Mini-tiller

Abstract

The utility model discloses a micro plough, belongs to the agricultural machinery technical field. Including the fixed frame, the fixed frame four corners are equipped with the wheel, and the fixed frame lower part is equipped with the stone detection device and the liftable rotary tillage mechanism, and the fixed frame top is equipped with the power mechanism of drive rotary tillage mechanism rotation and the control mechanism of control rotary tillage mechanism work, and the stone detection mechanism includes the retainer frame of installation in the fixed frame both sides, is equipped with the guide slot on the inner side wall of retainer frame, and the sliding block is slidably embedded in the guide slot, and the rotary drum is rotatably connected on the sliding block, and the top rod is equipped on the rotary drum, and the spring that can make the sliding block press down is connected and installed between the sliding block and the fixed frame, and the trigger rod that can elastically extend is connected and installed on the sliding block, and the button corresponding trigger rod is set up on the fixed frame, and when triggering the button, the control mechanism can make rotary tillage mechanism lift and delay a period of time and then fall down again. Can avoid the big stone damage rotary tillage mechanism, avoid the delay of the farm time because of the maintenance, can reduce the cost and increase the benefit, prolong the service life.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically a miniature tillage machine. Background Technology

[0002] Currently, land is cultivated using tillage machines, which are practical agricultural machines that can completely replace oxen. These machines are suitable not only for hilly areas but also for large-scale inter-row cultivation and hilling of crops such as wheat, rapeseed, and cotton on plains.

[0003] Tillers are widely used because they have strong soil-breaking capabilities and can flatten the ground after tilling. They can also chop up root stubble buried below the surface, making it easier for seeders to operate and providing a good seedbed for later sowing.

[0004] The soil also contains many stones. Small stones cannot damage the blades of the tiller, but if the stones hidden in the soil are too large, they will damage the rotary tiller blades, and in severe cases, even damage the power components, affecting production operations, making it difficult to seize the planting season, and causing losses. Utility Model Content

[0005] To address the problem that existing tillage machines cannot detect stones in the soil, and that the rotary tillage blades are easily damaged by colliding with stones during tillage and loosening, thus affecting production, this utility model provides a miniature tillage machine.

[0006] This utility model is achieved through the following technical solution: A miniature tiller includes a fixed frame with wheels at the four corners that enable its movement. A stone detection mechanism is located on the lower part of one side of the fixed frame, and a liftable rotary tillage mechanism is connected and installed on the other side. A power mechanism for driving the rotary tillage mechanism to rotate and a control mechanism for controlling the movement of the rotary tillage mechanism are located on the top of the fixed frame. The stone detection mechanism includes a retainer connected to both sides of a fixed frame. A guide groove is provided on the inner wall of the retainer, and a slider is slidably embedded within the guide groove. A roller capable of rolling and supporting the ground is rotatably connected between the two sliders. Several push rods are provided on the circumference of the roller. A spring is connected and installed between the slider and the fixed frame to provide downward elastic support for the slider. A trigger rod capable of elastic extension and retraction is connected and installed on the slider. A button corresponding to the trigger rod is provided on the fixed frame, and the button is electrically connected to the control mechanism. When the button is triggered, the control mechanism can control the rotary tillage mechanism to rise and then fall after a delay.

[0007] A further improvement of this utility model is that the power mechanism includes an engine, a hydraulic oil tank, and a hydraulic pump. The engine output drives the hydraulic pump to establish oil pressure, and the hydraulic oil tank supplies oil to the hydraulic pump through an oil pipe.

[0008] A further improvement of this utility model is that the rotary tillage mechanism includes a first support and a second support connected to both sides of the fixed frame. A connecting rod is rotatably connected to the first support, and a rotating shaft is rotatably connected between the two connecting rods. A fixed disc with an even number of holes around its circumference is connected to the rotating shaft. A cutting tooth with half the number of holes is bolted to the fixed disc. A hydraulic motor that drives the rotating shaft to rotate is provided on the connecting rod. The output end of the hydraulic motor is connected to the rotating shaft. A third support is provided at the end of the connecting rod away from the first support. A hydraulic telescopic rod is rotatably connected between the second support and the third support. A hydraulic pump provides power to the hydraulic motor and the hydraulic telescopic rod through an oil pipe.

[0009] A further improvement of this utility model is that a hydraulic lifting rod capable of raising and lowering the fixed frame is connected and installed between the fixed frame and the wheel.

[0010] A further improvement of this utility model is that a dust cover is connected and installed on the connecting rod.

[0011] A further improvement of this invention is that each wheel is equipped with an independent motor to drive the wheel's movement.

[0012] A further improvement of this utility model is that both the power mechanism and the control mechanism are located above the detection mechanism 3.

