Self-propelled field weeding machine

Abstract

The invention discloses a self-propelled field weeding machine, and relates to the technical field of weeding. The self-propelled field weeding machine comprises a frame, a shielding cover is fixedly connected to the outer wall of the frame, rolling wheels are further rotationally connected to the outer wall of the frame, a cutting assembly is fixedly connected to the outer wall of the frame, and a self-propelled assembly is fixedly connected to the position, located on the left side of the cutting assembly, of the outer wall of the frame; the outer wall of the frame is fixedly connected with a pressing mechanism. According to the self-propelled field weeding machine, the motor drives the driving wheel, the driving wheel and the driven wheel are connected through the transmission belt, the cutting edge is driven to rotate, and due to the design, when the cutting edge encounters hard grass, the driving wheel can be prevented from directly driving the cutting edge to rotate, the motor and a transmission component are effectively protected, and the durability of the machine is improved; and therefore, the cutting capacity for grass with different hardness is improved, and the problem that grass rhizomes are hard and are difficult to cut off effectively is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of weeding, and specifically relates to a self-propelled field weeding machine. Background Art

[0002] A field weeding machine is a mechanical device used for weeding in farmland, which can effectively improve the weeding efficiency and reduce the labor intensity of farmers. Common types include handheld, sit-down, tractor-mounted, micro-tiller type, and semi-mechanized types. Its power sources are diverse, including fuel, electricity, etc. Its working principle is mainly to cut weeds by rotating a cutter or by using methods such as flame or laser. The field weeding machine has the advantages of high efficiency, convenience, environmental protection, and energy conservation.

[0003] The patent application with the publication number CN104094690B discloses a self-propelled field weeding machine used in rape fields or broad bean fields with a certain row spacing and used in conjunction with a micro-tiller. The upper end of the telescopic handle of the present invention passes through the square hole of the fixed seat and is fixed in the fixed seat by a set screw. The lower end of the telescopic handle is fixed with a hoe shovel by a bolt. On the side of the middle part of the large frame opposite to the fixed seat, a fixed connection frame is welded. The front end of the fixed connection frame is welded with a fixed connection pin hole along the longitudinal direction. On the rear end of one side of the fixed connection frame, a telescopic pipe sleeve is welded. The telescopic pipe is fixed in the telescopic pipe sleeve by a lift limit wheel adjustment handle. The lower end of the telescopic pipe is fixed with a lift limit wheel by a wheel frame.

[0004] The three hoe shovels of the above patent have good profiling effects and can be adjusted to the accurate row spacing suitable for weeding through U-shaped bolts, and the weeding efficiency is significantly improved. However, during the weeding process, different types of grass have different hardnesses and degrees of fitting to the ground. Some types of grass have hard roots and rhizomes, so it is difficult to effectively cut and disconnect them. Moreover, some grass is very close to the ground and it is difficult to cut it, resulting in low cutting efficiency. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a self-propelled field weeding machine to solve the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A self-propelled field weeding machine includes a frame. The outer wall of the frame is fixedly connected with a shielding cover. The outer wall of the frame is also rotatably connected with rolling wheels. The outer wall of the frame is fixedly connected with a cutting assembly. On the left side of the cutting assembly on the outer wall of the frame, a self-propelled assembly is fixedly connected. The outer wall of the frame is fixedly connected with a pressing mechanism. The motor drives the driving wheel, and the driving wheel and the driven wheel are connected by a transmission belt to drive the cutting edge to rotate. This design can avoid the driving wheel directly driving the cutting edge to rotate when the cutting edge encounters harder grass, effectively protecting the motor and transmission components, improving the durability of the equipment, and further enhancing the cutting ability for different hardness grass types, solving the problem of difficult effective cutting and disconnection due to hard roots and rhizomes of grass.

[0007] The pressing mechanism includes:

[0008] A telescopic machine, which is fixedly connected to the outer wall of the frame;

[0009] A first spring, which is movably connected to the bottom of the telescopic machine;

[0010] A second rotating roller, one end of which is rotatably connected to the bottom of the first spring;

[0011] A rotating belt, which is sleeved on the outer wall of the second rotating roller.

