A seeder with adjustable row spacing

Abstract

The utility model relates to sowing machine technical field especially adjustable sowing row spacing's sowing machine has solved the problem that traditional sowing machine exists and row spacing adjustment is complicated, precision is low, easy to shift. A kind of adjustable sowing row spacing's sowing machine, including sowing component array, support frame, drive shaft, stirring shaft, sowing component array is made of several sowing units and is arranged in support frame, and sowing unit includes seed metering box, seed conveying pipe, mobile base, seed metering box is rotatably equipped with profile hole wheel, seed metering box both sides are equipped with connecting piece;Support frame includes two groups of drive box, the opposite side of guide rod is equipped with guide slot, and several electric push rods are equipped in guide slot, and guide block extends to the outside of guide slot and is fixedly connected with connecting piece. The utility model has realized the stepless accurate regulation of sowing row spacing, improves sowing efficiency and quality, and reduces operating intensity.

Description

Technical Field

[0001] This utility model relates to the field of seeders, and in particular to a seeder with adjustable row spacing. Background Technology

[0002] Seeders are key agricultural machinery used to sow seeds into the soil at predetermined row spacing, plant spacing, and depth. They can significantly improve sowing efficiency, uniformity, and seed utilization. Seeders complete processes such as "ditching → sowing → covering with soil → compaction" through mechanical devices, replacing traditional manual sowing and achieving precision sowing.

[0003] Traditional seeders typically use fixed row spacing for large-area fixed-product planting. The row spacing cannot be directly adjusted, requiring the replacement of the seeding component. Some seeders with adjustable row spacing use mechanical structures to adjust the row spacing, requiring manual loosening of bolts, movement of seeding units, and re-tightening. Adjusting the entire machine once is time-consuming and prone to uneven row spacing due to visual deviation. After multiple adjustments, the tightening effect at the connection points decreases, making it easy for misalignment to occur.

[0004] Therefore, a seeder with adjustable row spacing is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the problems of cumbersome row spacing adjustment, low precision, and easy displacement of traditional seeders. This invention provides a seeder with adjustable row spacing.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] An adjustable seeding row spacing seeder includes a seeding component array, a support frame, a drive shaft, and a stirring shaft. The seeding component array consists of several seeding units and is arranged within the support frame. The front end of the support frame has a suspension device connected to a tractor. Each seeding unit includes a seed metering box, a seed delivery pipe, and a movable base. The seed delivery pipe is used to connect the seed metering box outlet and a furrow opener. A perforated wheel is rotatably provided inside the seed metering box, and connecting parts are provided on both sides of the seed metering box.

[0008] The support frame includes two sets of drive boxes. The drive shaft and stirring shaft are located between the drive boxes and are rotatably connected to the drive boxes. Each stirring shaft located in the seed metering box has a lever slidably sleeved on it. Guide rods are symmetrically arranged between the drive boxes. Each guide rod has a guide groove on its opposite side. Several electric push rods are arranged in the guide groove. The front end of each electric push rod has a guide block that is slidably connected to the guide groove. The guide block extends to the outside of the guide groove and is fixedly connected to the connector. The outside of the connector is a square tube structure sleeved on the guide rod. A fastening mechanism is provided between the connector and the guide rod.

[0009] The mobile base is equipped with a ditch opener, and the drive box connects the drive shaft and stirring shaft to the power output shaft of the agricultural machinery via a sprocket. A compactor is attached to the rear of the support frame.

[0010] As an improvement, the inner side of the shaped hole wheel is symmetrically provided with a locking pin, the drive shaft is symmetrically provided with a locking groove, the inner wall of the sleeve of the lever is symmetrically provided with a locking pin, and the stirring shaft is symmetrically provided with a locking groove.

[0011] As an improvement, a support rod is connected to the bottom of the connector, and the two support tubes form a cross and are fixed to the movable base.

[0012] As an improvement, the fastening mechanism includes a housing, in which a wedge is slidably disposed, the wedge passing through a connector and contacting a guide rod, and a miniature cylinder is disposed within the housing for driving the wedge to move.

