A dynamic attachment-driven cutting and anti-sticking and anti-tangling rotary tillage blade and rotary tillage implement

Abstract

The present invention discloses a dynamic load-driven shearing and anti-adhesion rotary tiller and a rotary tiller tool, comprising a blade shaft, a cover shell, a load-driven rotary tiller and a shearing movable and fixed blade, wherein the cover shell is mounted on the blade shaft and is rotatably connected to the blade shaft; a straight slot hole is provided on the circumferential surface of the cover shell, and a mounting slot hole is provided on the side surface of the cover shell; the load-driven rotary tiller is installed through the straight slot hole, and the load-driven rotary tiller is fixedly connected to the blade shaft distributed vertically therewith, the shearing movable and fixed blade is installed through the mounting slot hole and is distributed parallel to the blade shaft, the shearing movable and fixed blade contacts the load-driven rotary tiller to form a force locking cam mechanism, and the up and down movement of the load-driven rotary tiller of the present invention is converted into axial reciprocating motion of the shearing movable and fixed blade through the action of the force locking cam mechanism, and the shearing movable and fixed blade can cut off straw and weeds entangled on the blade shaft and disturb the soil adhering to the blade shaft while ensuring the quality of rotary tillage operation, thereby effectively preventing straw entanglement and soil adhesion on the blade shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of rotary tillage equipment for agricultural machinery, and more specifically, to a dynamically load-driven cutting and anti-adhesion rotary tillage blade and a rotary tillage implement. Background Art

[0002] After rice harvesting, the stubble left on the ground surface is high. The rice stems and leaves are crushed and scattered by the harvester, and accumulate on the upper surface of the stubble to form floating straws (rice straws and rice leaves). The covering layer composed of stubble and floating straws is relatively thick. During harvesting, some straws are crushed by the crawler of the harvester and embedded in the surface soil. The above reasons cause the rotary tillage implement to be extremely prone to straw accumulation and entanglement and soil adhesion during operation. After straw entanglement and soil adhesion, the following problems exist: it is necessary to stop the machine for manual cleaning, which seriously affects the working efficiency of the rotary tiller; the unit drives the implement to work together with the entangled straws and adhered soil, increasing the operation power consumption; the rotary tiller roller is lifted by the entangled straws and adhered soil, and the depth of the rotary tillage blade entering the soil becomes shallower, and it cannot effectively break the soil and bury the soil, reducing the operation quality of the rotary tiller such as the straw burial rate, soil breaking rate, tillage depth and tillage depth stability. Therefore, providing an anti-entangling and anti-adhering rotary tillage blade has become an urgent need in the rice-growing area.

[0003] However, for existing anti-entangling and anti-adhering rotary tillage blades, such as a rotary tillage blade for preventing grass entanglement suitable for hard soil disclosed in Patent No. 202120673821.7, an interception tooth is provided on one side of the blade body close to the handle, which plays a role in blocking uncut weeds and avoiding grass entanglement. However, during field operations with a large amount of straw, the straws are distributed in a staggered and stacked manner, and the toughness of the straws becomes stronger. The tool cannot effectively cut the straws, resulting in a large amount of straws being wound around the knife shaft and reducing the operation quality. Another example is a full-terrain telescopic rotary tillage blade and its usage method disclosed in Patent No. 202111236018.8, which can adjust the height of the blade according to terrain requirements, adjust the resistance of the slider through an adjustment block, adjust the telescopic elasticity of the blade on different soil types, and cut the sundries wound outside the knife shaft through a cutting knife. However, since it is necessary to stop the machine to adjust the height of the rotary tillage blade according to terrain requirements, the operation efficiency is reduced. Although the sundries outside the cutting shaft can be cut on the cutting knife, there will still be a phenomenon of grass entanglement and grass hanging on the cutting knife itself. Another example is a rotary tillage blade with functions of preventing breakage, preventing grass entanglement and high soil turning efficiency disclosed in Patent No. 202011263609.X. By providing an anti-grass-entangling device on the rotary tillage blade, the purpose of effectively preventing weeds from entangling the rotary tillage blade is achieved. However, when rotary tilling in wet and sticky paddy soil covered with a large amount of straw, the straws are embedded in the surface soil to form a complex, and the complex has the dual characteristics of adhesion and entanglement. The tool cannot cut the straws and detach the soil at the same time.