[0012] Preferably, the telescopic machine is rotatably connected to the outer wall of the frame through a first bracket, and the second rotating roller and the first spring are rotatably connected through a bearing. The driving component drives the driving roller, and the chain belt connects the driving roller, the driven roller and the driving roller. The cooperation with the rolling wheel realizes the self-walking of the device. It can not only flexibly adjust the moving direction, but also enable the cutting edge to continuously perform weeding operations during the moving process, improving the weeding efficiency.

[0013] Preferably, the cutting assembly includes a motor, which is fixedly connected to the outer wall of the frame. A driving wheel is rotatably connected to the bottom of the motor, a driven wheel is rotatably connected to the outer wall of the shielding cover, and a transmission belt is sleeved on the outer walls of the driven wheel and the driving wheel. A cutting edge is fixedly connected to the bottom of the driven wheel and at the bottom of the shielding cover. The telescopic machine connects the second rotating roller through the first spring, and the rotating belt is sleeved on the second rotating roller. During the movement of the device, the telescopic machine repeatedly presses down and lifts the second rotating roller, so that the rotating belt continuously squeezes the grass, which can effectively break the grass with relatively hard roots. At the same time, the inclined rotating belt also guides the grass to be broken, greatly enhancing the cutting effect on difficult-to-handle grass and improving the cutting efficiency.

[0014] Preferably, the self-walking assembly includes a driving component, which is fixedly connected to the outer wall of the frame. A driving roller is rotatably connected to the outer wall of the driving component, and a driven roller and a driving roller are also rotatably connected to the outer wall of the frame. A chain belt is sleeved on the outer walls of the driven roller, the driving roller and the driving roller.

[0015] Preferably, the driving roller is fixedly connected to the end of the first rotating roller.

[0016] Preferably, a guiding mechanism is also fixedly connected to the outer wall of the frame. The chain belt is arranged at the front position. At this time, the rotation of the chain belt drives the rotation of the driving roller, which in turn drives the rotation of the first rotating roller. During the rotation of the first rotating roller, the rotation of the rotating belt is driven. The arrangement of the rotating belt squeezes the grass, so that the taller grass is squeezed and bent. During the movement, when the telescoping machine is powered on and started, it will press down on the second rotating roller through the connection of the first spring, and then drive the second rotating roller to rise. During the repeated process, the rotating belt will continuously press down on the grass, so that the grass with harder rhizomes is broken. The rotating belt is inclined, which can also guide the grass to be broken by the rotating belt.

[0017] Preferably, the guiding mechanism includes a blower. The blower is fixedly connected to the outer wall of the frame. The bottom of the blower is fixedly connected to a zigzag pipe. The bottom of the zigzag pipe is fixedly connected to an air flow chamber. A second spring is fixedly connected between the outer wall of the air flow chamber and the outer wall of the frame. The bottom of the air flow chamber is fixedly connected to a filter plate. The blower is connected to the air flow chamber through the zigzag pipe. The filter plate is arranged at the bottom of the air flow chamber. When the blower is started to suck air flow, it can guide the grass close to the ground to rise, facilitating the cutting by the cutting edge. The filter plate intercepts the larger grass, sucks in the smaller grass and impurities and discharges them backward, reducing the impurities in the grass and providing convenient conditions for the cutting by the cutting edge. At the same time, the rotation of the driving wheel drives the second convex block to collide with the first convex block on the air flow chamber, causing the air flow chamber to shake and preventing the filter plate from being blocked, further ensuring the efficient progress of the weeding operation.

[0018] Preferably, the second spring, the blower and the discharge pipe are all fixedly connected to the outer wall of the frame through the second bracket.

[0019] Preferably, a first convex block is fixedly connected to the top of the air flow chamber, and a second convex block is fixedly connected to the bottom of the driving wheel. The second convex block is in movable contact with the first convex block.

[0020] The present invention provides a self-propelled field weeding machine, which has the following beneficial effects:

[0021] 1. For this self-propelled field weeding machine, the driving wheel is driven by the motor, and the driving wheel and the driven wheel are connected by a transmission belt to drive the cutting edge to rotate. This design can avoid the driving wheel directly driving the cutting edge to rotate when the cutting edge encounters harder grass, effectively protecting the motor and transmission components, improving the durability of the equipment, and then enhancing the cutting ability for grass of different hardnesses, solving the problem that it is difficult to effectively cut and disconnect due to the hard rhizomes of the grass.

