Seeding depth regulation and control chassis of plot potato seeder

Abstract

The invention 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] The invention belongs to the technical field of potato sowing machinery, and in particular relates to a sowing depth regulating chassis of a potato sowing machine for a small plot. Background Art

[0002] my country lists potatoes as the fourth major staple food crop after rice, wheat and corn, which shows its important position in my country's food security. The hilly and mountainous areas have complex geographical environments, small and irregular plots and heavy soil. Existing seeders have problems such as insufficient sowing depth, difficulty walking on hilly terrain, and poor adaptability. It can be seen that the performance of existing potato seeders cannot fully meet my country's agronomic requirements for potato planting. Designing a community potato seeding machine chassis with strong applicability, good passability, and meeting the planting needs of different terrains is the key to solving the above problems, which is of great significance to improving the level of mechanized potato planting in my country. Summary of the invention

[0003] The purpose of the present invention is to provide a sowing depth control chassis of a potato planter for plots in different terrains, which has good compactness, simple structure, and convenient adjustment, in view of the above-mentioned problems.

[0004] To achieve the above object, the present invention adopts the following technical solution: the potato planter sowing depth control chassis is composed of a front frame, a rear frame, a supporting ground wheel assembly, a driving ground wheel assembly, and a sowing depth control device.

[0005] The front frame consisting of the front crossbeam, the left longitudinal beam and the right longitudinal beam is fixed by a U-shaped clip. According to the operation requirements, the spacing between the supporting ground wheel assemblies and the driving ground wheel assemblies can be adjusted to adapt to ridge spacings of 750, 800, 850 and 900 mm.

[0006] The supporting ground wheel assembly consisting of the hand wheel, the adjusting screw, the screw square tube, the scale plate, the bracket, the ground wheel and the ground wheel shaft is used to adjust the relative distance between the screw square tube and the bracket and the sowing depth according to the agronomic requirements during operation by rotating the hand wheel to drive the adjusting screw to rotate.

[0007] The sowing depth control device composed of the hand wheel, the adjusting screw, the screw square tube, and the sowing depth control inner support can be operated by rotating the hand wheel to drive the adjusting screw to rotate, thereby adjusting the relative distance between the sowing depth control inner support and the screw square tube, and then adjusting the sowing depth according to the agronomic requirements.

[0008] The driving ground wheel assembly is composed of a driving ground wheel housing, a driving ground wheel housing cover, a driving hexagonal shaft, a driven hexagonal shaft, a large sprocket, a small sprocket, and a chain. When working, the driving hexagonal shaft drives the large sprocket to rotate, the large sprocket drives the small sprocket to rotate through the chain, the small sprocket drives the driven hexagonal shaft to rotate, and the driven hexagonal shaft drives the ground wheel to rotate. The transmission efficiency is higher and the transmission is more stable.

[0009] Due to the adoption of the above technical solution, the sowing depth control chassis of the potato planter provided by the present invention has the following beneficial effects compared with the prior art:

[0010] The sowing depth control chassis of the present invention can be used for sowing operations of machines under different soil and terrain conditions. When working on different types of soil, the height of the chassis relative to the ridge surface can be adjusted according to the sowing depth requirements to ensure consistency of sowing depth; when working on terrain with a certain slope, the supporting ground wheel assembly and the sowing depth control device can be adjusted to keep the fuselage in a horizontal state to increase the stability of the machine operation; when walking on uneven roads, adjusting the height of the chassis can allow the machine to pass smoothly, avoiding the chassis being too low so that the planting mechanism contacts the ground and collides and damages parts. The present invention greatly improves the adaptability of the machine and ensures the sowing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] Figure 1 Axonometric drawing of the chassis

