Four-wheel-drive mini-tiller applied to various working environments

Abstract

The invention relates to the technical field of mini-tillers, in particular to a four-wheel drive mini-tiller applied to various working environments. A body is included; turning wheels and wheels are mounted on the two sides of the machine body; the turning wheel is located at the front end of the machine body. The wheels are located at the rear end of the machine body. The upper end of the machine body is fixedly connected with a handlebar; the upper end of the machine body is rotationally connected with a mounting frame; a hydraulic push rod is arranged between the mounting frame and the machine body; by arranging the mounting frame, the hydraulic push rod is controlled to push the mounting frame to rotate at the upper end of the machine body, so that the mounting frame drives the driving motor to rotate synchronously, and the gravity centers of the mounting frame and the driving motor at the upper end of the machine body are shifted, so that the gravity center height of the four-wheel-drive mini-tiller during hillside operation is effectively reduced; according to the four-wheel-drive mini-tiller, the risk of rollover of the four-wheel-drive mini-tiller caused by gravity deviation is greatly reduced, the stability of the four-wheel-drive mini-tiller in sloping field operation is guaranteed, then the operation environment adaptability of the four-wheel-drive mini-tiller is expanded, and the actual application range of the four-wheel-drive mini-tiller is widened.

Description

Technical Field

[0001] The invention relates to the technical field of micro-tillage machines, in particular to a four-wheel drive micro-tillage machine applicable to various working environments. Background Art

[0002] A tiller typically consists of an engine, rotor, transmission system, travel system, and control system. The engine provides power, the rotor performs tillage operations, the transmission system transmits the engine's power to the rotor, the travel system drives the tiller forward and backward, and the control system controls the tiller's operation.

[0003] Existing micro-tillers can be divided into two types according to the different driving modes: two-wheel drive micro-tillers and four-wheel drive micro-tillers. Among them, the four-wheel drive micro-tiller refers to a machine with four drive wheels, which gives the four-wheel drive micro-tiller an obvious advantage in traction and stability, especially when operating on plains or large fields, and can provide stronger traction and stability.

[0004] Although the four-wheel drive micro-tiller has strong driving capabilities and is suitable for driving and operating in complex terrain, its overall weight is relatively large due to the four-wheel drive system, which becomes a disadvantage in slope operations. This is because the terrain of the hillside is complex and undulating, and the operating environment is relatively harsh. On mountainous areas with steep slopes, the four-wheel drive micro-tiller with a high center of gravity is prone to rollover due to gravity offset, increasing the safety risk of the four-wheel drive micro-tiller operating on hilly terrain.

[0005] In view of this, in order to overcome the above technical problems, the present invention proposes a four-wheel drive micro-tillage machine applicable to a variety of working environments, which solves the above technical problems. Summary of the Invention

[0006] In order to make up for the shortcomings of the existing technology, the present invention proposes a four-wheel drive micro-tiller that can be used in a variety of working environments. The present invention provides a mounting frame, and controls the hydraulic push rod to push the mounting frame to rotate at the upper end of the machine body, so that the mounting frame drives the drive motor to rotate synchronously, so that the center of gravity of the mounting frame and the drive motor at the upper end of the machine body is offset, thereby effectively reducing the center of gravity height of the four-wheel drive micro-tiller when operating on a hillside, greatly reducing the risk of the four-wheel drive micro-tiller rolling over due to gravity offset, ensuring the stability of the four-wheel drive micro-tiller in slope operations, and thus expanding the adaptability of the four-wheel drive micro-tiller to the working environment and improving the practical application scope of the present invention.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: the four-wheel drive micro-tillage machine described in the present invention, which is applicable to various working environments, comprises a machine body; turning wheels and wheels are installed on both sides of the machine body; the turning wheels are located at the front end of the machine body; the wheels are located at the rear end of the machine body; a handlebar is fixedly connected to the upper end of the machine body; a mounting frame is rotatably connected to the upper end of the machine body; a hydraulic push rod is provided between the mounting frame and the machine body; one end of the hydraulic push rod is rotatably connected to the machine body, and the other end is rotatably connected to the mounting frame; a drive motor is fixedly installed inside the mounting frame; the drive The output end of the motor is fixedly connected to a connecting gear; two cavities are opened inside the body; a first bevel gear ring and a second bevel gear ring are arranged inside the two cavities; the first bevel gear ring is fixedly connected to the axle of the turning wheel; the second bevel gear ring is fixedly connected to the axle of the wheel; the lower end of the body is rotatably connected to a bevel gear shaft; the two ends of the bevel gear shaft are respectively meshed with the first bevel gear ring and the second bevel gear ring; a spur gear is fixedly connected to the surface of the bevel gear shaft; the spur gear and the connecting gear are meshed through a transmission gear; the transmission gear is rotatably connected to the body.