[0013] As can be seen from the above technical solutions, the beneficial effects of this utility model are: In operation, the wheels drive the fixed frame to move, which in turn drives the roller to roll along the ground, causing the push rod to continuously penetrate the soil. The rotary tillage mechanism continuously breaks up the soil. When encountering large stones in the soil that could damage the rotary tillage mechanism, the push rod will be blocked by the stone and unable to move downwards. This will then push the roller to move upwards along the guide groove on the slider, triggering the trigger lever to press the button. The control mechanism will then lift the rotary tillage mechanism upwards, stopping it from breaking up the soil. After the rotary tillage mechanism passes over the soil with stones, it will fall back down to break up the soil again. This prevents large stones in the soil from damaging the rotary tillage mechanism, avoids delays in farming due to maintenance, improves sowing efficiency, reduces maintenance costs, and extends the service life of the tiller. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0017] In the attached diagram: 1. Fixed frame, 2. Wheel, 21. Hydraulic lifting rod, 22. Motor, 3. Stone detection mechanism, 31. Holder, 311. Guide groove, 32. Slider, 33. Roller, 331. Top rod, 34. Spring, 35. Trigger rod, 36. Button, 4. Rotary tillage mechanism, 41. First support, 42. Connecting rod, 43. Rotary shaft, 44. Fixed plate, 45. Cutting teeth, 46. Hydraulic motor, 47. Second support, 48. Third support, 49. Hydraulic telescopic rod, 5. Power mechanism, 51. Engine, 52. Hydraulic oil tank, 53. Hydraulic pump, 54. Oil pipe, 6. Control mechanism, 7. Dust cover. Detailed Implementation

[0018] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0019] like Figure 1-2 As shown, a miniature tiller includes a square frame 1, with wheels 2 at the four corners of the frame 1 that can support and move the frame 1, a stone detection mechanism 3 at the lower front of the frame 1 that can detect whether there are large stones in the soil, a liftable rotary tillage mechanism 4 connected to the other side of the frame 1 away from the stone detection mechanism 3, and a power mechanism 5 that drives the rotary tillage mechanism 4 to rotate and a control mechanism 6 that controls the movement of the rotary tillage mechanism 4 above the frame 1. The stone detection mechanism 3 includes a retainer 31 connected to both sides of the fixed frame 1. Vertical guide grooves 311 are provided on the inner side walls of the retainer 31. A slider 32 is slidably embedded in the guide grooves 311. A roller 33, capable of rolling and supporting the ground, is rotatably connected between the two sliders 32. Several push rods 331, capable of inserting into the soil, are provided on the circumference of the roller 33. The push rods 331 have sufficient strength to support the roller 33 when encountering a stone. The depth to which the push rods 331 penetrate the soil is greater than the depth to which the rotary tillage mechanism 4 can loosen the soil. A spring 34, capable of elastically supporting the slider 32 downwards, is connected and installed between the slider 32 and the fixed frame 1. A retractable trigger rod 35 is installed on the upper part of the frame. The trigger rod 35 is composed of a double-layered nested structure with a compression spring in the middle. A button 36 corresponding to the trigger rod 35 is provided on the fixed frame 1. When the trigger rod 35 contacts the button 36, it will press the button 36. As the trigger rod 35 continues to move upward, it retracts, keeping the button 36 pressed down. The button 36 is electrically connected to the control mechanism 6. When the button 36 is triggered, the control mechanism 6 can control the rotary tillage mechanism 4 to rise and then fall again after a delay. To prevent false triggering, the button 36 can be set to take effect only after a certain period of time, and the delay time is positively correlated with the travel speed of the wheel 2.

[0020] In use, wheel 2 drives fixed frame 1 to move forward along the field (with the side where stone detection mechanism 3 is located as the front). Fixed frame 1 drives roller 33 to roll along the ground. Under the combined action of spring 34 and its own weight, push rod 331 is continuously inserted into the ground to detect whether there are large stones. Rotary tillage mechanism 4 continuously breaks up the soil that has been detected without large stones. When encountering a large stone in the soil that could damage rotary tillage mechanism 4, push rod 331 will hit the stone and cannot move further downward. This will then react on roller 33, causing roller 33 to move along guide groove 311 on slider 32. Move upwards, and then move the trigger lever 35 upwards to press the button 36. The button 36 transmits a signal to the control mechanism 6, which controls the rotary tillage mechanism 4 to lift upwards, stopping it from breaking up the soil. After the rotary tillage mechanism 4 passes over soil with stones, it falls back down to break up the soil. By detecting larger stones in the soil, the rotary tillage mechanism 4 is controlled to rise and stop breaking up the soil. This can prevent larger stones in the soil from damaging the rotary tillage mechanism 4, avoid delays in farming due to maintenance, improve sowing efficiency, reduce maintenance costs, and extend the service life of the tiller.

