schematic diagram of the extraction mechanism structure of the present invention Figure 1 .

[0020] Figure 3 Schematic diagram of the extraction mechanism structure of the present invention Figure 2 .

[0021] Figure 4 It is a schematic diagram of the soil shaking terminal structure of the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of the lifting shovel of the present invention.

[0023] Figure 6 It is a schematic diagram of the lifting mechanism structure of the present invention.

[0024] Figure 7 Schematic diagram of the separation mechanism structure of the present invention Figure 1 .

[0025] Figure 8 Schematic diagram of the separation mechanism structure of the present invention Figure 2 .

[0026] Fig. 9 Schematic diagram of the separation mechanism structure of the present invention Figure 3 .

[0027] Fig.10 Schematic diagram of the separation mechanism structure of the present invention Figure 4 .

[0028] Figure numbers: 101-frame; 102-driven wheel; 103-lifting shaft; 104-lifting shovel; 1041-inclined groove; 1042-pulling groove; 105-lifting gear; 106-oblique transmission belt; 107-unloading wheel; 108-unloading lever; 109-shift gear; 110-transfer gear; 111-leak hole vibration belt; 112-transmission roller; 113-transmission gear; 114-front end transmission belt; 115-front end gear; 116-upper gear; 117-lower transmission roller; 118-lower gear; 119-vertical transmission belt; 120-friction wheel; 121-top block; 122-upper top block; 123-tension spring; 124-groove wheel; 125-friction belt; 126-inner protrusion block; 127-scraper; 201- Upper conveying roller; 202-top gear; 203-lifting belt; 204-lifting plate; 205-inside and outside toothed belts; 206-motor; 207-motor gear; 208-turning wheel; 301-traveling frame; 302-middle wheel; 303-driving wheel; 304-traveling gear; 305-outer cylinder; 306-hopper; 307-bottom roller; 308-driving roller; 309-docking gear; 310-middle roller; 311-bottom gear; 312-turntable; 313-inner crushing column; 314-center gear; 315-lower column gear; 316-lower transmission belt; 317-transmission column; 318-upper column gear; 319-turntable gear; 320-dropping hole; 321-lower transmission belt; 322-driving tooth; 323-bottom bevel gear. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0030] Example: Reference Figure 1-Figure 10 A self-propelled soybean plot thresher includes a pulling mechanism for pulling out soybean plants and shaking off the soil thereon, the pulling mechanism includes a frame 101, the pulling mechanism is provided with a lifting mechanism for lifting the soybean plants after the soil is removed and a separation mechanism for separating the soybeans from the plants, the lifting mechanism includes an upper conveying roller 201, the upper conveying roller 201 is rotatably mounted on the frame 101, and the separation mechanism includes a hopper 306, the hopper 306 is fixedly mounted on the frame 101; The pulling mechanism includes a lifting shaft 103 rotatably mounted on the frame 101, five lifting shovels 104 are arranged on the lifting shaft 103, multiple groups of inclined grooves 1041 are arranged on the lifting shovel 104, the opening of the inclined groove 1041 gradually decreases from the inside to the outside, and a pulling groove 1042 is arranged on the lifting shovel 104. A lower transmission roller 117 is rotatably mounted on the frame 101, and a soil shaking module is arranged on the frame 101; The separation mechanism includes a traveling frame 301, on which an active roller 308, a bottom roller 307 and an intermediate roller 310 are installed. A lower transmission belt 321 is wound around the bottom roller 307, the intermediate roller 310 and the active roller 308. The upper surface of the lower transmission belt 321 forms an angle of twenty degrees with the horizontal plane. A bottom gear 311 is fixedly installed on the active roller 308. A collecting bag for collecting soybeans is arranged below the frame body 101, and the soybeans leaving the lower transmission belt 321 enter the collecting bag.

[0031] like Figure 2-Figure 5 As shown, the pulling mechanism also includes a lifting gear 105 and a front end gear 115 fixedly mounted on the end of the lifting shaft 103, two driven wheels 102 are rotatably mounted on the frame 101, a scraper 127 is fixedly mounted on the frame 101, two transmission rollers 112 are rotatably mounted on the frame 101, a transmission gear 113 is fixedly mounted on the transmission roller 112 close to the side of the lifting shaft 103, an upper gear 116 is fixedly mounted on the transmission roller 112 located above the lower transmission roller 117, a lower gear 118 is fixedly mounted on the lower transmission roller 117, a vertical transmission belt 119 is wound around the lower gear 118 and the upper gear 116, and a front end transmission belt 114 is wound around the front end gear 115 and the transmission gear 113.

