An adjustable depth potato planter opening device

Abstract

The utility model discloses a kind of adjustable depth's potato planter furrowing device, it is related to agricultural equipment technical field;The utility model includes crossbeam, the bottom of crossbeam is provided with furrowing device, the both sides of crossbeam are fixedly connected with fixed frame;The both sides of fixed frame are provided with support assembly, support assembly includes the fixed sleeve of installation in the front side and rear side of fixed frame;The utility model realizes the accurate adjustment and stable keeping of furrowing depth by the synergic effect of support assembly and limiting component, the vertical sliding of support rod in fixed sleeve cooperates the mechanical locking of limiting pipe, effectively eliminates the inclination problem caused by traditional furrowing device due to soil reaction force, support wheel and ground contact form stable three-point support structure, cooperate with the insertion of bidirectional limiting pipe driven by screw rod into support rod limiting hole, make furrowing device into soil angle deviation be controlled, simultaneously through the anti-rotation design of support sleeve and clamping plate, ensure that depth drift will not be caused due to vibration in operation process.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural equipment technology, and in particular relates to an adjustable-depth ditching device for potato planting machines. Background Technology

[0002] Furrowing is a crucial step in potato planting, directly impacting tuber growth and yield. Furrowing is typically done on leveled land after fertilization and tilling, using plows, furrow openers, or manual hoes. The furrow depth is generally 10-15 cm (adjusted depending on the variety). Furrow spacing (row spacing) is determined by the planting pattern; for example, 50-60 cm for single-row planting and 70-80 cm for double-row planting. The furrow bottom should be flat and loose to facilitate tuber enlargement and root development. When furrowing, ensure the furrow walls are vertical and the bottom is free of large clods of soil, while also considering drainage needs (deeper furrows can be added during the rainy season). This lays the foundation for subsequent steps such as planting, covering with soil, and mulching, ensuring a loose, well-aerated, and nutrient-concentrated growing environment for the potatoes.

[0003] Most current potato planting trenching machines use a trencher that penetrates deep into the soil. A traction device pulls the trencher to open up the soil layer and achieve the trenching effect. When adjusting the trenching depth, the height of the trencher is often adjusted directly. When the traction device pulls the trencher after the depth is adjusted, the angle of the trencher will tilt downward, turning up the bottom soil. The depth of the trencher will be out of control, resulting in excessive force on the trencher, affecting the normal operation of the traction device, and there is also a risk of the trencher breaking. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable-depth ditching device for potato planting machines. By combining the support components and the limiting components, it solves the problem in the prior art where the height of the ditching device is directly adjusted, causing the angle of the ditching device to tilt downwards, resulting in excessive force on the ditching device and affecting the normal operation of the traction equipment.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0006] An adjustable-depth potato planting machine ditching device includes a crossbeam, wherein a ditcher is provided at the bottom of the crossbeam, and fixed frames are fixedly connected to both sides of the crossbeam; support components are provided on both sides of the fixed frames, each support component including a fixed sleeve installed on the front and rear sides of the fixed frame, a support rod slidably connected to the fixed sleeve, a support wheel movably connected to the support rod, and a crossbar installed on the top of the support rod; a limit component is provided on the fixed frame, the limit component including a limit hole opened in the support rod, a screw movably connected to the fixed frame, and a limit tube threadedly connected to the screw.

[0007] As an improvement of this utility model, one side of the limiting tube extends to the outside of the fixing frame, and the diameter of the limiting tube is the same as the inner diameter of the limiting hole.

[0008] As a further improvement of this utility model, the surface of the screw is movably connected to the inner wall of the fixing frame through a bearing, and the threads on both sides of the surface of the screw are opposite.

[0009] As a further improvement of this utility model, a slider is fixedly connected to the bottom of the limiting tube, and the slider is movably connected to the inner wall of the fixing frame.

[0010] As a further improvement of this utility model, a support sleeve is fitted on the surface of the screw, one side of the support sleeve is fixedly connected to the fixing frame, a slot is opened on the surface of the support sleeve, and a limit plate is fixedly connected to one side of the support sleeve.

