Seeding depth regulation and control chassis of plot potato seeder

Abstract

The utility model belongs to the technical field of potato seeding machinery, and particularly relates to a plot potato seeder seeding depth regulation and control chassis which comprises a front rack, a supporting land wheel assembly, a seeding depth regulation and control device, a driving land wheel assembly and a rear rack, the front rack is composed of a left longitudinal beam, a right longitudinal beam and a front cross beam, the two ends of the left longitudinal beam and the two ends of the right longitudinal beam are connected with the front cross beam and the rear cross beam through U-shaped clamps respectively, and the rear cross beam is fixed to the rear rack through welding. Supporting land wheel assemblies are mounted on the left and right sides of the front cross beam; the middle part of the sowing depth regulating device is connected with the rear cross beam through a breadth regulating square pipe, and the bottom end is connected with the driving land wheel box through a supporting plate. Before operation, the operation requirements of different ridge widths can be met by adjusting the distance between the supporting land wheel assemblies and the driving land wheel assemblies on the left side and the right side; the height from the rack to a ridge surface can be adjusted by rotating the supporting land wheel assembly and a hand wheel on the seeding depth adjusting and controlling device, so that the seeding depth is adjusted. The seeder chassis has the characteristics of being simple in structure, convenient to adjust and suitable for operation in different terrains.

Description

Technical Field

[0001] This utility model belongs to the field of potato planting machinery technology, and in particular relates to a planting depth control chassis for a small-area potato planter. Background Technology

[0002] The hilly and mountainous terrain is complex, with small, irregular plots and heavy, sticky soil. Existing potato planters suffer from insufficient planting depth, difficulty navigating hilly terrain, and poor adaptability. Clearly, the performance of existing potato planters cannot fully meet the agronomical requirements for potato cultivation in my country. Designing a compact potato planter chassis that is highly adaptable, has good maneuverability, and meets the needs of planting in different terrains is key to solving these problems and is of great significance for improving the level of mechanized potato cultivation in my country. Summary of the Invention

[0003] The purpose of this invention is to address the problems mentioned above by providing a compact, simple, and easily adjustable potato planter depth control chassis suitable for different terrains.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: The potato planter's planting depth control chassis consists of a front frame, a rear frame, a support wheel assembly, a drive wheel assembly, and a planting depth control device. The front frame, composed of a front crossbeam, a left longitudinal beam, and a right longitudinal beam, is fixed by U-shaped clips. The spacing between the support wheel assemblies and the drive wheel assemblies can be adjusted according to operational requirements to accommodate row spacing of 750, 800, 850, and 900 mm.

[0005] The supporting ground wheel assembly consists of a handwheel, adjusting screw, screw square tube, scale plate, bracket, ground wheel, and ground wheel axle. During operation, the relative distance between the screw square tube and the bracket is adjusted by rotating the handwheel to drive the adjusting screw, thereby adjusting the sowing depth, according to agronomic requirements.

[0006] The sowing depth control device consists of a handwheel, an adjusting screw, a screw square tube, and an inner support for sowing depth control. During operation, the sowing depth is adjusted by rotating the handwheel to drive the adjusting screw, thereby adjusting the relative distance between the inner support and the screw square tube, and thus regulating the sowing depth according to agronomic requirements.

[0007] The drive wheel assembly consists of a drive wheel housing, a drive wheel housing cover, a drive hexagonal shaft, a driven hexagonal shaft, a large sprocket, a small sprocket, and a chain. During operation, the drive hexagonal shaft rotates the large sprocket, which in turn drives the small sprocket via the chain. The small sprocket then drives the driven hexagonal shaft, which in turn drives the ground wheel. This results in higher transmission efficiency and smoother transmission.

[0008] By adopting the above technical solution, the planting depth control chassis of the potato planter provided by this utility model has the following advantages compared with the prior art:

[0009] The sowing depth control chassis of this invention is suitable for sowing operations under different soil and terrain conditions. When operating on different soil types, the height of the chassis relative to the ridge surface can be adjusted according to the required sowing depth, ensuring consistent sowing depth. When operating on sloping terrain, adjusting the support wheel assembly and sowing depth control device keeps the machine level, increasing operational stability. When traveling on uneven surfaces, adjusting the chassis height allows the machine to pass smoothly, preventing the planting mechanism from colliding with the ground and damaging components due to a low chassis. This invention significantly improves the adaptability of the machine and ensures sowing quality. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings.

[0011] Figure 1 is the chassis axonometric drawing.

[0012] Figure 2 shows the main view of the chassis.

[0013] Figure 3 is a top view of the chassis.

[0014] Figure 4 is a cross-sectional view of AA.