[0008] Preferably, support wheels are provided on both sides of the machine body; a support rod is fixedly connected to one end of the support wheel close to the machine body; the support rod is rotatably connected to the machine body through a torsion spring; and the support rod is connected to the drive motor through a stretching unit.

[0009] Preferably, the stretching unit includes a steel wire rope; a rectangular groove is provided at the output end of the driving motor; a connecting rod is slidably connected in the rectangular groove; the connecting rod is connected to the bottom of the rectangular groove by a connecting spring; an electromagnetic plate is inlaid at the bottom of the rectangular groove; a swivel is provided on the surface of the connecting rod; the swivel is rotatably connected to the mounting frame; one end of the steel wire rope is connected to the support rod, and the other end is connected to the swivel; a slot is provided on the surface of the connecting gear to match the connecting rod; a protrusion is fixed to the surface of the connecting rod; and a slot is provided on the surface of the swivel to match the protrusion.

[0010] Preferably, a mounting groove is provided at the upper end of the body; a protective shell is installed in the mounting groove.

[0011] Preferably, the turning wheel includes a wheel body and a turning blade; a circular groove is provided on the surface of the wheel body; a mounting post is rotatably connected in the circular groove; the mounting post is fixedly connected to the turning blade; a groove is provided inside the wheel body; a worm gear is provided in the groove; the worm gear is fixedly connected to the mounting post; a worm is rotatably connected to one side of the wheel body; the worm gear is engaged with the worm wheel.

[0012] Preferably, one side of the wheel body is rotatably connected to a driving gear; the surface of the worm is slidably connected to a driven gear; the driving gear is meshed with the driven gear; a fixed spring is sleeved on the surface of the worm; one end of the fixed spring is connected to the worm, and the other end is connected to the driven gear; an electromagnetic ring is inlaid on the surface of the wheel body.

[0013] Preferably, a cover plate is installed on one side of the wheel body; the surface of the cover plate and the protective shell are both coated with a PTFE material.

[0014] Preferably, a rubber block is fixedly connected to the lower end of the lathe; the rubber block is made of fluororubber material.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present invention provides a mounting frame, and controls the hydraulic push rod to push the mounting frame to rotate on the upper end of the machine body, so that the mounting frame drives the drive motor to rotate synchronously, so that the center of gravity of the mounting frame and the drive motor at the upper end of the machine body is offset, thereby effectively reducing the center of gravity height of the four-wheel drive micro-tiller when operating on a hillside, greatly reducing the risk of the four-wheel drive micro-tiller turning over due to gravity offset, ensuring the stability of the four-wheel drive micro-tiller in slope operations, and further expanding the adaptability of the four-wheel drive micro-tiller to the working environment, thereby improving the practical application scope of the present invention.

[0017] 2. The present invention provides a worm wheel and a worm, so that the user can drive the worm wheel to rotate by rotating the worm, so that the worm wheel drives the lathe to rotate through the mounting column connected thereto, thereby adjusting the inclination angle of the lathe, so that the lathe after adjusting the inclination angle can effectively operate on cultivated land with different soil conditions, and there is no need to directly replace the lathe wheel, which not only reduces the production cost of replacing the lathe wheel, but also reduces the time for disassembly and replacement of the lathe wheel, reduces the labor intensity of the operator, and improves the efficiency of the cultivated land operation of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 It is a perspective view of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the present invention;

