Modularized hydraulically-driven strip tillage machine

Abstract

The utility model discloses a modular hydraulically-driven strip tillage machine which comprises a machine frame connected with a tractor in a hanging mode and a plurality of tillage units arranged on the machine frame, and each tillage unit comprises an adjusting frame, a first hydraulic motor arranged on the adjusting frame and a rotary tillage knife roll directly driven by the first hydraulic motor. Each cultivation unit is in sliding connection with the rack through a sliding adjusting mechanism; the strip tilling machine is further provided with a hydraulic driving system, and the hydraulic driving system comprises a multi-way hydraulic valve set for supplying oil to all the first hydraulic motors and a row spacing adjusting oil cylinder for driving all the tilling units to synchronously move in the opposite direction or the reverse direction along the rack so as to adjust the row spacing. A first transverse rod and a second transverse rod are fixedly connected to the rack in a penetrating mode. The row spacing adjusting mechanism has the advantages of dynamic and accurate row spacing adjustment, reliable locking, simplified structure and efficient operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, concretely is a modularization hydraulic drive's strip cultivator. BACKGROUND

[0002] In recent years, with the popularization of conservation tillage technology, straw returning strip tillage technology has been widely used in corn planting areas in China because it can effectively retain straw, improve soil fertility, create a good environment for seedling bed, and ensure the emergence rate. The common strip land preparation machine on the market usually adopts mechanical transmission mode, and the power is usually provided by the tractor power output shaft, which is distributed through the main gear box and then transmitted to the rotary tiller roller of each tillage unit through mechanical components such as transmission shaft, chain or belt.

[0003] At present, the existing strip cultivator mainly has the following problems when adapting to the change of row spacing of different crops or agricultural requirements: the row spacing adjustment of the tillage unit is mostly completed manually, the operator needs to loosen the fixing device such as bolt one by one, move the tillage unit to the target position according to experience, and then re-tighten it, which is tedious, time-consuming and laborious, and the adjustment accuracy is difficult to guarantee, which affects the operation quality; in addition, even if some improved models use cylinders or oil cylinders as power to drive the tillage unit to move to realize row spacing adjustment, due to the lack of a special mechanism that is reliable, convenient and can be automatically or quickly locked after adjustment, the tillage unit is prone to accidental displacement or loosening during subsequent high-intensity operation due to uneven soil resistance, machine vibration and other factors, thereby changing the preset row spacing and seriously affecting the consistency and stability of strip tillage. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a modularization hydraulic drive's strip cultivator, has row spacing adjustment power and precision, locking is reliable, structure simplification and operation high efficiency's advantage, solved the problem in the prior art.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A modularization hydraulic drive's strip cultivator, including the rack that is hung with tractor connection and the several tillage units that are set up on the rack, the tillage unit includes the adjustment frame, the first hydraulic motor that sets up on the adjustment frame and the rotary tiller roller that is directly driven by the first hydraulic motor;

[0007] Each tillage unit is slidably connected with the rack through a sliding adjustment mechanism;

[0008] The strip cultivator is also provided with a hydraulic drive system, which includes a multi-way hydraulic valve group for supplying oil to all first hydraulic motors, and a row spacing adjustment cylinder for driving each tillage unit to move along the rack in a synchronous and opposite direction to adjust the row spacing;

[0009] A first crossbar and a second crossbar are fixedly connected through the frame. The first crossbar, the second crossbar, and the sliding adjustment mechanism are all equipped with a locking mechanism for locking the tillage unit to the frame after the row spacing is adjusted to the correct position.

[0010] The frame is also equipped with a control mechanism.

[0011] Preferably, the sliding adjustment mechanism includes a slide groove formed on the frame and a slider disposed on the inner wall of the adjustment frame and cooperating with the slide groove. The cylinder body of the row spacing adjustment cylinder is hinged to the frame, and its piston rod is hinged to the upper end of the adjustment frame of the tillage unit.

[0012] It is worth noting that the sliding adjustment mechanism adopts a design that combines a sliding groove and a sliding block, achieving a stable sliding connection between the tillage unit and the frame. This structure ensures the linearity and smoothness of movement, reduces jamming and shaking during the adjustment process, thereby improving the accuracy and reliability of row spacing adjustment and adapting to the planting requirements of different crops. Secondly, the row spacing adjustment cylinder is connected by a hinge, allowing the relative movement between the frame and the adjustment frame to be adapted when driving the tillage unit to move, avoiding stress concentration and extending the service life of key components.