[0032] like Figure 2-Figure 5 As shown, a material unloading wheel 107 is rotatably mounted on the frame 101, a plurality of material unloading levers 108 are provided on the material unloading wheel 107, a shifting gear 109 is fixedly mounted on the material unloading wheel 107, a transfer gear 110 is rotatably mounted on the frame 101, an oblique transmission belt 106 is wound around the transfer gear 110 and the lifting gear 105, and the transfer gear 110 is meshed with the shifting gear 109.

[0033] like Figure 2-Figure 5 As shown, the soil shaking module includes a leak hole vibration belt 111 wrapped around two driving rollers 112, a plurality of holes are arranged on the leak hole vibration belt 111, a friction wheel 120 is fixedly installed on the driving roller 112, two groove wheels 124 are rotatably installed on the frame 101, a friction belt 125 is wrapped around the two groove wheels 124, a friction transmission is formed between the outer side of the friction belt 125 and the friction wheel 120, an inner protrusion block 126 is arranged on the inner side of the friction belt 125, five top material blocks 121 are slidably installed in the frame 101, an upper top block 122 is fixedly installed on the top material block 121, and a tension spring 123 is arranged between the top material block 121 and the frame 101.

[0034] The lower transmission roller 117 drives the lower gear 118 to rotate, and drives the upper gear 116 and the transmission roller 112 to rotate through the vertical transmission belt 119, thereby driving the leakage hole vibration belt 111 and the transmission gear 113 to rotate, and drives the front end gear 115 and the lifting shaft 103 to rotate through the front end transmission belt 114, and the lifting shaft 103 drives the lifting gear 105 to rotate, and drives the transfer gear 110 to rotate through the oblique transmission belt 106, thereby driving the shifting gear 109 and the unloading wheel 107 to rotate, and the unloading wheel 107 and the lifting shaft 103 drive the lifting gear 105 to rotate. The rotation direction of the lifting shaft 103 is opposite. The lifting shaft 103 rotates to pull the soybean plant upward through the lifting shovel 104. The soybean plant enters from the inclined groove 1041 and is finally stuck in the pulling groove 1042. As the lifting shovel 104 rotates, the soybean plant is pulled out of the soil through the pulling groove 1042. The unloading wheel 107 rotates to drive the unloading lever 108 to pull the soybean plant on the lifting shovel 104. The soybean plant falls onto the upper surface of the scraper 127 and finally reaches the leakage hole vibration belt 111.

[0035] The rotation of the transmission roller 112 will also drive the friction belt 125 to rotate through the friction wheel 120, and the friction belt 125 will drive the inner protrusion block 126 to move. When the inner protrusion block 126 contacts the arc surface on the top material block 121, it will drive the top material block 121 to descend, and the tension spring 123 will be stretched. Then, when the inner protrusion block 126 is separated from the top material block 121, the tension spring 123 rebounds, causing the top material block 121 and the upper top block 122 to rise rapidly, and hit the leakage hole vibration belt 111 through the upper top block 122. In this way, the upper top block 122 continuously hits the leakage hole vibration belt 111, and the ash remaining on the soybean plants will fall through the holes on the leakage hole vibration belt 111. The groove wheel 124 is provided with a groove so that the inner protrusion block 126 can pass through. Then the leakage hole vibration belt 111 transports the soybean plants after the soil is removed to the lifting belt 203.

[0036] like Figure 6As shown, the lifting mechanism includes two turning wheels 208 rotatably mounted on the frame 101, the upper conveying roller 201, the lower transmission roller 117 and the two turning wheels 208 are wrapped with a lifting belt 203, and a plurality of lifting plates 204 are arranged on the lifting belt 203. A motor 206 is fixedly mounted below the frame 101, and a motor gear 207 is fixedly mounted on the motor shaft of the motor 206. A top gear 202 is fixedly mounted on the upper conveying roller 201, and an inner and outer toothed belt 205 is wrapped around the top gear 202 and the bottom gear 311. The inner and outer toothed belts 205 are provided with teeth on the inner and outer sides, and the motor gear 207 is meshed with the outer teeth of the inner and outer toothed belts 205.