[0021] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 Schematic diagram of the transmission of the turning wheel used in the present invention;

[0023] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0024] In the figure: 1, body; 11, turning wheel; 111, wheel body; 112, turning blade; 113, circular groove; 114, mounting column; 115, groove; 116, worm gear; 117, worm; 12, wheel; 13, handlebar; 14, hydraulic push rod; 15, cavity; 151, No. 1 bevel gear ring; 152, No. 2 bevel gear ring; 153, bevel gear shaft; 154, spur gear; 155, transmission gear; 16, support wheel; 161, support Support rod; 162, wire rope; 17, mounting slot; 171, protective shell; 2, mounting frame; 21, drive motor; 22, connecting gear; 221, slot; 23, rectangular slot; 231, connecting rod; 232, connecting spring; 233, electromagnetic sheet; 234, protrusion; 24, swivel; 241, slot; 3, driving gear; 31, driven gear; 32, fixing spring; 33, electromagnetic ring; 34, cover plate; 35, rubber block. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figures 1 to 5 As shown, the four-wheel drive micro-tillage machine applied to various working environments described in the present invention comprises a machine body 1; turning wheels 11 and wheels 12 are installed on both sides of the machine body 1; the turning wheel 11 is located at the front end of the machine body 1; the wheels 12 are located at the rear end of the machine body 1; the upper end of the machine body 1 is fixedly connected with a handlebar 13; the upper end of the machine body 1 is rotatably connected to a mounting frame 2; a hydraulic push rod 14 is provided between the mounting frame 2 and the machine body 1; one end of the hydraulic push rod 14 is rotatably connected to the machine body 1, and the other end is rotatably connected to the mounting frame 2; a drive motor 21 is fixedly installed inside the mounting frame 2; the output end of the drive motor 21 is fixedly connected to a connecting gear 22; the machine Two cavities 15 are provided inside the body 1; a first bevel gear ring 151 and a second bevel gear ring 152 are provided inside the two cavities 15; the first bevel gear ring 151 is fixedly connected to the axle of the turning wheel 11; the second bevel gear ring 152 is fixedly connected to the axle of the wheel 12; a bevel gear shaft 153 is rotatably connected to the lower end of the body 1; the two ends of the bevel gear shaft 153 are respectively meshed with the first bevel gear ring 151 and the second bevel gear ring 152; a spur gear 154 is fixedly connected to the surface of the bevel gear shaft 153; the spur gear 154 is meshed with the connecting gear 22 through a transmission gear 155; the transmission gear 155 is rotatably connected to the body 1.

[0027] As an embodiment of the present invention, support wheels 16 are provided on both sides of the body 1; a support rod 161 is fixedly connected to one end of the support wheel 16 close to the body 1; the support rod 161 is rotationally connected to the body 1 through a torsion spring; the support rod 161 is connected to the drive motor 21 through a stretching unit.

[0028] As an embodiment of the present invention, the stretching unit includes a steel wire rope 162; a rectangular groove 23 is provided at the output end of the driving motor 21; a connecting rod 231 is slidably connected in the rectangular groove 23; the connecting rod 231 is connected to the bottom of the rectangular groove 23 by a connecting spring 232; an electromagnetic plate 233 is inlaid at the bottom of the rectangular groove 23; a swivel 24 is provided on the surface of the connecting rod 231; the swivel 24 is rotatably connected to the mounting frame 2; one end of the steel wire rope 162 is connected to the support rod 161, and the other end is connected to the swivel 24; a slot 221 is provided on the surface of the connecting gear 22 for matching with the connecting rod 231; a protrusion 234 is fixed to the surface of the connecting rod 231; a slot 241 is provided on the surface of the swivel 24 for matching with the protrusion 234.

[0029] As an embodiment of the present invention, a mounting groove 17 is formed at the upper end of the body 1 ; a protective shell 171 is installed in the mounting groove 17 .