[0022] 2. For this self-propelled field weeding machine, the driving roller is driven by the driving component, and the chain belt connects the driving roller, the driven roller and the driving roller, and cooperates with the rolling wheels to realize the self-propulsion of the device. It can not only flexibly adjust the moving direction, but also enable the cutting edge to continuously perform weeding operations during the movement, improving the weeding efficiency.

[0023] 3. The self-propelled field weeding machine connects the second rotating roller through a telescopic machine via a first spring. A rotating belt is sleeved on the second rotating roller. During the movement of the equipment, the telescopic machine repeatedly presses down and lifts the second rotating roller, causing the rotating belt to continuously squeeze the grass. For grass with relatively hard roots and stems, it can be effectively broken. At the same time, the inclined rotating belt also guides the grass to be broken, greatly enhancing the cutting effect on difficult-to-handle grass and improving the cutting efficiency.

[0024] 4. The self-propelled field weeding machine connects an air flow bin through a wind machine via a zigzag pipe. A filter plate is arranged at the bottom of the air flow bin. When the wind machine starts to suck air flow, it can guide the grass close to the ground to rise, facilitating the cutting by the cutting edge. The filter plate intercepts larger grass, sucks in smaller grass and impurities and discharges them backward, reducing the impurities in the grass and providing convenient conditions for the cutting by the cutting edge. At the same time, the rotation of the driving wheel drives the second projection block to collide with the first projection block on the air flow bin, causing the air flow bin to shake and preventing the filter plate from being blocked, further ensuring the efficient progress of the weeding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an axonometric three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 For the present invention Figure 1 It is an enlarged structural schematic diagram of part A in the present invention;

[0027] Figure 3 It is a bottom-up three-dimensional structural schematic diagram of the present invention;

[0028] Figure 4 It is a partial structural schematic diagram of the pressing mechanism of the present invention;

[0029] Figure 5 It is a back three-dimensional structural schematic diagram of the present invention;

[0030] Figure 6 For the present invention Figure 5 It is a sectional structural schematic diagram;

[0031] Figure 7 For the present invention Figure 6 It is an enlarged structural schematic diagram of part B in the present invention;

[0032] Figure 8 It is a partial structural schematic diagram of the guiding mechanism of the present invention.

[0033] In the figure: 1. Frame; 2. Rolling wheel; 3. Shielding cover; 4. Cutting assembly; 41. Motor; 42. Transmission belt; 43. Driven wheel; 44. Driving wheel; 45. Cutting edge; 5. Self-propelled assembly; 51. Driven roller; 52. Chain belt; 53. Driving roller; 54. Driving roller; 55. Driving component; 6. Pressing mechanism; 61. First rotating roller; 62. Rotating belt; 63. Bearing; 64. Second rotating roller; 65. First spring; 66. Telescopic machine; 67. First bracket; 7. Guiding mechanism; 71. Second bracket; 72. Discharge pipe; 73. Fan; 74. Zigzag pipe; 75. Second spring; 76. Air flow bin; 77. First raised block; 78. Second raised block; 79. Filter plate. Detailed implementation mode

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0035] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0036] Embodiment 1, please refer to Figures 1-6 , the present invention provides a technical solution: a self-propelled field weeding machine, including a frame 1, a shielding cover 3 is fixedly connected to the outer wall of the frame 1, a rolling wheel 2 is also rotatably connected to the outer wall of the frame 1, a cutting assembly 4 is fixedly connected to the outer wall of the frame 1, a self-propelled assembly 5 is fixedly connected to the left side position of the outer wall of the frame 1 where the cutting assembly 4 is located, and a pressing mechanism 6 is fixedly connected to the outer wall of the frame 1;

[0037] The pressing mechanism 6 includes:

[0038] A telescopic machine 66, and the telescopic machine 66 is fixedly connected to the outer wall of the frame 1;

[0039] A first spring 65, and the first spring 65 is movably connected to the bottom of the telescopic machine 66;

[0040] A second rotating roller 64, and one end of the second rotating roller 64 is rotatably connected to the bottom of the first spring 65;

[0041] A rotating belt 62, and the rotating belt 62 is sleeved on the outer wall of the second rotating roller 64.

