Transplanter profiling device and transplanter with same

Abstract

The utility model provides a transplanter profiling device which comprises a rack, a ridge surface profiling mechanism and a planting depth control system, the ridge surface profiling mechanism comprises a fixed cross beam, a brake cable, a profiling swing arm and a profiling wheel, and the fixed cross beam is installed on the rack; the brake cable comprises an outer layer and a core wire, the outer layer is connected with the fixed cross beam, and one end of the core wire is movably connected with the profiling swing arm through a connecting rod; the profiling swing arm is movably connected with the fixed cross beam; the profiling wheel is movably connected with the profiling swing arm; the planting depth control system comprises a hydraulic source, a hydraulic oil cylinder, a hydraulic reversing valve, a four-bar mechanism and a planting device, wherein the hydraulic source and the hydraulic reversing valve are arranged on the rack; a base of the hydraulic oil cylinder is movably connected with the rack; the hydraulic reversing valve is connected with the hydraulic source, the hydraulic oil cylinder and the other end of the core wire; and the four-bar mechanism is connected with the rack, the piston end of the hydraulic oil cylinder and the planting device. The planting depth is controlled by changing the working position of the hydraulic reversing valve through the brake cable, and the mechanical structure is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of transplanters, in particular to a transplanter profiling device and a transplanter equipped with the device. Background Art

[0002] Vegetable seedling transplanting offers numerous advantages, including improving seed emergence and field survival rates, resolving crop rotation issues during planting, and improving arable land utilization. It is a growing planting method in modern agriculture. Planting depth is a key indicator for ensuring the survival rate of potted seedlings. While achieving the same contour-based depth control objective, most existing transplanters utilize complex contour-based depth control technology, resulting in significant contour resistance. Furthermore, adjusting the sensitivity of the ridge surface to detect softness or hardness is difficult, making it less practical. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a transplanter profiling device and a transplanter equipped with the same, which realizes planting depth control by changing the working position of the hydraulic reversing valve through a gate line, and has a simple structure.

[0004] To achieve the above-mentioned objectives, the utility model provides, on the one hand, a transplanter profiling device, comprising a frame and a ridge surface profiling mechanism and a planting depth control system installed on the frame, the ridge surface profiling mechanism comprising a fixed beam, a brake wire, a profiling swing arm and a profiling wheel, wherein: the fixed beam is installed on the frame; the brake wire comprises an outer layer and a core wire, the outer layer is connected to the fixed beam, and one end of the core wire is movably connected to the profiling swing arm through a connecting rod; the profiling swing arm is movably connected to the fixed beam; the profiling wheel is movably connected to the profiling swing arm; the planting depth control system comprises a hydraulic source, a hydraulic cylinder, a hydraulic reversing valve, a four-bar mechanism and a planter, wherein: the hydraulic source and the hydraulic reversing valve are installed on the frame; the base of the hydraulic cylinder is movably connected to the frame; the hydraulic reversing valve is connected to the hydraulic source, the hydraulic cylinder and the other end of the core wire; the four-bar mechanism is connected to the frame, the piston end of the hydraulic cylinder and the planter.

[0005] The ridge surface profiling mechanism also includes a first fixing plate and a second fixing plate, wherein: one end of the first fixing plate is mounted on the frame, and the other end is screwed to the outer layer of the brake wire; the second fixing plate is connected to the core wire of the brake wire and the connecting rod.

[0006] The hydraulic reversing valve is a three-position, three-way reversing valve, wherein: the P port of the hydraulic reversing valve is connected to the oil outlet of the hydraulic source, the T port of the hydraulic reversing valve is connected to the oil return port of the hydraulic source, the A port of the hydraulic reversing valve is connected to the rodless chamber of the hydraulic cylinder, and the left end of the hydraulic reversing valve is drive-connected to the other end of the core wire.

[0007] The four-bar mechanism includes a first frame, a crank and a rocker hinged to the first frame, and a connecting rod hinged to the crank and the rocker, wherein: the first frame is connected to the frame; the hinge point of the crank and the connecting rod is movably connected to the piston end of the hydraulic cylinder; the connecting rod has an extended end point at the hinge point with the rocker, and the extended end point is connected to the planter.

[0008] The planting depth control system further comprises a sensitivity adjustment rod which is mounted on the frame and connected to the outer layer of the brake wire.