[0013] Preferably, the multi-way hydraulic valve group is integrated on the frame, and its oil inlet and return port are connected to the hydraulic output system of the tractor through quick couplings. Each of its working oil ports is connected to each first hydraulic motor and the line spacing adjustment cylinder through hydraulic hoses.

[0014] It is worth noting that the integrated design simplifies the hydraulic system layout, reduces the number of external pipes and joints, lowers the risk of leakage and maintenance costs, and improves the system's compactness and reliability. Secondly, the quick couplings allow for rapid connection and disconnection of the hydraulic output systems of the tiller and tractor, saving installation time and improving operational efficiency.

[0015] Preferably, the adjusting frame is also equipped with a soil covering mechanism, which includes a fixed frame fixedly installed on the adjusting frame, a soil covering disc rotatably installed on the fixed frame, and a second hydraulic motor installed on the fixed frame. The second hydraulic motor is used to drive the soil covering disc to rotate.

[0016] It is worth noting that the independent hydraulic drive provides controllable covering power, making the rotation speed of the covering disc adjustable. This allows for optimization of the covering effect based on soil conditions and tillage needs, improving the quality of the seedbed. This design enables coordinated operation of rotary tillage and covering, completing soil breaking and covering simultaneously during the movement of the tillage unit, reducing the number of operations and improving overall efficiency.

[0017] Preferably, the locking mechanism is an elastic positioning locking mechanism, comprising: a horizontal frame fixedly mounted on the side wall of the adjusting frame, with multiple positioning holes extending through both the upper and lower ends of the horizontal frame along its length; and a vertical block fixedly connected to the first horizontal bar and / or the second horizontal bar, the vertical block having a U-shaped plate, the horizontal frame being slidably mounted in the inner cavity of the U-shaped plate; at least one elastic positioning unit is provided on both the upper and lower inner walls of the U-shaped plate, the elastic positioning unit comprising a limiting cylinder, a first spring placed inside the limiting cylinder, and a compression ball pushed by the first spring, the compression ball being adapted to the positioning hole; when the tillage unit moves to the target position, at least one pair of corresponding compression balls are engaged in the corresponding positioning hole under the action of the first spring.

[0018] It is worth noting that the design provides a fast and automatic locking function. When the tillage unit moves to the target position, the squeeze ball automatically engages with the positioning hole under the action of the spring, achieving instant locking, reducing manual operation steps and improving adjustment efficiency. Secondly, the elastic mechanism allows the locked state to be maintained during slight overload or vibration during adjustment, enhancing stability and safety and preventing the tillage unit from being accidentally displaced.

[0019] Preferably, the locking mechanism is a hydraulic clamping locking mechanism, comprising: a sliding frame fixedly sleeved on the first and second crossbars, the sliding frame being fixedly connected to an adjusting frame; a short column fixedly disposed on one side of the sliding frame; a fixed cylinder slidably sleeved on the short column, the fixed cylinder being coaxially disposed with the short column; a second spring sleeved on the short column and located between the sliding frame and the fixed cylinder; a fixed block fixed on the frame; and a locking cylinder mounted on the fixed block, the piston rod end of the locking cylinder being connected to the fixed cylinder; when locking is required, the locking cylinder actuates, pulling the fixed cylinder to compress the second spring, thereby generating friction between the sliding frame and the first and second crossbars to achieve locking.

[0020] It is worth noting that the hydraulic drive provides a strong locking force, ensuring a stable friction between the sliding frame and the crossbar, effectively preventing the tillage unit from slipping during high-pressure operations, improving locking reliability, and achieving automated operation through hydraulic system integration, reducing manual intervention, and improving adjustment convenience and operating efficiency; in addition, the spring buffer mechanism absorbs impact during the locking process, avoiding component damage caused by hard locking and extending the service life of the mechanism.

[0021] Preferably, there is a gap between the outer peripheral wall of the short column and the inner coil of the second spring.