[0042] The telescopic machine 66 is rotatably connected to the outer wall of the frame 1 through a first bracket 67, and the second rotating roller 64 and the first spring 65 are rotatably connected through a bearing 63.

[0043] The cutting assembly 4 includes a motor 41, the motor 41 is fixedly connected to the outer wall of the frame 1, a driving wheel 44 is rotatably connected to the bottom of the motor 41, a driven wheel 43 is rotatably connected to the outer wall of the shielding cover 3, a transmission belt 42 is sleeved on the outer walls of the driven wheel 43 and the driving wheel 44, and a cutting blade 45 is fixedly connected to the bottom of the driven wheel 43 and at the position of the bottom of the shielding cover 3;

[0044] When the motor 41 is powered on and started, it will drive the rotation of the driving wheel 44. The driving wheel 44 and the driven wheel 43 are sleeved by the transmission belt 42. Therefore, during the rotation process, it will drive the rotation of the cutting blade 45 at the bottom of the driven wheel 43, and then weed. The arrangement of the transmission belt 42 between the driven wheel 43 and the driving wheel 44 avoids the direct drive of the cutting blade 45 by the driving wheel 44 when the cutting blade 45 gets stuck on relatively hard grass.

[0045] The self - propelled assembly 5 includes a driving component 55, the driving component 55 is fixedly connected to the outer wall of the frame 1, a driving roller 54 is rotatably connected to the outer wall of the driving component 55, a driven roller 51 and a driving roller 53 are also rotatably connected to the outer wall of the frame 1, and a chain belt 52 is sleeved on the outer walls of the driven roller 51, the driving roller 53 and the driving roller 54;

[0046] When the driving component 55 is powered on and started, it will drive the rotation of the driving roller 54. The chain belt 52 is sleeved on the driving roller 54, the driven roller 51 and the driving roller 53. Then it will drive the rotation of the chain belt 52, so that the chain belt 52 cooperates with the rolling wheel 2 to drive the movement of the whole device. By adjusting the steering degree of the rolling wheel 2, the moving direction is controlled, and then the cutting blade 45 performs self - propelled weeding.

[0047] The driving roller 53 is fixedly connected to the end of the first rotating roller 61;

[0048] The chain belt 52 is arranged at the front position. At this time, the rotation of the chain belt 52 drives the rotation of the driving roller 53, and then drives the rotation of the first rotating roller 61. During the rotation of the first rotating roller 61, it will drive the rotation of the rotating belt 62. The arrangement of the rotating belt 62 will squeeze the grass, so that the taller grass is squeezed and bent. During the movement, when the telescoping machine 66 is powered on and started, it will press down the second rotating roller 64 through the connection of the first spring 65, and then drive the second rotating roller 64 to rise. During the repeated process, the rotating belt 62 will continuously press down on the grass, so that the grass with a harder root system is broken. The rotating belt 62 is inclined, which will also guide the grass to be broken by the rotating belt 62.

[0049] Embodiment 2, please refer to Figures 1-8 , on the basis of Embodiment 1, the present invention provides a technical solution:

[0050] A guiding mechanism 7 is also fixedly connected to the outer wall of the frame 1.

[0051] The guiding mechanism 7 includes a blower 73 which is fixedly connected to the outer wall of the frame 1. A corrugated pipe 74 is fixedly connected to the bottom of the blower 73. A gas flow chamber 76 is fixedly connected to the bottom of the corrugated pipe 74. A second spring 75 is fixedly connected between the outer wall of the gas flow chamber 76 and the outer wall of the frame 1. A filter plate 79 is fixedly connected to the bottom of the gas flow chamber 76.

[0052] The second spring 75, the blower 73 and the discharge pipe 72 are all fixedly connected to the outer wall of the frame 1 through a second bracket 71.

[0053] A first raised block 77 is fixedly connected to the top of the gas flow chamber 76. A second raised block 78 is fixedly connected to the bottom of the driving wheel 44. The second raised block 78 is in movable contact with the first raised block 77.

[0054] The guiding mechanism 7 is arranged at the rear position of the pressing mechanism 6. When the blower 73 is powered on and started, it will suck air through the gas flow chamber 76, and the air flow will guide the grass on the ground to rise a certain distance, which is convenient for the subsequent cutting edge 45 to cut. A filter plate 79 is arranged at the bottom of the gas flow chamber 76 to intercept larger grass. Smaller grass and impurities are sucked by the blower 73 and then discharged rearward through the discharge pipe 72, reducing the impurities in the grass and providing convenient conditions for the subsequent cutting of the cutting edge 45.

