High-strength shearing-resistant integrated chassis of four-wheel-drive mini-tiller

Abstract

The invention relates to the technical field of mini-tiller chassis, in particular to a high-strength shearing-resistant integrated chassis of a four-wheel-drive mini-tiller. Comprising a bottom plate and a frame connected with the two sides of the bottom plate through reinforcing pieces. A movable groove is formed in the bottom plate; a movable plate is movably connected into the movable groove; an avoiding groove is formed in the upper surface of the movable groove; the bottom of the avoiding groove is connected with the upper surface of the movable plate through an elastic rope; the lower inner wall of the movable groove communicates with the lower surface of the bottom plate and is provided with a push groove. The push groove is vertically and movably connected with a push strip in a sealed mode. Due to the fact that the lower surface of the bottom plate is in variable deformation and is pushed by the push strip, sludge is not prone to adhering to the lower surface of the bottom plate in a large amount, the weight of the chassis and the whole machine is reduced as much as possible, energy consumption is reduced, and in addition, under the condition that little sludge adheres to the lower surface of the bottom plate, operation of the mini-tiller can be more balanced and stable.

Description

Technical Field

[0001] The invention relates to the technical field of micro-tillage machine chassis, in particular to a high-strength shear-resistant integrated chassis for a four-wheel drive micro-tillage machine. Background Art

[0002] A four-wheel drive tiller is a small agricultural machine widely used for tilling in confined or complex terrain, such as dry land, paddy fields, and orchards in plains, mountainous areas, and hills. Compared to traditional two-wheel drive tillers, the four-wheel drive design provides greater traction and stability, enabling more efficient operation on soft or uneven surfaces and better handling uphill operations.

[0003] The existing chassis design of four-wheel drive micro-tillers often adopts a split structure. When facing complex terrain and high-intensity operations, this structure is prone to problems such as loose connections and chassis distortion, which in turn affects the stability and operating efficiency of the entire machine. Especially in environments with heavy soil and many stones, the insufficient shear resistance of the chassis will lead to reduced transmission efficiency, and in severe cases even damage key components, increasing maintenance costs and downtime; therefore, our technical personnel have developed and designed a patent number CN222814833U, and the patent name is a high-strength shear-resistant integrated chassis for four-wheel drive micro-tillers to solve the above problems. This technical solution improves the stability and durability of the machine body in complex operating environments through a high-strength shear-resistant integrated chassis.

[0004] However, a good chassis not only needs high shear resistance, but also needs to have other properties. When the chassis is moving with the micro-tiller, the mud raised by the running wheels and tillage wheels in the micro-tiller will adhere to the lower surface of the chassis. The mud on the chassis will increase the weight, increase the energy consumption of the micro-tiller, and consume more fuel; too much mud accumulation may also affect the balance of the machine, making it unstable to operate and affecting the tillage effect and safety. Summary of the Invention

[0005] In order to make up for the shortcomings of the existing technology, the present invention proposes a high-strength shear-resistant integrated chassis for a four-wheel drive micro-tiller. Since the lower surface of the bottom plate of the present invention is deformed in a variable manner and is pushed by a push bar, it is difficult for sludge to adhere to the lower surface of the bottom plate in large quantities, thereby reducing the weight of the chassis and the entire machine as much as possible and reducing energy consumption. In addition, when there is less sludge adhering to the lower surface of the bottom plate, the operation of the micro-tiller will also be more balanced and stable.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the high-strength shear-resistant integrated chassis of a four-wheel drive micro-tiller described in the present invention includes a base plate and a frame connected on both sides of the base plate by reinforcement members; a movable groove is provided inside the base plate; a movable plate is movably connected in the movable groove; an avoidance groove is provided on the upper surface of the movable groove; the bottom of the avoidance groove and the upper surface of the movable plate are connected by an elastic rope; a push groove is provided on the lower inner wall of the movable groove that is connected to the lower surface of the base plate; the push groove is movably sealed and connected to a push bar; the upper end of the push bar is connected to the lower surface of the movable plate; the lower end of the push bar can be lower than or higher than the lower port of the push groove when the movable plate moves.