[0009] The contoured wheel is connected to the contoured swing arm via a contoured pin rotation pair.

[0010] The fixed crossbeam is movably connected to the frame via bolts.

[0011] The second fixing plate is connected to the contoured swing arm rotation pair through the connecting rod.

[0012] There are multiple planters.

[0013] On the other hand, the utility model provides a transplanter equipped with the above-mentioned transplanter profiling device.

[0014] From the above scheme, it can be seen that the advantages of the present invention are:

[0015] The utility model senses the undulations of the ridge surface through the ridge surface profiling mechanism, changes the working position of the hydraulic reversing valve through the gate line, and then controls the extension and contraction of the hydraulic oil cylinder to achieve the control of the planting depth, simplifies the mechanical structure, reduces the profiling resistance, reduces the manufacturing cost, and improves the practicality of work.

[0016] At the same time, the sensitivity adjustment rod is used to realize the perception sensitivity of the ridge surface profiling mechanism under different hardness and softness conditions of the ridge surface, thereby solving the vibration and bouncing problems of the planting depth control system caused by excessive sensitivity and the poor consistency of the planting depth caused by excessively low sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a structural diagram of the ridge surface profiling mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the planting depth control system of the utility model;

[0020] Wherein, the reference numerals:

[0021] 1- rack;

[0022] 1'-chassis frame;

[0023] 100-ridge surface profiling mechanism;

[0024] 101-load depth control system;

[0025] 2-Fixed beam;

[0026] 3-brake line outer fixing plate;

[0027] 4-brake line;

[0028] 5- Brake wire core wire fixing seat;

[0029] 6- ferry pin;

[0030] 7-Profile swing arm;

[0031] 8-Profiling wheel;

[0032] 9-Profile wheel pin;

[0033] 10-Sensitivity adjustment lever;

[0034] 11- Hydraulic source;

[0035] 12-Hydraulic cylinder;

[0036] 120-piston end;

[0037] 13-Hydraulic reversing valve;

[0038] 14-four-bar mechanism;

[0039] 140-first rack;

[0040] 141-crank;

[0041] 142-joystick;

[0042] 143-connecting rod;

[0043] 1430-Extended endpoint;

[0044] 15-planter;

[0045] 16-connecting rod;

[0046] 200-ridge surface;

[0047] 300-transplanter;

[0048] 400-Mobile device. DETAILED DESCRIPTION

[0049] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the claims attached to the present invention.

[0050] References in the specification to "an embodiment," "another embodiment," "this embodiment," etc., indicate that the described embodiment may include specific features, structures, or characteristics, but not every embodiment must include these specific features, structures, or characteristics. Furthermore, such references do not necessarily refer to the same embodiment. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, whether or not explicitly described, it is understood that incorporating such features, structures, or characteristics into other embodiments is within the knowledge of those skilled in the art.

[0051] Certain words are used in the specification and subsequent claims to refer to specific components or parts. It should be understood by those skilled in the art that technical users or manufacturers may refer to the same component or part with different nouns or terms. This specification and claims do not distinguish components or parts based on differences in name, but rather on differences in the functions of the components or parts. The words "include" and "comprising" mentioned throughout the specification and claims are open-ended terms and should be interpreted as "including but not limited to". In addition, the word "connect" herein includes any direct and indirect electrical connection means. Indirect electrical connection means include connection through other devices.

[0052] It should be noted that, in the description of the present invention, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and "approximately", or "approximately", "substantially", "left and right" and the like to indicate directions or positional relationships or parameters are all based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description content, and do not indicate or imply that the device or element referred to must have a specific direction, specific size or be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0053] like Figures 1 to 3 As shown, it is a structural diagram of a transplanter profiling device provided by an embodiment of the present invention. The transplanter profiling device includes: a frame 1, a ridge surface profiling mechanism 100 and a planting depth control system 101. The ridge surface profiling mechanism 100 and the planting depth control system 101 are installed on the frame 1.

[0054] like Figure 1 As shown, the ridge surface profiling mechanism 100 is installed on the frame 1 by bolt connection and is located directly in front of the planter 15; the planting depth control system 101 is installed on the chassis frame 1' and is connected to the ridge surface profiling mechanism 100 through the brake line 4; the hydraulic cylinder 12 is connected to the planting depth control system 101 through an oil pipeline (not shown).

