Weeding mini-tiller

Abstract

The utility model discloses a weeding mini-tiller, and belongs to the technical field of mini-tiller machining. The hoeing machine mainly comprises a rack, a driving mechanism is arranged on the rack, a rear walking wheel is rotationally connected to the rear portion of the rack, a rear walking gearbox is fixedly connected to the rack, a power output shaft of the rear walking gearbox is connected with the rear walking wheel, and a hoeing mechanism is rotationally connected to the front portion of the rack. The driving mechanism is in transmission connection with the weeding mechanism and a power input shaft of the rear walking gearbox. The tensioning control mechanism and the rear walking gearbox are arranged, so that the walking states of the hoeing mechanism and the rear walking wheel can be independently controlled under the condition that the driving mechanism is not closed, and the hoeing machine is safer and more convenient to use. The high grass smashing type hoeing machine is mainly used for smashing type hoeing operation of high grass.

Description

Technical Field

[0001] The utility model belongs to the technical field of micro-tillage machine processing, and in particular relates to a weeding micro-tillage machine. Background Art

[0002] The working part of the weeding micro-tillage machine is a weeding blade. When in use, the weeding blade is driven to rotate by the rear driving mechanism to clean the weeds. The Chinese patent with the authorization announcement number "CN219182108U" discloses a weeding micro-tillage machine that is easy to clean. It mainly includes a frame, a protective cover is fixedly connected to the front end of the frame, a weeding blade is arranged in the protective cover, and a running wheel is rotatably connected to the rear end of the frame. The protective cover includes a cover shell fixedly connected to the frame, and a detachable first side plate and a second side plate are respectively arranged on the left and right sides of the cover shell. The first side plate and the second side plate are fixedly connected to the cover shell by fasteners. The above scheme changes the two sides of the protective cover into a detachable side plate structure, which is convenient for cleaning the entangled weeds, and when weeding, the running wheel can be driven to rotate synchronously, which reduces the labor intensity of the staff and improves work efficiency.

[0003] Although the above patent solves the problem of weeds being entangled and inconvenient to clean, there are still the following shortcomings when using it: 1. The start and stop of the weeding knife cannot be controlled in time; 2. It is impossible to clean high grass. When weeding, high grass is very easy to be entangled on the weeding knife and the corresponding transmission shaft, causing the machine to be blocked and stopped, which is extremely inconvenient to use; 3. The rear walking wheel cannot be controlled autonomously. When the weeding micro-tillage machine moves to a narrow area, it cannot turn around, which is inconvenient to use.

[0004] In view of the above technical problems, this application proposes a solution. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the shortcomings of the prior art and provide a weeding micro-tillage machine, which, by arranging a tensioning control mechanism and a rear traveling gearbox, can realize that the walking states of the weeding mechanism and the rear traveling wheel can be independently controlled without shutting down the driving mechanism, making it safer and more convenient to use.

[0006] The weeding micro-tillage machine comprises a frame, a driving mechanism is provided on the frame, a rear traveling wheel is rotatably connected to the rear of the frame, a rear traveling gearbox is fixedly connected to the frame, a power output shaft of the rear traveling gearbox is connected to the rear traveling wheel, a weeding mechanism is rotatably connected to the front of the frame, and the driving mechanism is respectively connected to the weeding mechanism and the power input shaft of the rear traveling gearbox.

[0007] Preferably, the weeding mechanism includes a weeding shaft, both ends of which are provided with transmission shafts, and multiple groups of fixing mechanisms are fixed on the weeding shaft, the fixing mechanisms include a fixing seat 1 and a fixing seat 2 which are respectively fixedly connected to the outer side walls of the weeding shaft, a rotating shaft is provided between the fixing seat 1 and the fixing seat 2, and a weeding knife is rotatably connected to the rotating shaft of each group of fixing mechanisms.