[0021] The power mechanism 5 includes a diesel engine 51, a hydraulic oil tank 52, and a hydraulic pump 53. The output of the engine 51 drives the hydraulic pump 53 to establish oil pressure, and the hydraulic oil tank 52 supplies oil to the hydraulic pump 53 through an oil pipe 54. Hydraulic transmission can output a large torque, adapt to the harsh working environment of farmland, and has the ability to transmit power over long distances. Furthermore, it eliminates the cumbersome mechanical rotation transmission system of traditional methods, making maintenance simple and cost-effective, thus improving work efficiency.

[0022] It should be noted that various hydraulic components are controlled by electromagnetic directional valves, and the hydraulic system is equipped with relief valves and throttle valves to ensure the normal operation of the hydraulic system and to complete the corresponding actions according to the predetermined rhythm.

[0023] The liftable rotary tillage mechanism 4 includes a first support 41 and a second support 47 with downward-facing openings on both sides of the fixed frame 1, which are welded together. The first support 41 is located in front of the second support 47. A connecting rod 42 is rotatably connected to each of the two first supports 41. A rotating shaft 43 is rotatably connected between the two connecting rods 42. Three fixed discs 44 with 20 evenly distributed holes around their circumferences are evenly connected to the rotating shaft 43. Ten blades 45 are bolted to the fixed discs 44, and the blades 45 are spaced apart. The rotary tiller 4 is arranged in a manner distributed on both sides of the fixed plate 44. Hydraulic motors 46, which jointly drive the rotating shaft 43, are mounted on the outer sides of both connecting rods 42. The output end of the hydraulic motor 46 is connected to the rotating shaft 43. A third support 48, perpendicular to the connecting rod 42, is located on the side wall away from the first support 41. A retractable hydraulic telescopic rod 49 is rotatably connected between the second support 47 and the third support 48. The hydraulic cylinder and hydraulic pump 53 provide power to the hydraulic motors 46 and the hydraulic telescopic rod 49 through oil pipes. This simple hydraulic telescopic structure drives the rotary tiller 4 to rise and fall quickly, preventing the rotary tiller 4 from rising too slowly and encountering stones, thus avoiding damage and impacting agricultural production. The hydraulic motor 46 has a simple structure, can output large torque, improves the efficiency and quality of soil pulverization, and can adapt to various soil textures.

[0024] The fixed frame 1 and the wheels 2 are both connected and installed with hydraulic lifting rods 21 that enable the fixed frame 1 to be raised and lowered. The raiseable hydraulic lifting rods 21 can lift the fixed frame 1, allowing the fixed frame 1 to raise the stone detection mechanism 3 and the rotary tillage mechanism 4, so that it can be moved when agricultural production operations are not required.

[0025] A dust cover 7 is connected and installed on the connecting rod 42. When the rotary tillage mechanism 4 loosens and breaks up soil, it stirs up soil, causing dust pollution and covering the tiller, affecting its normal operation. It also prevents splashed sand from injuring people. The dust cover 7 can be equipped with a spring-loaded flexible connection at its upper end that can rotate around the connecting rod 42. This reduces machine vibration caused by the stirred-up soil, increases dust protection, prevents the dust cover 7 from re-compacting loose soil, and also reduces rolling resistance.

[0026] Each wheel 2 is equipped with an independent motor 22 that drives its movement. The motor 22 is integrated with the wheel hub. Excess power from the engine 51 is used to generate electricity, which is stored in the battery to drive the wheels 2. This allows the tiller to move autonomously. The positioning and navigation control system can automatically control the wheels 2. The four-wheel independent drive allows the two wheels 2 to move in opposite directions, enabling U-turns on the spot. This greatly reduces the turning radius, minimizes time wasted on U-turns, and improves tillage efficiency.

[0027] Both the power mechanism 5 and the control mechanism 6 are located above the detection mechanism 3. Because the stone detection mechanism 3 requires a certain downward pressure to insert the top rod 331 into the soil to detect whether the soil contains stones, placing the power mechanism 5 and the control mechanism 6 above the stone detection mechanism 3, due to their own large weight, can provide a large downward pressure for the stone detection mechanism 3, and can successfully complete the task of detecting stones in the soil.