[0055] like Figure 2 As shown, the ridge surface profiling mechanism 100 includes a fixed beam 2, a brake wire 4, a profiling swing arm 7 and a profiling wheel 8, wherein: the fixed beam 2 is mounted on the frame 1; the brake wire 4 includes an outer layer and a core wire (not shown in the figure), the outer layer of the brake wire 4 is connected to the fixed beam 2, and one end of the core wire of the brake wire 4 is movably connected to the profiling swing arm 7 through a connecting rod 16; the profiling swing arm 7 is movably connected to the fixed beam 2; and the profiling wheel 8 is movably connected to the profiling swing arm 7.

[0056] like Figure 3 As shown, the planting depth control system 101 includes a hydraulic source 11, a hydraulic cylinder 12, a hydraulic reversing valve 13, a four-bar mechanism 14 and a planter 15, wherein: the hydraulic source 11 and the hydraulic reversing valve 13 are installed on the frame 1; the base of the hydraulic cylinder 12 is movably connected to the frame 1 (for example, a rotating pair connection); the hydraulic reversing valve 13 is connected to the hydraulic source 11, the hydraulic cylinder 12 and the other end of the gate line 4 core wire; the four-bar mechanism 14 is connected to the frame 1, the piston end of the hydraulic cylinder 12 and the planter 15.

[0057] Specifically, the fixed beam 2 is connected to the frame 1 by bolts, and the relative height of the ridge surface profiling mechanism 100 and the frame 1 can be adjusted as a whole by changing the position of the connecting bolt hole; the outer layer fixing plate 3 of the gate wire (i.e., the first fixed plate) is welded and fixed to the fixed beam 2, and at the same time, the outer layer of the gate wire 4 is fixed by a threaded connection, and the initial elongation of the core wire of the gate wire 4 can be adjusted by adjusting the nut; the core wire of the gate wire 4 is fixed to the gate wire core wire fixing seat 5 (i.e., the second fixed plate); the gate wire core wire fixing seat 5 and the profiling swing arm 7 are connected by a connecting rod 16 rotating pair; the profiling swing arm 7 and the fixed beam 2 are connected by a swing arm pin 6 rotating pair; the profiling wheel 8 and the profiling swing arm 7 are connected by a profiling wheel pin 9 rotating pair.

[0058] The planting depth control system 100 includes a hydraulic source 11, a hydraulic reversing valve 13, a hydraulic cylinder 12, a parallelogram linkage 14, and a planter 15. The hydraulic source 11 and hydraulic reversing valve 13 are fixed to the frame 1; the sensitivity adjustment rod 10 is connected to the revolving joint of the frame 1; the outer layer of the brake wire 4 is fixed to the sensitivity adjustment rod 10, and the core wire of the brake wire 4 is fixed to the left end of the hydraulic reversing valve 13.

[0059] In this embodiment, the hydraulic reversing valve 13 is a three-position three-way reversing valve, the three positions are the left position, the middle position and the right position, and the three ports are the pressure oil port P, the return oil port T and the oil port A leading to the actuator, wherein: the P port of the hydraulic reversing valve 13 is connected to the oil outlet of the hydraulic source 11, the T port of the hydraulic reversing valve 13 is connected to the return oil port of the hydraulic source 11, the A port of the hydraulic reversing valve 13 is connected to the rodless chamber of the hydraulic cylinder 12, and the left end of the hydraulic reversing valve 13 is drive-connected to the other end of the core wire of the gate line 4.

[0060] The four-bar mechanism 14 includes a first frame 140, a crank 141, a rocker 142 and a connecting rod 143, wherein: the first frame 140 is connected to the frame 1, for example, a fixed connection; the crank 141 and the rocker 142 are respectively hinged to the two ends of the first frame 140, and the other ends of the crank 141 and the rocker 142 are respectively hinged to the two ends of the connecting rod 143; the hinge point of the crank 141 and the connecting rod 143 is movably connected to the piston end 120 of the hydraulic cylinder 12 (for example, a rotating pair connection); the connecting rod 143 has an extended end point 1430 at the hinge point with the rocker 142, and the extended end point 1430 is connected to the planter 15.

[0061] In this embodiment, there are two planters 15 , both connected to the extended end point 1430 of the connecting rod 143 , but the number is not limited and can be adjusted according to actual conditions.