[0008] Preferably, the weeding knife includes a middle chopping knife, and symmetrically arranged end chopping knives are respectively provided on both sides of the middle chopping knife, and the middle chopping knife and the end chopping knives are both rotatably connected to the rotating shaft, and a beveled surface one is respectively provided on both sides of the middle chopping knife, and a plurality of chopping teeth one is provided on the beveled surface one, and the end chopping knife includes a side chopping knife arranged parallel to the middle chopping knife, and an oblique chopping knife is fixed on the upper part of the side chopping knife, and the oblique chopping knife is inclined to the side away from the middle chopping knife.

[0009] Preferably, both sides of the side cutting and shredding knife and the oblique cutting and shredding knife are respectively provided with an oblique cutting surface 2, and a plurality of second cutting teeth are provided on the oblique cutting surface 2.

[0010] Preferably, the rear travel gearbox includes an outer shell, in which a power input shaft, shaft one, shaft two, shaft three and a power output shaft are rotatably connected, and a shifting mechanism capable of moving along its axial direction is slidably connected to the power input shaft. The power input shaft can directly drive shaft one for transmission, or directly drive shaft two for transmission, or be connected with neither shaft one nor shaft two in a non-transmission manner, with shaft one driving shaft two for transmission, shaft two driving shaft three for transmission, and shaft three driving the power output shaft to rotate.

[0011] Preferably, a keyway is provided on the power input shaft along the axial direction, the shift mechanism includes a main gear 1 and a main gear 2 fixedly connected by a sleeve, the number of teeth of the main gear 2 is greater than the number of teeth of the main gear 1, and keys matching the keyway are provided in the main gear 1, the sleeve and the main gear 2. An adjusting rod passes through and is slidably connected to the outer shell, the sliding direction of the adjusting rod is the same as the sliding direction of the shift mechanism, a shift fork is fixedly connected to the adjusting rod, and the shift fork is rotatably connected to the sleeve.

[0012] Preferably, the shaft one is fixedly connected with a reduction gear, a transmission gear one, and a transmission gear two, the transmission gear two cooperates with the main gear two, the reduction gear cooperates with the main gear one, the shaft two is fixedly connected with a transmission gear three, a transmission gear four and a transmission gear five, the transmission gear four cooperates with the main gear two, the transmission gear five meshes with the transmission gear one, the shaft three is fixedly connected with a transmission gear six and a transmission gear seven, the transmission gear seven meshes with the transmission gear three, the power output shaft is fixedly connected with a transmission gear eight, the transmission gear eight meshes with the transmission gear six.

[0013] Preferably, a front protective cover is fixed to the front end of the frame, a detachable side panel is provided on one side of the front protective cover, the weeding mechanism is arranged in the front protective cover and is rotatably connected to the front protective cover, a driving pulley 1 is provided at the output end of the driving mechanism, a driven pulley 2 is rotatably connected to the front protective cover, a first conveyor belt is commonly connected to the driving pulley 1 and the driven pulley 2 for transmission, and a tensioning control mechanism for controlling the transmission of the weeding mechanism is provided on the frame or the front protective cover.

[0014] Preferably, the tensioning control mechanism includes a fixed seat three, which is rotatably connected to a tensioning seat, one end of the tensioning seat is rotatably connected to a tensioning roller that abuts against the first conveyor belt, the other end of the tensioning seat is provided with a spring, the other end of the spring is connected to a brake line, the brake line passes through the fixed seat four, and is connected to the control handle.

[0015] Preferably, the tensioning seat is any one of an L-shaped, V-shaped and U-shaped structure.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. Add a rear travel gearbox and a weeding mechanism. The rear travel gearbox adds four functions to the rear travel wheel: fast forward, slow forward, reverse and neutral, and can be adjusted at any time. When the weeding micro-tillage machine enters a narrow area and it is inconvenient to turn around, you can directly operate the rear travel wheel to exit the narrow area, which is more convenient to use; the weeding mechanism can directly break up tall grass and other weeds that are easy to entangle, fundamentally solving the problem that tall grass is easy to entangle the weeding blade and the corresponding transmission shaft when weeding.