[0007] Preferably, the movable plate is provided with a plurality of slide grooves running through the upper and lower parts; the slide grooves correspond to a plurality of push bars one by one; the slide grooves are located directly above the corresponding push bars; a slider is connected to slide back and forth in the slide grooves; the slider is fixedly connected to the upper end of the push bar; a receiving groove is provided inside the push bar; a guide groove is provided on the upper inner wall of the receiving groove that is connected to the upper surface of the slider; a corrugated strip passes through the guide groove; the upper end of the corrugated strip is fixedly connected to the upper inner wall of the movable slot; the push bar can fluctuate back and forth under the guidance of the corrugated strip.

[0008] Preferably, at the same height, the front and rear corrugation directions of two adjacent corrugated strips are opposite; and the front and rear corrugation directions of adjacent push strips are opposite during the downward movement.

[0009] Preferably, the front and rear inner walls of the push groove are provided with a first shielding groove; a first shielding piece is slidably connected in the first shielding groove; and the first shielding piece is connected to the bottom of the first shielding groove via a spring.

[0010] Preferably, the first shielding groove is slidably and sealedly connected to the first shielding piece; the bottoms of the two front and rear first shielding grooves in the same push groove are connected through a liquid hole; and the first shielding groove is filled with liquid medium.

[0011] Preferably, the front and rear inner walls of the slide groove are provided with a second blocking groove; the bottoms of the two front and rear second blocking grooves are connected to each other; the second blocking groove is slidingly and sealably connected to the second blocking piece; the two front and rear second blocking pieces are fixedly connected to the corresponding sliders; the slider is slidingly and sealably connected to the slide groove; the movable plate is slidingly and sealably connected to the vertical inner wall of the movable groove; an embedded groove is provided on the lower surface of the bottom plate; an elastic membrane is embedded in the embedded groove; the bottom of the embedded groove is connected to the lower inner wall of the movable groove and is provided with a first air hole.

[0012] Preferably, the length direction of the embedding groove is consistent with the length direction of the push groove, and the embedding groove is arranged between two adjacent push grooves.

[0013] Preferably, the movable groove is provided with a one-way air inlet hole penetrating upwards on the upper inner wall; the sliding block and the push bar are provided with one-way air outlet holes penetrating upwards and downwards.

[0014] Preferably, a rotating groove is provided on the vertical inner wall of the movable groove; a turntable is rotatably connected in the rotating groove; the turntable is eccentrically fixed to an eccentric block; a block groove is horizontally provided on the vertical outer wall of the movable plate; the eccentric block is movably connected in the block groove; and the turntable is driven by an auxiliary motor.

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

[0016] 1. The present invention has a variable deformation of the lower surface of the bottom plate, and under the push of the push bar, it makes it difficult for sludge to adhere to the lower surface of the bottom plate in large quantities, thereby reducing the weight of the chassis and the entire machine as much as possible and reducing energy consumption. In addition, when there is less sludge adhering to the lower surface of the bottom plate, the operation of the micro-tillage machine will be more balanced and stable.

[0017] 2. In the present invention, the push strip will move back and forth during the process of the movable plate moving downward and extending out of the push groove. The push strip will break up the soil adhering to the lower surface of the bottom plate during the process of the back and forth movement of the lower end. The soil is divided into multiple sections by multiple push strips and is easier to fall off, thereby improving the efficiency of soil falling off the lower surface of the bottom plate.

