Rice transplanter and profiling feedback device and profiling method thereof

Abstract

The application discloses a rice transplanter and a profiling feedback device and a profiling method thereof, and belongs to the field of rice transplanters. The profiling feedback device of the rice transplanter comprises a guide piece, a pull wire, a pull sleeve and a limiting piece. The guide piece is rotationally connected to a floating boat and can move along with the floating boat. One end of the pull wire is connected to a rack of the rice transplanter, and the other end is fixedly connected to a tension sensor. The limiting piece is fixed to the rack, and the pull sleeve is located between the limiting piece and the guide piece. The pull wire is arranged in the pull sleeve and can move relative to the pull sleeve. When the guide piece moves, the guide piece can be pressed against the limiting piece to extrude the pull sleeve, cause the pull sleeve to deform, and then pull the pull wire, so that the pull wire transmits force to the tension sensor, and the planting part is controlled to move up and down. Compared with mechanical transmission in the related art, the structure is simplified, the volume is small, and maintenance is simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the rice transplanter technical field, more particularly, to a rice transplanter and a profiling feedback device and method thereof. BACKGROUND

[0002] During the process of rice transplanting, when the planting part encounters a soil slope or a pit, the rice transplanter will perform the rice transplanting along the ground curve (profiling) to ensure the consistency of the rice transplanting depth, thereby ensuring the survival rate and yield of the seedlings.

[0003] For example, the Chinese patent document (publication number: CN 202663777 U) provides a depth adjustment system of a rice transplanter. When the front end of the central floating boat encounters a raised soil, the front end will be tilted upward under the action of the raised soil. In the process of tilting the front end, the steel tensioning mechanism is driven to move, thereby driving the control valve of the oil circuit of the lifting cylinder through the connecting rod set, so that the rice transplanter frame is lifted under the action of the lifting cylinder, and the lifting amplitude is determined by the tilting amplitude of the central floating boat.

[0004] The profiling device of this structure directly drives the planting part to lift through mechanical transmission, which has a complex structure and a large volume. However, the user needs to perform multiple steps during use, which is complicated.

[0005] For the above problems, the related technology does not provide an effective solution. SUMMARY

[0006] To solve the possible problems in the related technology, the present application provides a profiling feedback device of a rice transplanter, which comprises: a floating boat for profiling along the ground; a tension sensor connected to a controller for driving the planting part to lift; a feedback assembly comprising a guide piece, a tension wire, a tension sleeve, and a limiting piece; the guide piece is rotationally connected to the floating boat and can move with the floating boat; one end of the tension wire is connected to the frame of the rice transplanter, and the other end is fixedly connected to the tension sensor; the limiting piece is fixed to the frame, and the tension sleeve is located between the limiting piece and the guide piece; wherein the tension wire is arranged in the tension sleeve and can move relative to the tension sleeve; the guide piece can press the tension sleeve when moving to cause the tension sleeve to deform and pull the tension wire, so that the tension wire transmits the force to the tension sensor.

[0007] Further, the tension wire is connected to the frame through a fixing piece; the fixing piece comprises a pulling rod, the guide piece has a waist-shaped guide hole, and the pulling rod penetrates the guide hole to limit the movement path of the guide piece.

[0008] Further, the guide member has two opposite installation plates, each of which is formed with two opposite guide holes through which the restraint rods pass; the pull wire is connected to the restraint rods and located between the two installation plates; the hinge point of the guide member and the floating boat is also located between the two installation plates.

[0009] Further, the pull wire is movably connected to the restraint rods through a buffer member, and the buffer member has a waist-shaped buffer hole through which the restraint rods pass, and the length direction of the buffer hole is consistent with the length direction of the guide hole.

[0010] Further, the pull sleeve is fixed to the guide member and the limiting member at two ends thereof through double-nut locking structures.

[0011] Further, the end of the pull sleeve is provided with an envelope which at least encloses part of the port of the pull sleeve.

[0012] Further, the limiting member is an L-shaped plate, and the pull wire passes through the limiting member and can move relative to the limiting member.

