A rotary tillage tool assembly for improved soil penetration

Abstract

This invention relates to the technical field of agriculture and discloses a rotary tiller assembly for improving soil penetration. The assembly includes an operating chamber, a track adapted and installed at the bottom of the operating chamber, a transmission component fixedly installed at the end of the operating chamber, a mounting component hinged to the side wall of the operating chamber, a fixed frame fixedly installed at the end of the transmission component, and a rotary tiller head adapted and installed at the bottom of the fixed frame. The mounting component includes an operating frame fixedly installed at the bottom of the operating chamber, an operating shaft fixedly connected to the side wall of the operating frame, a rotating rod inserted into the center of the operating shaft, a first suspension rod rotatably installed on the outer surface of the rotating rod, and a second suspension rod rotatably installed above the first suspension rod and used in conjunction with the first suspension rod. Through the cooperation between the mounting component and the operating shaft, flexible and stable adjustment of the tillage depth of the rotary tiller head can be achieved. The oil groove, spring, and sponge plate structure inside the operating shaft effectively absorbs impacts and vibrations during operation.

Description

Technical Field

[0001] This invention relates to the field of agricultural technology, and more particularly to a rotary tillage blade assembly for improving soil penetration. Background Technology

[0002] A rotary tillage blade assembly for improving soil depth is an agricultural machinery device whose main function is to achieve precise, stable and efficient adjustment of soil tillage depth through an improved mechanical structure and transmission system, making it particularly suitable for agricultural scenarios requiring deep tillage operations.

[0003] In actual operation, high-load and high-wear farming environments require frequent and repeated manual maintenance of the equipment. Due to its complex transmission path, it also brings significant power loss, which is not conducive to efficient and in-depth farming. If it is not maintained, it may lead to greater wear and tear on the equipment and affect its service life. Summary of the Invention

[0004] In view of the problems existing in the current rotary tillage blade assembly for improving soil penetration, the present invention is proposed.

[0005] Therefore, the object of this invention is to provide a rotary tillage blade assembly that improves soil penetration.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including, The operating compartment, the track adapted to be installed at the bottom of the operating compartment, the transmission component fixedly installed at the end of the operating compartment, the mounting component hinged to the side wall of the operating compartment, the fixed frame fixedly installed at the end of the transmission component, and the rotary tiller head adapted to be installed at the bottom of the fixed frame; The mounting components include an operating frame fixedly installed at the bottom of the operating compartment, an operating shaft fixedly connected to the side wall of the operating frame, a rotating rod inserted into the center of the operating shaft, a first suspension rod rotatably installed on the outer surface of the rotating rod, and a second suspension rod rotatably installed above the first suspension rod and used in conjunction with the first suspension rod. The operating shaft includes a shaft housing, a insertion groove formed in the center of the shaft housing, a retaining shell that is engaged in the inner cavity of the insertion groove, a rotor that is engaged in the side surface of the retaining shell, a contact shell that is in contact with the rotor, and an oil groove formed in the center of the shaft housing. The operating shaft also includes a slide rod fixedly connected to the inner cavity of the oil tank, a push plate sleeved on the outer surface of the slide rod, and a limiting spring fixedly connected to the side wall of the push plate. The inner cavity of the shaft housing has two oil grooves, which are used in conjunction with the first suspension rod. The limiting spring is sleeved on the outer surface of the slide rod, and the push plate is used in conjunction with the limiting spring. The operating shaft also includes a sponge plate fixedly connected to the end of the limiting spring, a ball bearing in contact with the side wall of the sponge plate, a fixing plate fixedly connected to the side surface of the ball bearing, and a slot formed on the side surface of the retaining shell.

[0007] As a preferred embodiment of the rotary tillage blade assembly for improving soil depth described in this invention, the first suspension rod is symmetrically arranged in two sets, and both sets of the first suspension rod are used in conjunction with the second suspension rod, forming a three-point suspension with the two sets of the first suspension rod and the second suspension rod.

[0008] As a preferred embodiment of the rotary tillage blade assembly for improving soil penetration according to the present invention, the rotor is in contact with both the clamping shell and the contact shell, the rotor is clamped onto the side surface of the clamping shell, and the rotor is used in conjunction with the first suspension rod.

[0009] As a preferred embodiment of the rotary tillage blade assembly for improving soil depth according to the present invention, wherein: one side of the sponge plate is in contact with the oil groove portion, the fixing plate is configured as an elastic plate, and is used in conjunction with the ball bearing and the sponge plate.

