A steering controlled ripper and cultivator

Abstract

The utility model discloses a kind of soil loosening rotary tiller mechanism of rudder control, and the free end of transmission assembly is provided with power input shaft, and the free end of the both sides of power input shaft is connected suspension frame respectively, and two suspension frames are commonly driven to cross over knife shaft, and a plurality of rotary tiller mounting seat are processed on knife shaft, and each rotary tiller mounting seat is adapted with rotary tiller, and rotary tiller is processed into L type or S type bending, and transmission assembly side is provided with rudder module, and rudder module adjusts transmission assembly angle change;The utility model adjusts dynamic angle to transmission assembly by rudder module, realizes the control of rotary tiller soil angle, and control mode is more convenient, and effectively cope with different soil working condition;Two kinds of special rotary tiller of L type and S type are used, and respectively aiming at hardening soil crushing and root stubble anti-winding working condition, solve the problem of traditional blade uneven ploughing, easy to bounce, easy to entangle;Overall structure is reasonable, transmission is reliable, significantly improve operation quality and adaptability.

Description

Technical Field

[0001] This utility model relates to a soil loosening and rotary tillage mechanism, and more particularly to a servo motor-controlled soil loosening and rotary tillage mechanism. Background Technology

[0002] Rotary tillage mechanisms, also known as rotary tillers, are generally divided into two types: vertical shaft and horizontal shaft, with the horizontal shaft type being more widely used. The swing angle of traditional horizontal shaft rotary tillers relies on purely mechanical adjustments, such as limit pins or hydraulic locking. Limit pins require manual adjustment of the limit block after the machine is stopped, which is a relatively primitive method, and its responsiveness to real-time soil changes during transitions between hard and soft soils is quite poor.

[0003] Traditional rotary tillers often use blades with a unidirectional C-shaped bending structure, which is ineffective in compacted soils, easily causing blade bounce and uneven tillage. When tilling in areas with straw roots, the unidirectional C-shaped bending blades are prone to snagging and tangling. Utility Model Content

[0004] To address the shortcomings of the aforementioned technologies, this utility model provides a servo motor-controlled rotary tillage mechanism for loosening soil.

[0005] To solve the above technical problems, the technical solution adopted by this utility model is: a servo motor controlled rotary tillage mechanism, including a transmission assembly with a built-in power source. The free end of the transmission assembly is provided with a power input shaft extending to the left and right sides. The left and right free ends of the power input shaft are respectively connected to suspension frames. The two suspension frames jointly drive and cross the cutter shaft. Several rotary tillage blade mounting seats are machined on the cutter shaft. Each rotary tillage blade mounting seat is equipped with a rotary tillage blade. The rotary tillage blade is machined into an L-shaped bend or an S-shaped bend. A servo motor module is provided on the side of the transmission assembly housing. The servo motor module is implemented by adjusting the angle of the transmission assembly.

[0006] Furthermore, the number of servo modules can be one or two. When there are two servo modules, they are arranged symmetrically to each other, and the servo modules are connected to the external tractor machinery through the PTO axis.

[0007] Furthermore, a pad is provided between the servo module and the housing of the transmission assembly.

[0008] Furthermore, the front and rear ends of the suspension frame are equipped with drive wheels that mesh with the drive belt, and the rim surface of the drive wheels has several drive grooves that are adapted to the size of the drive belt.

[0009] Furthermore, the drive wheel located at the rear end of the suspension frame is connected to the free end of the power input shaft that runs through the suspension frame, while the drive wheel located at the front end of the suspension frame is implemented in the form of a driven wheel.

[0010] Furthermore, the transmission wheels at the front ends of the two suspension frames are each equipped with coaxial bearing seats, and the cutter shaft is implemented by having its left and right ends coaxially passing through the bearing seats and being connected to the transmission wheels on their respective sides.

[0011] Furthermore, the rotary tiller blade mounting seats on the cutter shaft are arranged in a circumferential manner, and any two adjacent rotary tiller blade mounting seats are machined in a non-overlapping manner, forming a deep groove with one side open.

[0012] Furthermore, the L-shaped rotary tiller blade includes an integrally formed handle, blade body, and blade head, which together form an L-shaped bend. The handle fits into a groove and has a connecting hole. The blade head forms a multi-segment blade with a sharp transition.