[0013] Figure 2 Main view of the chassis

[0014] Figure 3 Chassis top view

[0015] Figure 4 AA section view

[0016] Figure 5 BB section view

[0017] Figure 6 For CC section view

[0018] Figure 7 A partial enlarged view of location Ⅰ

[0019] Figure 8 A partial enlarged view of location II

[0020] In the figure, it is marked as follows: 1. screw square tube, 2. front crossbeam, 3. right longitudinal beam, 4. U-shaped clip, 5. rear crossbeam, 6. large sprocket, 7. small sprocket, 8. rear frame, 9. width adjustment tube, 10. U-shaped clip connecting plate, 11. left longitudinal beam, 12. driving ground wheel assembly, 13. driven hexagonal shaft, 14. scale plate, 15. sowing depth adjustment inner support, 16. bearing sleeve, 17. support plate, 18. chain, 19. driving ground wheel sleeve, 20. driving ground wheel shaft sleeve, 21. handwheel, 22. adjusting screw, 23. supporting ground wheel assembly, 24. front frame, 25. sowing depth adjustment device, 26. bracket, 27. ground wheel shaft, 28. driving hexagonal shaft, 29. ground wheel, 30. driving ground wheel box cover, 31. driving ground wheel box. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0022] like Figure 1 , Figure 2 , Figure 3 The figure is a schematic diagram of the overall structure of a sowing depth control chassis of a plot potato planter according to the present invention. The left longitudinal beam (11) and the right longitudinal beam (3) are respectively fixed at both ends to the bottom of the front cross beam (2) and the rear cross beam (5) through U-shaped clips (4); the front frame is composed of three parts: the front cross beam (2), the left longitudinal beam (11) and the right longitudinal beam (3); the bracket (26) is connected to the front cross beam (2) through the U-shaped clip (4) and the connecting plate (10); the width adjustment tube (9) is connected to the rear cross beam (5) through a set screw; the sowing depth control inner support (1 5) is connected to the width adjustment tube (9) by a bolt fastener group; the scale plate (14) is respectively mounted on the sowing depth adjustment inner support (15) and the bracket (26) by welding; the sowing depth adjustment inner support (15) and the support plate (17) are connected by bolts; the support plate (17) and the driving ground wheel assembly (12) are connected by a bolt fastener group; the driving ground wheel sleeve (19) is fixed to the rear frame (8) by welding; the driving ground wheel shaft sleeve (20) and the driving ground wheel sleeve (19) are axially positioned by set screws.

[0023] like Figure 4 The internal installation of the supporting ground wheel is shown, the top of the bracket (26) is blocked with a trapezoidal threaded hole, and the adjusting screw (22) is screwed with the top blocking threaded hole 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) is provided with a keyway, and the adjusting screw (22) and the hand wheel (21) realize torque transmission through the key. According to the operation requirements, the hand wheel (21) is rotated to drive the adjusting screw (22) to rotate, and then the relative position of the screw square tube (1) and the bracket (26) is adjusted to adjust the height of the front frame.

[0024] like Figure 5 The internal installation of the sowing depth control device is shown. The upper end of the sowing depth control inner support (15) is provided with a trapezoidal threaded hole. The adjusting screw (22) is screwed with the top thread of the sowing depth control inner support (15). The adjusting screw (22) and the hand wheel (21) are connected by a key to achieve torque transmission. According to the operation requirements, the hand wheel (21) is rotated to drive the adjusting screw (22) to rotate, and then the relative position of the screw square tube (1) and the sowing depth control inner support (15) is adjusted to adjust the height of the rear frame.

[0025] like Figure 6 The driving wheel is installed internally, the driving wheel housing (31) and the driving wheel housing cover (30) are connected by a bolt fastener group, the driving wheel shaft sleeve (20) is fixed to the driving wheel housing (31) by bolts, and the bearing sleeve (16) is fixed to the driving wheel housing cover (30) by bolts; the small sprocket (7) is sleeved on the left side of the driving hexagonal shaft (28), and the large sprocket (6) is sleeved on the left side of the driven hexagonal shaft (13), and the large and small sprockets are axially positioned by bearings, positioning sleeves, shaft shoulders and shaft retaining rings at the same time; the left end faces of the driving hexagonal shaft (28) and the driven hexagonal shaft (13) are provided with threaded holes, and the axial positioning is achieved by bolts, flat washers, bearings, bearing sleeves (16) and shaft retaining rings. During operation, the hexagonal shaft (28) is driven to rotate, driving 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 realizing the walking of the chassis.

[0026] In summary, in combination with the agronomic needs of potato planting in the plot, the adjusting screw (22) is driven to rotate by rotating the hand wheel (21), thereby adjusting the relative position between the screw square tube (1) and the bracket (26), and between the screw square tube (1) and the sowing depth control inner support (15); the four hand wheels (21) are rotated respectively to complete the adjustment of the height of the chassis relative to the ridge surface, thereby achieving sowing depth adjustment, and the adjustment range is 8 to 15 cm. By adjusting the spacing between the supporting ground wheel assemblies (23) and the driving ground wheel assemblies (12) respectively, the ridge spacing of 750, 800, 850, and 900 mm can be adapted.