[0018] 3. In the process of the movable plate moving downward, the movable plate of the present invention will squeeze the gas in the lower cavity. The gas in the lower cavity will be compressed and enter the embedding groove along the first air hole, thereby causing the elastic membrane in the embedding groove to bulge. During the elastic bulging process, the lower surface of the bottom plate will be deformed. The deformed lower surface of the bottom plate will make it easier for the soil to fall off, thereby improving the soil removal effect on the lower surface of the bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 It is a perspective view of the present invention;

[0021] Figure 2 yes Figure 1 A three-dimensional image from another angle;

[0022] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a diagram showing the internal structure of the bottom plate of the present invention;

[0024] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0025] Figure 6 yes Figure 4 Enlarged view of point C in the middle;

[0026] Figure 7It is a three-dimensional diagram of the movable plate and the push strip in the present invention;

[0027] Figure 8 yes Figure 7 Enlarged view of point D in the middle;

[0028] Figure 9 It is a three-dimensional diagram of the push bar and the slider in the present invention;

[0029] Figure 10 It is a cross-sectional view of the present invention in the front-back direction;

[0030] Figure 11 yes Figure 10 Enlarged view of point E in the middle;

[0031] Figure 12 It is a sectional view of the side of the present invention;

[0032] Figure 13 yes Figure 12 Enlarged view of point F in the middle;

[0033] Figure 14 yes Figure 12 Enlarged view of point G in the middle.

[0034] In the figure: base plate 1, movable groove 11, one-way air inlet 111, avoidance groove 12, elastic rope 13, push groove 14, first blocking groove 15, liquid hole 151, first blocking piece 16, spring 17, embedding groove 18, first air hole 181, rotating groove 19, reinforcement 2, frame 3, movable plate 4, slide groove 41, second blocking groove 42, second blocking piece 43, block groove 44, push strip 5, accommodating groove 51, guide groove 52, corrugated strip 53, slider 6, one-way air outlet 61, elastic membrane 7, turntable 8, eccentric block 81, auxiliary motor 82. DETAILED DESCRIPTION

[0035] 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.

[0036] like Figures 1 to 14 As shown, the present invention includes the following embodiments:

[0037] Example 1: A high-strength shear-resistant integrated chassis of a four-wheel drive micro-tiller, comprising a base plate 1 and a frame 3 connected on both sides of the base plate 1 by reinforcements 2; a movable groove 11 is provided inside the base plate 1; a movable plate 4 is movably connected inside the movable groove 11; an avoidance groove 12 is provided on the upper surface of the movable groove 11; the bottom of the avoidance groove 12 is connected to the upper surface of the movable plate 4 by an elastic rope 13; a push groove 14 is provided on the lower inner wall of the movable groove 11, which is connected to the lower surface of the base plate 1; the push groove 14 is movably sealed and connected to a push bar 5 at upper and lower sides; the upper end of the push bar 5 is connected to the lower surface of the movable plate 4; the lower end of the push bar 5 can be lower than or higher than the lower end of the push groove 14 when the movable plate 4 moves.