[0013] Furthermore, the S-shaped rotary tiller includes an integrally formed handle, blade, and blade head, with an S-shaped bend in the blade. The handle fits into a groove and has a connecting hole. The blade head forms a single-segment blade with a smooth transition.

[0014] A servo motor-controlled rotary tillage mechanism for loosening soil dynamically adjusts the angle of the transmission assembly via a servo motor module, enabling control of the tillage blade's entry angle into the soil. This makes the control method more convenient and effectively addresses different soil conditions. It employs two specialized rotary tillage blades, L-shaped and S-shaped, specifically designed for breaking up compacted soil and preventing root stubble and straw from tangling, respectively, solving the problems of uneven tillage depth, bounce, and tangling associated with traditional blades. The overall structure is reasonable, the transmission is reliable, and it significantly improves operational quality and adaptability. Attached Figure Description

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

[0016] Figure 2 This is a partial diagram of the cutter shaft and its connecting structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the transmission connection between the drive wheel and the drive belt.

[0018] Figure 4 This is a schematic diagram of the rotary tiller blade in Example 1.

[0019] Figure 5 This is a schematic diagram of the rotary tillage blade in Example 2.

[0020] In the diagram: 1. Transmission assembly; 2. Servo module; 3. Pad; 4. Power input shaft; 5. Suspension bracket; 6. Bearing housing; 7. Cutter shaft; 8. Rotary tiller blade mounting base; 9. Deep groove; 10. Rotary tiller blade; 11. Drive wheel; 12. Drive groove; 13. Drive belt; 14. Blade holder; 15. Blade body; 16. Blade tip; 17. Blade edge; 18. Connecting hole. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1-2 As shown in the figure, the present invention relates to a servo-controlled rotary tillage mechanism, mainly comprising a transmission assembly 1, a servo module 2, a suspension frame 5, a cutter shaft 7, and rotary tillage blades 10; specifically, the transmission assembly 1 internally encapsulates a hydraulic motor or electric motor as a power source, and the left and right free ends of the power input shaft 4 are respectively connected to a suspension frame 5, the left and right suspension frames 5 jointly drive and support a horizontally arranged cutter shaft 7, as shown in the figure. Figure 2 As shown, several rotary tiller mounting seats 8 are machined along the circumference of the blade shaft 7, and each rotary tiller mounting seat 8 is fitted with a rotary tiller blade 10; in this utility model, in order to facilitate the maintenance and repair of the transmission structure inside the suspension frame 5, such as Figure 1 As shown, the suspension bracket 5 is implemented by covering the outer side with a threaded cover.

[0023] Unlike the traditional method, a servo module 2 is installed on the side of the housing of the transmission assembly 1. The output end of the servo module 2 is hinged to the housing of the transmission assembly 1. It can be understood that by the extension and retraction of the servo module 2, the entire transmission assembly 1, together with its output power input shaft 4, suspension frame 5 and cutter shaft 7, can be driven to pitch around its hinge point with the tractor, thereby realizing real-time and stepless adjustment of the soil entry angle of the rotary tiller blade 10. On this basis, in order to ensure smooth transmission clearance between the transmission assembly 1 and the servo module 2 and prevent excessive wear, a pad 3 is provided between the servo module 2 and the housing of the transmission assembly 1.

[0024] Regarding the selection of transmission assembly 1 and servo module 2, transmission assembly 1 can be a common single-stage reduction transmission assembly 1S300 model, with a peak torque of up to 750 N.m, which can provide sufficient crushing power for cutter shaft 7. The aluminum housing also helps to reduce the overall weight. Servo module 2 can be a high-torque servo motor such as DS-R009F, which can provide a stall torque of no less than 150 kgf.cm under 24V voltage, which is sufficient to drive transmission assembly 1 to pitch. Alternatively, a high-voltage servo motor of the JX brand B130-130KG can be selected. The specific parameters can be selected in conjunction with the actual weight of the components.

[0025] Example 1

[0026] This embodiment details the implementation scheme of the rotary tiller blade 10 using an L-shaped bending structure, which is particularly suitable for breaking up compacted and hard soil.

[0027] Inside each suspension frame 5, a drive wheel 11 is installed at both its front and rear ends. The drive wheel 11 at the rear end of the suspension frame 5 serves as the driving wheel, and it rotates synchronously with the free end of the power input shaft 4 that passes through the suspension frame 5 via a key connection or flange fixation. The drive wheel 11 at the front end of the suspension frame 5 serves as the driven wheel. Power is transmitted between the driving wheel and the driven wheel through one or more annular closed transmission belts 13. Several transmission grooves 12 that are adapted to the cross-sectional dimensions of the transmission belts 13 are machined on the rim surfaces of both drive wheels 11. The transmission belts 13 are embedded in the transmission grooves 12 to ensure the reliability and stability of the transmission and prevent slippage.