[0062] During operation, the contouring wheel 8 rolls on the ridge surface 200, sensing the undulations. When the ridge surface 200 rises, the contouring arm 7 swings upward (away from the ridge surface 200), which in turn pulls one end of the core wire of the gate wire 4. The other end of the core wire pulls the left end of the hydraulic reversing valve 13, driving the hydraulic reversing valve 13 to the left position. The hydraulic source 11 injects hydraulic oil into the rodless chamber of the hydraulic cylinder 12, causing the hydraulic cylinder 12 to extend, driving the connecting rod 143 of the four-bar mechanism 14 upward, driving the planter 15 to increase its relative height with the ridge surface 200 and reducing the planting depth. When the ridge surface 200 becomes lower, the contoured swing arm 7 swings downward, the core wire of the gate wire 4 returns to its original position, and the hydraulic reversing valve 13 is in the right position under the action of the right-end return spring. Under the deadweight of the planter 15 and the four-bar mechanism 14, the hydraulic oil in the rodless chamber of the hydraulic cylinder 12 is injected into the oil tank of the hydraulic source 11. The hydraulic cylinder 12 contracts, driving the connecting rod 143 of the four-bar mechanism 14 downward, causing the relative height of the planter 15 and the ridge surface 200 to decrease, increasing the planting depth. When the planting depth is appropriate, the hydraulic reversing valve 13 is in the middle position under the combined action of the core wire of the gate wire 4 and the right-end return spring of the hydraulic reversing valve 13. The hydraulic cylinder 12 remains stationary, and the relative height of the planter 15 and the ridge surface remains unchanged, maintaining the current planting depth.

[0063] In this embodiment, the planting depth control system 101 also includes a sensitivity adjustment rod 10, which is installed on the frame 1 and connected to the outer layer of the gate line 4. When the sensitivity adjustment rod 10 is turned to the "soft" side, the profiling sensitivity is improved, which is suitable for profiling of ridge surfaces with soft soil; when the sensitivity adjustment rod 10 is turned to the "hard" side, the profiling sensitivity is reduced, which is suitable for profiling of ridge surfaces with hard soil.

[0064] Specifically, when the ridge surface 200 is relatively hard, soil compression deformation is minimal, and the ridge surface 200 fluctuations are sensed by the ridge profiling mechanism 100 with high sensitivity. The gate wire 4 controls the operating position of the hydraulic reversing valve 13 (including left, middle, and right positions). The sensitivity adjustment lever 10 is adjusted to the left (the "hard" side), and the connection between the gate wire 4 and the hydraulic reversing valve 13 is tilted to the right. Only when the ridge surface fluctuations are greater can the hydraulic reversing valve 13 be shifted to the left position. Hydraulic oil begins to flow into the rodless chamber of the hydraulic cylinder 12, and the piston end of the hydraulic cylinder 12 extends, driving the planter 15 to rise and ensure planting depth. At this time, the profiling sensitivity is low, effectively avoiding profiling allergies caused by small fluctuations on a relatively hard ridge surface, and frequent vibration and bouncing of the transplanter.

[0065] Similarly, when the ridge surface 200 is soft, the soil compresses and deforms significantly, resulting in low sensitivity for the ridge profiling mechanism 100. By adjusting the sensitivity adjustment lever 10 to the right ("soft" side), the connection between the gate wire 4 and the hydraulic reversing valve 13 is tilted to the left. When the ridge surface 200 fluctuates less, the hydraulic reversing valve 13 is shifted to the left position, and hydraulic oil begins to flow into the rodless chamber of the hydraulic cylinder 12. The piston of the hydraulic cylinder 12 extends, driving the planter 15 to rise and ensure planting depth. This high profiling sensitivity effectively avoids profiling failures caused by soft soil, large compressive deformation, and large ridge surface fluctuations, but with little planter lift.