[0004] Therefore, providing a dynamically load-driven cutting and anti-adhesion rotary tillage blade and a rotary tillage implement is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a dynamically attached driven shearing and anti-sticking rotary tillage blade and rotary tillage machine, which can solve the problem that the rotary tillage blade is easily entangled with rice stubble and adheres to soil during rotary tillage in rice stubble fields with a large amount of straw and wet and sticky soil, thereby preventing the rotary tillage blade from sticking and improving the tillage quality and operation efficiency.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A dynamic load-driven shearing and anti-adhesion rotary tillage blade, comprising:

[0008] Knife shaft,

[0009] A cover shell, the cover shell is mounted on the knife shaft, and the cover shell is rotatably connected to the knife shaft; a straight slot hole is provided on the circumferential surface of the cover shell, and a mounting slot hole is provided on the side surface of the cover shell;

[0010] An attached driven rotary tiller, the attached driven rotary tiller is installed through the straight slot, and the attached driven rotary tiller is fixedly connected to the blade shaft vertically distributed therewith;

[0011] The shearing movable and fixed blades are installed through the installation slot and are distributed parallel to the blade shaft. The shearing movable and fixed blades are in contact with the attached driving rotary tiller blade to form a force locking cam mechanism.

[0012] By adopting the above technical solution, the beneficial effects of the present invention are:

[0013] The up and down movement of the load-driven rotary tillage blade is converted into axial reciprocating motion of the shearing movable and fixed blades under the action of the force-locking cam mechanism. Under the premise of ensuring the quality of rotary tillage operation, the shearing movable and fixed blades can cut off the straw and weeds entangled on the blade shaft, disturb the soil adhering to the blade shaft, and effectively prevent straw entanglement and soil adhesion on the blade shaft.

[0014] Furthermore, the attached driven rotary blade includes a blade holder, a rotary blade body, a cylinder and a movable cam, wherein the blade holder is located inside the cover shell and is fixedly connected to the blade shaft; the rotary blade body extends through the straight slot hole into the blade holder, and the rotary blade body and the blade holder are connected by a sliding bolt, wherein the sliding bolt is fixedly connected to the mounting hole of the rotary blade body, and the sliding bolt is slidingly connected to the straight slot of the blade holder and extends out of the straight slot; the cylinder body of the cylinder is sleeved and mounted on the end of the sliding bolt and is rotatably connected to it; the telescopic rod sleeve of the cylinder is sleeved and fixed on the short shaft on the side of the blade holder and is rotatably connected to it; the movable cam is fixed on the top of the rotary blade body and contacts the shear moving and fixed blade lines.

[0015] Further, the fixed and moving shearing knives include a fixed knife, a push rod, a retaining piece, a compression spring, and a moving knife. The fixed knife is fixed at a position on the side of the housing corresponding to the mounting slot hole. One end of the push rod is located in the mounting slot hole and is slidably connected thereto, and the other end of the push rod extends into the fixed knife. The push rod is in line contact with the moving cam to form the force-locking cam mechanism. The retaining piece and the compression spring are both sleeved on the push rod and are both located in the mounting slot hole, and the compression spring is located between the fixed knife and the retaining piece. The moving knife is fixedly connected to the extended end of the push rod, and the moving knife is fitted into the fixed knife so that the sawteeth of the moving knife extend into the sawtooth grooves of the fixed knife.

[0016] Further, both sides inside the tool holder have straight grooves, and vertically arranged balls are installed in the straight grooves, and the balls are pressed by screws screwed at the bottom of the tool holder.