[0011] As a further improvement of this utility model, a rotating sleeve is fixedly connected to the surface of the screw, a rotating groove is provided on one side of the rotating sleeve, a rotating shaft is movably connected inside the rotating groove, and a snap-fit ​​plate is fixedly connected to the rotating shaft.

[0012] As a further improvement of this utility model, a torsion spring is fixedly connected to the rotating shaft, and one end of the torsion spring is fixedly connected to the inner wall of the rotating groove.

[0013] As a further improvement of this utility model, a bracket is fixedly connected to the top of the trencher, one end of the bracket is fixedly connected to the crossbeam, and a traction frame is fixedly connected to the fixed frame.

[0014] This utility model has the following beneficial effects:

[0015] 1. Through the synergistic effect of the support components and the limiting components, the trenching depth is precisely adjusted and stably maintained. The vertical sliding of the support rod in the fixed sleeve, combined with the mechanical locking of the limiting tube, effectively eliminates the tilting problem caused by soil reaction force in traditional trenchers. The support wheel contacts the ground to form a stable three-point support structure. With the screw-driven bidirectional limiting tube inserted into the limiting hole of the support rod, the deviation of the trencher's soil entry angle is controlled. At the same time, the anti-rotation design of the support sleeve and the snap-fit ​​plate ensures that the depth will not drift due to vibration during operation.

[0016] 2. The unique self-locking adjustment mechanism significantly improves the convenience and stability of equipment operation. The rotating sleeve is locked by a ratchet-type locking mechanism between the snap plate driven by the torsion spring and the slot of the support sleeve. After the depth adjustment is completed, it can automatically stop the screw from rotating. Combined with the limit plate, the double insurance mechanism can withstand longitudinal impact force, prevent the support rod from shifting, and avoid the risk of breakage of the trencher due to angle tilt. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a perspective view of an adjustable-depth ditching device for a potato planter according to the present invention.

[0019] Figure 2 This is a partial sectional view of the fixing frame and support rod in the ditching device of an adjustable-depth potato planter according to the present invention.

[0020] Figure 3 This is a cross-sectional view of the limiting tube in the ditching device of an adjustable-depth potato planter according to this utility model.

[0021] Figure 4 This is a cross-sectional view of the support sleeve in the ditching device of an adjustable-depth potato planter according to the present invention.

[0022] Figure 5 This is a cross-sectional view of the rotating sleeve in the ditching device of an adjustable-depth potato planter according to this utility model.

[0023] Reference numerals: 1. Crossbeam; 2. Trench opener; 3. Fixing frame; 4. Support assembly; 401. Fixing sleeve; 402. Support rod; 403. Support wheel; 404. Crossbar; 5. Limiting assembly; 501. Limiting hole; 502. Screw; 503. Limiting tube; 6. Support sleeve; 7. Slot; 8. Limiting plate; 9. Rotating sleeve; 10. Rotating groove; 11. Rotating shaft; 12. Connecting plate; 13. Torsion spring; 14. Bracket; 15. Traction frame. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] This utility model relates to an adjustable-depth ditching device for potato planting machines, and provides the following embodiments: Example 1

[0026] like Figures 1 to 5As shown, Embodiment 1 includes a crossbeam 1, with a trencher 2 at the bottom of the crossbeam 1, and fixed frames 3 fixedly connected to both sides of the crossbeam 1; support components 4 are provided on both sides of the fixed frames 3, and the support components 4 include fixed sleeves 401 installed on the front and rear sides of the fixed frames 3, support rods 402 slidably connected inside the fixed sleeves 401, support wheels 403 movably connected to the bottom of the support rods 402, and crossbars 404 installed on the top of the support rods 402; a limit component 5 is provided on one side of the fixed frames 3, and the limit component 5 includes a limit hole 501 opened on one side of the support rods 402, a screw 502 movably connected inside the fixed frames 3, and limit tubes 503 threadedly connected to both sides of the surface of the screw 502.