[0066] Another embodiment of the present invention provides a transplanter 300, such as Figure 1 As shown, the ridge surface profiling device disclosed in the above embodiment is installed. Specifically, the transplanter 300 is installed on the mobile device 400, and the ridge surface profiling mechanism 100 is installed on the frame 1 of the transplanter by bolt connection, and is located in front of the planter 15; the planting depth control system 100 is installed on the chassis frame 1' of the mobile device 400 and is connected to the ridge surface profiling mechanism 100 by the brake line 4 (as shown in FIG. Figure 2 ); the first frame 140 of the four-bar mechanism 14 is fixed to the chassis frame 1 '; the base of the hydraulic cylinder 12 is hinged to the first frame 140 of the four-bar mechanism 14 (eg Figure 2 ), the piston end 120 of the hydraulic cylinder 12 is hinged to the connecting rod 143 of the four-bar mechanism 14 (such as Figure 2 ), the hydraulic cylinder 12 is connected to the planting depth control system 101 through an oil pipeline (not shown).

[0067] In summary, the ridge profiling mechanism of this utility model senses the undulations of the ridge surface, changes the operating position of the hydraulic reversing valve via a gate wire, and thereby controls the extension and retraction of the hydraulic cylinder to achieve planting depth control. Furthermore, a profiling sensitivity adjustment lever adjusts the profiling mechanism's sensitivity to varying degrees of ridge surface hardness, resolving the issues of hydraulic lifting mechanism vibration and bouncing caused by excessively high sensitivity, and the poor consistency of planting depth caused by insufficient sensitivity. This utility model simplifies the mechanical structure, reduces profiling resistance, lowers manufacturing costs, and improves practicality.

[0068] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, all of which fall within the scope of protection of the present invention.

Claims

1. A transplanter profiling device, comprising a frame and a ridge profiling mechanism and a planting depth control system mounted on the frame, characterized in that: The ridge surface profiling mechanism includes a fixed crossbeam, a brake wire, a profiling swing arm, and a profiling wheel, wherein: the fixed crossbeam is mounted on the frame; the brake wire includes an outer layer and a core wire, the outer layer is connected to the fixed crossbeam, and one end of the core wire is movably connected to the profiling swing arm through a connecting rod; the profiling swing arm is movably connected to the fixed crossbeam; and the profiling wheel is movably connected to the profiling swing arm. The planting depth control system includes a hydraulic source, a hydraulic cylinder, a hydraulic reversing valve, a four-bar mechanism and a planter, wherein: the hydraulic source and the hydraulic reversing valve are installed on the frame; the base of the hydraulic cylinder is movably connected to the frame; the hydraulic reversing valve is connected to the hydraulic source, the hydraulic cylinder and the other end of the core wire; the four-bar mechanism is connected to the frame, the piston end of the hydraulic cylinder and the planter.

2. The device according to claim 1, characterized in that The ridge surface profiling mechanism further includes a first fixing plate and a second fixing plate, wherein: One end of the first fixing plate is mounted on the frame, and the other end is screwed to the outer layer of the brake wire; The second fixing plate is connected to the core wire of the brake wire and the connecting rod.

3. The device according to claim 1 or 2, characterized in that The hydraulic reversing valve is a three-position, three-way reversing valve, wherein: The P port of the hydraulic reversing valve is connected to the oil outlet of the hydraulic source, the T port of the hydraulic reversing valve is connected to the oil return port of the hydraulic source, the A port of the hydraulic reversing valve is connected to the rodless chamber of the hydraulic cylinder, and the left end of the hydraulic reversing valve is drive-connected to the other end of the core wire.

4. The device according to claim 1 or 2, characterized in that The four-bar mechanism includes a first frame, a crank and a rocker hinged to the first frame, and a connecting rod hinged to the crank and the rocker, wherein: The first rack is connected to the rack; The hinge point of the crank and the connecting rod is movably connected to the piston end of the hydraulic cylinder; The connecting rod has an extension end point at a hinge point with the rocker, and the extension end point is connected to the planter.

5. The device according to claim 1 or 2, characterized in that The planting depth control system further comprises a sensitivity adjustment rod which is mounted on the frame and connected to the outer layer of the brake wire.

6. The device according to claim 1 or 2, characterized in that The contoured wheel is connected to the contoured swing arm via a contoured pin rotation pair.

7. The device according to claim 1 or 2, characterized in that The fixed crossbeam is movably connected to the frame via bolts.

8. The device according to claim 2, characterized in that The second fixing plate is connected to the contoured swing arm rotation pair through the connecting rod.

9. The device according to claim 1 or 2, characterized in that There are multiple planters.

10. A transplanter, characterized in that: A transplanter profiling device according to any one of claims 1 to 9 is installed.

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