[0018] 2. Add a tensioning control mechanism, tighten the brake line, and the brake line drives the tensioning seat to rotate, so that the tensioning roller presses the first conveyor belt, so that the power is smoothly transmitted to the weeding mechanism to perform grass chopping operations; when the brake line is released, the tensioning seat rotates counterclockwise under the resetting action of the spring, and the tensioning roller no longer presses the first conveyor belt. The first conveyor belt is in a relaxed state and cannot transmit power. The weeding mechanism no longer works, and the control is more convenient.

[0019] 3. The utility model provides a tension control mechanism and a rear travel gearbox, so that the walking states of the weeding mechanism and the rear travel wheel can be independently controlled without shutting down the driving mechanism, making it safer and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 for Figure 1 A partial enlarged view of part A;

[0022] Figure 3 This is the installation diagram of the rear travel gearbox;

[0023] Figure 4 It is a partial structural schematic diagram of the rear side of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the weeding mechanism;

[0025] Figure 6 for Figure 5 A partial enlarged view of part B;

[0026] Figure 7 This is a schematic diagram of the disassembled structure of the rear travel gearbox;

[0027] Figure 8 Schematic diagram of the internal structure of the rear travel gearbox Figure 1 ;

[0028] Fig. 9 Schematic diagram of the internal structure of the rear travel gearbox Figure 2 .

[0029] In the figure, 1, frame; 2, rear travel wheel; 3, handle; 4, shift lever; 5, driving mechanism; 501, driving pulley 1; 502, driving pulley 2; 503, first conveyor belt; 504, driven pulley 2; 505, driven pulley 3; 6, front protective cover; 601, side plate; 7, weeding mechanism; 71, weeding shaft; 7101, fixed seat 1; 7102, fixed seat 2; 7103, rotating shaft; 72, transmission shaft; 73, weeding knife; 7301, middle shredder knife; 7302, shredder tooth 1; 7303, side shredder knife; 7304, shredder tooth 2; 7305, oblique shredder knife; 8, front travel wheel; 9, tension control mechanism; 901, brake line; 90 2. Tensioning roller; 903. Tensioning seat; 904. Fixed seat three; 905. Spring; 906. Fixed seat four; 10. Rear travel gearbox; 101. Adjusting rod; 1011. Shift fork; 102. Power input shaft; 1021. Main gear one; 1022. Main gear two; 103. Shaft one; 1031. Reduction gear; 1032. Transmission gear one; 1033. Transmission gear two; 104. Shaft two; 1041. Transmission gear three; 1042. Transmission gear four; 1043. Transmission gear five; 105. Shaft three; 1051. Transmission gear six; 1052. Transmission gear seven; 106. Power output shaft; 1061. Transmission gear eight; 11. Adjustment hole. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings:

[0031] The directional nouns involved in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application according to the visual orientation shown in the accompanying drawings. Unless otherwise clearly specified and limited, the terms "setting", "installation", "connection", etc. should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0032] like Figures 1 to 9 As shown, a weeding micro-tillage machine comprises a frame 1, a driving mechanism 5 is arranged on the frame 1, and the driving mechanism 5 is preferably a small gasoline engine or a diesel engine. The rear of the frame 1 is rotatably connected to a rear travel wheel 2, and a rear travel gearbox 10 is fixedly connected to the frame 1. The power output shaft 106 of the rear travel gearbox 10 is connected to the rear travel wheel 2. The front of the frame 1 is rotatably connected to a weeding mechanism 7, and the driving mechanism 5 is respectively connected to the weeding mechanism 7 and the power input shaft 102 of the rear travel gearbox 10. The rear travel gearbox 10 adds four functions of fast forward, slow forward, reverse and neutral to the rear travel wheel 2, and can be adjusted at any time. When the weeding micro-tillage machine enters a narrow section and is not convenient to turn around, the rear travel wheel 2 can be directly operated to exit the narrow section, which is more convenient to use; the weeding mechanism 7 can directly break up weeds that are easy to entangle, such as tall grass, which fundamentally solves the problem that tall grass is easy to entangle the weeding blade and the corresponding transmission shaft when weeding.