[0030] When working, although the existing four-wheel drive micro-tiller has strong driving ability and is suitable for driving and operating in complex terrain, it is equipped with a four-wheel drive system, which makes the overall weight heavier. This becomes a disadvantage in slope operations. This is because the terrain of the hillside is complex and undulating, and the working environment is relatively harsh. On mountainous areas with steep slopes, four-wheel drive micro-tillers with a high center of gravity are prone to rollover due to gravity offset, increasing the safety risk of four-wheel drive micro-tillers operating on hillside terrain.

[0031] To this end, the present invention provides a mounting frame 2, and controls the hydraulic push rod 14 to push the mounting frame 2 to rotate at the upper end of the machine body 1, so that the mounting frame 2 drives the drive motor 21 to rotate synchronously, so that the center of gravity of the mounting frame 2 and the drive motor 21 at the upper end of the machine body 1 is offset, thereby effectively reducing the center of gravity height of the four-wheel drive micro-tiller when operating on a hillside, greatly reducing the risk of the four-wheel drive micro-tiller rolling over due to gravity offset, ensuring the stability of the four-wheel drive micro-tiller in slope operations, and further expanding the adaptability of the four-wheel drive micro-tiller to the working environment, thereby improving the practical application scope of the present invention.

[0032] When in use, a controller is installed on the handlebar 13, which is used to control the operation of electric components such as the drive motor 21 and the hydraulic push rod 14. When the user pushes the body 1 to the hillside through the handlebar 13, the hillside is inclined, which makes the body 1 located on the slope of the hillside in an inclined state. At this time, the projection of the center of gravity of the body 1 will be biased toward the low slope side. If the projection of this center of gravity exceeds the outer edge of the support wheel 16, the micro-tillage machine will overturn.

[0033] The user can only support the body 1 with the shifted center of gravity through the handlebars 13 to prevent the body 1 from tipping over due to the shifted center of gravity. At this time, the user only needs to control the operation of the two hydraulic push rods 14, so that the lower hydraulic push rod 14 extends and the higher hydraulic push rod 14 contracts, so that the two hydraulic push rods 14 push the mounting frame 2 to rotate relative to the body 1, so that the rotating mounting frame 2 drives the drive motor 21 to rotate, so that the drive motor 21 deflects toward the upward side of the body 1, so that the center of gravity of the drive motor 21 is close to the upward side of the body 1, thereby causing the center of gravity to shift toward the high slope side. On the one hand, it reduces the center of gravity shift originally biased toward the low slope side, increases the lateral stability of the micro-tiller, prevents the projection of the center of gravity from exceeding the boundary of the support wheel 16, and thus avoids tipping over. On the other hand, the center of gravity is slightly biased toward the high slope side, which can enhance the body 1's resistance to lateral forces on the slope, avoid excessive tilting, and further reduce the risk of tipping over.

[0034] During the rotation of the mounting frame 2, the mounting frame 2 will drive the driving motor 21 to rotate synchronously. Since the transmission gear 155 is rotationally connected to the mounting frame 2, the driving motor 21 and the connecting gear 22 can rotate synchronously under the drive of the mounting frame 2. Since the cross-sectional shape of the mounting frame 2 is annular, and the mounting frame 2 and the transmission gear 155 are on the same axis, the rotating mounting frame 2 rotates around the transmission gear 155. At this time, the mounting frame 2 drives the connecting gear 22 to rotate relative to the transmission gear 155, that is, the transmission gear 155 and the connecting gear 22 are always in a state of mutual meshing. When the driving motor 21 deflects to the specified position, the driving motor 21 is controlled to run so that the driving motor 21 can drive the connecting gear 22 to rotate through the connecting rod 231, so that the connecting gear 22 can drive the transmission gear 155 meshed with it to rotate synchronously. 5 meshes with the spur gear 154, so that the rotating transmission gear 155 can drive the spur gear 154 to rotate, so that the spur gear 154 drives the bevel gear shaft 153 fixed to it to rotate, so that the rotating bevel gear shaft 153 drives the first bevel gear ring 151 and the second bevel gear ring 152 meshed at both ends to rotate synchronously, so that the first bevel gear ring 151 and the second bevel gear ring 152 respectively drive the wheel 12 and the turning wheel 11 connected thereto to rotate. Since the number of teeth of the first bevel gear ring 151 is less than the number of teeth of the second bevel gear ring 152, the speed of the first bevel gear ring 151 driven by the bevel gear shaft 153 is faster than the speed of the second bevel gear ring 152. When the second bevel gear ring 152 drives the machine body 1 to move by driving the wheel 12, the first bevel gear ring 151 near the handlebar 13 can quickly drive the turning wheel 11 to effectively plow the hillside.