[0010] As a preferred embodiment of the rotary tillage blade assembly for improving soil penetration according to the present invention, the rotary tillage head includes a protective shell fixedly installed at the bottom of the fixed frame, a protective shell fixedly connected to the bottom of the protective shell, a rotating shaft adapted to be installed on the inner wall of the protective shell, a blade head fixedly installed on the outer surface of the rotating shaft, and a drive motor adapted to be installed in the inner cavity of the protective shell.

[0011] As a preferred embodiment of the rotary tillage blade assembly for improving soil penetration according to the present invention, the rotating shaft surface is provided with multiple sets of blades, the blades are curved blades, and the curved blades are made of a rigid material, and the drive motor drives the blades to operate independently.

[0012] The beneficial effects of this invention are as follows: Through the coordinated arrangement of the mounting components and the operating shaft, flexible and stable adjustment of the tillage depth of the rotary tiller can be achieved. The oil groove, spring, and sponge plate structure inside the operating shaft effectively absorb the impact and vibration during operation. The oil groove can lubricate the inside of the operating shaft, ensuring the smoothness and reliability of depth adjustment. At the same time, the design of the rotating rod and rigid curved head improves the stability of the overall structure and the soil penetration performance. Ultimately, while increasing the tillage depth, it also improves the durability and ease of operation of the entire component. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 This is a partial structural diagram of the mounting component of the present invention.

[0015] Figure 3 This is a schematic diagram of the shaft housing structure of the present invention.

[0016] Figure 4 This is a partial cross-sectional view of the operating shaft of the present invention.

[0017] Figure 5 This is a cross-sectional view of the operating shaft structure of the present invention.

[0018] Figure 6 This is a schematic diagram of the casing structure of the present invention.

[0019] Figure 7 This is a schematic diagram of the mounting component structure of the present invention.

[0020] Figure 8 This is a partial structural diagram of the rotary tiller head of the present invention.

[0021] In the diagram: 101, operating compartment; 102, track; 103, transmission component; 104, mounting component; 105, fixed frame; 106, rotary tiller head; 104a, operating frame; 104b, operating shaft; 104c, rotating rod; 104d, first suspension rod; 104e, second suspension rod; 104b-1, shaft housing; 104b-2, insertion slot; 104b-3, retaining clip; 104b-4, rotor; 10 4b-5, Contact shell; 104b-6, Oil groove; 104b-7, Slide rod; 104b-8, Push plate; 104b-9, Limiting spring; 104b-10, Sponge plate; 104b-11, Ball bearing; 104b-12, Fixing plate; 104b-13, Slot; 106a, Protective shell; 106b, Protective housing; 106c, Rotating shaft; 106d, Cutting head; 106e, Drive motor. Detailed Implementation

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0025] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth. Example

[0026] Reference Figure 1-6 The first embodiment of the present invention provides a rotary tillage blade assembly for improving soil penetration, the device comprising:

[0027] The operating chamber 101, the track 102 adapted to be installed at the bottom of the operating chamber 101, the transmission component 103 fixedly installed at the end of the operating chamber 101, the mounting component 104 hinged to the side wall of the operating chamber 101, the fixing frame 105 fixedly installed at the end of the transmission component 103, and the rotary tiller head 106 adapted to be installed at the bottom of the fixing frame 105. Mounting component 104 includes an operating frame 104a fixedly mounted at the bottom of the operating compartment 101, an operating shaft 104b fixedly connected to the side wall of the operating frame 104a, a rotating rod 104c inserted into the center of the operating shaft 104b, a first suspension rod 104d rotatably mounted on the outer surface of the rotating rod 104c, and a second suspension rod 104e rotatably mounted above the first suspension rod 104d and used in conjunction with the first suspension rod 104d.

[0028] Specifically, the track 102 is equipped with two sets, and each track is driven by a separate motor installed inside the operating compartment 101. This minimizes the need for overall equipment maintenance in case of motor failure.

[0029] Two sets of first suspension rods 104d are symmetrically arranged, and both sets of first suspension rods 104d are used in conjunction with second suspension rods 104e, forming a three-point suspension with the two sets of first suspension rods 104d and second suspension rods 104e.

[0030] The operating shaft 104b includes a shaft housing 104b-1, a insertion groove 104b-2 formed in the center of the shaft housing 104b-1, a retaining shell 104b-3 that is engaged in the inner cavity of the insertion groove 104b-2, a rotor 104b-4 that is engaged in the side surface of the retaining shell 104b-3, a contact shell 104b-5 that is in contact with the rotor 104b-4, and an oil groove 104b-6 formed in the center of the shaft housing 104b-1.