[0013] As an improvement, a displacement sensor is provided on one side of the connector.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The guide groove mechanism driven by the electric actuator enables stepless and precise adjustment of the sowing row spacing. The row spacing adjustment is precise. Combined with the mechanical locking of the wedge block and the displacement sensor feedback, it solves the problems of cumbersome adjustment, low precision and easy displacement of traditional seeders.

[0016] 2. Improve sowing efficiency and quality, reduce operational intensity, and provide a practical equipment foundation for precision agriculture. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the sowing unit structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the sowing unit of this utility model;

[0020] Figure 4 This is a partial sectional view of the guide rod of this utility model.

[0021] Figure 5 This is a sectional view of a partial connection of the drive shaft of this utility model.

[0022] Figure 6 This is a cross-sectional view of a partial connection of the stirring shaft of this utility model.

[0023] Reference numerals: 1. Seeding unit; 10. Seed metering box; 11. Seed delivery pipe; 12. Movable base; 13. Connector; 14. Support rod; 101. Hole wheel; 102. Locking pin one; 2. Support frame; 20. Drive box; 21. Guide rod; 22. Guide groove; 23. Electric push rod; 24. Guide block; 25. Pulley; 26. Locking pin two; 3. Drive shaft; 30. Locking groove one; 4. Stirring shaft; 40. Locking groove two; 5. Housing; 51. Wedge; 52. Miniature cylinder; 6. Displacement sensor. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Reference Figure 1-6 A seeder with adjustable row spacing, comprising:

[0029] Support frame 2: It consists of two sets of parallel drive boxes 20, with a suspension device at the front end to connect to the tractor and a presser attached to the rear side.

[0030] Transmission system: Drive shaft 3 and stirring shaft 4 are rotatably connected between drive boxes 20. Drive shaft 3 and stirring shaft 4 are connected to the agricultural machinery power output shaft in sequence through sprockets.

[0031] Seeding component array: consists of multiple independent seeding units 1, each unit including:

[0032] Seed metering box 10: Built-in perforated wheel 101, the inner wall of the perforated wheel 101 and the drive shaft 3 are symmetrically provided with locking pins 102, which are engaged with the slots 30 of the drive shaft 3.

[0033] Seed delivery pipe 11: connects the outlet of seed metering box 10 to the furrow opener.

[0034] The mobile base 12 has a built-in trencher, which is fixed at the bottom by a cross-shaped support rod 14. The upper and lower ends of the support rod 14 are fixed by hinges. The square tube structure of the connector 13 enhances the torsional resistance. The cross-shaped support rod 14 disperses the operating resistance of the trencher and reduces vibration and deviation.

[0035] The structure for adjusting line spacing is as follows:

[0036] Symmetrical guide rods 21 are arranged between drive boxes 20, and guide grooves 22 are opened on opposite sides of the guide rods 21. Guide blocks 24 are slidably arranged in the guide grooves 22.

[0037] Multiple electric actuators 23 are distributed along the branch line direction in the guide groove 22. The front end of the electric actuator 23 is fixed to the guide block 24, so that each sowing unit 1 can be adjusted individually, supporting asymmetrical row spacing layout (such as wide and narrow row mode) and improving land use efficiency.

[0038] The outer side of the connector 13 is a square tube structure that sleeves the guide rod 21, and the lower part is hinged to the support rod 14. The guide block 24 is located inside the square tube of the connector 13 and is fixedly connected to the connector 13.

[0039] The fastening mechanism is located on the connector 13 and includes a housing 5 and a wedge 51 driven by a micro cylinder 52. The wedge 51 presses against the guide rod 21 to achieve automatic locking between the connector 13 and the guide rod 21.

[0040] Displacement sensor 6: Located on the side wall of connector 13, it monitors the row spacing position in real time. Electric push rod 23, together with guide groove 22, realizes stepless linear movement of sowing unit 1. Displacement sensor 6 ensures positioning accuracy and adapts to different crop agronomic requirements.