[0035] In order to further lower the center of gravity of the machine body 1, the present invention sets a support wheel 16. When the hydraulic push rod 14 pushes the mounting frame 2 to rotate, the user controls the electromagnetic sheet 233 to energize, so that the electromagnetic sheet 233 can absorb the connecting rod 231 and squeeze the connecting spring 232 into the rectangular groove 23, so that the connecting rod 231 extends out of the slot 221. As the connecting rod 231 continues to enter the rectangular groove 23, the connecting rod 231 can drive the protrusion 234 fixed on the surface to approach the rotating ring 24 until the connecting rod 231 is separated from the connecting gear 22. At this time, the connecting rod 231 drives the protrusion 234 to contact the rotating ring 24, controlling the operation of the drive motor 21, so that the drive motor 21 can drive the connecting rod 231 to rotate, so that the connecting rod 231 can drive the protrusion 234 fixed on the surface to rotate synchronously, so that the protrusion 234 slides and contacts with it on one side of the rotating ring 24 until the rotating protrusion 234 is directly opposite to the slot 241. At this time, the protrusion 234 is no longer blocked by the rotating ring 24, so that the connecting rod 231 attracted by the electromagnetic sheet 233 continues to squeeze the connecting spring 232 into the rectangular groove 23, so that the connecting rod 231 drives the protrusion 234 on the surface to snap into the slot 241 on the side wall of the rotating ring 24, so that the connecting rod 231 is snapped with the rotating ring 24 through the protrusion 234, and continues to control the operation of the driving motor 21, so that the driving motor 21 can drive The movable connecting rod 231 drives the protrusion 234 to rotate, so that the connecting rod 231 pushes the groove wall of the card slot 241 through the protrusion 234 to drive the swivel 24 to rotate. Since the swivel 24 and the support wheel 16 are connected by the wire rope 162, the swivel 24 can pull the wire rope 162 fixed on the surface to wrap around its surface during the rotation, so that the wire rope 162 wrapped around the surface of the swivel 24 pulls the support wheel 16 connected to its other end to rotate downward. Since the support wheel 16 and the machine body 1 are rotatably connected by the torsion spring, the support wheel 16 pulled by the wire rope 162 can overcome the torsion of the torsion spring and rotate downward, so that the support wheels 16 on both sides of the machine body 1 can be connected to the The contact with the hillside ground makes the support wheel 16 on the downhill side share the lateral load when the micro-tiller tilts sideways, playing a "stabilizing" role to prevent the body 1 from further tipping over. In addition, the support wheel 16 is made of fluororubber material, so that the support wheel 16 not only has a certain elasticity to prevent the support wheel 16 from interfering with the drive of the wheel 12, but also has good wear resistance, which increases the service life of the support wheel 16. In addition, when the support wheel 16 rotates downward to contact the ground, the center of gravity of the support wheel 16 drops, which makes the center of gravity of the present invention drop, reducing the risk of the four-wheel drive micro-tiller rolling over due to gravity offset, thereby improving the stability of the four-wheel drive micro-tiller in slope operations.

[0036] The protective shell 171 is provided to protect the mounting frame 2 to prevent impurities such as soil and gravel from splashing onto the upper end of the body 1 during tillage, and to prevent impurities such as soil and gravel from falling between the transmission gear 155, the connecting gear 22 and the spur gear 154. It not only prevents impurities such as soil and gravel from blocking the meshing gaps of the transmission gear 155, the connecting gear 22 and the spur gear 154, but also prevents impurities such as soil and gravel from causing wear to the transmission gear 155, the connecting gear 22 and the spur gear 154, thereby improving the service life and transmission effect of the transmission gear 155, the connecting gear 22 and the spur gear 154.