[0017] The beneficial effect of adopting the above further technical solution is to reduce the frictional force of the moving pair between the rotary tillage knife body and the tool holder.

[0018] Further, the end of the push rod in contact with the moving cam is coated with a rubber material.

[0019] The beneficial effect of adopting the above further technical solution is to reduce the wear of the moving cam and improve the service life of the moving cam and the push rod.

[0020] Further, a rubber pad is installed between the retaining piece and the mounting slot hole.

[0021] The beneficial effect of adopting the above further technical solution is to reduce collisions.

[0022] Further, the sawtooth length of the moving knife is 10 - 15 mm smaller than the sawtooth length of the fixed knife.

[0023] Further, the skiving angles of the moving knife and the fixed knife are both 30° - 60°.

[0024] Further, the diameter of the circular arc notch at the top of the rotary tillage knife body, the diameter of the circular arc notch at the top of the tool holder, and the diameter of the tool shaft are the same.

[0025] The beneficial effect of adopting the above further technical solution is that when the rotary tillage knife body moves upward, the contact between the notch of the rotary tillage knife body and the tool shaft has a limiting effect on the rotary tillage knife body, preventing the rotary tillage knife body from rising too far and reducing the tillage depth.

[0026] A rotary tillage implement, comprising a rotary tillage machine frame and a plurality of the above-mentioned dynamic load-driven cutting and anti-sticking rotary tillage blades arranged uniformly along the horizontal direction of the rotary tillage machine frame. The plurality of cutter shafts are connected together in sequence to form a drive shaft, and both ends of the drive shaft are rotatably connected to both sides of the rotary tillage machine frame respectively.

[0027] It can be seen from this that the present invention provides a dynamic load-driven cutting and anti-sticking rotary tillage blade and a rotary tillage implement. Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] 1) In the present invention, the cylinder drives the rotary tillage blade body to move up and down relative to the tool rest. During the process of cutting the soil, the soil applies a dynamic load drive to the rotary tillage blade body, and the rotary tillage blade body makes periodic up and down movements, thereby reducing the entanglement of straw on the rotary tillage blade body and the adhesion of soil, and having relatively high safety and stability;

[0029] 2) The moving cam, push rod, and spring at the top of the rotary tillage blade body cooperate to form a force-locking cam mechanism. The up and down movement of the rotary tillage blade body transmits power and is converted into the axial reciprocating movement of the moving blade. On the premise of ensuring the quality of the rotary tillage operation, the moving blade reciprocates relative to the fixed blade, thereby cutting the straw and weeds wound around the cutter shaft and disturbing the soil adhering to the cutter shaft, effectively preventing the entanglement of straw on the cutter shaft and the adhesion of soil;

[0030] 3) The rotary tillage blade body generates force transmission through the interaction with the soil, realizing the vibration of the rotary tillage blade body and the reciprocating movement of the moving blade, without the need to add an additional power source, effectively reducing energy consumption, and still being able to effectively prevent entanglement and adhesion when the amount of straw in the field is large and the soil is wet and sticky, with relatively good reliability;

[0031] 4) The periodic up and down vibration of the rotary tillage blade body can effectively reduce the wavy protrusions at the bottom of the tillage layer after rotary tillage, increasing the flatness of the bottom of the ditch. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings.

[0033] Figure 1 The attached drawing is a schematic diagram of the overall structure of a dynamic load-driven cutting and anti-sticking rotary tillage blade provided by the present invention;

[0034] Figure 2 The attached drawing is a schematic diagram of the structure of a load-driven rotary tillage blade provided by the present invention;

[0035] Figure 3The attached drawing is a schematic structural view of the cutting moving and fixed knives provided by the present invention;

[0036] Figure 4 The attached drawing is the front view of the tool holder provided by the present invention;

[0037] Figure 5 The attached drawing is Figure 4 the sectional view taken along line A-A in