[0033] A front protective cover 6 is fixed to the front end of the frame 1, and a detachable side plate 601 is provided at one end of the front protective cover 6. The weeding mechanism 7 is arranged in the front protective cover 6 and is rotatably connected to the front protective cover 6. Figure 5 and Figure 6 As shown, the weeding mechanism 7 includes a weeding shaft 71, and a transmission shaft 72 is respectively provided at both ends of the weeding shaft 71. The two ends of the transmission shaft 72 are respectively connected to the front protective cover 6 through bearings, or one end of the transmission shaft 72 is connected to the front protective cover 6 through rotation, and the other end is connected to the working part gear box. A plurality of fixing mechanisms are fixed on the weeding shaft 71, and the fixing mechanisms are used to install the weeding blade 73. Adjacent fixing mechanisms can be staggered as needed. The fixing mechanisms include a fixing seat 1 7101 and a fixing seat 2 7102 respectively connected to the outer wall of the weeding shaft 71. A rotating shaft 7103 is provided between the fixing seat 1 7101 and the fixing seat 2 7102. In this embodiment, holes matching the rotating shaft 7103 are provided on the fixing seat 1 7101 and the fixing seat 2 7102. The rotating shaft 7103 passes through the hole and is limited by a pin shaft. The rotating shaft 7103 can rotate in the hole. A weeding blade 73 is rotatably connected to the rotating shaft 7103 of each set of fixing mechanisms.

[0034] The weeding knife 73 includes a middle chopping knife 7301, and symmetrically arranged end chopping knives are respectively arranged on both sides of the middle chopping knife 7301. The middle chopping knife 7301 and the end chopping knives are both rotatably connected to the rotating shaft 7103. The middle chopping knife 7301 is respectively provided with a beveled surface 1 on both sides. The intersection of the beveled surface 1 and the side of the middle chopping knife 7301 at an acute angle is the middle cutting edge. The beveled surface 1 is provided with a plurality of chopping teeth 1 7302. The end chopping knives include a side chopping knife 7303 arranged parallel to the middle chopping knife 7301. An oblique chopping knife 7305 is fixed on the upper part of the side chopping knife 7303. The oblique chopping knife 7305 is arranged to be inclined to the side away from the middle chopping knife 7301, and the inclination angle is controlled within 30-60 degrees.

[0035] The side cutting shredder 7303 and the oblique cutting shredder 7305 are respectively provided with an oblique cutting surface 2 on both sides, and the intersection line of the oblique cutting surface 2 and the side at an acute angle with the side cutting shredder 7303 and the oblique cutting shredder 7305 is the end cutting edge. The end cutting edge is preferably arranged on the side close to the middle cutting shredder 7301, and a plurality of cutting teeth 2 7304 are provided on the oblique cutting surface 2; the cutting teeth 1 7302 and the cutting teeth 2 7304 have the same function, and both have an anti-slip effect, which prevents the weeding knife 73 from sliding away when the weeding knife 73 is chopping grass, thereby improving the chopping efficiency of the tall grass.

[0036] In this embodiment, the middle chopping knife 7301 and the end chopping knife realize chopping from three directions at the same time, which increases the contact area with the tall grass and improves the grass chopping efficiency; at the same time, the side chopping knife 7303 is arranged in parallel with the middle chopping knife 7301, which increases the cutting force at the bottom, further improves the cutting force of the grass stems, and avoids the tall grass from entangled in the weeding mechanism 7.