[0031] The rotor 104b-4 is in contact with the retaining housing 104b-3 and the contact housing 104b-5. The rotor 104b-4 is engaged with the side surface of the retaining housing 104b-3. The rotor 104b-4 is used in conjunction with the first suspension rod 104d.

[0032] The operating shaft 104b also includes a slide rod 104b-7 fixedly connected to the inner cavity of the oil groove 104b-6, a push plate 104b-8 sleeved on the outer surface of the slide rod 104b-7, and a limiting spring 104b-9 fixedly connected to the side wall of the push plate 104b-8.

[0033] The inner cavity of the shaft housing 104b-1 has two oil grooves 104b-6, which are used in conjunction with the first suspension rod 104d. The limiting spring 104b-9 is sleeved on the outer surface of the slide rod 104b-7, and the push plate 104b-8 is used in conjunction with the limiting spring 104b-9.

[0034] The operating shaft 104b also includes a sponge plate 104b-10 fixedly connected to the end of the limiting spring 104b-9, a ball bearing 104b-11 in contact with the side wall of the sponge plate 104b-10, a fixing plate 104b-12 fixedly connected to the side surface of the ball bearing 104b-11, and a slot 104b-13 formed on the side surface of the retainer 104b-3.

[0035] One side of the sponge plate 104b-10 is in contact with the oil tank 104b-6. The fixing plate 104b-12 is set as an elastic plate and is used in conjunction with the ball bearing 104b-11 and the sponge plate 104b-10.

[0036] Furthermore, when the operating shaft 104d is subjected to force on the rotor 104b-4, the rotor 104b-4 pushes the clasp 104b-3 to generate axial displacement, squeezing the lubricating medium in the oil grooves 104b-6 on both sides, forcing the push plate 104b-8 to compress the limiting spring 104b-9 along the slide rod 104b-7. At the same time, the spring pressure is transmitted to the ball 104b-11 through the sponge plate 104b-10. The ball 104b-11 rolls along the groove 104b-13 on the surface of the clasp 104b-3 and is constrained by the elastic fixing plate 104b-12, forming flexible damping. This converts the mechanical impact into the elastic potential energy of the spring and the fluid damping of the sponge plate 104b-10, realizing multi-stage buffering and vibration absorption in the power transmission process, and ensuring the smooth operation of the operating shaft 104b.

[0037] In use, the device moves by two independent motors driving the tracks 102 at the bottom of the operating chamber 101. The transmission component 103 at the end of the operating chamber drives the rotary tiller head 106 at the bottom of the fixed frame 105 to perform tillage. The side wall of the operating chamber is hinged to the mounting component 104 through the operating frame 104a and the operating shaft 104b. The operating shaft uses the limiting spring 104b-9 in the oil groove 104b-6 to push the push plate 104b-8 and the sponge plate 104b-10, so that the ball bearing 104b-11 cooperates with the fixed plate 104b-12 to stably support the rotor 104b-4 and the clasp 104b-3, ensuring that the three-point suspension structure formed by the first suspension rod 104d and the second suspension rod 104e can be flexibly adjusted and kept balanced during tillage.

[0038] The axial movement of the chuck compresses the grease or hydraulic oil in the symmetrically arranged oil grooves 104b-6 on both sides, forming a high-pressure oil film. The high-pressure medium pushes the push plate 104b-8 to slide along the slide rod 104b-7, compressing the limit spring 104b-9 and converting part of the impact kinetic energy into the elastic potential energy of the spring. At the same time, the spring pressure is transmitted to multiple balls 104b-11 through the sponge plate 104b-10 at the end. The porous structure of the sponge plate can further absorb the pressure pulse and high-frequency vibration of the oil.

[0039] These balls are constrained between the elastic fixing plate 104b-12 and the groove 104b-13 on the surface of the chuck, converting pressure into rolling friction. The rolling of the balls in the groove realizes the flexible transmission of force and allows the chuck to self-adaptively deflect within a small range, thereby offsetting the impact of uneven soil loading. Throughout the process, the operating vibration of the equipment will excite the balls to produce slight wobbling. This wobbling, in conjunction with the elastic fixing plate, acts like a miniature pump, causing the lubricant in the oil sump to penetrate into the friction interface through the sponge plate, achieving continuous and adaptive lubrication of the internal moving parts of the operating shaft.

