A chain type seed metering device with adjustable seeding depth and row spacing

Abstract

The utility model discloses a chain type seed metering device with adjustable seeding depth and row distance belongs to agricultural seeding mechanical technical field, and it includes mobile bottom plate, is seted with mobile groove on mobile bottom plate, and both sides inner wall on mobile groove are all fixedly connected with limit strip. The utility model sets up limit strip, moving block, transmission pin, support plate, chain type seed metering machine body and interval adjusting assembly, and every moving block top is fixedly connected with chain type seed metering machine body through support plate, and interval adjusting assembly can drive corresponding moving block to move through corresponding transmission pin, makes the interval synchronous regulation of multiple pairs of adjacent moving blocks, and moving block slides between a pair of limit strips, and moving block drives chain type seed metering machine body common movement through support plate, thereby realizes the adjustment of the interval of multiple chain type seed metering machine bodies, adapts the row distance demand of different crops, and guarantees that crop has enough growth space.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural seeding machinery technology, specifically a chain-type seed metering device with adjustable seeding depth and row spacing. Background Technology

[0002] The chain-type seed metering device is the core working component of the seeder. The chain is the key transmission and load-bearing structure. The chain links are often designed with grooves, holes or claws. Through the uniform rotation of the chain, the seeds are accurately picked up and transported to the seed metering port, which can realize quantitative and fixed-distance seed metering.

[0003] The existing chain-type seed metering device still has the following shortcomings: the spacing adjustment of the existing seed metering device is relatively troublesome, the furrowing plow and the seed metering device have no linkage adjustment design, and after the spacing of the seed metering device is adjusted, the furrowing plow needs to be disassembled and reinstalled to match the row spacing. The operation is cumbersome and the furrowing and seed metering positions are prone to misalignment. Moreover, the furrowing depth cannot be flexibly adapted to soil moisture and seed size. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a chain-type seed metering device with adjustable sowing depth and row spacing, which solves the problems existing in the existing chain-type seed metering devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a chain-type seed metering device with adjustable sowing depth and row spacing, comprising a movable base plate, a movable groove formed on the movable base plate, limit strips fixedly connected to the inner walls on both sides of the movable groove, a plurality of movable blocks slidably connected between a pair of limit strips, a pair of support plates fixedly connected to the top of each movable block, a chain-type seed metering machine body fixedly connected between a pair of support plates, a transmission pin fixedly connected to the bottom of each movable block, a spacing adjustment component provided at the bottom of the movable base plate, a connecting block fixedly connected to one side of the chain-type seed metering machine body, a lifting rod slidably connected to the connecting block, a furrowing plow fixedly connected to the bottom of the lifting rod, and a lifting component provided at the top of the movable base plate.

[0006] As a further embodiment of this utility model: the spacing adjustment component includes a protective cover, which is fixedly connected to the bottom of the movable base plate. A motor is fixedly connected to one side of the protective cover. The output end of the motor passes through the protective cover and is rotatably connected to it. A first threaded rod is coaxially fixedly connected to the output end of the motor. One end of the first threaded rod is rotatably connected to the protective cover. A first nut is threaded onto the first threaded rod. A slotted plate is fixedly connected to the top of the first nut. Multiple transmission slots are provided on the slotted plate. Each transmission slot is adapted to a corresponding transmission pin. A slider is fixedly connected to both sides of the slotted plate. A guide rod is slidably connected to the slider. Both ends of the guide rod are fixedly connected to the inner wall of the protective cover.

[0007] As a further embodiment of this utility model: the lifting assembly includes a second threaded rod and a pair of guide rails. The second threaded rod is rotatably connected to the top of the movable base plate. The pair of guide rails are both fixedly connected to the top of the movable base plate. Lifting blocks are slidably connected to each pair of guide rails. A connecting rod is fixedly connected between the pair of lifting blocks. Multiple driving blocks are slidably connected to the connecting rod. The bottom of each driving block is fixedly connected to the corresponding lifting rod. A second nut is threadedly connected to the second threaded rod. One side of the second nut is fixedly connected to one of the driving blocks. A handwheel is coaxially fixedly connected to the top of the second threaded rod.

[0008] As a further embodiment of this utility model: a pair of rotating seats are fixedly connected to one side of the movable base plate, and a traction frame is rotatably connected to the pair of rotating seats.

[0009] As a further embodiment of this utility model: a waist-shaped groove is provided on the movable base plate, and the waist-shaped groove is adapted to the lifting rod.

[0010] As a further embodiment of this utility model, a through groove is provided on the movable base plate.