[0015] Figure 5 is a cross-sectional view of BB.

[0016] Figure 6 is a CC cross-sectional view.

[0017] Figure 7 is a magnified view of section I.

[0018] Figure 8 is a magnified view of section II.

[0019] The components shown in the diagram are: 1. Screw square tube; 2. Front crossbeam; 3. Right longitudinal beam; 4. U-shaped clamp; 5. Rear crossbeam; 6. Large sprocket; 7. Small sprocket; 8. Rear frame; 9. Width adjustment tube; 10. U-shaped clamp connecting plate; 11. Left longitudinal beam; 12. Drive wheel assembly; 13. Driven hexagonal shaft; 14. Scale plate; 15. Seeding depth control inner support; 16. Bearing sleeve; 17. Support plate; 18. Chain; 19. Drive wheel sleeve; 20. Drive wheel bushing; 21. Handwheel; 22. Adjusting screw; 23. Support wheel assembly; 24. Front frame; 25. Seeding depth control device; 26. Bracket; 27. Wheel shaft; 28. Drive hexagonal shaft; 29. ​​Wheel. 30. Drive wheel box cover; 31. Drive wheel box body. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0021] Figures 1, 2, and 3 show the overall structure of the planting depth control chassis of a potato planter for a small area according to this utility model. The left longitudinal beam (11) and the right longitudinal beam (3) are fixed at both ends to the front crossbeam (2) and the rear crossbeam (5) respectively by U-shaped clips (4); the front frame is composed of three parts: the front crossbeam (2), the left longitudinal beam (11), and the right longitudinal beam (3); the bracket (26) is connected to the front crossbeam (2) by U-shaped clips (4) and connecting plate (10); the width adjustment tube (9) is connected to the rear crossbeam (5) by set screws; the planting depth control inner support (15) is connected to the width adjustment tube (9) by bolt fasteners; the scale plate (14) is welded to the planting depth control inner support (15) and the bracket (26) respectively; the planting depth control inner support (15) is connected to the support plate (17) by bolts; The support plate (17) and the drive wheel assembly (12) are connected by a bolt fastener group; the drive wheel sleeve (19) is fixed to the rear frame (8) by welding; the drive wheel bushing (20) and the drive wheel sleeve (19) are axially positioned by a set screw.

[0022] As shown in Figure 4, the internal installation of the support wheel is as follows: the top of the bracket (26) has a trapezoidal threaded hole, and the adjusting screw (22) is screwed into the threaded hole at the top of the bracket (26); the ground wheel (29) is installed at the lower end of the bracket (26) through the ground wheel shaft (27); the upper end of the adjusting screw (22) has a keyway, and the adjusting screw (22) and the handwheel (21) are connected by a key to achieve torque transmission. According to the operation requirements, rotating the handwheel (21) drives the adjusting screw (22) to rotate, thereby adjusting the relative position of the screw square tube (1) and the bracket (26) to adjust the height of the front frame.

[0023] As shown in Figure 5, the internal installation of the seeding depth control device is as follows: the upper end of the seeding depth control inner support (15) is provided with a trapezoidal threaded hole, and the adjusting screw (22) is screwed into the top thread of the seeding depth control inner support (15); the adjusting screw (22) and the handwheel (21) are connected by a key to realize torque transmission. According to the operation requirements, rotating the handwheel (21) drives the adjusting screw (22) to rotate, thereby adjusting the relative position of the screw square tube (1) and the seeding depth control inner support (15) to adjust the height of the rear frame.

[0024] As shown in Figure 6, the drive wheel housing (31) and drive wheel housing cover (30) are connected by a bolt fastener group. The drive wheel bushing (20) is fixed to the drive wheel housing (31) by bolts, and the bearing sleeve (16) is fixed to the drive wheel housing cover (30) by bolts. The small sprocket (7) is fitted on the left side of the drive hexagonal shaft (28), and the large sprocket (6) is fitted on the left side of the driven hexagonal shaft (13). The large and small sprockets are axially positioned simultaneously by bearings, positioning sleeves, shaft shoulders, and shaft retaining rings. The left end faces of the drive hexagonal shaft (28) and the driven hexagonal shaft (13) are provided with threaded holes, and axial positioning is achieved by bolts, flat washers, bearings, bearing sleeves (16), and shaft retaining rings. During operation, the drive hexagonal shaft (28) rotates, which in turn drives the small sprocket (7) to rotate. The small sprocket (7) transmits power to the large sprocket (6) through the chain (18). The large sprocket (6) drives the driven hexagonal shaft (13) to rotate, thereby enabling the chassis to move.