[0040] Ultimately, the smooth power, after multi-stage buffering and lubrication, stabilizes the rotary tiller head 106 synchronously through two symmetrically distributed rotating rods 104c. This overcomes the shortcomings of unstable depth control in traditional mechanisms, achieving superior performance in deep tillage with smooth drive, constant depth, and strong impact resistance, significantly improving operational reliability and service life under complex working conditions.

[0041] In summary, the lubrication and buffering structures inside the operating shaft 104b are configured as follows: Oil tank 104b-6 lubrication: Not only does it provide continuous lubrication, but its sealed viscous medium also acts as a "liquid spring" to absorb the first wave of impact, effectively dissipating high-frequency vibrations through fluid damping.

[0042] Spring energy storage: The limiting spring, as the core energy storage element, converts sudden and destructive impact loads into elastic potential energy that can be slowly released, thus avoiding hard collisions.

[0043] Sponge vibration absorption: The porous sponge board, with its unique design, combines oil storage, vibration filtering, and secondary buffering functions, effectively smoothing oil pressure pulses and absorbing low-frequency vibrations that the spring cannot completely dissipate.

[0044] 104b-11 ball bearing flexible transmission: It transforms traditional sliding friction into rolling friction, reducing transmission resistance; its cooperation with the elastic fixed plate allows for small adaptive deformation while protecting the entire transmission chain.

[0045] Meanwhile, the design of the rotating rod 104c structure forms a stable force triangle transmission path, ensuring that the rotary tiller head 106 will not deflect or twist when subjected to asymmetrical soil resistance, thereby ensuring the uniformity of tillage depth and the flatness of the furrow bottom. Example

[0046] Reference Figure 7-8 This is the second embodiment of the present invention, which differs from the first embodiment in that it includes a rotary tillage head 106 that improves rotary tillage efficiency.

[0047] Furthermore, the rotary tiller head 106 includes a protective shell 106a fixedly installed at the bottom of the fixed frame 105, a protective shell 106b fixedly connected to the bottom of the protective shell 106a, a rotating shaft 106c adapted to be installed on the inner wall of the protective shell 106b, a cutter head 106d fixedly installed on the outer surface of the rotating shaft 106c, and a drive motor 106e adapted to be installed in the inner cavity of the protective shell 106a.

[0048] The surface of the rotating shaft 106c is provided with multiple sets of cutter heads 106d, and the cutter heads 106d are set as curved cutters, and the curved cutters are made of rigid material. The drive motor 106e drives the cutter heads 106d to perform operations independently.

[0049] Furthermore, during operation, the drive motor starts, and its output power is directly transmitted to the rotating shaft, driving multiple sets of rigid curved blades fixed to the surface of the shaft to rotate at high speed. The rotating blades cut into and break the soil, completing the rotary tillage operation. During this process, the protective shell and the protective cover together form a closed structure, effectively isolating soil and gravel, providing reliable protection for the internal drive motor and rotating shaft, and ensuring stable operation under complex working conditions. When the motor drives the tracks to rotate, the track speed can be adapted to the rotation speed of the rotary tillage blades. When the motor drives the track at high speed, the rotary tiller head accelerates the tilling process by matching the track speed with the drive motor's rotation speed. When the motor drives the track speed to decrease, the speed of the drive motor will also decrease, and the rotation speed of the rotary tiller head will also decrease.

[0050] During use, the operator drives the rotary tiller and simultaneously coordinates the rotary tiller blades to stabilize the operating frame against the operating chamber. During operation, the first and second suspension rods work together to transmit the force of the rotating rod to the operating shaft, which has multi-stage buffering and lubrication functions. The operating shaft converts the swing of the operating frame into axial displacement of the housing, and effectively absorbs impacts and vibrations during operation using internal oil groove damping, spring energy storage, sponge vibration absorption, and ball bearing flexible transmission mechanisms. The drive motor then drives the rotary tiller head to perform rotary tillage. The curved blade design of the rotary tiller head maximizes the stability and soil penetration performance of the blades during operation.

[0051] In summary, a highly efficient multi-stage buffer system is constructed by integrating oil groove damping, spring energy storage, sponge vibration absorption, and ball flexible transmission mechanism inside the operating shaft. This system effectively converts impact loads during operation into elastic potential energy and fluid damping, improving the smoothness of power transmission and the equipment's impact resistance. The combination of symmetrically arranged rotating rods and a closed-type protective rotary tiller head ensures constant tillage depth, flat furrow bottom, and reliable operation under complex working conditions. The overall structural design achieves flexible drive and stable support throughout the entire path from operation input to work execution, effectively extending the equipment's service life and improving tillage quality.

