Seeder with soil covering function

By designing the drive components and adjusting the transmission components, the problem of uneven soil covering in the seeder was solved, realizing automated continuous soil covering and sowing operations, and improving sowing quality and efficiency.

CN224178648UActive Publication Date: 2026-05-01TIBET LIMU AGRI & ANIMAL HUSBANDRY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIBET LIMU AGRI & ANIMAL HUSBANDRY TECH CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing seeders suffer from passive structure, lack of intelligent control, and the effect of soil covering is affected by travel speed. Their unreasonable structural design leads to uneven soil covering and low seeding efficiency.

Method used

The system uses a drive assembly to power the forward roller and the covering roller, and combines this with an adjustable transmission assembly to achieve automated soil covering. It also uses a resistance block to improve grip and adjusts the transmission speed to control the sowing and material feeding, thus enabling continuous sowing and soil covering operations.

Benefits of technology

This has improved the quality and efficiency of sowing, ensured full contact between seeds and soil, increased germination rate and uniform emergence, and reduced human intervention.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of seeding equipment, and particularly relates to a seeding machine with a soil covering function, which comprises a frame, an advancing roller, a soil covering roller and an adjusting transmission component, a driving shaft and a rotating shaft are arranged on the lower side of the frame and are rotatably arranged on two sides of the bottom surface of the frame, the soil covering roller is arranged on the other side in the frame and is fixedly arranged on the rotating shaft, and the adjusting transmission component is arranged on the frame. The two supporting frames are fixedly arranged on the two sides of the frame respectively, a soil breaking and sowing assembly is arranged in the frame, and the rotation output speed of the soil breaking and sowing assembly and the rotating shaft is adjusted through an adjusting transmission assembly. According to the utility model, the driving equipment on the driving assembly drives the forward roller to rotate and drives the soil covering roller to flatten the soil in the seeding furrows on the land, so that the seeds after seeding are buried, the device can realize continuous operation of automatic moving, seeding and soil covering, and the seeding quality and efficiency are improved.
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Description

Technical Field

[0001] This utility model belongs to the field of seeding equipment technology, specifically relating to a seeder with a soil covering function. Background Technology

[0002] Traditional seeders used in agricultural production currently suffer from significant technical limitations, primarily manifested in the following ways: While they can perform the basic function of furrowing and sowing, they are severely inadequate in post-sowing soil covering, achieving only shallow coverage. This extensive soil covering method results in insufficient seed-soil contact, severely impacting germination rate and seedling uniformity. Specifically, existing equipment exhibits the following technical defects: First, the soil covering device is mostly a passive structure, relying solely on the natural fall of soil to cover the seeds, unable to actively adjust the soil covering thickness and compaction; second, it lacks an intelligent soil covering control system; third, the soil covering effect is significantly affected by the travel speed, with uniformity decreasing drastically during rapid operations; fourth, the overall structural design is unreasonable, with a lack of effective linkage between the soil covering and sowing components, leading to asynchronous soil covering and sowing operations. These problems directly necessitate additional manual labor for secondary soil covering during field operations, increasing labor costs and reducing sowing efficiency, causing severe economic losses in large-scale planting. Therefore, this utility model proposes a seeder with a soil covering function to address the aforementioned technical problems. Utility Model Content

[0003] The purpose of this invention is to provide a seeder with a soil-covering function, which can solve the above-mentioned technical problems.

[0004] The specific technical solution adopted by this utility model is as follows:

[0005] This utility model provides a seeder with a soil-covering function, including a frame, a forward roller, a soil-covering roller, and an adjusting transmission assembly. A drive shaft and a rotating shaft are provided on the lower side of the frame and are rotatably mounted on both sides of the bottom surface of the frame. The forward roller is located on one side of the frame and is fixed on the drive shaft. The soil-covering roller is located on the other side of the frame and is fixed on the rotating shaft. A drive assembly is located above the forward roller and is mounted on a support frame. The support frame has two parts and is fixed on both sides of the frame respectively. A soil-breaking and sowing assembly is located inside the frame and is located between the two support frames. The rotation output speed of the soil-breaking and sowing assembly and the rotating shaft is adjusted by adjusting the transmission assembly.

[0006] The drive assembly includes a drive device, a drive main gear, a drive chain, and a drive secondary gear. The two sides of the drive chain are respectively meshed with the drive main gear and the drive secondary gear. The drive device is mounted on a fixed frame, which is mounted on a frame and a support frame. The output shaft of the drive device is connected to a reduction gear. The output shaft of the reduction gear is rotatably mounted on the support frame and is keyed to the drive main gear. The drive secondary gear is keyed to the other side of the drive shaft.