[0022] It is worth noting that a gap is provided between the short post and the inner ring of the second spring. This gap reduces the contact area between the spring and the short post, lowers the frictional resistance, and makes the spring move more smoothly during compression and rebound, thereby improving the response speed and reliability of the locking mechanism.

[0023] Preferably, the control mechanism is a main controller, which is electrically connected to the solenoid directional valve in the hydraulic drive system and is used to control the movement of the line spacing adjustment cylinder.

[0024] It is worth noting that this design achieves automated control of line spacing adjustment. The main controller is programmable or receives commands to precisely control the extension and retraction of the line spacing adjustment cylinder, improving adjustment accuracy and consistency and reducing human error.

[0025] Preferably, it also includes a displacement sensor for detecting the displacement of the piston rod of the row spacing adjustment cylinder, and the signal output terminal of the displacement sensor is connected to the main controller.

[0026] It is worth noting that the sensor provides real-time displacement feedback, enabling the main controller to accurately monitor the position of the tillage unit and achieve closed-loop control, ensuring high precision and repeatability of row spacing adjustment; secondly, the feedback mechanism allows for automatic calibration and error compensation, maintaining stable adjustment even under load changes or hydraulic fluctuations, improving the reliability and adaptability of the system.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] 1. This utility model, by setting a row spacing adjustment cylinder controlled by a main controller and optionally equipped with a displacement sensor to form a closed-loop control, can drive each tillage unit to move synchronously and smoothly along the frame, realizing the power and automation of row spacing adjustment. Operators can accurately and quickly set the row spacing in the cab without getting off the machine, completely solving the technical problems of traditional methods that rely on manual adjustment, are cumbersome and laborious to operate, and have difficulty in guaranteeing accuracy, and significantly improving work efficiency and adaptability.

[0029] 2. This utility model, by setting a dedicated locking mechanism (such as an elastic positioning locking mechanism or a hydraulic clamping locking mechanism) on the first and second crossbars of the frame, can automatically or hydraulically lock the tillage unit firmly onto the frame after the row spacing is adjusted to the correct position. This design effectively prevents the tillage unit from being accidentally displaced due to vibration or uneven resistance during subsequent operations, ensuring the high stability of the preset row spacing throughout the entire tillage process, thereby solving the core problem of unreliable locking in existing equipment affecting the consistency of strip tillage operations.

[0030] 3. This utility model adopts an overall architecture with hydraulics as the unified power source. The multi-way hydraulic valve group centrally supplies oil to each first hydraulic motor and the adjustment and locking actuators, and coordinates and manages them in conjunction with the electronic control system. This modular and integrated design makes the power transmission chain short and the layout simplified, which not only improves the transmission reliability and maintenance convenience, but also lays the foundation for the intelligent control and functional expansion of the whole machine, and improves the working quality of the strip tiller. Attached Figure Description

[0031] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0032] Figure 2 The diagram shown is a three-dimensional structural schematic of the multi-way hydraulic valve assembly of this utility model.

[0033] Figure 3 The diagram shown is a three-dimensional structural schematic of the sliding adjustment mechanism of this utility model.

[0034] Figure 4 The diagram shown is a three-dimensional structural schematic of the tillage unit of this utility model.

[0035] Figure 5 The diagram shown is a three-dimensional structural schematic of the first embodiment of the locking mechanism of this utility model;

[0036] Figure 6 The diagram shown is a three-dimensional structural schematic of a second embodiment of the locking mechanism of this utility model.

[0037] Reference numerals: 1. Frame; 2. First crossbar; 3. Second crossbar; 4. Tillage unit; 5. Fixing frame; 7. Multi-way hydraulic valve group; 8. Row spacing adjustment cylinder; 9. Main controller; 10. Displacement sensor; 23. Soil covering disc; 41. Adjusting frame; 42. First hydraulic motor; 43. Rotary tillage roller; 51. Second hydraulic motor; 81. Vertical block; 82. U-shaped plate; 83. First spring; 84. Extrusion ball; 85. Limiting cylinder; 86. Crossbar; 87. Positioning hole; 88. Sliding frame; 89. Second spring; 810. Fixing cylinder; 811. Fixing block; 812. Locking cylinder; 813. Short column; 101. Slide groove; 102. Sliding block. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] To address the problems of cumbersome and laborious row spacing adjustment operations, low adjustment accuracy, and easy displacement of tillage units and poor row spacing stability during operation in existing technologies, the following technical solution is proposed. Please refer to [link / reference]. Figures 1-6 ;

[0040] A modular hydraulically driven strip tiller includes a frame 1 that is suspended from a tractor and several tillage units 4 mounted on the frame 1. Each tillage unit 4 includes an adjustment frame 41, a first hydraulic motor 42 mounted on the adjustment frame 41, and a rotary tiller roller 43 directly driven by the first hydraulic motor 42.