[0028] At the front end of each of the two suspension brackets 5, there is a bearing seat 6 that is coaxially mounted with the driven transmission wheel 11. The left and right ends of the cutter shaft 7 pass through the bearing seats 6 on the corresponding sides and are fixedly connected to the driven transmission wheel 11 by key connection or flange. Thus, power is transmitted from the transmission assembly 1, through the power input shaft 4, the belt drive system in the suspension bracket 5, and finally to the cutter shaft 7, thereby driving the cutter shaft 7 to rotate at high speed.

[0029] On the outer circumference of the blade shaft 7, several rotary tiller blade mounting seats 8 are evenly spaced along the circumferential direction. These rotary tiller blade mounting seats 8 are arranged in a non-overlapping manner in the circumferential direction, that is, there is a certain phase difference between any two adjacent rotary tiller blade mounting seats 8, so as to ensure that the rotary tiller blade 10 has sufficient movement space during operation and avoid mutual interference. Each rotary tiller blade mounting seat 8 has a single-sided open deep groove 9, which is used to install and fix the blade handle 14 part of the rotary tiller blade 10. The single-sided open deep groove 9 facilitates the replacement of the rotary tiller blade 10.

[0030] The rotary tiller blade 10 used in this embodiment has an L-shaped bending structure. The rotary tiller blade 10 is formed by forging three parts: handle 14, blade body 15, and blade head 16, forming a distinct L-shape. During installation, the handle 14 of the rotary tiller blade 10 is inserted into the groove 9 of the rotary tiller blade mounting base 8, and then a bolt is used to pass through the pre-set connection hole 18 on the handle 14 to fasten the rotary tiller blade 10 to the rotary tiller blade mounting base 8. The connection method is simple and reliable. The blade head 16 of the rotary tiller blade 10 includes multiple blade segments 17, with sharp transitions between each blade segment 17. This design allows the blade head 16 to form multiple efficient stress concentration points when cutting into compacted soil, breaking up soil clods in a manner similar to wedging and chiseling. This effectively overcomes the bouncing problem that traditional blades are prone to in hard soil, thus ensuring the uniformity of tillage depth.

[0031] When soil hardness changes during operation, the control system of servo module 2 instructs servo module 2 to move. For example, when tilling extremely compacted land, servo module 2 pushes transmission assembly 1 to tilt it forward, thereby increasing the cutting rake angle of rotary tiller blade 10 and allowing it to cut into the soil with a sharper posture. When the soil is relatively soft, the mechanism can be adjusted to tilt backward to optimize the soil breaking and covering effect. The whole process does not require stopping the machine, realizing adaptive tillage.

[0032] Example 2

[0033] This embodiment details the implementation scheme of the rotary tiller 10 with an S-shaped bending structure. The rotary tiller 10 with an S-shaped bending structure is mainly used in stubble fields and straw-covered fields where tangling is easy.

[0034] In this embodiment, the transmission assembly 1, servo module 2, suspension frame 5 transmission system, and tool shaft 7 drive method are basically the same as in embodiment one, so they will not be repeated here.

[0035] The difference in this embodiment is that the rotary tiller 10 used has an S-shaped bending structure. The rotary tiller 10 is also integrally formed from the handle 14, the blade 15 and the blade head 16. The difference is that the blade 15 is processed into an S-shaped curve. The installation method of the rotary tiller 10 is the same as that in Embodiment 1, that is, the handle 14 is embedded in the deep groove 9 of the rotary tiller mounting base 8 and fastened by the bolt passing through the connecting hole 18. The blade head 16 of the rotary tiller 10 is designed as a continuous, smoothly transitioning single blade 17.

[0036] Based on this, the S-shaped blade 15, when rotating, can generate a guiding and pushing force on flexible materials such as straw, weeds, and roots, rather than rigidly hooking them. This smooth curved deformation design allows the blade to cut or prevent entanglement when it comes into contact with the tangled material, thus significantly reducing the occurrence of entanglement. At the same time, the smooth single-segment blade 17 interacts more gently with the soil, resulting in better shearing and spreading effects on the soil, which is conducive to forming a fine and flat seedbed.