[0007] The outer periphery of the forward roller is provided with multiple equally spaced resistance-increasing blocks.

[0008] Preferably, the adjusting transmission assembly includes an adjusting chain, a pressure bar assembly, and a transmission chain. A secondary gear set and a primary gear set are provided on both sides of the adjusting chain. The pressure bar assembly is mounted on the adjusting chain. A stabilizing shaft is mounted on the rotating shaft of the support frame. The primary gear set is keyed and mounted on one side of the stabilizing shaft. The upper and lower sides of the transmission chain are respectively meshed with the primary transmission gear and the secondary transmission gear. The primary transmission gear is interference-fitted onto the rotating shaft, and the secondary transmission gear is keyed and mounted on the other side of the stabilizing shaft.

[0009] Preferably, the pressure bar assembly includes an adjusting rod, a support gear, and a clamping gear. The support gear is meshed with the adjusting chain in a supporting state. The support gear is rotatably mounted on the upper side of the linkage plate. The lower side of the linkage plate is fixed to one side of the adjusting rod. The clamping gear is located between the support gear and the main gear set and is meshed with the adjusting chain in a pressing state. The clamping gear is rotatably mounted on one side of the inclined plate. The other side of the inclined plate is fixed to the upper side of the linkage plate. The adjusting rod is slidably sleeved in the stabilizing cylinder, and the stabilizing cylinder is welded to the surface of one of the support frames. The stabilizing cylinder is threaded with a limiting screw for clamping the adjusting rod.

[0010] Preferably, the main gear set and the auxiliary gear set are in a supporting state on the same plane, and each includes three gears with a radius ratio of 0.8:1:1.2. The two sides of the adjusting chain are respectively meshed with one of the gears on the main gear set and the auxiliary gear set.

[0011] Preferably, the soil-breaking and sowing assembly includes a rotating sowing device, a soil-breaking cone, and a stabilizing rod. The rotating sowing device includes multiple devices, all of which are arranged between two support frames. The multiple rotating sowing devices are all installed on the side of the crossbar, and the crossbar is fixed between the two support frames. The multiple rotating sowing devices are all installed on the feeding shaft, which is rotatably installed on the two support frames. The secondary gear set is keyed and installed on one side of the feeding shaft.

[0012] Preferably, multiple soil-breaking cones are provided and positioned between the forward roller and the covering roller. The soil-breaking cones are welded to the lower side of the vertical rod. A stabilizing rod mounted on the frame is provided between the forward roller and the covering roller. Multiple sliding sleeves are installed on the stabilizing rod by screws. The vertical rod is installed in the sliding sleeve by screws. Multiple feeding pipes are provided between the forward roller and the covering roller in the frame. The feeding pipes are interconnected and installed between the rotating seeding device and the soil-breaking cone. The vertical rod is slidably sleeved in the sliding sleeve.

[0013] Preferably, a handrail is installed on the frame on the side corresponding to the soil covering roller, and a speed adjustment switch for controlling the drive equipment is installed on the handrail.

[0014] The beneficial effects are:

[0015] 1. This utility model uses a drive device on the drive assembly to drive the forward roller to rotate, so that the forward roller relies on the gripping force between the resistance block and the soil to move the device. At the same time, it drives the soil-breaking cone on the rotating seeding assembly to open furrows and sow seeds. Meanwhile, the soil-covering roller rotates on the soil and smooths the soil in the sowing furrows after sowing, thereby covering the seeds. In this way, the device can realize continuous operation of automatic movement-sowing-covering, thereby improving the sowing quality and efficiency.

[0016] 2. By adjusting the transmission component, this utility model enables the soil covering roller to drive the feeding shaft on the soil breaking and sowing equipment during rotation, thereby adjusting the transmission speed of the feeding shaft, achieving precise control of the sowing and feeding speed, and improving the functionality and adaptability of the device. Attached Figure Description