[0013] Further, the middle part of the pull sleeve is provided with an adjusting sleeve which is divided into two segments with internal threads, the threads of the two segments are opposite, and the pull sleeve is also divided into two segments and is threadedly connected to different segments of the adjusting sleeve.

[0014] To achieve the above object, the application further provides a rice transplanter, comprising a rack, a planting part and the rice transplanter profiling feedback device in any of the above-mentioned schemes.

[0015] To achieve the above object, the application further provides a rice transplanter profiling method applied to the rice transplanter in the above-mentioned scheme, which comprises the following steps: step one, the floating boat profiles along the ground, and is lifted when encountering a soil slope; step two, the guide member moves upward along the guide hole following the floating boat, and is pressed by the limiting member to make the pull sleeve bend; step three, the pull sleeve bends to drive the pull wire to bend, and the pull wire pulls the tension spring of the tension sensor; step four, after the tension sensor detects the tension, the signal is fed back to the controller, the controller controls the opening degree of the electromagnetic valve, so that the hydraulic cylinder is shortened to make the planting part rise.

[0016] Compared with the prior art, the technical scheme provided by the application has the following beneficial effects:

[0017] By arranging the feedback assembly between the floating boat and the tension sensor, the tension sensor is away from the ground and the floating boat, so that the service life thereof is guaranteed, and by cooperation of the pull wire and the pull sleeve, the upward force of the floating boat is converted into the tension acting on the tension spring, so that the controller controls the planting part to rise and fall, compared with the mechanical transmission in the related art, the structure is simplified, the volume is smaller, and the maintenance is simple. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of this application, are intended to provide further understanding of the application and are incorporated herein in their entirety. The figures of the illustrative embodiments of the present application, and their

[0019] Figure 1 Fig. 1 is a schematic diagram of a rice transplanter profiling feedback device according to an embodiment of the present application;

[0020] Figure 2 Fig. 2 is a partial schematic diagram of a floating boat and feedback assembly cooperation structure according to an embodiment of the present application;

[0021] Figure 3 Fig. 3 is a partial schematic diagram of a feedback assembly structure according to an embodiment of the present application;

[0022] Figure 4 Fig. 4 is a partial schematic diagram of a tension sensor and feedback assembly cooperation structure according to an embodiment of the present application;

[0023] Figure 5 Fig. 5 is a schematic diagram of a pull sleeve and pull wire cooperation structure according to an embodiment of the present application;

[0024] Figure 6 Fig. 6 is a sectional view of a pull sleeve and pull wire cooperation structure according to an embodiment of the present application;

[0025] BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 100, floating boat;

[0027] 200, tension sensor; 210, tension spring;

[0028] 300, feedback assembly;

[0029] 310, guide; 311, guide hole; 312, mounting plate;

[0030] 320, pull wire;

[0031] 330, pull sleeve; 331, adjusting member; 332, adjusting sleeve; 333, sealing sleeve;

[0032] 340, limiting member;

[0033] 350, fixing member; 351, restraining rod;

[0034] 360, buffer; 361, buffer hole. DETAILED DESCRIPTION

[0035] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application, so that those skilled in the art can better understand the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0036] It should be noted that the terms "first", "second", and the like in the description, claims, and above drawings of the present application are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein.

[0037] In the present application, the terms "up", "down", "left", "right", "front", "back", "top", "bottom", "in", "out", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "up" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0038] The present embodiment provides a rice transplanter profiling feedback device, as shown in Figure 1 , comprising a float 100, a tension sensor 200 and a feedback assembly 300.

[0039] The float 100 is used for profiling along the ground. When the rice transplanter is running, the float 100 is attached to the ground and moves along the ups and downs of the ground. The tension sensor 200 is connected with a controller for driving the insertion part to lift. Specifically, the controller is connected with a solenoid valve, and when the controller receives the signal feedback of the tension sensor 200, the opening of the solenoid valve is changed, and the solenoid valve controls the extension and retraction of the hydraulic cylinder, thereby driving the insertion part to lift.