[0037] Under such operating conditions, the adjustment function of the servo module 2 is the same as that in Embodiment 1. The operator can make real-time fine adjustments to the angle of the rotary tillage mechanism according to the amount of straw in the field and the density of the root system. For example, the mechanism can be adjusted so that the rotary tillage blade 10 of this embodiment contacts and processes the straw layer first with the middle of its curve, thereby maximizing its anti-tangling performance and straw burial effect.

[0038] This application discloses a servo motor-controlled rotary tillage mechanism. The servo motor module dynamically adjusts the angle of the transmission assembly, enabling control of the rotary tillage blade's entry angle into the soil. This control method is more convenient and effectively addresses different soil conditions. Two types of dedicated rotary tillage blades, L-shaped and S-shaped, are used to break up compacted soil and prevent root stubble and straw from tangling, respectively, solving the problems of uneven tillage depth, easy bouncing, and easy tangling of traditional blades. The overall structure is reasonable, the transmission is reliable, and the operation quality and adaptability are significantly improved.

[0039] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A servo motor-controlled rotary tillage mechanism, characterized in that: The transmission assembly (1) includes a built-in power source. The free end of the transmission assembly (1) is provided with a power input shaft (4) extending to the left and right sides. The left and right free ends of the power input shaft (4) are respectively connected to a suspension frame (5). The two suspension frames (5) are connected together to drive a cutter shaft (7). Several rotary tiller mounting seats (8) are machined on the cutter shaft (7). Each rotary tiller mounting seat (8) is equipped with a rotary tiller (10). The rotary tiller (10) is machined into an L-shaped bend or an S-shaped bend. A servo module (2) is provided on the side of the housing of the transmission assembly (1). The servo module (2) is implemented by adjusting the angle of the transmission assembly (1).

2. The servo-controlled rotary tillage mechanism according to claim 1, characterized in that: The number of servo modules (2) is one or two. When the number of servo modules (2) is two, the two servo modules (2) are arranged symmetrically to each other. The servo modules (2) are connected to the external tractor machinery through the PTO shaft.

3. The servo-controlled rotary tillage mechanism according to claim 2, characterized in that: A pad (3) is provided between the servo module (2) and the housing of the transmission assembly (1).

4. The servo-controlled rotary tillage mechanism according to claim 1, characterized in that: The suspension frame (5) is equipped with transmission wheels (11) that mesh with the transmission belt (13) at both the front and rear ends. The rim surface of the transmission wheel (11) has several transmission grooves (12) that are adapted to the size of the transmission belt (13).

5. The servo-controlled rotary tillage mechanism according to claim 4, characterized in that: The drive wheel (11) located at the rear end of the suspension frame (5) is connected to the free end of the power input shaft (4) that passes through the suspension frame (5), so the drive wheel (11) located at the front end of the suspension frame (5) is implemented as a driven wheel.

6. The servo-controlled rotary tillage mechanism according to claim 5, characterized in that: The transmission wheels (11) at the front end of each of the two suspension frames (5) are respectively equipped with coaxial bearing seats (6), and the cutter shaft (7) is implemented in such a way that its left and right ends coaxially pass through the bearing seats (6) and are connected to the transmission wheels (11) on their respective sides.

7. The servo-controlled rotary tillage mechanism according to claim 1, characterized in that: Rotary tillage blade mounting seats (8) on the cutter shaft (7) are arranged around its circumference, and any two adjacent rotary tillage blade mounting seats (8) are processed in a non-overlapping manner, and the rotary tillage blade mounting seats (8) form a deep groove (9) with one side open.

8. The servo-controlled rotary tillage mechanism according to claim 7, characterized in that: The L-shaped rotary tiller (10) includes an integrally formed handle (14), blade (15), and blade head (16), which together form an L-shaped bend. The handle (14) fits into a groove (9) and has a connecting hole (18). The blade head (16) forms a multi-segment blade (17) with sharp transitions.

9. The servo-controlled rotary tillage mechanism according to claim 7, characterized in that: The rotary tiller (10) with an S-shaped bend includes an integrally formed handle (14), a blade (15), and a blade head (16), with an S-shaped bend at the blade (15). The handle (14) fits into a recessed groove (9) and has a connecting hole (18). The blade head (16) forms a single-segment blade (17) with a smooth transition.

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