[0038] Figure 6 The attached drawing is the side view of the housing provided by the present invention;

[0039] Figure 7 The attached drawing is the working principle diagram of a dynamic load-driven cutting and anti-sticking rotary tillage knife provided by the present invention;

[0040] Figure 8 The attached drawing is the assembly drawing of a dynamic load-driven cutting and anti-sticking rotary tillage knife provided by the present invention;

[0041] Figure 9 The attached drawing is the exploded view of a dynamic load-driven cutting and anti-sticking rotary tillage knife provided by the present invention;

[0042] Figure 10 The attached drawing is the schematic structural view of a rotary tillage implement provided by the present invention. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0044] Such as Figures 1-9As shown in the figure, an embodiment of the present invention discloses a dynamic load-driven cutting and anti-sticking rotary tillage knife, which includes a knife shaft 1, a housing 2, a load-driven rotary tillage knife 3, and a shearing moving and fixed knife 4. The housing 2 is installed on the knife shaft 1 and is rotatably connected to the knife shaft 1. The main function of the housing 2 is to improve the structural stability. In this embodiment, for the convenience of assembly, the housing is composed of two flat semi-cylindrical shells, and the two shells are connected by bolts; the circumferential surface of the housing 2 has straight groove holes 21, and the side surface of the housing 2 has mounting groove holes 22; the load-driven rotary tillage knife 3 is installed through the straight groove holes 21 and is fixedly connected to the knife shaft 1 perpendicular to it. In this embodiment, the number of load-driven rotary tillage knives 3 is two, and the rotation directions of the two load-driven rotary tillage knives 3 are opposite; the shearing moving and fixed knife 4 is installed through the mounting groove holes 22 and is parallel to the knife shaft 1. The shearing moving and fixed knife 4 contacts the load-driven rotary tillage knife 3 to form a force-locking cam mechanism. In this embodiment, the number of shearing moving and fixed knives 4 is two, and they are symmetrically distributed with respect to the center line of the housing 2. The up and down movement of the load-driven rotary tillage knife 3 of the present invention transfers power under the action of the force-locking cam mechanism into the axial reciprocating movement of the shearing moving and fixed knife 4. On the premise of ensuring the quality of rotary tillage operation, the shearing moving and fixed knife 4 can cut off the straws and weeds wound around the knife shaft 1, disturb the soil A adhering to the knife shaft 1, and effectively prevent the straws from winding around the knife shaft 1 and the soil A from adhering to it.

[0045] Specifically, the load-driven rotary tillage knife 3 includes a knife seat 31, a rotary tillage knife body 32, a cylinder 33, and a moving cam 34. The knife seat 31 is located inside the housing 2 and is fixedly connected to the knife shaft 1. In this implementation, welding connection is adopted; the rotary tillage knife body 32 extends through the straight groove holes 21 into the knife seat 31, and the rotary tillage knife body 32 is connected to the knife seat 31 by a sliding bolt 35. Among them, the sliding bolt 35 is fixedly connected to the mounting hole 321 of the rotary tillage knife body 32, and the sliding bolt 35 is slidably connected to the straight groove opening 311 of the knife seat 31 and extends out of the straight groove opening 311; the cylinder body 331 of the cylinder 33 is sleeved and installed at the end of the sliding bolt 35 and is rotatably connected to it; the telescopic rod sleeve 332 of the cylinder 33 is sleeved and fixed on the short shaft 36 on the side surface of the knife seat 31 and is rotatably connected to it. Thus, the sliding bolt 35, the knife seat 31, and the cylinder body 331 of the cylinder 33 form a rotary pair, and the rotary tillage knife body 32 and the knife seat 31 form a moving pair; in this embodiment, the number of cylinders 33 is two, and the two telescopic rod sleeves 332 are respectively sleeved and rotatably connected to both sides of the short shaft 36; the moving cam 34 is fixed on the top of the rotary tillage knife body 32 and is in line contact with the shearing moving and fixed knife 4. In this embodiment, the moving cam 34 is welded to the top of the rotary tillage knife body 32.