[0037] The motor 206 controls the motor gear 207 to rotate, thereby driving the inner and outer toothed belts 205 to rotate, thereby driving the top gear 202, the upper conveying roller 201 and the bottom gear 311 to rotate. The upper conveying roller 201 rotates to drive the lower transmission roller 117 and the lower gear 118 to rotate through the lifting belt 203. The lifting belt 203 lifts the de-soiled soybean plants on the lifting belt 203 through the lifting plate 204, and transports the soybean plants to the hopper 306.

[0038] like Figure 7-10 As shown, the separation mechanism also includes two intermediate wheels 302 rotatably mounted on the traveling frame 301, two driving wheels 303 rotatably mounted on the traveling frame 301, a traveling gear 304 is fixedly mounted on the driving wheel 303, a docking gear 309 is fixedly mounted on the driving roller 308, and the docking gear 309 is meshed with the traveling gear 304.

[0039] like Figure 7-10 As shown, an outer cylinder 305 is fixedly installed on the traveling frame 301, and the outer cylinder 305 is fixedly installed with the hopper 306. A plurality of driving teeth 322 are provided on the lower transmission belt 321. An inner crushing column 313 is rotatably installed in the outer cylinder 305, and a central gear 314 is fixedly installed at the bottom of the inner crushing column 313. A bottom bevel gear 323 is fixedly installed on the central gear 314, and the bottom bevel gear 323 is meshed with the driving teeth 322.

[0040] like Figure 7-10 As shown, a turntable 312 is rotatably mounted on the hopper 306, a material drop hole 320 is provided on the turntable 312, a turntable gear 319 is fixedly mounted below the turntable 312, a transmission column 317 is rotatably mounted on the outer cylinder 305, an upper column gear 318 and a lower column gear 315 are fixedly mounted on the transmission column 317, the upper column gear 318 is meshed with the turntable gear 319, and a lower transmission belt 316 is wound around the lower column gear 315 and the center gear 314.

[0041] The rotation of the bottom gear 311 drives the bottom roller 307 to rotate, thereby driving the lower transmission belt 321 to rotate. The lower transmission belt 321 drives the active roller 308 and the mixed docking gear 309 to rotate, thereby driving the walking gear 304 and the active wheel 303 to rotate, so that the thresher moves. When the lower transmission belt 321 rotates, the bottom bevel gear 323, the inner crushing column 313 and the center gear 314 are driven to rotate through the driving tooth 322. The center gear 314 drives the lower column gear 315, the transmission column 317 and the upper column gear 318 to rotate through the lower transmission belt 316, thereby driving the turntable gear 319 and the turntable 312 to rotate. The soybean plants poured into the hopper 306 will fall onto the turntable 312. When the drop hole 320 moves to the discharge port of the hopper 306, the soybean plants will fall into the outer cylinder 305, thereby realizing intermittent drop. There is a gap between 305 and the inner crushing column 313 to allow plants to pass through. The plants are crushed by the rotation of the inner crushing column 313 and the extrusion of the inner crushing column 313 and the outer cylinder 305, so that the soybean particles are separated. Then the soybeans and the crushed plants fall onto the lower transmission belt 321, and the lower transmission belt 321 moves upward. Since the soybeans have a smooth and spherical surface, under the action of gravity, as the lower transmission belt 321 tilts with the horizontal plane, they roll into the collection bag under the frame 101, and the crushed plants are discharged backwards with the rotating lower transmission belt 321. Since the crushed plants are light in weight and have a large surface area, they will not fall in the opposite direction of the movement of the lower transmission belt 321 due to gravity, thereby realizing that the thresher can automatically move while collecting the soybeans and discharging the crushed plants backwards.