[0041] Each tillage unit 4 is slidably connected to the frame 1 via a sliding adjustment mechanism;

[0042] The strip tiller is also equipped with a hydraulic drive system, which includes a multi-way hydraulic valve group 7 that supplies oil to all the first hydraulic motors 42, and a row spacing adjustment cylinder 8 that drives each tillage unit 4 to move synchronously in opposite directions along the frame 1 to adjust the row spacing.

[0043] A first crossbar 2 and a second crossbar 3 are fixedly connected through the frame 1. The first crossbar 2, the second crossbar 3 and the sliding adjustment mechanism are all equipped with a locking mechanism for locking the tillage unit 4 to the frame 1 after the row spacing is adjusted to the correct position.

[0044] A control mechanism is also installed on rack 1.

[0045] In this embodiment, specifically, the sliding adjustment mechanism includes a slide groove 101 opened on the frame 1 and a slider 102 disposed on the inner wall of the adjustment frame 41 and cooperating with the slide groove 101. The cylinder body of the row spacing adjustment cylinder 8 is hinged to the frame 1, and its piston rod is hinged to the upper end of the adjustment frame 41 of the tillage unit 4.

[0046] In this embodiment, specifically, the multi-way hydraulic valve group 7 is integrated on the frame 1, and its oil inlet and return port are connected to the hydraulic output system of the tractor through quick connectors. Each of its working oil ports is connected to each first hydraulic motor 42 and the line spacing adjustment cylinder 8 through hydraulic hoses.

[0047] In this embodiment, specifically, a soil covering mechanism is also installed on the adjusting frame 41. The soil covering mechanism includes a fixed frame 5 fixedly installed on the adjusting frame 41, a soil covering disc 23 rotatably installed on the fixed frame 5, and a second hydraulic motor 51 set on the fixed frame 5. The second hydraulic motor 51 is used to drive the soil covering disc 23 to rotate.

[0048] Example 1: In this example, the locking mechanism is specifically an elastic positioning locking mechanism, including: a horizontal frame 86 fixedly installed on the side wall of the adjusting frame 41, with multiple positioning holes 87 extending through both the upper and lower ends of the horizontal frame 86 along its length; and a vertical block 81 fixedly connected to the first horizontal bar 2 and / or the second horizontal bar 3, with a U-shaped plate 82 on the vertical block 81, and the horizontal frame 86 slidably installed in the inner cavity of the U-shaped plate 82; at least one elastic positioning unit is provided on both the upper and lower inner walls of the U-shaped plate 82, and the elastic positioning unit includes a limiting cylinder 85, a first spring 83 placed in the limiting cylinder 85, and a compression ball 84 pushed by the first spring 83, the compression ball 84 being adapted to the positioning hole 87; when the tillage unit 4 moves to the target position, at least one pair of corresponding compression balls 84 are engaged in the corresponding positioning hole 87 under the action of the first spring 83.

[0049] Example 2: In this example, the locking mechanism is specifically a hydraulic clamping locking mechanism, including: a sliding frame 88 fixedly sleeved on the first crossbar 2 and the second crossbar 3, the sliding frame 88 being fixedly connected to the adjusting frame 41; a short column 813 fixedly installed on one side of the sliding frame 88; a fixed cylinder 810 slidably sleeved on the short column 813, the fixed cylinder 810 being coaxially arranged with the short column 813; a second spring 89 sleeved on the short column 813 and located between the sliding frame 88 and the fixed cylinder 810; a fixed block 811 fixed on the frame 1; and a locking cylinder 812 installed on the fixed block 811, the piston rod end of the locking cylinder 812 being connected to the fixed cylinder 810; when locking is required, the locking cylinder 812 is activated, pulling the fixed cylinder 810 to compress the second spring 89, so that friction is generated between the sliding frame 88 and the first crossbar 2 and the second crossbar 3 to achieve locking.