[0038] After the chassis is installed on the four-wheel drive micro-tiller, the micro-tiller will drive the walking wheels and the tilling wheels to rotate, and the rotating walking wheels and the tilling wheels will lift up the mud, which will be thrown up and adhere to the lower surface of the chassis. The mud on the lower surface of the chassis will cause the micro-tiller to become heavier and affect the balance of the micro-tiller. However, the chassis vibrates as the micro-tiller plows, and the vibrating chassis will drive the movable plate 4 in the movable groove 11 to move up and down. The gravity of the movable plate 4 and the push bar 5 is balanced with the elastic force of the elastic rope 13. The initial position of the movable plate 4 is in the middle of the movable groove 11, and the movable plate 4 has a movable gap in the upper and lower directions in the movable groove 11. In this way, the movable plate 4 can move up and down in the movable groove 11. The downward movement under the action of vibration will drive multiple push strips 5 to move downward synchronously. During the downward movement of multiple push strips 5, they will move along their respective push grooves 14. During the downward movement of the lower end of the push strip 5, it will extend from the lower end of the corresponding push groove 14. After the lower end of the push strip 5 protrudes from the lower surface of the bottom plate 1, the lower surface of the bottom plate 1 will be uneven, and the outside air will enter the gap between the mud and the lower surface of the bottom plate 1, reducing the adhesion area of ​​the mud and the lower surface of the bottom plate 1. Under the push of the lower end of the push strip 5, the mud will fall off from the lower surface of the bottom plate 1. Then the movable plate 4 will move upward under the action of vibration. During the upward movement of the movable plate 4, the push strip 5 will be driven to move upward. During the upward movement, the lower end will be driven to retract to the lower end of the push groove 14. The sludge on the surface of the push bar 5 will be pulled down and gathered at the lower end of the push groove 14 during the process of the push bar 5 retracting the push groove 14. As the push bar 5 moves down again, the sludge around the lower end of the push groove 14 will be pushed down again, and this process is repeated. Since the lower surface of the bottom plate 1 is deformed in a variable manner and is pushed by the push bar 5, the sludge is not easy to adhere to the lower surface of the bottom plate 1 in large quantities, and the weight of the chassis and the whole machine is reduced as much as possible, and energy consumption is reduced. In addition, when there is less sludge adhering to the lower surface of the bottom plate 1, the operation of the micro-tillage machine will be more balanced and stable. For some higher soil slopes, it may be difficult to When there is a situation of scraping the chassis, when the soil slope is in direct contact with the lower surface of the bottom plate 1, the soil slope will push the lower end of the push bar 5 to move up, and the push bar 5 will retract into the corresponding push groove 14 after moving up, so that the lower surface of the bottom plate 1 remains flush. The smooth bottom plate 1 will make the friction resistance between the lower surface of the bottom plate 1 and the soil slope smaller, so that the micro-tiller can move better; for some soft mud, the soft mud has less squeezing force on the lower end of the push bar 5, so that in the process of contact between the soft mud ground and the lower surface of the bottom plate 1, the push bar 5 extending out of the push groove 14 can prevent slipping in the left and right directions. The length direction of the push bar 5 is the direction of travel, which will not affect the travel of the micro-tiller.

[0039] Example 2: The movable plate 4 is provided with a plurality of slide grooves 41 running through the upper and lower parts; the slide grooves 41 correspond to a plurality of push bars 5 one by one; the slide grooves 41 are located directly above the corresponding push bars 5; the slider 6 is connected to the slide groove 41 for sliding back and forth; the slider 6 is fixedly connected to the upper end of the push bar 5; the push bar 5 is provided with a receiving groove 51 inside; the upper inner wall of the receiving groove 51 is connected to the upper surface of the slider 6 and is provided with a guide groove 52; the guide groove 52 passes through the corrugated strip 53; the upper end of the corrugated strip 53 is fixedly connected to the upper inner wall of the movable groove 11; the push bar 5 can fluctuate back and forth under the guidance of the corrugated strip 53.

[0040] In this embodiment, at the same height, the front and rear corrugation directions of two adjacent corrugated strips 53 are opposite; the front and rear corrugation directions of adjacent push strips 5 are opposite during the downward movement.

[0041] The movable plate 4 moves up and down in the movable groove 11 under the action of vibration. The movable plate 4 moves down and drives the slider 6 in the slide groove 41 to move down synchronously during the downward movement of the slider 6. The downward movement of the slider 6 drives the fixed push bar 5 to move downward. The downward movement of the push bar 5 drives the internal accommodating groove 51 to move downward. The guide groove 52 at the upper end of the accommodating groove 51 moves with the corrugated strip 53. The corrugated strip 53 is in the shape of a vertical corrugation that fluctuates in the front and rear directions. In this way, the slide 51 is moved downward during the movement of the guide groove 52 and the corrugated strip 53. The block 6 moves back and forth, and the slider 6 slides back and forth along the slide groove 41 during the back and forth movement. The slider 6 drives the push strip 5 to move back and forth during the back and forth movement of the slider 6. In this way, the push strip 5 can also move back and forth when the movable plate 4 moves down and extends out of the push groove 14. The push strip 5 can break the soil adhered to the lower surface of the bottom plate 1 when the lower end moves back and forth. The soil is divided into multiple sections by multiple push strips 5 and is easier to fall off, thereby improving the efficiency of soil falling off the lower surface of the bottom plate 1. When the movable plate 4 is moved downward, the two adjacent sliders 6 move in opposite directions.