[0037] As an embodiment of the present invention, the turning wheel 11 includes a wheel body 111 and a turning blade 112; a circular groove 113 is provided on the surface of the wheel body 111; a mounting post 114 is rotatably connected in the circular groove 113; the mounting post 114 is fixedly connected to the turning blade 112; a groove 115 is provided inside the wheel body 111; a worm gear 116 is provided in the groove 115; the worm gear 116 is fixedly connected to the mounting post 114; a worm 117 is rotatably connected to one side of the wheel body 111; the worm gear 117 is engaged with the worm wheel 116.

[0038] As an embodiment of the present invention, one side of the wheel body 111 is rotatably connected to a driving gear 3; the surface of the worm 117 is slidably connected to a driven gear 31; the driving gear 3 is meshed with the driven gear 31; a fixed spring 32 is sleeved on the surface of the worm 117; one end of the fixed spring 32 is connected to the worm 117, and the other end is connected to the driven gear 31; the surface of the wheel body 111 is inlaid with an electromagnetic ring 33.

[0039] As an embodiment of the present invention, a cover plate 34 is installed on one side of the wheel body 111; the surface of the cover plate 34 and the protective shell 171 are both coated with a PTFE material.

[0040] As an embodiment of the present invention, a rubber block 35 is fixedly connected to the lower end of the lathe 112; the rubber block 35 is made of fluororubber material.

[0041] When working, the lathe 112 on the lathe wheel 11 of different micro-tillers is often inclined, and its main purpose is to achieve functions such as efficient soil turning, soil crushing, propulsion, and stable machine operation. That is, the inclined setting of the lathe 112 can make the lathe 112 cut into the soil in an "oblique chopping" manner, thereby improving cutting efficiency and working fluency, and the inclined lathe 112 can roll the soil blocks upward after cutting into the soil, forming a soil turning action. In addition, when the inclined wheel cutter rotates, it generates an oblique reaction force on the soil. This part of the force will generate a forward thrust component, which is equivalent to the rotary tiller turning the soil while pushing the machine to crawl forward; however, the inclination angle of the lathe 112 on the lathe wheel 11 of the existing micro-tiller is not the same. This is because the inclination angle of the lathe 112 directly affects its soil entry method, cutting method and running resistance, and the physical properties of the soil (such as hardness, The difference in humidity, viscosity, structure) is large. Only by adjusting the inclination angle of the lathe 112 can efficient, stable and safe farming be achieved. For example, using a lathe 112 with a small inclination angle in high hardness soil will cause the lathe 112 to be unable to "penetrate" the soil at a large angle, but to advance in a "scraping" manner, so that the lathe 112 cannot smoothly cut into the soil, and a large area of ​​friction contact is generated between the lathe 112 and the soil, which causes the resistance of the lathe 112 to increase sharply, and the lathe 112 is instantly subjected to a large force and the impact is concentrated on the front edge, which is prone to damage such as cracking, curling, and deformation. Similarly, if a lathe 112 with a larger inclination angle is used in land with low hardness (such as sandy loam, moist loam, humus soil, etc.), the lathe 112 will have a steep angle of entry into the soil, that is, it can cut in quickly, but the soil turning effect is poor, which in turn affects the tillage effect.

[0042] The rubber block 35 is provided to increase the friction between the lathe 112 and the wheel body 111 to ensure that the rotating lathe 112 is still tightly connected to the wheel body 111 during the rotation of the lathe 112 on the surface of the wheel body 111, thereby improving the tillage effect of the lathe 112.

[0043] To this end, the present invention provides a worm gear 116 and a worm 117, so that the user can drive the worm gear 116 to rotate by rotating the worm 117, so that the worm gear 116 drives the turning blade 112 to rotate through the mounting column 114 connected thereto, thereby adjusting the inclination angle of the turning blade 112, so that the turning blade 112 after adjusting the inclination angle can effectively operate on cultivated land with different soil conditions, and there is no need to directly replace the turning wheel 11, which not only reduces the production cost of replacing the turning wheel 11, but also reduces the time for disassembly and replacement of the turning wheel 11, reduces the labor intensity of the operator, and improves the efficiency of the cultivated land operation of the present invention.