[0011] As a further embodiment of this utility model: two pairs of mounting seats are fixedly connected to the bottom of the movable base plate, and each mounting seat is rotatably connected to a movable wheel.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model is equipped with limit bars, moving blocks, transmission pins, support plates, chain-type seed metering machine bodies, and spacing adjustment components. The top of each moving block is fixedly connected to the chain-type seed metering machine body through the support plate. The spacing adjustment components can drive the corresponding moving blocks to move through the corresponding transmission pins, so that the spacing of multiple pairs of adjacent moving blocks can be adjusted synchronously. The moving blocks slide between a pair of limit bars. The moving blocks drive the chain-type seed metering machine bodies to move together through the support plates, thereby realizing the adjustment of the spacing of multiple chain-type seed metering machine bodies, adapting to the row spacing requirements of different crops, and ensuring that crops have sufficient growth space.

[0014] 2. This utility model is equipped with a connecting block, a lifting rod, a furrowing plow, and a lifting assembly. When the spacing of the chain-type seed metering machine body is adjusted, the chain-type seed metering machine body drives the lifting rod to move together through the connecting block. The lifting rod drives the furrowing plow to adjust the spacing simultaneously. After the spacing is adjusted, the lifting assembly can drive the lifting rod to slide on the connecting block to adjust the height of the furrowing plow. The sowing depth can be flexibly adjusted according to the soil moisture and seed size to ensure sowing quality. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the main structure of the chain-type seed metering machine of this utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the movable base plate and the protective cover of this utility model.

[0019] Figure 5 This is a schematic diagram of the protective cover and groove plate structure of this utility model;

[0020] Figure 6 This is a partial structural diagram of the spacing adjustment component of this utility model;

[0021] Figure 7 This is a schematic diagram of the lifting component structure of this utility model.

[0022] In the diagram: 1. Movable base plate; 2. Movable groove; 3. Limiting strip; 4. Movable block; 5. Support plate; 6. Chain-type seed metering machine body; 7. Transmission pin; 8. Connecting block; 9. Lifting rod; 10. Furrowing plow; 11. Protective cover; 12. Motor; 13. First threaded rod; 14. First nut; 15. Groove plate; 16. Transmission groove; 17. Sliding block; 18. Guide rod; 19. Second threaded rod; 20. Guide rail; 21. Lifting block; 22. Connecting rod; 23. Drive block; 24. Second nut; 25. Handwheel; 26. Traction frame; 27. Waist-shaped groove; 28. Through groove; 29. ​​Mounting base; 30. Movable wheel. Detailed Implementation

[0023] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0024] like Figures 1-7 As shown, this utility model provides a technical solution:

[0025] A chain-type seed metering device with adjustable sowing depth and row spacing includes a movable base plate 1, a movable groove 2 on the movable base plate 1, limit strips 3 fixedly connected to the inner walls on both sides of the movable groove 2, a plurality of movable blocks 4 slidably connected between a pair of limit strips 3, a pair of support plates 5 fixedly connected to the top of each movable block 4, a chain-type seed metering machine body 6 fixedly connected between a pair of support plates 5, a transmission pin 7 fixedly connected to the bottom of the movable block 4, a spacing adjustment component provided at the bottom of the movable base plate 1, a connecting block 8 fixedly connected to one side of the chain-type seed metering machine body 6, a lifting rod 9 slidably connected to the connecting block 8, a furrowing plow 10 fixedly connected to the bottom of the lifting rod 9, and a lifting component provided at the top of the movable base plate 1.

[0026] Specifically, the spacing adjustment component can drive the corresponding moving block 4 to move through the corresponding transmission pin 7, so that the spacing of multiple pairs of adjacent moving blocks 4 can be adjusted synchronously. The moving block 4 slides between a pair of limit bars 3. The moving block 4 drives the chain seed metering machine body 6 to move together through the support plate 5, thereby realizing the adjustment of the spacing of multiple chain seed metering machine bodies 6, adapting to the row spacing requirements of different crops, and ensuring that the crops have enough growing space. At the same time, the chain seed metering machine body 6 drives the lifting rod 9 to move together through the connecting block 8. The lifting rod 9 drives the furrowing plow 10 to adjust the spacing synchronously. After the spacing adjustment is completed, the lifting component can drive the lifting rod 9 to slide on the connecting block 8 to adjust the height of the furrowing plow 10. The sowing depth can be flexibly adjusted according to the soil moisture and seed size to ensure the sowing quality.