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

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

[0019] Figure 3 This is a schematic diagram of the structure of the adjusting transmission component of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Frame; 2. Forward roller; 21. Drive shaft; 22. Resistance block; 23. Drive auxiliary gear; 3. Covering roller; 31. Rotating shaft; 4. Support frame; 5. Adjusting transmission assembly; 51. Adjusting chain; 52. Auxiliary gear set; 53. Main gear set; 54. Stabilizing shaft; 55. Transmission auxiliary gear; 56. Transmission chain; 57. Transmission main gear; 58. Stabilizing cylinder; 59. Limiting screw; 510. Adjusting rod; 511. Linkage plate; 512. Support gear; 513. Inclined plate; 514. Pressing gear; 6. Feeding shaft; 7. Rotating seeding device; 71. Feeding pipe; 8. Soil-breaking cone; 81. Vertical rod; 9. Drive device; 10. Fixing frame; 11. Drive main gear; 12. Drive chain; 13. Reduction device; 14. Horizontal bar; 15. Stabilizing rod; 16. Handrail. Detailed Implementation

[0022] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0023] like Figure 1-3 As shown, a seeder with a soil-covering function includes a frame 1, a forward roller 2, a soil-covering roller 3, and an adjusting transmission assembly 5. A drive shaft 21 and a rotating shaft 31 are provided on the lower side of the frame 1 and are rotatably mounted on both sides of the bottom surface of the frame 1. The forward roller 2 is located on one side inside the frame 1 and is fixed on the drive shaft 21. The soil-covering roller 3 is located on the other side inside the frame 1 and is fixed on the rotating shaft 31. A drive assembly is provided above the forward roller 2 and is mounted on a support frame 4. The support frame 4 has two pieces and is fixed on both sides of the frame 1 respectively. A soil-breaking and sowing assembly is provided inside the frame 1 and is located between the two support frames 4. The rotation output speed of the soil-breaking and sowing assembly and the rotating shaft 31 is adjusted by adjusting the transmission assembly 5.

[0024] The drive assembly includes a drive device 9, a drive main gear 11, a drive chain 12, and a drive secondary gear 23. The two sides of the drive chain 12 are respectively meshed with the drive main gear 11 and the drive secondary gear 23. The drive device 9 is mounted on a fixed frame 10, which is mounted on a frame 1 and a support frame 4. The output shaft of the drive device 9 is connected to a reduction gear 13. The output shaft of the reduction gear 13 is rotatably mounted on the support frame 4 and is keyed to the drive main gear 11. The drive secondary gear 23 is keyed to the other side of the drive shaft 21. The drive device 9 uses a diesel engine, a gasoline engine, or an electric motor.

[0025] The outer periphery of the forward roller 2 is provided with multiple equally spaced friction-increasing blocks 22. The shape of the friction-increasing blocks 22 is set as an inverted V-shape, so that when the forward roller 2 rotates, the edges of the friction-increasing blocks 22 are inserted into the ground to increase the gripping force and improve the traveling effect.

[0026] As an optional implementation, the adjusting transmission assembly 5 includes an adjusting chain 51, a pressure bar assembly, and a transmission chain 56. A secondary gear set 52 and a main gear set 53 are arranged on both sides of the adjusting chain 51. The pressure bar assembly is mounted on the adjusting chain 51. A stabilizing shaft 54 ​​is mounted on the rotating shaft 31 of the support frame 4. The main gear set 53 is keyed and mounted on one side of the stabilizing shaft 54. The upper and lower sides of the transmission chain 56 are respectively meshed with the main transmission gear 57 and the secondary transmission gear 55. The main transmission gear 57 is interference-fitted onto the rotating shaft 31, and the secondary transmission gear 55 is keyed and mounted on the other side of the stabilizing shaft 54. This design allows the covering roller 3 to rotate under the drive assembly, driving the main transmission gear 57 to drive the transmission chain 56, thereby driving the transmission chain 56 to drive the secondary transmission gear 55. Simultaneously, the main gear set 53 drives the adjusting chain 51 to drive the secondary gear set 52, thus driving the soil-breaking and sowing assembly for sowing.

[0027] See attached document Figure 3 The pressure bar assembly includes an adjusting rod 510, a support gear 512, and a clamping gear 514. The support gear 512 is meshed with the adjusting chain 51 in a supporting state. The support gear 512 is rotatably mounted on the upper side of the linkage plate 511. The lower side of the linkage plate 511 is fixed to one side of the adjusting rod 510. The clamping gear 514 is located between the support gear 512 and the main gear set 53, and is meshed with the adjusting chain 51 in a pressing state. The clamping gear 514 is rotatably mounted on the inclined plate 51. On one side of the inclined plate 513, the other side is fixed to the upper side of the linkage plate 511. The adjusting rod 510 is slidably sleeved in the stabilizing cylinder 58, and the stabilizing cylinder 58 is welded to the surface of one of the support frames 4. The stabilizing cylinder 58 is threaded with a limiting screw 59 for pressing the adjusting rod 510. This design allows the adjusting rod 510 to be pressed into the stabilizing cylinder 58 by the limiting screw 59 after adjustment, thereby coordinating the speed adjustment of the main gear set 53 and the auxiliary gear set 52.