[0037] like Figures 7 to 9As shown, the rear travel gearbox 10 includes a shell, which is formed by a left half shell and a right half shell fixedly connected by bolts. A power input shaft 102, a shaft 103, a shaft 2 104, a shaft 3 105 and a power output shaft 106 are rotatably connected in the shell. A shift mechanism that can move along its axial direction is slidably connected to the power input shaft 102. Specifically, a keyway is provided on the power input shaft 102 along the axial direction, and the keyway is preferably a spline groove. The shift mechanism includes a main gear 102 fixedly connected by a sleeve. 1 and main gear 2 1022, the number of teeth of main gear 2 1022 is greater than the number of teeth of main gear 1 1021, a key that matches the keyway is fixedly connected inside main gear 1 1021, shaft sleeve and main gear 2 1022, an adjusting rod 101 is passed through and slidably connected on the housing, the adjusting rod 101 is arranged close to the power input shaft 102, the sliding direction of the adjusting rod 101 is the same as the sliding direction of the shift mechanism, a shift fork 1011 is fixedly connected on the adjusting rod 101, and the shift fork 1011 is rotatably connected to the shaft sleeve. One end of the adjusting rod 101 located outside the rear travel gearbox 10 is fixedly connected to the shift lever 4, and an adjusting hole 11 for the shift lever 4 to pass through is provided on the frame 1. When in use, by toggling the shift lever 4, the adjusting rod 101 and the shift fork 1011 are driven to move, thereby driving the shift mechanism to slide on the power input shaft 102, thereby realizing the change of gear position.

[0038] Among them, the power input shaft 102 can directly drive shaft one 103 to transmit, or directly drive shaft two 104 to transmit, or be connected to shaft one 103 and shaft two 104 without transmission through the shifting mechanism. Shaft one 103 drives shaft two 104 to transmit, shaft two 104 drives shaft three 105 to transmit, and shaft three 105 drives the power output shaft 106 to rotate. Specifically, the shaft 103 is fixedly connected with a reduction gear 1031, a transmission gear 1 1032, and a transmission gear 2 1033, the number of teeth of the reduction gear 1031 is greater than that of the transmission gear 2 1033, the transmission gear 2 1033 cooperates with the main gear 2 1022, and the reduction gear 1031 cooperates with the main gear 1 1021, the shaft 2 104 is fixedly connected with a transmission gear 3 1041, a transmission gear 4 1042, and a transmission gear 5 1043, the transmission gear 4 1042 cooperates with the main gear 2 1022, and the transmission gear 5 1043 meshes with the transmission gear 1 1032, the shaft 3 105 is fixedly connected with a transmission gear 6 1051 and a transmission gear 7 1052, the transmission gear 7 1052 meshes with the transmission gear 3 1041, and the power output shaft 106 is fixedly connected with a transmission gear 8 1061, and the transmission gear 8 1061 meshes with the transmission gear 6 1051.

[0039] All the above gears have the same modulus. When the main gear 2 1022 in the shift mechanism is meshed with the transmission gear 2 1033, the power input shaft 102 rotates forward, driving the shaft 103 to reverse, the transmission gear 1 1032 is meshed with the transmission gear 5 1043, driving the shaft 2 104 to rotate forward, the transmission gear 3 1041 is meshed with the transmission gear 7 1052, driving the shaft 3 105 to reverse, the transmission gear 8 1061 is meshed with the transmission gear 6 1051, driving the power output shaft 106 to rotate forward, that is, the power input shaft 102 and the power output shaft 106 have the same direction of rotation, so that the rear travel wheel 2 can be quickly advanced; when the main gear 1021 is meshed with the reduction gear 1031, the transmission process is the same as above, so that the rear travel wheel 2 can be decelerated and advanced; when the main gear 2 1022 is meshed with the transmission gear 4 1042, that is, the power input shaft 102 rotates forward and drives the shaft 2 104 to reverse, the transmission process is the same as above, so that the rear travel wheel 2 can retreat.