[0027] The spacing adjustment assembly includes a protective cover 11, which is fixedly connected to the bottom of the movable base plate 1. A motor 12 is fixedly connected to one side of the protective cover 11. The output end of the motor 12 passes through the protective cover 11 and is rotatably connected to it. A first threaded rod 13 is coaxially fixedly connected to the output end of the motor 12. One end of the first threaded rod 13 is rotatably connected to the protective cover 11. A first nut 14 is threadedly connected to the first threaded rod 13. A slotted plate 15 is fixedly connected to the top of the first nut 14. Multiple transmission slots 16 are opened on the slotted plate 15. Each transmission slot 16 is adapted to a corresponding transmission pin 7. A slider 17 is fixedly connected to both sides of the slotted plate 15. A guide rod 18 is slidably connected to the slider 17. Both ends of the guide rod 18 are fixedly connected to the inner wall of the protective cover 11.

[0028] Specifically, with the central axis of the slot plate 15 as the axis of symmetry, the transmission slots 16 on both sides are mirror-distributed. The projection lengths of the transmission slots 16 on both sides on the central axis of the slot plate 15 are the same, and the transmission slots 16 farther from the central axis of the slot plate 15 have a larger angle with the moving direction of the slot plate 15. When the motor 12 is started, the output end of the motor 12 drives the first threaded rod 13 to rotate. The first threaded rod 13 drives the slot plate 15 to move through the first nut 14. The slot plate 15 slides along the guide rod 18 through the slider 17. The multiple transmission slots 16 on the slot plate 15 can force the corresponding transmission pins 7 to move.

[0029] The lifting assembly includes a second threaded rod 19 and a pair of guide rails 20. The second threaded rod 19 is rotatably connected to the top of the movable base plate 1. The pair of guide rails 20 are both fixedly connected to the top of the movable base plate 1. Lifting blocks 21 are slidably connected to each of the pair of guide rails 20. A connecting rod 22 is fixedly connected between the pair of lifting blocks 21. Multiple drive blocks 23 are slidably connected to the connecting rod 22. The bottom of each drive block 23 is fixedly connected to the corresponding lifting rod 9. A second nut 24 is threadedly connected to the second threaded rod 19. One side of the second nut 24 is fixedly connected to one of the drive blocks 23. A handwheel 25 is coaxially fixedly connected to the top of the second threaded rod 19.

[0030] Specifically, the lifting rod 9 drives the corresponding drive block 23 to slide along the connecting rod 22, and drives the second threaded rod 19 to rotate through the handwheel 25. The second threaded rod 19 drives one of the drive blocks 23 to descend through the second nut 24. The drive block 23 drives the connecting rod 22 to descend. The lifting blocks 21 at both ends of the connecting rod 22 slide down along the corresponding guide rail 20. The connecting rod 22 drives the lifting rod 9 to descend through the drive block 23.

[0031] A pair of rotating seats are fixedly connected to one side of the movable base plate 1. A traction frame 26 is rotatably connected to the pair of rotating seats. Two pairs of mounting seats 29 are fixedly connected to the bottom of the movable base plate 1. A movable wheel 30 is rotatably connected to each mounting seat 29.

[0032] Specifically, the traction frame 26 is used to connect with the traction equipment, thereby driving the movable base plate 1 to move. The movable base plate 1 moves via the movable wheels 30 on the mounting base 29.

[0033] The movable base plate 1 has an oblong groove 27, which is adapted to the lifting rod 9. The movable base plate 1 also has a through groove 28.

[0034] Specifically, the lifting rod 9 can slide freely in the waist-shaped groove 27, and the through groove 28 on the movable base plate 1 can allow the seeding port at the bottom of the chain-type seed metering machine body 6 to pass through.

[0035] The working principle of this utility model is as follows:

[0036] When the motor 12 is started, the output end of the motor 12 drives the first threaded rod 13 to rotate. The first threaded rod 13 drives the groove plate 15 to move through the first nut 14. The groove plate 15 slides along the guide rod 18 through the slider 17. The multiple transmission grooves 16 on the groove plate 15 can force the corresponding transmission pins 7 to move. The corresponding transmission pins 7 drive the corresponding moving blocks 4 to move, so that the spacing of multiple pairs of adjacent moving blocks 4 is adjusted synchronously. The moving blocks 4 slide between a pair of limit bars 3. The moving blocks 4 drive the chain seed metering machine body 6 to move together through the support plate 5, thereby realizing the adjustment of the spacing of multiple chain seed metering machine bodies 6, adapting to the row spacing requirements of different crops, and ensuring that the crops have enough growing space.