[0046] Specifically, the fixed and moving cutting blades 4 include a fixed blade 41, a push rod 42, a retaining piece 43, a compression spring 44, and a moving blade 45. The fixed blade 41 is fixed to the side of the housing 2 corresponding to the mounting slot 22. The top of the end of the fixed blade 41 is in a closed state to prevent the soil A and straw from being blocked. One end of the push rod 42 is located in the mounting slot 22 and is slidably connected thereto, and the other end of the push rod 42 extends into the fixed blade 41. The push rod 42 is in line contact with the moving cam 34 to form a force-locking cam mechanism. Both the retaining piece 43 and the compression spring 44 are sleeved on the push rod 42 and are both located in the mounting slot 22. The compression spring 44 is located between the fixed blade 41 and the retaining piece 43. The moving blade 45 is fixedly connected to the extended end of the push rod 42, and the moving blade 45 is fitted into the fixed blade 41, so that the serrations of the moving blade 45 extend into the serration grooves of the fixed blade 41, thereby forming a shearing moving pair. The fixed blade 41 plays a supporting role for the straw wound around the tool shaft 1, so that more effective force acts on the straw when the moving blade 45 cuts. The wound straw is sheared and broken with the fixed blade 41 as a support, so that the wound straw is cut off and separated, achieving the purpose of preventing entanglement during rotary tillage. When the rotary tillage blade body 32 is subjected to the radial force of the soil A, the cylinder 33 makes a piston movement, and the telescopic rod sleeve 332 contracts, causing the moving cam 34 to move upward, so that the push rod 42 in contact with the two side surfaces of the moving cam 34 moves outward to both sides in the axial direction. The push rod 42 drives the moving blade 45 to make an axial movement, and at the same time compresses the compression spring 44. When the radial force received by the rotary tillage blade body 32 disappears, the cylinder 33 returns to its original length, and the rotary tillage blade body 32 and the moving cam 34 move downward to return to the initial position. The compression spring 44 resets and squeezes the retaining piece 43, causing the push rod 42 and the moving blade 45 to move axially back to the initial position. The radial force of the rotary tillage blade body 32 caused by the soil A is a periodically changing acting force. Therefore, a periodic reciprocating movement is also realized between the moving blade 45 and the fixed blade 41. The straw is sheared by the triangular serrations, disturbing the soil A adhered to the tool shaft 1, realizing the periodic dynamic load driving of the fixed and moving blades to cut off the straw and preventing the soil A from adhering to the tool shaft 1.

[0047] In order to reduce the friction force of the moving pair between the rotary tillage blade body 32 and the tool holder 31, both sides inside the tool holder 31 are provided with straight grooves 312, and vertically arranged balls 5 are installed in the straight grooves 312, and the balls 5 are pressed by screws 6 screwed at the bottom of the tool holder 31.

[0048] In order to reduce the wear of the moving cam 34 and improve the service life of the moving cam 34 and the push rod 42, the end of the push rod 42 in contact with the moving cam 34 is coated with a rubber material.

[0049] In order to reduce the collision, a rubber pad is installed between the retaining piece 43 and the mounting slot 22.

[0050] Specifically, the serration length of the moving blade 45 is 10 - 15 mm smaller than that of the fixed blade 41. The moving blade 45 and the fixed blade 41 form a shear moving pair. The fixed blade 41 plays a supporting role for the straw wound around the tool shaft 1, enabling more effective force to act on the straw when the moving blade 45 cuts. The straw is sheared and broken with the fixed blade 41 as the support. The cooperation of multiple shear mechanisms cuts and separates the wound straw, achieving the purpose of anti - entanglement in rotary tillage.