[0050] In this embodiment, specifically, there is a gap between the outer peripheral wall of the short column 813 and the inner ring of the second spring 89.

[0051] In this embodiment, specifically, the control mechanism is the main controller 9, which is electrically connected to the electromagnetic directional valve in the hydraulic drive system and is used to control the movement of the line spacing adjustment cylinder 8.

[0052] In this embodiment, specifically, a displacement sensor 10 for detecting the displacement of the piston rod of the row spacing adjustment cylinder 8 is also included, and the signal output terminal of the displacement sensor 10 is connected to the main controller 9.

[0053] Working principle: During operation, the operator first connects the frame 1 to the tractor via the suspension device, and connects the oil inlet and return port of the multi-way hydraulic valve group 7 integrated on the frame 1 to the hydraulic output system of the tractor via quick couplings.

[0054] Next, the target row spacing is set or selected by the main controller 9. The main controller 9 controls the corresponding electromagnetic directional valve in the hydraulic drive system to operate according to the instruction, so that the piston rod of the row spacing adjustment cylinder 8 is extended or retracted by the pressure oil.

[0055] The row spacing adjustment cylinder 8 drives the tillage unit 4 through its hinge point with the upper end of the adjustment frame 41, so that the slider 102 on the inner wall of the adjustment frame 41 slides synchronously and smoothly in opposite directions or in opposite directions along the slide groove 101 on the frame 1. The displacement sensor 10 detects the displacement of the piston rod of the row spacing adjustment cylinder 8 in real time and feeds it back to the main controller 9 to realize closed-loop control to ensure adjustment accuracy.

[0056] When the tillage unit 4 moves to the target position, if the elastic positioning and locking mechanism is used, the cross frame 86 fixed to the side wall of the adjustment frame 41 will also move synchronously until a certain positioning hole 87 on it is aligned with the elastic positioning unit in the vertical block 81 fixed to the first cross bar 2 and / or the second cross bar 3. At this time, under the push of the first spring 83 in the limiting cylinder 85, the squeezing ball 84 will automatically be inserted into the corresponding positioning hole 87, thereby realizing the rapid locking of the tillage unit 4.

[0057] If a hydraulic clamping and locking mechanism is used, the main controller 9 controls the locking cylinder 812 to move, pulling the fixed cylinder 810 to slide along the short column 813 and compress the second spring 89 (the gap between the outer peripheral wall of the short column 813 and the inner ring of the second spring 89 ensures smooth spring movement), thereby forcing the sliding frame 88, which is fixed to the adjusting frame 41, to tightly hug the first crossbar 2 and the second crossbar 3, and firmly locking the tillage unit 4 through the huge friction force generated.

[0058] After the row spacing is adjusted and locked, the tractor's power output drives the hydraulic system, and the pressurized oil is distributed to each first hydraulic motor 42 through the multi-way hydraulic valve group 7, driving each rotary tiller roller 43 to rotate for strip tillage.

[0059] Meanwhile, if a soil covering mechanism is configured, the pressure oil can also drive the second hydraulic motor 51 to rotate the soil covering disc 23 and perform synchronous soil covering operation on the tilled strips. After the operation is completed, the locking mechanism is released by the main controller 9 and the row spacing adjustment cylinder 8 is reset. Finally, the quick connector is disconnected to separate the strip tiller from the tractor.

[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0061] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A modular hydraulically driven strip tiller, comprising a frame (1) connected to a tractor suspension and a plurality of tillage units (4) mounted on the frame (1), characterized in that: The tillage unit (4) includes an adjustment frame (41), a first hydraulic motor (42) mounted on the adjustment frame (41), and a rotary tiller roller (43) directly driven by the first hydraulic motor (42). Each tillage unit (4) is slidably connected to the frame (1) via a sliding adjustment mechanism; The strip tiller is also equipped with a hydraulic drive system, which includes a multi-way hydraulic valve group (7) that supplies oil to all the first hydraulic motors (42), and a row spacing adjustment cylinder (8) that drives each tillage unit (4) to move synchronously in opposite directions along the frame (1) to adjust the row spacing. A first crossbar (2) and a second crossbar (3) are fixedly connected through the frame (1). The first crossbar (2), the second crossbar (3) and the sliding adjustment mechanism are all equipped with a locking mechanism for locking the tillage unit (4) to the frame (1) after the row spacing is adjusted to the correct position. A control mechanism is also installed on the frame (1).