[0040] like Figures 1 to 4 As shown, the output end of the driving mechanism 5 is provided with a driving pulley 1 501 and a driving pulley 2 502, the front protective cover 6 is rotatably connected with a driven pulley 2 504, the driven pulley 2 504 is arranged at the end away from the side plate 601, the driving pulley 1 501 and the driven pulley 2 504 are commonly connected by a first conveyor belt 503, the frame 1 or the front protective cover 6 is provided with a tensioning control mechanism 9 for controlling the transmission of the weeding mechanism 7, a driven pulley 3 505 is provided at the rear of the frame 1, the driving pulley 2 502 and the driven pulley 3 505 are commonly connected by a second conveyor belt, and the driven pulley 3 505 is fixedly connected to the power input shaft 102 on the rear travel gearbox 10.

[0041] The tensioning control mechanism 9 includes a fixed seat three 904, on which a tensioning seat 903 is rotatably connected. The tensioning seat 903 is any one of an L-shaped, V-shaped and U-shaped structure. One end of the tensioning seat 903 is rotatably connected to a tensioning roller 902 that abuts against the first conveyor belt 503. The other end of the tensioning seat 903 is provided with a spring 905. The other end of the spring 905 is connected to a brake line 901. The brake line 901 passes through the fixed seat four 906 and is connected to a control handle. A handle is rotatably connected to the weeding micro-tillage machine, and the handle has a built-in control handle.

[0042] When in use, the brake line 901 is tightened by the control handle. Under the action of the lever principle, the brake line 901 drives the tensioning seat 903 to rotate, so that the tensioning roller 902 presses the first conveyor belt 503, so that the power is smoothly transmitted to the weeding mechanism 7 to perform grass-chopping operations; when the brake line 901 is released, under the reset action of the spring 905, the tensioning seat 903 rotates counterclockwise, the tensioning roller 902 no longer presses the first conveyor belt 503, the first conveyor belt 503 is in a relaxed state, power cannot be transmitted, and the weeding mechanism 7 no longer works. The utility model sets a tensioning control mechanism 9 and a rear travel gearbox 10, so that the walking states of the weeding mechanism 7 and the rear travel wheel 2 can be independently controlled without closing the driving mechanism 5, which is safer and more convenient to use.

[0043] Finally, although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A weeding micro-tillage machine, comprising a frame (1), a driving mechanism (5) being provided on the frame (1), a rear running wheel (2) being rotatably connected to the rear of the frame (1), and characterized in that: The frame (1) is fixedly connected to a rear travel gearbox (10), a power output shaft (106) of the rear travel gearbox (10) is connected to the rear travel wheel (2), a weeding mechanism (7) is rotatably connected to the front of the frame (1), and the drive mechanism (5) is respectively connected to the weeding mechanism (7) and the power input shaft (102) of the rear travel gearbox (10) in driving connection; The weeding mechanism (7) comprises a weeding shaft (71), and transmission shafts (72) are respectively provided at both ends of the weeding shaft (71). A plurality of fixing mechanisms are fixed to the weeding shaft (71), and the fixing mechanisms comprise a fixing seat 1 (7101) and a fixing seat 2 (7102) respectively fixedly connected to the outer side wall of the weeding shaft (71). A rotating shaft (7103) is provided between the fixing seat 1 (7101) and the fixing seat 2 (7102), and a weeding knife (73) is rotatably connected to the rotating shaft (7103) of each fixing mechanism. The rear travel gearbox (10) comprises a housing, in which a power input shaft (102), a shaft one (103), a shaft two (104), a shaft three (105) and a power output shaft (106) are rotatably connected; a shift mechanism capable of axial movement is slidably connected to the power input shaft (102); the power input shaft (102) can directly drive the shaft one (103) for transmission, or directly drive the shaft two (104) for transmission, or is non-transmission-connected to both the shaft one (103) and the shaft two (104); the shaft one (103) drives the shaft two (104) for transmission, the shaft two (104) drives the shaft three (105) for transmission, and the shaft three (105) drives the power output shaft (106) for rotation; A keyway is provided on the power input shaft (102) along the axial direction. The gear shifting mechanism comprises a main gear 1 (1021) and a main gear 2 (1022) which are fixedly connected via a shaft sleeve. A key matching the keyway is provided in the main gear 1 (1021), the shaft sleeve and the main gear 2 (1022). An adjusting rod (101) passes through and is slidably connected to the outer shell. The sliding direction of the adjusting rod (101) is the same as that of the gear shifting mechanism. A shift fork (1011) is fixedly connected to the adjusting rod (101). The shift fork (1011) is rotatably connected to the shaft sleeve.