[0041] Stirring mechanism: The stirring shaft 4 is sleeved with a lever 25. The lever 25 is used to stir the seeds and prevent them from clogging. The second locking pin 26 inside the sleeve of the lever 25 slides and engages with the second locking groove 40 on the stirring shaft 4. The sleeve of the lever 25 is locked in the seed metering box 10. The lateral movement of the seed metering box 10 does not affect the driving function of the stirring shaft 4 and the drive shaft 3.

[0042] In specific implementation cases, line spacing adjustment operations include:

[0043] The miniature cylinder 52 retracts to release the wedge 51, releasing the locking between the connector 13 and the guide rod 21. Simultaneously, it controls the electric push rod 23 in the guide grooves 22 on both sides to push the guide block 24 to slide along the guide groove 22. The electric push rod 23 drives the sowing unit 1 to move laterally. The drive shaft 3 and the stirring shaft 4 are engaged in the locking pin 102 and the locking groove 30, and the locking pin 26 and the locking groove 40, so that the driving capability is maintained during the movement of the sowing unit 1. The displacement sensor 6 feeds back the real-time position to the control system. After precise positioning, the miniature cylinder 52 drives the wedge 51 to press the guide rod 21 to fix it.

[0044] After adjustment, proceed with the sowing operation:

[0045] The tractor's power drives the drive shaft 3 and the mixing shaft 4 to rotate via the sprocket. The drive shaft 3 drives the perforated wheel 101 to rotate and dispense seeds through the slot 30. The mixing shaft 4 drives the lever 25 to stir the seeds. The seeds fall into the furrow opened by the furrow opener through the seed delivery pipe 11. The compactor covers and compacts the soil.

Claims

1. A seeder with adjustable row spacing, characterized in that, The device includes a seeding component array, a support frame (2), a drive shaft (3), and a stirring shaft (4). The seeding component array consists of several seeding units (1) and is set inside the support frame (2). The seeding unit (1) includes a seed metering box (10), a seed delivery pipe (11), and a movable base (12). The seed metering box (10) is equipped with a shaped hole wheel (101) that rotates inside. Both sides of the seed metering box (10) are equipped with connectors (13). The support frame (2) includes two sets of drive boxes (20). The drive shaft (3) and stirring shaft (4) are located between the drive boxes (20) and are rotatably connected to the drive boxes (20). The stirring shaft (4) located in the seed box (10) is slidably sleeved with a lever (25). The drive boxes (20) are symmetrically provided with guide rods (21). The guide rods (21) are provided with guide grooves (22) on opposite sides. The guide grooves (22) are provided with a number of electric push rods (23). The electric push rods (23) are provided with guide blocks (24) at the front end of the electric push rods (23) and are slidably connected to the guide grooves (22). The guide blocks (24) extend to the outside of the guide grooves (22) and are fixedly connected to the connectors (13). The outside of the connectors (13) is a square tube structure sleeved on the guide rods (21). The connectors (13) and the guide rods (21) are provided with a fastening mechanism.

2. The seeder with adjustable row spacing according to claim 1, characterized in that, The inner side of the shaped wheel (101) is symmetrically provided with a locking pin (102), the drive shaft (3) is symmetrically provided with a locking groove (30), the inner wall of the sleeve of the lever (25) is symmetrically provided with a locking pin (26), and the stirring shaft (4) is symmetrically provided with a locking groove (40).

3. The seeder with adjustable row spacing according to claim 1, characterized in that, The connector (13) is connected to a support rod (14) below, and the two support tubes form a cross and are fixed to the movable base (12).

4. A seeder with adjustable row spacing according to claim 1, characterized in that, The fastening mechanism includes a housing (5), in which a wedge (51) is slidably disposed. The wedge (51) passes through the connector (13) and contacts the guide rod (21). A miniature cylinder (52) is disposed in the housing (5) for driving the wedge (51) to move.

5. A seeder with adjustable row spacing according to claim 1, characterized in that, A displacement sensor (6) is provided on one side of the connector (13).

Images