[0040] As shown in Figure 2 , 3As shown in FIG. 4, the feedback assembly 300 comprises a guide 310, a pull wire 320, a pull sleeve 330 and a limiting piece 340. The guide 310 is rotationally connected to the float 100 and can move with the float 100. One end of the pull wire 320 is connected to the frame of the transplanter, and the other end is fixedly connected to the tension sensor 200. The limiting piece 340 is fixed to the frame, and the pull sleeve 330 is located between the limiting piece 340 and the guide 310. The pull wire 320 is arranged in the pull sleeve 330 and can move relative to the pull sleeve 330. When the guide 310 moves, it can press the pull sleeve 330 together with the limiting piece 340, causing the pull sleeve 330 to deform and thereby pull the pull wire 320, so that the pull wire 320 transmits the force to the tension sensor 200.

[0041] Specifically, as shown in FIG. 4, the float 100 is hinged to the guide 310, the pull wire 320 is connected to the tension sensor 200 through the tension spring 210, the feedback assembly 300 transmits the force of the float 100 in the plumb direction to the tension sensor 200, thereby controlling the lifting of the planting part. When the float 100 passes through the soil slope, the float moves upward, pushing the limiting piece 340 to press the pull sleeve 330 together with the guide 310, causing the pull sleeve 330 to bend and deform, thereby causing the pull wire 320 to pull the tension spring 210 of the tension sensor 200, and the tension sensor 200 makes a signal feedback. Figure 2 As a comparative example, if the tension sensor 200 is placed on the side of the float 100 close to the ground, the tension spring 210 of the tension sensor 200 is located between the float 100 and the tension sensor 200. When the float 100 moves upward, it can directly pull the tension spring 210 and transmit the force to the tension sensor 200. However, this way makes the tension sensor 200 too close to the ground, and the soil dust greatly reduces the service life of the tension sensor 200.

[0042] Therefore, by arranging the feedback assembly 300 between the float 100 and the tension sensor 200, the tension sensor 200 is away from the ground and the float 100, ensuring its service life. At the same time, by using the cooperation of the pull wire 320 and the pull sleeve 330, the upward force of the float 100 is converted into the tension acting on the tension spring 210, so that the controller controls the lifting of the planting part. The pull sleeve and the pull wire both have high bending deformation ability, which can efficiently transmit the force and fully adapt to the internal space of the transplanter. Compared with the mechanical transmission in the related art, the structure is simplified, the volume is smaller, and the maintenance is simple. Further, the end of the pull sleeve 330 is provided with an envelope 333, which at least encloses part of the port of the pull sleeve 330. The envelope 333 prevents dust and other interfering substances from entering the envelope 333 and interfering with the movement of the pull wire 320.

[0043]

[0044] ​Specifically, the pull wire 320 is connected to the frame through a fixing member 350. The fixing member 350 includes a restraining rod 351, and the guide member 310 has a waist-shaped guide hole 311 into which the restraining rod 351 penetrates, so as to limit the movement path of the guide member 310, prevent the guide member 310 from swinging and shaking when the floating boat 100 drives the guide member 310 to move, and ensure that the force is fully transmitted to the pull sleeve 330, or even cause the pull sleeve 330 to interfere with the work of other parts of the rice transplanter.

[0045] More specifically, as shown in Figure 2 、 3 , the guide member 310 has two opposite mounting plates 312, each of which forms two opposite guide holes 311 into which the restraining rod penetrates, and the pull wire 320 is connected to the restraining rod and located between the two mounting plates 312. The hinge point of the guide member 310 and the floating boat 100 is also between the two mounting plates 312. At this time, the stress points of the guide member, the pull wire 320 and the pull sleeve 330 are located on the same straight line, and the mounting plates 312 effectively support them, the force transmission is efficient, and the accuracy of the work of the feedback assembly 300 and the floating boat 100 is further increased.