[0052] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims. Furthermore, for the purpose of providing a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features not relevant to the currently considered best mode for carrying out the invention, or those features not relevant to implementing the invention) may be omitted.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A rotary tillage tool assembly for improved soil penetration, comprising: include, The operating chamber (101), the track (102) adapted to be installed at the bottom of the operating chamber (101), the transmission component (103) fixedly installed at the end of the operating chamber (101), the mounting component (104) hinged to the side wall of the operating chamber (101), the fixing frame (105) fixedly installed at the end of the transmission component (103), and the rotary tiller head (106) adapted to be installed at the bottom of the fixing frame (105). The mounting component (104) includes an operating frame (104a) fixedly installed at the bottom of the operating compartment (101), an operating shaft (104b) fixedly connected to the side wall of the operating frame (104a), a rotating rod (104c) inserted into the center of the operating shaft (104b), a first suspension rod (104d) rotatably installed on the outer surface of the rotating rod (104c), and a second suspension rod (104e) rotatably installed above the first suspension rod (104d) and used in conjunction with the first suspension rod (104d). The operating shaft (104b) includes a shaft housing (104b-1), a insertion groove (104b-2) formed in the center of the shaft housing (104b-1), a retaining shell (104b-3) that is engaged in the inner cavity of the insertion groove (104b-2), a rotor (104b-4) that is engaged in the side surface of the retaining shell (104b-3), a contact shell (104b-5) that is in contact with the rotor (104b-4), and an oil groove (104b-6) formed in the center of the shaft housing (104b-1). The operating shaft (104b) also includes a slide rod (104b-7) fixedly connected to the inner cavity of the oil tank (104b-6), a push plate (104b-8) sleeved on the outer surface of the slide rod (104b-7), and a limiting spring (104b-9) fixedly connected to the side wall of the push plate (104b-8). The inner cavity of the shaft housing (104b-1) has two oil grooves (104b-6), and the two oil grooves (104b-6) are used in conjunction with the first suspension rod (104d). The limiting spring (104b-9) is sleeved on the outer surface of the slide rod (104b-7), and the push plate (104b-8) is used in conjunction with the limiting spring (104b-9). The operating shaft (104b) also includes a sponge plate (104b-10) fixedly connected to the end of the limiting spring (104b-9), a ball (104b-11) in contact with the side wall of the sponge plate (104b-10), a fixing plate (104b-12) fixedly connected to the side surface of the ball (104b-11), and a slot (104b-13) formed on the side surface of the retaining shell (104b-3).

2. The rotary tillage tool assembly of claim 1 wherein: Two sets of the first suspension rod (104d) are symmetrically arranged, and both sets of the first suspension rod (104d) are used in conjunction with the second suspension rod (104e). The two sets of first suspension rods (104d) and the second suspension rod (104e) form a three-point suspension.

3. The rotary tillage tool assembly of claim 2, wherein: The rotor (104b-4) is in contact with the retaining shell (104b-3) and the contact shell (104b-5). The rotor (104b-4) is engaged with the side surface of the retaining shell (104b-3). The rotor (104b-4) is used in conjunction with the first suspension rod (104d).

4. The rotary tillage blade assembly for improving soil penetration according to claim 3, characterized in that: One side of the sponge plate (104b-10) is in contact with the oil groove (104b-6), and the fixing plate (104b-12) is set as an elastic plate and is used in conjunction with the ball bearing (104b-11) and the sponge plate (104b-10).

5. A rotary tillage blade assembly for improving soil penetration according to claim 1, characterized in that: The rotary tiller (106) includes a protective shell (106a) fixedly installed at the bottom of the fixed frame (105), a protective shell (106b) fixedly connected to the bottom of the protective shell (106a), a rotating shaft (106c) adapted to be installed on the inner wall of the protective shell (106b), a cutter head (106d) fixedly installed on the outer surface of the rotating shaft (106c), and a drive motor (106e) adapted to be installed in the inner cavity of the protective shell (106a).

6. A rotary tillage blade assembly for improving soil penetration according to claim 5, characterized in that: The rotating shaft (106c) has multiple sets of cutter heads (106d) on its surface, and the cutter heads (106d) are curved blades made of rigid material. The drive motor (106e) drives the cutter heads (106d) to perform operations independently.

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