[0028] Furthermore, the main gear set 53 and the auxiliary gear set 52 are in a supporting state on the same plane, and each includes three gears with a radius ratio of 0.8:1:1.2. The two sides of the adjusting chain 51 are respectively meshed with one of the gears on the main gear set 53 and the auxiliary gear set 52. In this way, the main gear set 53 and the auxiliary gear set 52 can tighten the adjusting chain 51 after speed change by relying on the pressure bar assembly, thereby maintaining the transmission effect of the adjusting chain 51.

[0029] Furthermore, the soil-breaking and sowing assembly includes a rotating sowing device 7, a soil-breaking cone 8, and a stabilizing rod 15. The rotating sowing device 7 comprises multiple units, all of which are arranged between two support frames 4. The multiple rotating sowing devices 7 are all installed on the side of a crossbar 14, and the crossbar 14 is fixed between the two support frames 4. The multiple rotating sowing devices 7 are all installed on a feeding shaft 6, which is rotatably mounted on the two support frames 4. A secondary gear set 52 is keyed and installed on one side of the feeding shaft 6. The rotating sowing device 7 can be a seeder or other sowing equipment. This arrangement allows the feeding shaft 6 to rotate under the drive of the secondary gear set 52, thereby transmitting power to the multiple rotating sowing devices 7 and performing feeding and sowing.

[0030] Furthermore, multiple soil-breaking cones 8 are provided and positioned between the forward roller 2 and the covering roller 3. The soil-breaking cones 8 are welded to the lower side of the vertical rod 81. A stabilizing rod 15 is installed on the frame 1 between the forward roller 2 and the covering roller 3. Multiple sliding sleeves are installed on the stabilizing rod 15 by screws. The vertical rod 81 is installed in the sliding sleeves by screws. Multiple feed pipes 71 are provided between the forward roller 2 and the covering roller 3 inside the frame 1. The feed pipes 71 are interconnected and installed between the rotating seeding device 7 and the soil-breaking cones 8. The vertical rod 81 is slidably sleeved in the sliding sleeves. In this way, by tightening the screws, the distance of the lower edge of the soil-breaking cone 8 protruding from the forward roller 2 can be adjusted, thereby facilitating the soil-breaking and seeding operation.

[0031] Furthermore, a handrail 16 is installed on the side of the frame 1 corresponding to the soil covering roller 3. The handrail 16 is equipped with a speed adjustment switch for controlling the drive device 9, so that the operator can easily adjust the rotation during the forward push by pushing the handrail 16.

[0032] Using the above structure, the drive device 9 in the drive assembly provides power output, driving the forward roller 2 to rotate. The resistance-increasing blocks 22 on the outer periphery of the forward roller 2 enhance ground grip, enabling the overall movement of the device. The soil-breaking cone 8 of the synchronously driven soil-breaking and sowing assembly performs soil trenching operations, while the covering roller 3 rotates accordingly. By adjusting the transmission assembly 5, the feeding shaft 6 is driven to rotate, causing the feeding shaft 6 to drive multiple rotating sowing devices 7 to complete feeding and sowing. This allows the device to automatically complete continuous operations of forward movement, sowing, and covering during travel, effectively improving sowing quality and operational efficiency.

[0033] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. This application is mainly used to protect mechanical devices. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, are implemented according to conventional methods in the field.

Claims

1. A seeder with a soil-covering function, characterized in that: The system includes a frame (1), a forward roller (2), a soil covering roller (3), and an adjusting transmission assembly (5). The frame (1) is provided with a drive shaft (21) and a rotating shaft (31) on the lower side, and is rotatably mounted on both sides of the bottom surface of the frame (1). The forward roller (2) is located on one side inside the frame (1) and is fixed on the drive shaft (21). The soil covering roller (3) is located on the other side inside the frame (1) and is fixed on the rotating shaft (31). A drive assembly is located above the forward roller (2) and is located on a support frame (4). The support frame (4) has two pieces and is fixed on both sides of the frame (1). A soil breaking and sowing assembly is located inside the frame (1) and is located between the two support frames (4). The soil breaking and sowing assembly adjusts the rotation output speed of the rotating shaft (31) through the adjusting transmission assembly (5). The drive assembly includes a drive device (9), a drive main gear (11), a drive chain (12), and a drive secondary gear (23). The two sides of the drive chain (12) are respectively meshed with the drive main gear (11) and the drive secondary gear (23). The drive device (9) is mounted on a fixed frame (10). The fixed frame (10) is mounted on a frame (1) and a support frame (4). The output shaft of the drive device (9) is connected to a reduction device (13). The output shaft of the reduction device (13) is rotatably mounted on the support frame (4) and keyed to the drive main gear (11). The drive secondary gear (23) is keyed to the other side of the drive shaft (21). The outer periphery of the forward roller (2) is provided with multiple equally spaced resistance-increasing blocks (22).