[0037] Simultaneously, the chain-type seed metering machine body 6 drives the lifting rod 9 to move together via the connecting block 8. The lifting rod 9 drives the corresponding drive block 23 to slide along the connecting rod 22. The lifting rod 9 also drives the furrowing plow 10 to adjust the spacing synchronously. After the spacing adjustment is completed, the handwheel 25 drives the second threaded rod 19 to rotate. The second threaded rod 19 drives one of the drive blocks 23 to descend via the second nut 24. The drive block 23 drives the connecting rod 22 to descend. The lifting blocks 21 at both ends of the connecting rod 22 slide down along the corresponding guide rail 20. The connecting rod 22 drives the lifting rod 9 to descend via the drive block 23. The lifting rod 9 slides on the connecting block 8 to adjust the height of the furrowing plow 10. The sowing depth can be flexibly adjusted according to the soil moisture and seed size to ensure sowing quality.

[0038] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A chain-type seed metering device with adjustable sowing depth and row spacing, comprising a movable base plate (1), characterized in that: The movable base plate (1) is provided with a movable groove (2). Limiting strips (3) are fixedly connected to the inner walls on both sides of the movable groove (2). Multiple movable blocks (4) are slidably connected between a pair of limiting strips (3). A pair of support plates (5) are fixedly connected to the top of each movable block (4). A chain-type seed metering machine body (6) is fixedly connected between a pair of support plates (5). A transmission pin (7) is fixedly connected to the bottom of the movable block (4). A spacing adjustment component is provided at the bottom of the movable base plate (1). A connecting block (8) is fixedly connected to one side of the chain-type seed metering machine body (6). A lifting rod (9) is slidably connected to the connecting block (8). A furrowing plow (10) is fixedly connected to the bottom of the lifting rod (9). A lifting component is provided at the top of the movable base plate (1).

2. The chain-type seed metering device with adjustable sowing depth and row spacing according to claim 1, characterized in that: The spacing adjustment assembly includes a protective cover (11), which is fixedly connected to the bottom of the movable base plate (1). A motor (12) is fixedly connected to one side of the protective cover (11). The output end of the motor (12) passes through the protective cover (11) and is rotatably connected to it. A first threaded rod (13) is coaxially fixedly connected to the output end of the motor (12). One end of the first threaded rod (13) is rotatably connected to the protective cover (11). A first nut (14) is threaded onto the first threaded rod (13). A slotted plate (15) is fixedly connected to the top of the first nut (14). Multiple transmission slots (16) are provided on the slotted plate (15). Each transmission slot (16) is adapted to a corresponding transmission pin (7). A slider (17) is fixedly connected to both sides of the slotted plate (15). A guide rod (18) is slidably connected to the slider (17). Both ends of the guide rod (18) are fixedly connected to the inner wall of the protective cover (11).

3. A chain-type seed metering device with adjustable sowing depth and row spacing according to claim 2, characterized in that: The lifting assembly includes a second threaded rod (19) and a pair of guide rails (20). The second threaded rod (19) is rotatably connected to the top of the movable base plate (1). The pair of guide rails (20) are fixedly connected to the top of the movable base plate (1). Lifting blocks (21) are slidably connected to the pair of guide rails (20). A connecting rod (22) is fixedly connected between the pair of lifting blocks (21). Multiple driving blocks (23) are slidably connected to the connecting rod (22). The bottom of each driving block (23) is fixedly connected to the corresponding lifting rod (9). A second nut (24) is threadedly connected to the second threaded rod (19). One side of the second nut (24) is fixedly connected to one of the driving blocks (23). A handwheel (25) is coaxially fixedly connected to the top of the second threaded rod (19).

4. A chain-type seed metering device with adjustable sowing depth and row spacing according to claim 3, characterized in that: A pair of rotating seats are fixedly connected to one side of the movable base plate (1), and a traction frame (26) is rotatably connected to the pair of rotating seats.

5. A chain-type seed metering device with adjustable sowing depth and row spacing according to claim 4, characterized in that: The movable base plate (1) is provided with a waist-shaped groove (27), which is adapted to the lifting rod (9).

6. A chain-type seed metering device with adjustable sowing depth and row spacing according to claim 5, characterized in that: A through groove (28) is provided on the movable base plate (1).

7. A chain-type seed metering device with adjustable sowing depth and row spacing according to claim 6, characterized in that: The bottom of the movable base plate (1) is fixedly connected to two pairs of mounting seats (29), and each mounting seat (29) is rotatably connected to a movable wheel (30).

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