[0027] The sowing depth control chassis of the community potato planter has adjustable sowing depth, good passability and strong applicability, which can meet the needs of the machine to operate under different soil and terrain conditions.

Claims

1. A sowing depth control chassis for a potato planter in a small plot, characterized by: The invention is composed of five parts: a supporting ground wheel assembly (23), a front frame (24), a sowing depth control device (25), a driving ground wheel assembly (12), and a rear frame (8); the front frame (24) is composed of three parts: a front cross beam (2), a left longitudinal beam (11), and a right longitudinal beam (3); the left longitudinal beam (11) and the right longitudinal beam (3) are respectively fixed at both ends to the bottom of the front cross beam (2) and the rear cross beam (5) through U-shaped clips (4).

2. The sowing depth control chassis of the plot potato planter according to claim 1 is characterized by: The supporting ground wheel assembly (23) is composed of a hand wheel (21), an adjusting screw (22), a screw square tube (1), a scale plate (14), a bracket (26), a ground wheel shaft (27), and a ground wheel (29); the supporting ground wheel assembly (23) is connected to the front cross beam (2) through a U-shaped clip (4); a trapezoidal threaded hole is formed on the top of the bracket (26), and the adjusting screw (22) is screwed into the top of the bracket (26); the ground wheel (29) is installed on the lower end of the bracket (26) through the ground wheel shaft (27); a keyway is provided on the upper end of the adjusting screw (22), and torque transmission is achieved between the adjusting screw (22) and the hand wheel (21) through a key.

3. The sowing depth control chassis of the plot potato planter according to claim 1 is characterized in that: The sowing depth control device (25) is composed of a hand wheel (21), an adjusting screw (22), a screw square tube (1), and a sowing depth control inner support (15); a trapezoidal threaded hole is provided at the upper end of the sowing depth control inner support (15); the adjusting screw (22) is screwed with the top thread of the sowing depth control inner support (15); and the adjusting screw (22) and the hand wheel (21) are connected by a key to achieve torque transmission.

4. The sowing depth control chassis of the plot potato planter according to claim 1, characterized in that: The driving ground wheel assembly (12) is composed of a driving ground wheel shaft sleeve (20), a driving hexagonal shaft (28), a driving ground wheel housing (31), a driving ground 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 driving ground wheel housing (31) and the driving ground wheel housing cover (30) are connected by a bolt fastener group, the driving ground wheel shaft sleeve (20) is fixed to the driving ground wheel housing (31) by bolts, and the bearing sleeve (16) is fixed to the driving ground wheel housing cover (30) by bolts; the small sprocket (7) is sleeved on the driving hexagonal shaft (28 ) on the left side, the large sprocket (6) is sleeved on the left side of the driven hexagonal shaft (13), and the large and small sprockets are simultaneously axially positioned by bearings, positioning sleeves, shaft shoulders and shaft retaining rings; threaded holes are provided on the left end faces of the driving hexagonal shaft (28) and the driven hexagonal shaft (13), and the axial positioning of the two shafts is achieved by bolts, flat washers, bearings, bearing sleeves (16) and shaft retaining rings; during operation, the driving hexagonal shaft (28) rotates to drive 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 sowing depth control chassis of the plot potato planter according to claim 1, claim 2 and claim 3, characterized in that: According to the operation requirements, the hand wheel (21) is rotated to drive the adjusting screw (22) to rotate, thereby adjusting the relative position between the screw square tube (1) and the bracket (26), and between the screw square tube (1) and the sowing depth regulating inner support (15); the four hand wheels (21) are rotated respectively to complete the adjustment of the height of the chassis relative to the ridge surface, thereby realizing the sowing depth adjustment, and the adjustment range is 8 to 15 cm.

6. The sowing depth control chassis of the plot potato planter according to claim 1, claim 2 and claim 4, characterized in that: By adjusting the spacing between the supporting ground wheel assemblies (23) and the spacing between the driving ground wheel assemblies (12) respectively, ridge spacings of 750, 800, 850, and 900 mm can be accommodated.

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