[0051] Specifically, the skiving angles of both the moving blade 45 and the fixed blade 41 are 30° - 60°, which has a better effect on cutting the straw and breaking it. A mechanical test on cutting the straw is carried out for the skiving angles of the triangular serrations of the moving blade 45 and the fixed blade 41. When the straw is supported by the blade during cutting, the minimum peak value of the cutting force per unit cross - sectional area at a skiving angle of 30° is 30.9% larger than that at skiving angles of 45° and 60°. And as the cutting speed increases, this difference gradually decreases. The minimum value of the cutting power consumption per unit cross - sectional area is 31.7% lower than that at skiving angles of 45° and 60°. Therefore, it is appropriate to select a skiving angle of about 30° in this example. The skiving angle can be changed according to the actual working conditions, and the height of the triangular serrations can be increased to adapt to different working conditions.

[0052] Specifically, the diameters of the circular arc notches at the top of the rotary tillage blade body 32, the diameters of the circular arc notches at the top of the tool holder 31, and the diameter of the tool shaft 1 are the same. Thus, when the rotary tillage blade body 32 moves upward, the notch of the rotary tillage blade body 32 contacts the tool shaft 1, which has a limiting effect on the rotary tillage blade body 32, preventing the rotary tillage blade body 32 from rising too far and reducing the tillage depth. When the rotary tillage blade body 32 moves downward, the sliding bolt 35 contacts the bottom of the straight slot 311, thereby having a limiting effect on the rotary tillage blade body 32 and preventing the rotary tillage blade body 32 from detaching from the tool holder 31.

[0053] As Figure 10 shown, the embodiment of the present invention also discloses a rotary tillage implement, which includes a rotary tillage machine frame 7 and a plurality of the above - mentioned dynamic load - attached drive - cut - off anti - sticking and anti - entanglement rotary tillage blades arranged evenly along the horizontal direction of the rotary tillage machine frame. A plurality of tool shafts are connected together in sequence to form a drive shaft 8. Both ends of the drive shaft 8 are rotatably connected to both sides of the rotary tillage machine frame 7. In this embodiment, the bending directions of two adjacent dynamic load - attached drive - cut - off anti - sticking and anti - entanglement rotary tillage blades are left - bending and right - bending respectively, and the included angle is 135°. The bending angle of each rotary tillage blade body 32 is greater than or equal to 90°.

[0054] The working principle of the present invention:

[0055] When operating in a rice stubble field, the tractor forms a sprocket drive system through the transmission sprocket and the power input sprocket, transmits the power to the cutter shaft 1, and rotates the dynamic load-driven shear and anti-sticking rotary tillage knives installed on the cutter shaft 1. During the non-soil-entering stage of the dynamic load-driven shear and anti-sticking rotary tillage knives within a cycle, the moving knife 45 and the stationary knife 41 are stationary relative to the cutter shaft 1 under the action of the compression spring 44, and the rotary tillage knife body 32 is stationary relative to the cutter shaft 1 under the action of the cylinder 33, in the same motion state as the existing rotary tiller. After the periodic rotary tillage action, the straw and the soil A are wound and adhered to the cutter shaft 1. During the soil-entering stage of the dynamic load-driven shear and anti-sticking rotary tillage knives within a cycle, the rotary tillage knife body 32 obtains a dynamic load upward along the tool rest 31 under the reaction force of the soil A, drives the moving cam 34, and further drives the axial movement of the moving knife 45. The moving knife 45 and the stationary knife 41 form a shear moving pair, and the wound straw is sheared and broken with the stationary knife 41 as a support. The cooperation of multiple shear moving and stationary knives 4 enables the wound straw to be cut off and separated from the soil A, achieving the purpose of rotary tillage and anti-sticking.