[0042] The working principle of a self-propelled soybean plot thresher disclosed in the present invention is as follows: the motor 206 controls the motor gear 207 to rotate, thereby driving the inner and outer toothed belts 205 to rotate, thereby driving the top gear 202, the upper conveying roller 201 and the bottom gear 311 to rotate, the bottom gear 311 rotates to drive the bottom roller 307 to rotate, thereby driving the lower transmission belt 321 to rotate, the lower transmission belt 321 drives the active roller 308 and the mixed docking gear 309 to rotate, thereby driving the walking gear 304 and the active wheel 303 to rotate, so that the thresher moves, the lower transmission roller 117 drives the lower gear 118 to rotate, and drives the upper gear 116 and the transmission roller 112 to rotate through the vertical transmission belt 119, thereby driving the leakage hole vibration belt 111 and the transmission gear 113 to rotate, and through the front transmission belt 114 drives the front end gear 115 and the lifting shaft 103 to rotate, the lifting shaft 103 drives the lifting gear 105 to rotate, and drives the transfer gear 110 to rotate through the inclined transmission belt 106, thereby driving the shifting gear 109 and the unloading wheel 107 to rotate, the rotation direction of the unloading wheel 107 and the lifting shaft 103 are opposite, the lifting shaft 103 rotates to pull the soybean plant upward through the lifting shovel 104, the soybean plant enters from the inclined groove 1041, and finally gets stuck in the pulling groove 1042, as the lifting shovel 104 rotates, the soybean plant is pulled out of the soil through the pulling groove 1042, the unloading wheel 107 rotates to drive the unloading shifting rod 108 to pull the soybean plant on the lifting shovel 104, the soybean plant falls to the upper surface of the scraper 127, and finally reaches the leakage hole vibration belt 111. The upper conveying roller 201 rotates to drive the lower transmission roller 117 and the lower gear 118 to rotate through the lifting belt 203. The lifting belt 203 lifts the de-soiled soybean plants on the lifting belt 203 through the lifting plate 204, and transports the soybean plants to the hopper 306.When the lower transmission belt 321 rotates, the bottom bevel gear 323, the inner crushing column 313 and the center gear 314 are driven to rotate through the driving teeth 322. The center gear 314 drives the lower column gear 315, the transmission column 317 and the upper column gear 318 to rotate through the lower transmission belt 316, thereby driving the turntable gear 319 and the turntable 312 to rotate. The soybean plants poured into the hopper 306 will fall onto the turntable 312. When the drop hole 320 moves to the discharge port of the hopper 306, the soybean plants will fall into the outer cylinder 305, thereby realizing intermittent drop. A gap is provided between the outer cylinder 305 and the inner crushing column 313 to allow the plants to pass through. Through the rotation of the inner crushing column 313, the inner crushing column 31 3 and the outer cylinder 305 are squeezed to crush the plants, so that the soybean particles are separated, and then the soybeans and the crushed plants fall onto the lower transmission belt 321, and the lower transmission belt 321 moves toward a higher place. Because the soybeans have a smooth surface and are spherical, under the action of gravity, as the lower transmission belt 321 is inclined with the horizontal plane, they roll into the collection bag below the frame 101, and the crushed plants are discharged backwards along with the rotating lower transmission belt 321. Since the crushed plants are light in weight and have a large surface area, they will not fall in the opposite direction of the movement of the lower transmission belt 321 due to gravity, thereby realizing that the thresher automatically moves while collecting the soybeans and discharging the crushed plants backwards.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-propelled soybean plot thresher, comprising a pulling mechanism for pulling out soybean plants and shaking off the soil thereon, characterized in that: The extraction mechanism comprises a frame (101), and a lifting mechanism for lifting the soybean plants after the soil is removed and a separation mechanism for separating the soybeans from the plants are provided on the extraction mechanism, the lifting mechanism comprising an upper conveying roller (201), the upper conveying roller (201) being rotatably mounted on the frame (101), and the separation mechanism comprising a hopper (306), the hopper (306) being fixedly mounted on the frame (101); The pulling mechanism comprises a lifting shaft (103) rotatably mounted on a frame (101), five lifting shovels (104) are arranged on the lifting shaft (103), a plurality of groups of inclined grooves (1041) are arranged on the lifting shovel (104), the openings of the inclined grooves (1041) gradually decrease from the inside to the outside, a pulling groove (1042) is arranged on the lifting shovel (104), a lower transmission roller (117) is rotatably mounted on the frame (101), and a soil shaking module is arranged on the frame (101); The separation mechanism comprises a traveling frame (301), on which a driving roller (308), a bottom roller (307) and an intermediate roller (310) are mounted, a lower transmission belt (321) is wound around the bottom roller (307), the intermediate roller (310) and the driving roller (308), the upper surface of the lower transmission belt (321) forms an angle of twenty degrees with a horizontal plane, a bottom gear (311) is fixedly mounted on the driving roller (308), and a collecting bag for collecting soybeans is arranged below the frame (101), and the soybeans leaving the lower transmission belt (321) enter the collecting bag.