[0044] When in use, the user first opens the cover 34, and then uses a wrench to rotate the worm 117, so that the worm 117 can drive the worm wheel 116 connected to it to rotate, so that the worm wheel 116 can drive the lathe 112 connected to it to rotate on the circumferential surface of the wheel body 111, so that the inclination angle of the rotating lathe 112 changes, until the inclination angle of the lathe 112 is adjusted. The cover 34 is covered. The setting of the cover 34 is used to protect the worm 117 in the groove 115. During the tillage operation, sand or weeds enter the groove 115 and collide or entangle with the worm 117. On the one hand, it prevents the worm 117 from oscillating or bending due to the impact to ensure the rotation effect of the worm 117, and on the other hand, it prevents weeds from being entangled in the worm At one end of 117, it prevents weeds from pulling the worm 117 to rotate under the action of pulling force, and prevents the worm 117 from driving the turning blade 112 to rotate during the soil cutting process of the turning blade 112, so as to avoid the turning blade 112 cutting in the soil from being damaged by curling, deformation, etc. due to rotation, so as to ensure that the turning blade 112 can operate normally and stably. The reason why the surface of the cover plate 34 and the protective shell 171 are coated with PTFE material is to improve the smoothness and corrosion resistance of the surface of the cover plate 34 and the protective shell 171, reduce the adhesion of soil to the surface of the cover plate 34 and the protective shell 171, and reduce the corrosion caused by soil to the cover plate 34 and the protective shell 171, thereby increasing the service life of the cover plate 34 and the protective shell 171 and reducing the difficulty of cleaning the cover plate 34 and the protective shell 171.

[0045] Since multiple turning blades 112 are installed on each turning wheel 11, if the angle of each turning blade 112 is adjusted separately, the speed of angle adjustment of the turning blade 112 will be reduced. For this purpose, a driving gear 3 is provided, and a hexagonal groove is provided on one side of the driving gear 3. When the user opens the cover 34, the electromagnetic ring 33 is first controlled to operate so that the electromagnetic ring 33 generates a magnetic adsorption force on the driven gear 31, so that the driven gear 31 can squeeze the fixing spring 32 close to the driving gear 3 until the driving gear 3 is meshed with the driven gear 31, and then the hexagonal wrench is inserted into the hexagonal groove of the driving gear 3, thereby rotating the driving gear 3, so that the driving gear 3 can drive the multiple driven gears 31 meshed with it to rotate, so that the multiple driven gears 31 drive the worm 117 slidably connected to it to rotate, so that the multiple worms 117 drive the multiple turning blades 112 to rotate synchronously, thereby improving the speed of angle adjustment of the multiple turning blades 112, so that the efficiency of the cultivated land operation of the present invention is stably improved.

[0046] In addition, when working on the edges of paddy fields and wetland weeds, because the soil is soft and easy to slip and the grass roots are complexly entangled, the lathes 112 with large and small inclination angles are mixed and distributed on the same lathe wheel 11, so that the alternating large-angle lathes 112 and small-angle lathes 112 form a knife group combination system, that is, the large-angle lathe 112 has a large penetration angle and strong propulsion force, can effectively cut into the soil, cut off the grass roots and push the micro-tiller forward, providing a stable longitudinal driving force, while the small-angle lathe 112 effectively performs soil turning operations.