[0056] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0057] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dynamic attached drive shear-off anti-sticking and anti-tangling rotary tillage blade, characterized in that, Comprising: A cutter shaft, A housing, the housing is installed on the cutter shaft, and the housing is rotatably connected to the cutter shaft; The circumferential surface of the housing has straight slot holes, and the side surface of the housing has mounting slot holes; A load-carrying driving rotary tillage knife, the load-carrying driving rotary tillage knife is installed through the straight slot hole, and the load-carrying driving rotary tillage knife is fixedly connected to the cutter shaft perpendicular to it; A shearing moving and fixed knife, the shearing moving and fixed knife is installed through the mounting slot hole and is distributed parallel to the cutter shaft, and the shearing moving and fixed knife contacts the load-carrying driving rotary tillage knife to form a force-locking cam mechanism; The load-carrying driving rotary tillage knife includes a knife seat, a rotary tillage knife body, a cylinder, and a moving cam. The knife seat is located inside the housing and is fixedly connected to the cutter shaft; the rotary tillage knife body extends through the straight slot hole into the knife seat, and the rotary tillage knife body is connected to the knife seat by a sliding bolt, wherein the sliding bolt is fixedly connected to the mounting hole of the rotary tillage knife body, and the sliding bolt is slidably connected to the straight slot opening of the knife seat and extends out of the straight slot opening; the cylinder block of the cylinder is sleeved and installed at the end of the sliding bolt and is rotatably connected to it; the telescopic rod sleeve of the cylinder is sleeved and fixed on the short shaft on the side of the knife seat and is rotatably connected to it; the moving cam is fixed on the top of the rotary tillage knife body and is in line contact with the shearing moving and fixed knife; The shearing moving and fixed knife includes a fixed knife, a push rod, a retaining piece, a compression spring, and a moving knife. The fixed knife is fixed at the position corresponding to the mounting slot hole on the side of the housing; one end of the push rod is located in the mounting slot hole and is slidably connected to it, and the other end of the push rod extends into the fixed knife; the push rod is in line contact with the moving cam to form the force-locking cam mechanism; the retaining piece and the compression spring are both sleeved on the push rod and are both located in the mounting slot hole, and the compression spring is located between the fixed knife and the retaining piece; the moving knife is fixedly connected to the extended end of the push rod, and the moving knife is embedded in the fixed knife, so that the serrations of the moving knife extend into the serration grooves of the fixed knife.

2. The dynamic attached drive cutting and anti-sticking and anti-tangling rotary tillage knife according to claim 1, wherein Both sides inside the knife seat have straight grooves, and vertically arranged balls are installed in the straight grooves, and the balls are pressed by screws screwed at the bottom of the knife seat.

3. A dynamic attached drive shearing and anti - sticking and anti - entanglement rotary tillage blade according to claim 1, characterized in that, The end of the push rod in contact with the moving cam is coated with a rubber material.

4. A dynamic attached drive cutting and anti - sticking entanglement rotary tillage blade according to claim 1, characterized in that, A rubber pad is installed between the retaining piece and the mounting slot hole.

5. A dynamic attached drive cutting and anti-sticking and anti-tangling rotary tillage blade according to claim 1, characterized in that, The serration length of the moving knife is 10 - 15 mm smaller than the serration length of the fixed knife.

6. The dynamic attached driving cutting and anti - sticking and anti - entanglement rotary tillage blade according to claim 5, characterized in that, The skiving angles of the moving knife and the fixed knife are both 30° - 60°.

7. A dynamic attached drive shear-off anti-sticking and anti-tangling rotary tillage blade according to claim 1, characterized in that, The diameter of the circular arc notch at the top of the rotary tillage knife body, the diameter of the circular arc notch at the top of the knife seat, and the diameter of the cutter shaft are the same.

8. A rotary tillage implement, characterized in that, Including a rotary tillage machine frame and a plurality of dynamic load-carrying driving cutting and anti-sticking and entanglement rotary tillage knives as described in claim 1 arranged uniformly along the horizontal direction of the rotary tillage machine frame. A plurality of the cutter shafts are connected together in sequence to form a driving shaft, and both ends of the driving shaft are rotatably connected to both sides of the rotary tillage machine frame respectively.

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