[0042] Example 3: The front and rear inner walls of the push groove 14 are provided with a first blocking groove 15 ; a first blocking piece 16 is slidably connected in the first blocking groove 15 ; the first blocking piece 16 is connected to the bottom of the first blocking groove 15 via a spring 17 .

[0043] In this embodiment, the first shielding groove 15 is slidably and sealedly connected to the first shielding piece 16; the bottoms of the two front and rear first shielding grooves 15 in the same push groove 14 are connected through a liquid hole 151; and the first shielding groove 15 is filled with liquid medium.

[0044] When the movable plate 4 drives the slider 6 and the push bar 5 to move upward, the push bar 5 will also move in the front and rear directions. A first blocking groove 15 is set at the front and rear positions inside the push groove 14. The first blocking piece 16 is elastically slidably connected in the first blocking groove 15. When the push bar 5 moves forward, the first blocking piece 16 at the front position is compressed and retracted to the first blocking groove 15. The first blocking piece 16 at the rear position is extended under the action of the spring 17, so that the distance between the two first blocking pieces 16 corresponding to the front and rear is adapted to the length of the push bar 5 in the corresponding push groove 14, so that the push bar 5 can meet the front and rear activities and can also adapt to the space of the push bar 5 and the push groove 14, so as to prevent the soil from entering the movable groove 11 as the push bar 5 moves upward. The soil on the surface of the push bar 5 is blocked by the movable groove 11 and the first blocking piece 16. The blocking piece 16 is pulled down to ensure that the push strip 5 enters the movable groove 11 cleanly; further, the first blocking strip is slidably and sealedly connected to the first blocking groove 15, so that in the process of the push strip 5 moving forward, the first blocking piece 16 at the front position will be pressed forward to squeeze the medium in the first blocking groove 15 at the front position, so that the medium in the first blocking groove 15 at the front position enters the corresponding first blocking groove 15 at the rear position along the liquid hole 151, so that the first blocking piece 16 in the first blocking groove 15 at the rear position is extended in time, thereby further ensuring that the distance between the front and rear corresponding first blocking pieces 16 is adapted to the length of the push strip 5, avoiding the situation where the first blocking piece 16 does not have time to extend and leaves a gap with the push strip 5, thereby improving the effect of cleaning the dirt on the surface of the push strip 5.

[0045] Example 4: The front and rear inner walls of the slide groove 41 are provided with second blocking grooves 42; the bottoms of the front and rear second blocking grooves 42 are connected to each other through a second air hole (not shown in the figure); the second blocking piece 43 is slidingly and sealedly connected in the second blocking groove 42; the front and rear second blocking pieces 43 are fixedly connected to the corresponding sliders 6; the sliders 6 are slidingly and sealedly connected to the slide groove 41; the movable plate 4 is slidingly and sealedly connected to the vertical inner wall of the movable groove 11; the lower surface of the bottom plate 1 is provided with an embedded groove 18; an elastic membrane 7 is embedded in the embedded groove 18; the bottom of the embedded groove 18 is connected to the lower inner wall of the movable groove 11 and is provided with a first air hole 181.

[0046] In this embodiment, the length direction of the embedding groove 18 is consistent with the length direction of the push groove 14 , and the embedding groove 18 is arranged between two adjacent push grooves 14 .