2. A self-propelled soybean plot thresher according to claim 1, characterized in that: The extraction mechanism further comprises a lifting gear (105) and a front end gear (115) fixedly mounted on the end of the lifting shaft (103); two driven wheels (102) are rotatably mounted on the frame (101); a scraper (127) is fixedly mounted on the frame (101); two transmission rollers (112) are rotatably mounted on the frame (101); a transmission gear (113) is fixedly mounted on the transmission roller (112) on the side close to the lifting shaft (103); an upper gear (116) is fixedly mounted on the transmission roller (112) located above the lower transmission roller (117); a lower gear (118) is fixedly mounted on the lower transmission roller (117); a vertical transmission belt (119) is wound around the lower gear (118) and the upper gear (116); and a front transmission belt (114) is wound around the front end gear (115) and the transmission gear (113).

3. A self-propelled soybean plot thresher according to claim 2, characterized in that: A material unloading wheel (107) is rotatably mounted on the frame (101), a plurality of material unloading levers (108) are provided on the material unloading wheel (107), a shifting gear (109) is fixedly mounted on the material unloading wheel (107), a transfer gear (110) is rotatably mounted on the frame (101), an oblique transmission belt (106) is wound around the transfer gear (110) and the lifting gear (105), and the transfer gear (110) is meshed with the shifting gear (109).

4. A self-propelled soybean plot thresher according to claim 3, characterized in that: The soil shaking module comprises a leak hole vibration belt (111) wound around two driving rollers (112), a plurality of holes being arranged on the leak hole vibration belt (111), a friction wheel (120) being fixedly mounted on the driving roller (112), two groove wheels (124) being rotatably mounted on the frame (101), a friction belt (125) being wound around the two groove wheels (124), the outer side of the friction belt (125) and the friction wheel (120) forming a friction transmission, an inner protrusion block (126) being arranged on the inner side of the friction belt (125), five lifting blocks (121) being slidably mounted inside the frame (101), an upper lifting block (122) being fixedly mounted on the lifting block (121), and a tension spring (123) being arranged between the lifting block (121) and the frame (101).

5. The self-propelled soybean plot thresher according to claim 1, characterized in that: The lifting mechanism comprises two turning wheels (208) rotatably mounted on a frame (101); a lifting belt (203) is wound around an upper conveying roller (201), a lower transmission roller (117) and the two turning wheels (208); a plurality of lifting plates (204) are arranged on the lifting belt (203); a motor (206) is fixedly mounted below the frame (101); a motor gear (207) is fixedly mounted on the motor shaft of the motor (206); a top gear (202) is fixedly mounted on the upper conveying roller (201); an inner and outer toothed belt (205) is wound around the top gear (202) and the bottom gear (311); teeth are arranged on the inner and outer sides of the inner and outer toothed belts (205); and the motor gear (207) meshes with the outer teeth of the inner and outer toothed belts (205).

6. The self-propelled soybean plot thresher according to claim 1, characterized in that: The separation mechanism further comprises two intermediate wheels (302) rotatably mounted on the traveling frame (301), two driving wheels (303) rotatably mounted on the traveling frame (301), a traveling gear (304) being fixedly mounted on the driving wheel (303), a docking gear (309) being fixedly mounted on the driving roller (308), and the docking gear (309) being meshed with the traveling gear (304).

7. A self-propelled soybean plot thresher according to claim 6, characterized in that: An outer cylinder (305) is fixedly mounted on the traveling frame (301), the outer cylinder (305) and the hopper (306) are fixedly mounted, a plurality of driving teeth (322) are arranged on the lower transmission belt (321), an inner crushing column (313) is rotatably mounted in the outer cylinder (305), a central gear (314) is fixedly mounted at the bottom of the inner crushing column (313), a bottom bevel gear (323) is fixedly mounted on the central gear (314), and the bottom bevel gear (323) is meshed with the driving teeth (322).

8. The self-propelled soybean plot thresher according to claim 7, characterized in that: A turntable (312) is rotatably mounted on the hopper (306), a material drop hole (320) is provided on the turntable (312), a turntable gear (319) is fixedly mounted below the turntable (312), a transmission column (317) is rotatably mounted on the outer cylinder (305), an upper column gear (318) and a lower column gear (315) are fixedly mounted on the transmission column (317), the upper column gear (318) is meshed with the turntable gear (319), and a lower transmission belt (316) is wound around the lower column gear (315) and the central gear (314).

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