[0055] The corrugated pipe 74 is made of an elastic material, and the gas flow chamber 76 is connected to the second bracket 71 through the second spring 75. During the rotation of the driving wheel 44, it will drive the rotation of the second raised block 78. When the second raised block 78 rotates to the position of the first raised block 77, the collision between the two will drive the shaking of the gas flow chamber 76, so that the grass and impurities adhering to the bottom of the filter plate 79 will fall off, reducing the blockage of the filter plate 79.

[0056] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A self-propelled field weeder, comprising a frame (1), characterized in that: The outer wall of the frame (1) is fixedly connected to a shielding cover (3), the outer wall of the frame (1) is also rotatably connected to a rolling wheel (2), the outer wall of the frame (1) is fixedly connected to a cutting assembly (4), the outer wall of the frame (1) is fixedly connected to a self-propelled assembly (5) at a position on the left side of the cutting assembly (4), and the outer wall of the frame (1) is fixedly connected to a pressing mechanism (6); The pressing mechanism (6) comprises: A telescopic machine (66), wherein the telescopic machine (66) is fixedly connected to an outer wall of the frame (1); A first spring (65), the first spring (65) being movably connected to the bottom of the telescopic machine (66); a second rotating roller (64), one end of the second rotating roller (64) being rotatably connected to the bottom of the first spring (65); A rotating belt (62) is sleeved on an outer wall of a second rotating roller (64).

2. A self-propelled field weeder according to claim 1, characterized in that: The telescopic machine (66) is rotatably connected to the outer wall of the frame (1) via a first bracket (67), and the second rotating roller (64) is rotatably connected to the first spring (65) via a bearing (63).

3. A self-propelled field weeder according to claim 2, characterized in that: The cutting assembly (4) comprises a motor (41), the motor (41) being fixedly connected to the outer wall of the frame (1), the bottom of the motor (41) being rotatably connected to a driving wheel (44), the outer wall of the shielding cover (3) being rotatably connected to a driven wheel (43), the outer walls of the driven wheel (43) and the driving wheel (44) being sleeved with a transmission belt (42), and the bottom of the driven wheel (43) being fixedly connected to a cutting blade (45) at a position located at the bottom of the shielding cover (3).

4. A self-propelled field weeder according to claim 3, characterized in that: The self-propelled assembly (5) comprises a driving component (55), wherein the driving component (55) is fixedly connected to the outer wall of the frame (1), the outer wall of the driving component (55) is rotatably connected to a driving roller (54), and the outer wall of the frame (1) is also rotatably connected to a driven roller (51) and a driving roller (53), and the outer walls of the driven roller (51), the driving roller (53) and the driving roller (54) are sleeved with a chain belt (52).

5. A self-propelled field weeder according to claim 4, characterized in that: The driving roller (53) is fixedly connected to the end of the first rotating roller (61).

6. A self-propelled field weeder according to claim 5, characterized in that: The outer wall of the frame (1) is also fixedly connected with a guide mechanism (7).

7. A self-propelled field weeder according to claim 6, characterized in that: The guide mechanism (7) comprises a fan (73), the fan (73) being fixedly connected to the outer wall of the frame (1), the bottom of the fan (73) being fixedly connected to a zigzag tube (74), the bottom of the zigzag tube (74) being fixedly connected to an airflow bin (76), a second spring (75) being fixedly connected between the outer wall of the airflow bin (76) and the outer wall of the frame (1), and the bottom of the airflow bin (76) being fixedly connected to a filter plate (79).

8. The self-propelled field weeder according to claim 7, characterized in that: The second spring (75), the fan (73) and the discharge pipe (72) are all fixedly connected to the outer wall of the frame (1) via a second bracket (71).

9. A self-propelled field weeder according to claim 8, characterized in that: The top of the airflow bin (76) is fixedly connected to a first protruding block (77), and the bottom of the driving wheel (44) is fixedly connected to a second protruding block (78), wherein the second protruding block (78) is in active contact with the first protruding block (77).

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