2. The weeding micro-tillage machine according to claim 1, characterized in that: The weeding knife (73) comprises a middle chopping knife (7301), and symmetrically arranged end chopping knives are respectively arranged on both sides of the middle chopping knife (7301). The middle chopping knife (7301) and the end chopping knives are both rotatably connected to the rotating shaft (7103). The middle chopping knife (7301) is respectively provided with an inclined surface one on both sides, and a plurality of chopping teeth one (7302) are provided on the inclined surface one. The end chopping knife comprises a side chopping knife (7303) arranged parallel to the middle chopping knife (7301), and an inclined chopping knife (7305) is fixed on the upper part of the side chopping knife (7303). The inclined chopping knife (7305) is arranged inclined to a side away from the middle chopping knife (7301).

3. The weeding micro-tillage machine according to claim 2, characterized in that: The side cutting and shredding knife (7303) and the oblique cutting and shredding knife (7305) are respectively provided with an oblique cutting surface 2 on both sides, and a plurality of second cutting and shredding teeth (7304) are provided on the oblique cutting surface 2.

4. The weeding micro-tillage machine according to claim 1, characterized in that: The number of teeth of the main gear 2 (1022) is greater than the number of teeth of the main gear 1 (1021).

5. The weeding micro-tillage machine according to claim 4, characterized in that: The shaft 1 (103) is fixedly connected with a reduction gear (1031), a transmission gear 1 (1032), and a transmission gear 2 (1033); the transmission gear 2 (1033) cooperates with the main gear 2 (1022); the reduction gear (1031) cooperates with the main gear 1 (1021); the shaft 2 (104) is fixedly connected with a transmission gear 3 (1041), a transmission gear 4 (1042), and a transmission gear 5 (1043); the transmission gear 4 (1042) ) cooperates with main gear two (1022), transmission gear five (1043) meshes with transmission gear one (1032), transmission gear six (1051) and transmission gear seven (1052) are fixedly connected to shaft three (105), transmission gear seven (1052) meshes with transmission gear three (1041), and transmission gear eight (1061) is fixedly connected to the power output shaft (106), and transmission gear eight (1061) meshes with transmission gear six (1051).

6. The weeding micro-tillage machine according to any one of claims 1 to 5, characterized in that: A front protective cover (6) is fixed to the front end of the frame (1); a detachable side plate (601) is provided on one side of the front protective cover (6); a weeding mechanism (7) is arranged in the front protective cover (6) and is rotatably connected to the front protective cover (6); a driving pulley (501) is provided at the output end of the driving mechanism (5); a driven pulley (504) is rotatably connected to the front protective cover (6); a first conveyor belt (503) is commonly connected between the driving pulley (501) and the driven pulley (504); and a tensioning control mechanism (9) for controlling the transmission of the weeding mechanism (7) is provided on the frame (1) or the front protective cover (6).

7. The weeding micro-tillage machine according to claim 6, characterized in that: The tensioning control mechanism (9) comprises a fixing seat three (904), the fixing seat three (904) being rotatably connected to a tensioning seat (903), one end of the tensioning seat (903) being rotatably connected to a tensioning roller (902) abutting against the first conveyor belt (503), the other end of the tensioning seat (903) being provided with a spring (905), the other end of the spring (905) being connected to a brake line (901), the brake line (901) passing through a fixing seat four (906) and being connected to a control handle.

8. The weeding micro-tillage machine according to claim 7, characterized in that: The tensioning seat (903) is any one of an L-shaped, V-shaped and U-shaped structure.

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