[0028] In use, the tiller is moved to the soil where soil breaking is required via wheels 2. The engine 51 is started, and the hydraulic lifting rod 21 is lowered, allowing the push rod 331 to insert into the soil. The hydraulic motor 46 is started, driving the shaft 43 to rotate the blades 45. As the wheels 2 move forward, the rotating blades 45 break up the soil. When encountering large stones in the soil, the push rod 331 will block against the stones and cannot continue to penetrate. This pushes the roller 33, causing the slider 32 to slide upwards, compressing the spring 34. The trigger rod 35 on the slider 32 will then touch the button 36. As the slider 32 moves further upwards, the trigger rod... The rotary tiller 45 retracts, pressing against button 36, transmitting a trigger signal to control system 6. Control system 6 processes the signal and transmits it to the solenoid directional valve, causing the hydraulic telescopic rod 49 to retract, lifting the rotary tiller 4 away from the soil. This prevents further soil breaking and collisions with stones, which could damage the blades 45 or even the transmission system. Based on the corresponding speed, once the soil containing stones has been cleared, the rotary tiller 4 is lowered again to continue breaking and loosening the soil. In areas with stones, manual digging is required to remove them, ensuring the soil is clean and preventing damage to the machine during subsequent tillage. The stone detection mechanism 3 can detect larger stones in the soil, preventing damage from collisions with large stones, thus benefiting agricultural production and reducing maintenance costs.

[0029] The control mechanism 6 uses an electromagnetic directional valve for hydraulic control, and is controlled by a common PLC, such as the Siemens PLC S7-200 SMART series. By setting the corresponding program and operation input instructions, the electromagnetic directional valve is controlled to achieve automatic control of the tillage machine's operation.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A miniature tillage machine, comprising a fixed frame (1), wherein the fixed frame (1) is provided with wheels (2) at its four corners that enable it to move, characterized in that, A stone detection mechanism (3) is provided on the lower part of one side of the fixed frame (1), and a liftable rotary tillage mechanism (4) is connected and installed on the other side. A power mechanism (5) for driving the rotary tillage mechanism (4) to rotate and a control mechanism (6) for controlling the action of the rotary tillage mechanism (4) are provided on the upper part of the fixed frame (1). The stone detection mechanism (3) includes a retainer (31) connected and installed on both sides of the fixed frame (1). The inner side wall of the retainer (31) is provided with a guide groove (311). A slider (32) is slidably embedded in the guide groove (311). A roller (33) that is supported on the ground is rotatably connected between the two sliders (32). Several top rods (331) are provided on the circumference of the roller (33). A spring (34) that provides elastic support for the slider (32) is connected and installed between the slider (32) and the fixed frame (1). A trigger rod (35) that can elastically extend and retract is connected and installed on the slider (32). A button (36) corresponding to the trigger rod (35) is provided on the fixed frame (1). The button (36) is electrically connected to the control mechanism (6). When the button (36) is triggered, the control mechanism (6) can control the rotary tillage mechanism (4) to rise and fall after a delay.

2. The miniature tiller according to claim 1, characterized in that, The power mechanism (5) includes an engine (51), a hydraulic oil tank (52) and a hydraulic pump (53). The output end of the engine (51) drives the hydraulic pump (53) to establish oil pressure. The hydraulic oil tank (52) supplies oil to the hydraulic pump (53) through the oil pipe (54).

3. The miniature tiller according to claim 2, characterized in that, The rotary tillage mechanism (4) includes a first support (41) and a second support (47) connected to both sides of the fixed frame (1). A connecting rod (42) is rotatably connected to the first support (41). A rotating shaft (43) is rotatably connected between the two connecting rods (42). A fixed plate (44) with an even number of holes around its circumference is connected to the rotating shaft (43). A cutting tooth (45) with half the number of holes is bolted to the fixed plate (44). A hydraulic motor (46) that drives the rotating shaft (43) to rotate is provided on the connecting rod (42). The output end of the hydraulic motor (46) is connected to the rotating shaft (43). A third support (48) is provided at the end of the connecting rod (42) away from the first support (41). A hydraulic telescopic rod (49) is rotatably connected between the second support (47) and the third support (48). A hydraulic pump (53) provides power to the hydraulic motor (46) and the hydraulic telescopic rod (49) through an oil pipe.

4. The miniature tiller according to claim 1 or 3, characterized in that, A hydraulic lifting rod (21) that enables the fixed frame (1) to be raised and lowered is connected and installed between the fixed frame (1) and the wheel (2).

5. The miniature tiller according to claim 4, characterized in that, A dust cover (7) is connected and installed on the connecting rod (42).

6. The miniature tiller according to claim 4, characterized in that, All wheels (2) are equipped with motors (22) that independently drive the movement of the wheels.

7. The miniature tiller according to claim 1, characterized in that, The power mechanism (5) and the control mechanism (6) are both located above the stone detection mechanism (3).

Images