[0047] The slide groove 41 is slidably and sealedly connected to the slider 6. The slider 6 will also slide back and forth along the slide groove 41 as the movable plate 4 moves up and down. The slider 6 will drive the front and rear two second blocking pieces 43 to slide along the second blocking groove 42 during the forward and backward sliding process. In this way, the movable plate 4 divides the movable groove 11 into two independent spaces, the upper space of the movable plate 4 inside the movable groove 11 is the upper cavity, and the lower space of the movable plate 4 inside the movable groove 11 is the lower cavity. When the movable plate 4 moves downward, the movable plate 4 will squeeze the gas in the lower cavity. The gas in the lower cavity will be pressurized and enter the embedded groove 18 along the first air hole 181, thereby causing the elastic membrane 7 in the embedded groove 18 to bulge. During the movement, the lower surface of the bottom plate 1 will be deformed, and the deformed lower surface of the bottom plate 1 will make it easier for the mud to fall off, thereby improving the mud cleaning effect on the lower surface of the bottom plate 1. Furthermore, since the embedded groove 18 is arranged between two adjacent push grooves 14, the bulging elastic membrane 7 will push the mud toward the bottom of the push groove 14, thereby cooperating with the push of the push strip 5, so that the mud cleaning effect on the lower surface of the bottom plate 1 is improved; in the process of the movable plate 4 moving upward, the space in the lower cavity will be enlarged to form a negative pressure, and the gas in the embedded groove 18 enters the lower cavity along the first air hole 181 under the action of the negative pressure, so that the elastic membrane 7 is shriveled and stored in the embedded groove 18, and the embedded groove 18 stores and protects the elastic membrane 7.

[0048] Embodiment 5: The movable groove 11 is provided with a one-way air inlet hole 111 penetrating upwards on the upper inner wall; the slider 6 and the push bar 5 are provided with one-way air outlet holes 61 penetrating upwards and downwards.

[0049] In this embodiment, a rotating groove 19 is provided on the vertical inner wall of the movable groove 11; the rotating groove 19 is rotatably connected to the turntable 8; the turntable 8 is eccentrically fixed to the eccentric block 81; a block groove 44 is horizontally provided on the vertical outer wall of the movable plate 4; the eccentric block 81 is movably connected in the block groove 44; the turntable 8 is driven by an auxiliary motor 82.

[0050] The movable plate 4 moves up and down in the movable groove 11 due to the vibration caused by the running of the micro-tiller. During the downward movement of the movable plate 4, the space in the upper chamber becomes larger and forms a negative pressure, and the outside air enters the upper chamber along the one-way air inlet 111. The position of the one-way air inlet 111 is staggered with the chassis of the engine (not shown) in the micro-tiller. After the outside air enters the upper chamber, as the movable plate 4 moves upward, the gas in the upper chamber is pressurized and discharged along the one-way air outlet 61. During the flow of the gas in the push strip 5 and the upper chamber, the heat in the bottom plate 1 is taken away, thereby heat dissipation of the bottom plate 1, and then indirectly heat conduction is carried out to the chassis such as the engine, thereby improving the cooling effect of the micro-tiller and making the micro-tiller more stable. The gas discharged from the lower end of the push strip 5 can further wash away the soil on the lower surface of the bottom plate 1, thereby improving the soil cleaning effect on the lower surface of the bottom plate 1. The push strip 5 extending from the lower end of the push groove 14 is equivalent to a fin, which contacts and exchanges heat with the outside air, thereby cooling the chassis.

[0051] Furthermore, since the movement of the movable plate 4 in the movable groove 11 is limited by the vibration of the micro-tiller, a miniature auxiliary motor 82 is fixedly connected to the rear of the base plate 1. The auxiliary motor 82 will drive the turntable 8 to rotate. During the rotation of the turntable 8, the eccentric block 81 will be driven to move along the block groove 44. In this way, the movable plate 4 can slide up and down stably in the movable groove 11 under the drive of the eccentric block 81. The auxiliary motor 82 plays a role in assisting the movement of the movable plate 4. The auxiliary motor 82 will only be started when the movable plate 4 needs to move in the movable groove 11, and the movable plate 4 itself can also move up and down.