[0027] In Example 1, the trencher 2 is rigidly connected to the crossbeam 1 via the top bracket 14. The outward-folding design can efficiently peel off the soil layer. Its cutting edge angle optimizes the soil breaking effect and reduces the travel resistance. The fixing sleeve 401 is made of wear-resistant alloy and has a linear guide groove on the inner wall to ensure that the support rod 402 can only slide in the vertical direction. The support wheel 403 adopts a rubber-coated universal wheel structure, which can adapt to soft soil. Its free rotation characteristics effectively reduce the travel resistance. At the same time, the wheel diameter and trenching depth form a proportional relationship to achieve precise depth control.

[0028] In Embodiment 1, there are six limiting holes 501, which are arrayed on the side of the support rod 402 and locked together with the limiting tube 503. The bidirectional reverse thread structure of the screw 502 can drive the limiting tubes 503 on both sides to move towards each other in a single rotation. Its trapezoidal thread has a self-locking characteristic to prevent accidental loosening caused by operational vibration. Example 2

[0029] Based on Example 1, in Example 2, one side of the limiting tube 503 extends to the outside of the fixing frame 3. The diameter of the limiting tube 503 is the same as the inner diameter of the limiting hole 501. The surface of the screw 502 is movably connected to the inner wall of the fixing frame 3 through a bearing. The threads on both sides of the surface of the screw 502 are opposite. A slider is fixedly connected to the bottom of the limiting tube 503. The slider is movably connected to the inner wall of the fixing frame 3. A support sleeve 6 is sleeved on the surface of the screw 502. One side of the support sleeve 6 is fixedly connected to the fixing frame 3. A slot 7 is opened on the surface of the support sleeve 6. A limiting plate 8 is fixedly connected to one side of the support sleeve 6.

[0030] In embodiment 2, a rotating sleeve 9 is fixedly connected to the surface of the screw 502. A rotating groove 10 is formed on one side of the rotating sleeve 9. A rotating shaft 11 is movably connected inside the rotating groove 10. A snap-fit ​​plate 12 is fixedly connected to the surface of the rotating shaft 11. A torsion spring 13 is fixedly connected to the surface of the rotating shaft 11. The other end of the torsion spring 13 is fixedly connected to the inner wall of the rotating groove 10. A bracket 14 is fixedly connected to the top of the trencher 2. The other end of the bracket 14 is fixedly connected to the crossbeam 1. A traction frame 15 is fixedly connected to one side of the fixing frame 3. The diameter of the limiting tube 503 is the same as the inner diameter of the limiting hole 501, so that the limiting tube 503 can be inserted into the limiting hole when it moves. Inside 501, the support sleeve 6 is installed inside the fixed frame 3. The limiting plate 8 forms a mechanical stop on the snap-fit ​​plate 12. The rotating sleeve 9 has anti-slip texture on its surface, which can enhance the operating feel. When the snap-fit ​​plate 12 rotates, it slides on the surface of the support sleeve 6. The elasticity of the torsion spring 13 can be used to make the snap-fit ​​plate 12 fit against the surface of the support sleeve 6. When the rotating sleeve 9 rotates counterclockwise one revolution, the snap-fit ​​plate 12 can be aligned with the slot 7. At the same time, the rotating sleeve 9 drives the two sets of limiting tubes 503 to be inserted into the limiting hole 501 simultaneously to achieve the self-locking function. The traction frame 15 adopts a detachable hinge design and can be connected and fixed to the agricultural machinery hook-up interface.