[0046] Further, the pull sleeve 330 is fixed to the guide member 310 and the limiting member 340 at both ends, for example, by using a double nut locking structure. Even if the limiting member and the guide member need to be arranged in a staggered manner due to internal assembly of the rice transplanter, the extrusion force of the two can still be stably applied to the pull sleeve.

[0047] According to some planting requirements, when the rice transplanter encounters a small soil slope, or in some special regions, if the pull wire 320 is directly fixed to the frame, the pull sleeve 330 will immediately pull the pull spring 210 to feed back the tension to the tension sensor 200 when the floating boat 100 is lifted to cause the pull sleeve 330 to bend and deform, and the planting part will adjust the repeated planting depth, which will cause the work efficiency of the rice transplanter to be low, consume a large amount of electric energy and mechanical energy, and cause the device to be damaged due to fatigue.

[0048] In order to solve the above problems, as shown in Figure 2 、 3As shown in Figure 5, the pull wire 320 is movably connected to the restraining rod 351 via a buffer member 360. The buffer member 360 has a waist-shaped buffer hole 361, into which the restraining rod 351 passes. The length direction of the buffer hole 361 is consistent with the length direction of the guide hole 311. The buffer member 360 is detachable and replaceable to adjust the length of the waist-shaped buffer hole 361. Users can select a suitable buffer member 360 to adapt to different rice planting needs. When the floating boat 100 encounters a small slope, it lifts upward, the pull sleeve 330 deforms, and the pull wire 320 first moves in the buffer hole 361 until it pulls the buffer member 360 and engages with the restraining rod 351. Then, the pull wire 320 applies the tension applied by the pull sleeve 330 to the tension spring 210, transmitting the tension to the tension sensor 200, causing the planting part to rise.

[0049] As an extension, one end of the pull sleeve 330 is fixed to the guide, and the other end is spaced a certain distance from the limiting member 340. When the float 100 moves upward, the guide pushes the pull sleeve 330 against the limiting member 340. Only then do the limiting member 340 and the guide begin to compress the pull sleeve 330, causing it to bend and deform. The pull wire 320 then feeds the force back to the tension sensor 200. This solution can be used in conjunction with the buffer 360. Even under different working conditions, terrains, and crops, the feedback component 300 can be adjusted instantly and conveniently. The planting height of the planting section is changed only when the float 100 is raised to the predetermined height, adapting to various work needs and ensuring work efficiency.

[0050] As an alternative, to accommodate various assembly spaces, such as Figure 5 As shown, the pull sleeve 330 has an adjusting element 331 in the middle for quickly adjusting the length of the pull sleeve 330. Specifically, the adjusting element 331 includes an adjusting sleeve 332, which is divided into two sections with internal threads of opposite directions. The pull sleeve 330 is also divided into two sections, which are threaded into different sections of the adjusting sleeve 332. The user can rotate the adjusting sleeve 332 to simultaneously screw the two ends of the pull sleeve 330 into or out of the adjusting sleeve 332 to achieve the desired length. Then, the two sections of the pull sleeve 330 are locked relative to the adjusting sleeve 332 with nuts to change the overall length of the pull sleeve 330.

[0051] Furthermore, such as Figure 4 As shown, the limiting member 340 is an L-shaped plate. The pull wire 320 passes through the limiting member 340 and can move relative to the limiting member 340, guiding the pull wire 320 to act stably on the tension spring 210 and preventing the pull wire 320 from being driven by the pull sleeve 330 to cause unnecessary displacement.

[0052] As another embodiment of this application, a rice transplanter is provided, including the rice transplanter contour feedback device, frame, and planting section described in the above embodiments. This rice transplanter employs a rice transplant contour method, as detailed below:

[0053] Step one: the floating boat 100 follows the ground surface, and when it encounters a soil slope, the floating boat 100 is lifted.

[0054] Step two: the guide 310 follows the floating boat 100 along the guide hole 311 and moves upward, and cooperates with the limiting piece 340 to extrude the pull sleeve 330, so that the pull sleeve 330 is bent and deformed.