2. The modular hydraulically driven strip tiller according to claim 1, characterized in that: The sliding adjustment mechanism includes a slide groove (101) opened on the frame (1) and a slider (102) set on the inner wall of the adjustment frame (41) and cooperating with the slide groove (101). The cylinder body of the row spacing adjustment cylinder (8) is hinged to the frame (1), and its piston rod is hinged to the upper end of the adjustment frame (41) of the tillage unit (4).

3. The modular hydraulically driven strip tiller according to claim 2, characterized in that: The multi-way hydraulic valve group (7) is integrated on the frame (1). Its oil inlet and return port are connected to the hydraulic output system of the tractor through quick connectors. Each of its working oil ports is connected to each first hydraulic motor (42) and the row spacing adjustment cylinder (8) through hydraulic hoses.

4. The modular hydraulically driven strip tiller according to claim 3, characterized in that: The adjusting frame (41) is also equipped with a soil covering mechanism, which includes a fixed frame (5) fixedly installed on the adjusting frame (41), a soil covering disc (23) rotatably installed on the fixed frame (5), and a second hydraulic motor (51) set on the fixed frame (5). The second hydraulic motor (51) is used to drive the soil covering disc (23) to rotate.

5. The modular hydraulically driven strip tiller according to claim 3, characterized in that: The locking mechanism is an elastic positioning locking mechanism, including: a crossbar (86) fixedly installed on the side wall of the adjusting frame (41), with multiple positioning holes (87) through the upper and lower ends of the crossbar (86) along its length direction; and a vertical block (81) fixedly connected to the first crossbar (2) and / or the second crossbar (3), with a U-shaped plate (82) on the vertical block (81), and the crossbar (86) slidably installed in the inner cavity of the U-shaped plate (82); at least one elastic positioning unit is provided on the upper and lower inner walls of the U-shaped plate (82), the elastic positioning unit including a limiting cylinder (85), a first spring (83) placed in the limiting cylinder (85), and a squeezing ball (84) pushed by the first spring (83), the squeezing ball (84) being adapted to the positioning hole (87); when the tillage unit (4) moves to the target position, at least one pair of upper and lower corresponding squeezing balls (84) are inserted into the corresponding positioning hole (87) under the action of the first spring (83).

6. The modular hydraulically driven strip tiller according to claim 3, characterized in that: The locking mechanism is a hydraulic clamping locking mechanism, including: a sliding frame (88) fixedly sleeved on the first crossbar (2) and the second crossbar (3), the sliding frame (88) being fixedly connected to the adjusting frame (41); a short column (813) fixedly installed on one side of the sliding frame (88); a fixed cylinder (810) slidably sleeved on the short column (813), the fixed cylinder (810) being coaxially arranged with the short column (813); and a clamping mechanism sleeved on the short column (813) and located between the sliding frame (88) and the fixed cylinder (813). The second spring (89) between the slide frame (0) and the first crossbar (2) and the second crossbar (3); the fixing block (811) fixed on the frame (1); and the locking cylinder (812) installed on the fixing block (811), the piston rod end of the locking cylinder (812) being connected to the fixing cylinder (810); when locking is required, the locking cylinder (812) is activated, pulling the fixing cylinder (810) to compress the second spring (89), so that friction is generated between the slide frame (88) and the first crossbar (2) and the second crossbar (3) to achieve locking.

7. The modular hydraulically driven strip tiller according to claim 6, characterized in that: There is a gap between the outer peripheral wall of the short column (813) and the inner ring of the second spring (89).

8. The modular hydraulically driven strip tiller according to claim 1, characterized in that: The control mechanism is the main controller (9), which is electrically connected to the electromagnetic directional valve in the hydraulic drive system and is used to control the movement of the line spacing adjustment cylinder (8).

9. The modular hydraulically driven strip tiller according to claim 8, characterized in that: It also includes a displacement sensor (10) for detecting the displacement of the piston rod of the row spacing adjustment cylinder (8), and the signal output terminal of the displacement sensor (10) is connected to the main controller (9).

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