[0052] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0053] 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 high-strength, shear-resistant integrated chassis for a four-wheel drive micro-tillage machine, comprising a base plate and a frame connected on both sides of the base plate by reinforcement members; characterized in that: A movable groove is provided inside the bottom plate; the movable plate is movably connected to the movable groove; an avoidance groove is provided on the upper surface of the movable groove; the bottom of the avoidance groove and the upper surface of the movable plate are connected by an elastic rope; a push groove is provided on the lower inner wall of the movable groove which is connected to the lower surface of the bottom plate; the push groove is movably sealed and connected to a push strip; the upper end of the push strip is connected to the lower surface of the movable plate; the lower end of the push strip can be lower than or higher than the lower end of the push groove when the movable plate moves.

2. The high-strength shear-resistant integrated chassis of the four-wheel drive micro-tillage machine according to claim 1, characterized in that: The movable plate is provided with a plurality of slide grooves running through the upper and lower parts; the slide grooves correspond to a plurality of push strips one by one; the slide grooves are located directly above the corresponding push strips; a slider is connected to slide back and forth in the slide grooves; the slider is fixedly connected to the upper end of the push strip; a receiving groove is provided inside the push strip; a guide groove is provided on the upper inner wall of the receiving groove that is connected to the upper surface of the slider; a corrugated strip passes through the guide groove; the upper end of the corrugated strip is fixedly connected to the upper inner wall of the movable slot; the push strip can fluctuate back and forth under the guidance of the corrugated strip.

3. The high-strength shear-resistant integrated chassis of the four-wheel drive micro-tillage machine according to claim 2, characterized in that: At the same height, two adjacent corrugated strips are arranged in opposite directions in the front and rear corrugation directions.

4. The high-strength shear-resistant integrated chassis of the four-wheel drive micro-tillage machine according to claim 2, characterized in that: The front and rear inner walls of the push groove are provided with a first shielding groove; the first shielding piece is elastically and slidably connected in the first shielding groove.

5. The high-strength shear-resistant integrated chassis of the four-wheel drive micro-tillage machine according to claim 4, characterized in that: The first shielding groove is slidably and sealedly connected to the first shielding piece; the bottoms of the two front and rear first shielding grooves in the same push groove are connected through a liquid hole.

6. The high-strength shear-resistant integrated chassis of the four-wheel drive micro-tillage machine according to claim 2, characterized in that: The front and rear inner walls of the slide are provided with a second blocking groove; the bottoms of the two front and rear second blocking grooves are connected to each other; the second blocking groove is slidingly and sealably connected to the second blocking piece; the two front and rear second blocking pieces are fixedly connected to the corresponding sliders; the slider is slidingly and sealably connected to the slide; the movable plate is slidingly and sealably connected to the vertical inner wall of the movable groove; an embedded groove is provided on the lower surface of the bottom plate; an elastic membrane is embedded in the embedded groove; the bottom of the embedded groove is connected to the lower inner wall of the movable groove and is provided with a first air hole.

7. The high-strength shear-resistant integrated chassis of the four-wheel drive micro-tillage machine according to claim 6, characterized in that: The length direction of the embedding groove is consistent with the length direction of the push groove, and the embedding groove is arranged between two adjacent push grooves.

8. The high-strength shear-resistant integrated chassis of the four-wheel drive micro-tillage machine according to claim 6, characterized in that: The movable groove is provided with a one-way air inlet hole upwardly penetrating the upper inner wall; the sliding block and the push bar are provided with one-way air outlet holes upwardly and downwardly penetrating the sliding block and the push bar.

9. The high-strength shear-resistant integrated chassis of a four-wheel drive micro-tillage machine according to claim 1, characterized in that: The vertical inner wall of the movable groove is provided with a rotating groove; a turntable is rotatably connected in the rotating groove; the turntable is eccentrically fixed to an eccentric block; a block groove is horizontally provided on the vertical outer wall of the movable plate; the eccentric block is movably connected in the block groove; the turntable is driven by an auxiliary motor.

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