[0031] In this utility model, when it is necessary to adjust the trenching depth, the operator can manually pull the crossbar 404 upwards. The crossbar 404 drives the two sets of support rods 402 to move. When the support rods 402 move, the support height of the support wheel 403 is adjusted. After adjusting to the specified height, the rotating sleeve 9 can be manually rotated counterclockwise. The rotating sleeve 9 drives the screw 502 to rotate. Through the oppositely designed threads on the surface of the screw 502, the two sets of limiting tubes 503 can be driven to move in opposite directions. When the limiting tubes 503 move, they are inserted into the limiting holes 501 to fix the support height of the support rod 402. When the rotating sleeve 9 continues to rotate, it can drive the snap-fit ​​plate 12 to slide on the surface of the support sleeve 6. After the rotating sleeve 9 rotates counterclockwise one revolution, the snap-fit ​​plate 12 can be aligned with the snap-fit ​​groove 7. Under the reset action of the torsion spring 13, the snap-fit ​​plate 12 is inserted into the snap-fit ​​groove 7, preventing the rotating sleeve 9 from rotating on its own, thus fixing the height of the support rod 402.

[0032] In this utility model, the worker uses the traction frame 15 to fix the fixed frame 3 to the external traction equipment. The external traction equipment drives the crossbeam 1 to move. When the crossbeam 1 moves, it drives the trencher 2 to move. When the trencher 2 is inserted into the soil, the outward flipping design of the trencher 2 flips the soil layer outward to achieve the function of trenching. At the same time as the crossbeam 1 drives the trencher 2 to move, it drives the four sets of support wheels 403 to move synchronously. The four sets of support wheels 403 contact the ground and work with the support rod 402 to support the crossbeam 1. When the trencher 2 flips the soil downward, the support wheels 403 fix the support height of the trencher 2, maintain the travel height of the trencher 2, and prevent the trencher 2 from tilting and digging towards the bottom of the soil layer during the travel process, thus playing a protective role.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A trenching device for an adjustable-depth potato planter, comprising a crossbeam, characterized in that: A trencher is provided at the bottom of the crossbeam, and a fixing frame is fixedly connected to both sides of the crossbeam; a support assembly is provided on both sides of the fixing frame, the support assembly including a fixing sleeve installed on the front and rear sides of the fixing frame, a support rod slidably connected in the fixing sleeve, a support wheel movably connected to the support rod, and a crossbar installed on the top of the support rod; a limit assembly is provided on the fixing frame, the limit assembly including a limit hole opened in the support rod, a screw movably connected in the fixing frame, and a limit tube threadedly connected in the screw.

2. The adjustable-depth ditching device for a potato planter according to claim 1, characterized in that: One side of the limiting tube extends to the outside of the fixing frame, and the diameter of the limiting tube is the same as the inner diameter of the limiting hole.

3. The adjustable-depth ditching device for a potato planter according to claim 1 or 2, characterized in that: The surface of the screw is movably connected to the inner wall of the fixed frame via a bearing, and the threads on both sides of the surface of the screw are opposite.

4. The adjustable-depth ditching device for a potato planter according to claim 1, characterized in that: The bottom of the limiting tube is fixedly connected to a slider, which is movably connected to the inner wall of the fixing frame.

5. The adjustable-depth ditching device for a potato planter according to claim 1, characterized in that: A support sleeve is fitted on the surface of the screw, one side of the support sleeve is fixedly connected to the fixing frame, a slot is opened on the surface of the support sleeve, and a limit plate is fixedly connected to one side of the support sleeve.

6. The adjustable-depth ditching device for a potato planter according to claim 1 or 5, characterized in that: A rotating sleeve is fixedly connected to the surface of the screw. A rotating groove is provided on one side of the rotating sleeve. A rotating shaft is movably connected inside the rotating groove. A snap-fit ​​plate is fixedly connected to the rotating shaft.

7. The adjustable-depth ditching device for a potato planter according to claim 6, characterized in that: A torsion spring is fixedly connected to the rotating shaft, and one end of the torsion spring is fixedly connected to the inner wall of the rotating groove.

8. The adjustable-depth ditching device for a potato planter according to claim 1, characterized in that: The top of the trencher is fixedly connected to a bracket, one end of which is fixedly connected to the crossbeam, and a traction frame is fixedly connected to the fixed frame.

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