2. A seeder with soil-covering function according to claim 1, characterized in that: The adjusting transmission assembly (5) includes an adjusting chain (51), a pressure bar assembly, and a transmission chain (56). A secondary gear set (52) and a main gear set (53) are provided on both sides of the adjusting chain (51). The pressure bar assembly is provided on the adjusting chain (51). A stabilizing shaft (54) is installed on the rotating shaft (31) of the support frame (4). The main gear set (53) is keyed and installed on one side of the stabilizing shaft (54). The upper and lower sides of the transmission chain (56) are respectively meshed with the main transmission gear (57) and the secondary transmission gear (55). The main transmission gear (57) is interference-fitted and installed on the rotating shaft (31). The secondary transmission gear (55) is keyed and installed on the other side of the stabilizing shaft (54).

3. A seeder with soil-covering function according to claim 2, characterized in that: The pressure bar assembly includes an adjusting rod (510), a support gear (512), and a clamping gear (514). The support gear (512) is meshed with the adjusting chain (51) in a supporting state. The support gear (512) is rotatably mounted on the upper side of the linkage plate (511). The lower side of the linkage plate (511) is fixed to one side of the adjusting rod (510). The clamping gear (514) is located between the support gear (512) and the main gear set (53), and is engaged with the adjusting rod (510). The link chain (51) is engaged in a downward pressing state. The clamping gear (514) is rotatably mounted on one side of the inclined plate (513). The other side of the inclined plate (513) is fixed on the upper side of the linkage plate (511). The adjusting rod (510) is slidably sleeved in the stabilizing cylinder (58), and the stabilizing cylinder (58) is welded to the surface of one of the support frames (4). The stabilizing cylinder (58) is threaded with a limiting screw (59) for clamping the adjusting rod (510).

4. A seeder with soil-covering function according to claim 3, characterized in that: The main gear set (53) and the auxiliary gear set (52) are in a supporting state on the same plane, and each includes three gears with a radius ratio of 0.8:1:1.

2. The two sides of the adjusting chain (51) are respectively meshed with one of the gears on the main gear set (53) and the auxiliary gear set (52).

5. A seeder with soil-covering function according to claim 4, characterized in that: The soil-breaking and sowing assembly includes a rotating sowing device (7), a soil-breaking cone (8), and a stabilizing rod (15). The rotating sowing device (7) includes multiple units, all of which are arranged between two support frames (4). The multiple rotating sowing devices (7) are all installed on the side of a crossbar (14), and the crossbar (14) is fixed between the two support frames (4). The multiple rotating sowing devices (7) are all installed on a feeding shaft (6), which is rotatably installed on the two support frames (4). The secondary gear set (52) is keyed and installed on one side of the feeding shaft (6).

6. A seeder with soil-covering function according to claim 5, characterized in that: Multiple soil-breaking cones (8) are provided and positioned between the forward roller (2) and the covering roller (3). The soil-breaking cones (8) are welded to the lower side of the vertical rod (81). A stabilizing rod (15) is provided between the forward roller (2) and the covering roller (3) and mounted on the frame (1). Multiple sliding sleeves are installed on the stabilizing rod (15) by screws. The vertical rod (81) is installed in the sliding sleeve by screws. Multiple feed pipes (71) are provided between the forward roller (2) and the covering roller (3) in the frame (1). The feed pipes (71) are interconnected and installed between the rotating seeding device (7) and the soil-breaking cones (8). The vertical rod (81) is slidably sleeved in the sliding sleeve.

7. A seeder with soil-covering function according to claim 6, characterized in that: A handrail (16) is installed on the frame (1) on the side corresponding to the soil covering roller (3), and a speed adjustment switch for controlling the drive device (9) is installed on the handrail (16).