[0055] Step three: the pull sleeve 330 is deformed, which drives the pull wire 320 to bend, and the pull wire 320 pulls the tension spring 210 of the tension sensor 200.

[0056] Step four: after the tension sensor 200 detects the tension, it feeds back the signal to the controller, the controller controls the opening degree of the electromagnetic valve, so that the hydraulic cylinder is shortened, and the insertion part is raised.

[0057] When the floating boat 100 descends, the tension acting on the tension spring 210 is removed, and the tension sensor 200 feeds back the signal to the controller, the hydraulic cylinder is shortened, and the insertion part is lowered.

[0058] In the present application, the terms "mounting", "setting", "provided with", "connecting", "connected", "sleeved" should be understood broadly. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0059] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A rice transplanter contour feedback device, characterized in that, The utility model relates to a kind of rice transplanter profiling feedback devices, including: Floating boat, for profiling along ground; Tension sensor, connected with controller, for driving insertion part lifting; Feedback assembly, including guide, pull line, pull sleeve and limiting piece;The guide is rotatably connected to floating boat, can follow floating boat movement;The pull line one end is connected to the frame of rice transplanter, one end is fixedly connected to tension sensor;The limiting piece is fixed to frame, and the pull sleeve is located between limiting piece and guide; Wherein, pull line is arranged in pull sleeve and can make relative motion with pull sleeve, the guide can be extruded pull sleeve when moving, cause the deformation of pull sleeve to thereby pull pull line, make pull line transmit force to tension sensor.

2. The rice transplanter profiling feedback device according to claim 1, wherein: The pull line is connected to the frame through a fixing member; the fixing member includes a restraining rod, the guide has a waist-shaped guide hole, and the restraining rod penetrates the guide hole to limit the movement path of the guide.

3. The rice transplanter profiling feedback device according to claim 2, wherein: The guide has two opposite mounting plates, each of which forms two opposite guide holes, and the restraining rod penetrates the guide holes; the pull line is connected to the restraining rod and located between the two mounting plates; the hinge point of the guide and the floating boat is also between the two mounting plates.

4. The rice transplanter profiling feedback device according to claim 2 or 3, wherein: The pull line is movably connected to the restraining rod through a buffer member, the buffer member has a waist-shaped buffer hole, the restraining rod penetrates the buffer hole, and the length direction of the buffer hole is consistent with the length direction of the guide hole.

5. The rice transplanter profiling feedback device according to claim 1, wherein: The pull sleeve is fixed to the guide and the limiting piece at both ends through double-nut locking structures.

6. The rice transplanter profiling feedback device according to claim 1, wherein: The pull sleeve is provided with an end cover at the end portion, and the end cover at least covers part of the port of the pull sleeve.

7. The rice transplanter profiling feedback device according to claim 1, wherein: The limiting piece is an L-shaped plate, and the pull line penetrates the limiting piece and can move relative to the limiting piece.

8. The rice transplanter profiling feedback device according to claim 1, wherein: The pull sleeve is provided with an adjusting sleeve at the middle portion, the adjusting sleeve is divided into two segments with internal threads, the threads of the two segments are opposite, and the pull sleeve is also divided into two segments and is threadedly connected to different segments of the adjusting sleeve.

9. A rice transplanter, comprising a frame, an insertion part, and any one of the rice transplanter profiling feedback devices according to claims 1 to 8.

10. A rice transplanter profiling method applied to the rice transplanter according to claim 9, comprising the following steps: Step 1: the floating boat profiles along the ground surface, and is lifted when encountering a soil slope; Step 2: the guide moves upward along the guide hole to follow the floating boat, and extrudes the pull sleeve together with the limiting piece to cause the pull sleeve to bend and deform; Step 3: the pull sleeve deforms to drive the pull line to bend, and the pull line pulls the tension spring of the tension sensor. ​ Step four: after the tension sensor detects the tension, the signal is fed back to the controller, the controller controls the electromagnetic valve opening, so that the hydraulic cylinder is shortened, and the implanting part is raised.

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