[0047] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A four-wheel drive micro-tillage machine for use in various working environments, comprising a machine body (1); a turning wheel (11) and a wheel (12) are mounted on both sides of the machine body (1); the turning wheel (11) is located at the front end of the machine body (1); the wheel (12) is located at the rear end of the machine body (1); a handlebar (13) is fixedly connected to the upper end of the machine body (1); and the machine body (1) is characterized in that: The upper end of the machine body (1) is rotatably connected to a mounting frame (2); a hydraulic push rod (14) is provided between the mounting frame (2) and the machine body (1); one end of the hydraulic push rod (14) is rotatably connected to the machine body (1), and the other end is rotatably connected to the mounting frame (2); a driving motor (21) is fixedly installed inside the mounting frame (2); an output end of the driving motor (21) is fixedly connected to a connecting gear (22); two cavities (15) are provided inside the machine body (1); a first bevel gear ring (151) and a second bevel gear ring (152) are provided inside the two cavities (15); The first bevel gear ring (151) is fixedly connected to the axle of the turning wheel (11); the second bevel gear ring (152) is fixedly connected to the axle of the wheel (12); the lower end of the machine body (1) is rotatably connected to a bevel gear shaft (153); the two ends of the bevel gear shaft (153) are respectively meshed with the first bevel gear ring (151) and the second bevel gear ring (152); a spur gear (154) is fixedly connected to the surface of the bevel gear shaft (153); the spur gear (154) is meshed with the connecting gear (22) via a transmission gear (155); and the transmission gear (155) is rotatably connected to the machine body (1).

2. The four-wheel drive micro-tillage machine applicable to various working environments according to claim 1, characterized in that: Support wheels (16) are provided on both sides of the machine body (1); one end of the support wheel (16) close to the machine body (1) is fixedly connected to a support rod (161); the support rod (161) is rotatably connected to the machine body (1) via a torsion spring; and the support rod (161) is connected to the drive motor (21) via a stretching unit.

3. The four-wheel drive micro-tillage machine applicable to various working environments according to claim 2, characterized in that: The stretching unit comprises a steel wire rope (162); a rectangular groove (23) is provided at the output end of the driving motor (21); a connecting rod (231) is slidably connected in the rectangular groove (23); the connecting rod (231) is connected to the bottom of the rectangular groove (23) via a connecting spring (232); an electromagnetic sheet (233) is embedded in the bottom of the rectangular groove (23); a rotating ring (24) is sleeved on the surface of the connecting rod (231); the rotating ring (24) is rotatably connected to the mounting frame (2); one end of the steel wire rope (162) is connected to the support rod (161), and the other end is connected to the rotating ring (24); a slot (221) is provided on the surface of the connecting gear (22) and is matched with the connecting rod (231); a protrusion (234) is fixedly connected to the surface of the connecting rod (231); and a clamping groove (241) is provided on the surface of the rotating ring (24) and is matched with the protrusion (234).

4. The four-wheel drive micro-tillage machine applicable to various working environments according to claim 3, characterized in that: The upper end of the body (1) is provided with a mounting groove (17); a protective shell (171) is installed in the mounting groove (17).

5. The four-wheel drive micro-tillage machine applicable to various working environments according to claim 4, characterized in that: The lathe (11) comprises a wheel body (111) and a lathe (112); a circular groove (113) is provided on the surface of the wheel body (111); a mounting post (114) is rotatably connected in the circular groove (113); the mounting post (114) is fixedly connected to the lathe (112); a groove (115) is provided in the wheel body (111); a worm gear (116) is provided in the groove (115); the worm gear (116) is fixedly connected to the mounting post (114); a worm (117) is rotatably connected to one side of the wheel body (111); the worm gear (117) is meshed with the worm wheel (116).

6. The four-wheel drive micro-tillage machine applicable to various working environments according to claim 5, characterized in that: One side of the wheel body (111) is rotatably connected to a driving gear (3); the surface of the worm (117) is slidably connected to a driven gear (31); the driving gear (3) is meshed with the driven gear (31); a fixed spring (32) is sleeved on the surface of the worm (117); one end of the fixed spring (32) is connected to the worm (117), and the other end is connected to the driven gear (31); an electromagnetic ring (33) is inlaid on the surface of the wheel body (111).

7. The four-wheel drive micro-tillage machine applicable to various working environments according to claim 6, characterized in that: A cover plate (34) is installed on one side of the wheel body (111); the surfaces of the cover plate (34) and the protective shell (171) are both coated with a PTFE material.

8. The four-wheel drive micro-tillage machine applicable to various working environments according to claim 7, characterized in that: The lower end of the lathe (112) is fixedly connected with a rubber block (35); the rubber block (35) is made of fluororubber material.

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