[0025] In summary, based on the agronomical requirements of potato planting in the community, the relative positions between the screw rod square tube (1) and the support (26), and between the screw rod square tube (1) and the inner support (15) for sowing depth adjustment, are adjusted by rotating the handwheel (21) to drive the adjusting screw rod (22). The height of the chassis relative to the ridge surface is adjusted by rotating the four handwheels (21) respectively, thereby realizing the adjustment of sowing depth, with an adjustment range of 8~15cm. By adjusting the spacing between the support wheel assemblies (23) and the drive wheel assembly (12) respectively, ridge spacing of 750, 800, 850, and 900mm can be accommodated.

[0026] The potato planter chassis in this community features adjustable planting depth, good maneuverability, and strong applicability, meeting the needs of the machine to operate under different soil and terrain conditions.

Claims

1. A cell potato planter depth control chassis, characterized by: It consists of five parts: a supporting ground wheel assembly (23), a front frame (24), a seeding depth control device (25), a driving ground wheel assembly (12), and a rear frame (8). The front frame (24) consists of three parts: a front crossbeam (2), a left longitudinal beam (11), and a right longitudinal beam (3). The left longitudinal beam (11) and the right longitudinal beam (3) are fixed at both ends to the front crossbeam (2) and the rear crossbeam (5) respectively by U-shaped clips (4).

2. The planting depth control chassis of the small-area potato planter according to claim 1, characterized in that: The supporting wheel assembly (23) consists of a handwheel (21), an adjusting screw (22), a screw square tube (1), a scale plate (14), a bracket (26), a wheel shaft (27), and a wheel (29). The supporting wheel assembly (23) is connected to the front crossbeam (2) via a U-shaped clamp (4). The top of the bracket (26) is sealed with a trapezoidal threaded hole, and the adjusting screw (22) is screwed into the threaded hole at the top of the bracket (26). The wheel (29) is installed at the lower end of the bracket (26) via the wheel shaft (27). The upper end of the adjusting screw (22) is provided with a keyway, and the adjusting screw (22) and the handwheel (21) transmit torque via a key.

3. The cell potato planter depth control chassis of claim 1, wherein: The seeding depth control device (25) consists of a handwheel (21), an adjusting screw (22), a screw square tube (1), and a seeding depth control inner support (15). The upper end of the seeding depth control inner support (15) is provided with a trapezoidal threaded hole, and the adjusting screw (22) is screwed into the top thread of the seeding depth control inner support (15). The adjusting screw (22) and the handwheel (21) are connected by a key to realize torque transmission.

4. The cell potato planter depth control chassis of claim 1, wherein: The drive wheel assembly (12) consists of a drive wheel bushing (20), a drive hexagonal shaft (28), a drive wheel housing (31), a drive wheel housing cover (30), a small sprocket (7), a chain (18), a large sprocket (6), a driven hexagonal shaft (13), and a bearing sleeve (16). The drive wheel housing (31) and the drive wheel housing cover (30) are connected by bolt fasteners. The drive wheel bushing (20) is fixed to the drive wheel housing (31) by bolts, and the bearing sleeve (16) is fixed to the drive wheel housing cover (30) by bolts. The small sprocket (7) is fitted on the left side of the drive hexagonal shaft (28), and the large sprocket (6) is fitted on the left side of the driven hexagonal shaft (13). The large and small sprockets are connected by bearings, positioning sleeves, shaft shoulders, and shafts. Axial positioning is achieved simultaneously using retaining rings; threaded holes are provided on the left end faces of both the driving hexagonal shaft (28) and the driven hexagonal shaft (13), and axial positioning of the two shafts is achieved through bolts, flat washers, bearings, bearing sleeves (16) and shaft retaining rings; during operation, the driving hexagonal shaft (28) rotates, driving the small sprocket (7) to rotate, and the small sprocket (7) transmits power to the large sprocket (6) through the chain (18), and the large sprocket (6) drives the driven hexagonal shaft (13) to rotate, thereby realizing the movement of the chassis.

5. The planting depth control chassis of the small-area potato planter according to claim 1, claim 2, or claim 3, characterized in that: According to the operational requirements, rotate the handwheel (21) to drive the adjusting screw (22) to rotate, thereby adjusting the relative position between the screw square tube (1) and the support (26), and between the screw square tube (1) and the inner support (15) for sowing depth control; rotate the four handwheels (21) respectively to complete the adjustment of the height of the chassis relative to the ridge surface, thereby realizing the sowing depth adjustment, with an adjustment range of 8~15cm.

6. The cell potato planter depth control chassis of claim 1 or claim 2 or claim 4, characterized by: By adjusting the spacing between the support wheel assemblies (23) and the drive wheel assembly (12) respectively, ridge spacing of 750, 800, 850, and 900 mm can be accommodated.

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