Efficient semi-automatic yam harvesting machine

By designing a semi-automatic yam harvester, which uses a motor-driven pulley and auger system to loosen and separate the soil, the problem of high labor intensity and low efficiency in traditional yam harvesting is solved, achieving efficient and automated harvesting that is suitable for large-scale planting.

CN224329968UActive Publication Date: 2026-06-09李杰

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
李杰
Filing Date
2025-07-16
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Traditional yam harvesting is labor-intensive and inefficient, and existing machinery and equipment are poorly adaptable, complex to operate, and costly, making it difficult to meet the needs of large-scale yam planting areas.

Method used

A semi-automatic yam harvester was designed, comprising a soil loosening mechanism, a soil conveying mechanism, and a moving mechanism. It utilizes a motor-driven pulley and auger system to loosen and separate the soil, and combines a guiding mechanism to achieve precise control and automatic movement, thereby reducing labor intensity and improving harvesting efficiency.

Benefits of technology

It achieves highly efficient automation in yam harvesting, reduces labor intensity, improves harvesting efficiency and safety, is suitable for large-scale planting areas, and keeps the field clean.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a yam harvesting machine technical field discloses a kind of efficient semi-automatic yam harvesting machines, including support, vertical groove board, the vertical groove board is fixedly connected on support, and the vertical groove board is equipped with loosening and tilling mechanism for carrying out loosening and tilling operation.This utility model, by first motor, driving shaft, belt pulley group, driving link and slide plate assembly, and vibration steel plate, the soil on the both sides of yam can be uniformly vibrated loosening and tilling, avoid manual excavation, reduce the labor intensity of farmer, also significantly improve the harvesting efficiency and operation safety, applicable to large-scale yam planting area popularization and use, simultaneously send soil mechanism includes bevel gear transmission system, vertical auger and horizontal auger, loose soil can be transported and discharged from yam root upwards, realize the effective separation of soil and yam, avoid the problem that soil accumulation affects harvesting efficiency in traditional manual excavation process, improve the automation level.
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Description

Technical Field

[0001] This utility model relates to the field of yam harvesting machine technology, and in particular to a high-efficiency semi-automatic yam harvesting machine. Background Technology

[0002] In traditional agricultural production, yam harvesting has always been a labor-intensive task, mainly relying on manual digging. This method is not only labor-intensive and inefficient, but also easily damages the yams, affecting their commercial value and market competitiveness. With the development of agricultural mechanization, although some mechanical equipment for harvesting root and tuber crops has appeared on the market, these devices often suffer from poor adaptability, complex operation, and high costs, making it difficult to meet the actual needs of large-scale yam cultivation areas.

[0003] The main problems in the traditional yam harvesting process include: manual digging requires a lot of manpower, especially during the harvest season when the demand for labor is even more prominent; manual digging is slow and cannot meet the needs of rapid harvesting, especially in large-scale planting, which greatly limits production efficiency; the accumulation of soil after digging will affect subsequent work processes and is not conducive to keeping the field clean. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a highly efficient semi-automatic yam harvesting machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency semi-automatic yam harvester, comprising a support frame and a vertical trough plate, wherein the vertical trough plate is fixedly connected to the support frame and a soil loosening mechanism for performing soil loosening operations is installed on the vertical trough plate.

[0006] The soil loosening mechanism includes a first motor fixedly connected to a vertical trough plate. A drive shaft is fixedly connected to the output end of the first motor. A first pulley is fixedly connected through the drive shaft, and a first transmission belt is meshed with the first pulley. A second pulley is meshed with the end of the first transmission belt away from the first pulley. A drive shaft is fixedly connected through the second pulley and rotatably connected to the vertical trough plate. A drive connecting rod is fixedly connected to the end of the drive shaft away from the second pulley. A drive connecting rod is hinged to the drive connecting rod. Slide plates are provided at both ends of the vertical trough plate. The end of the drive connecting rod away from the drive connecting rod is hinged to the slide plate at the upper end of the vertical trough plate. Connecting rods are fixedly connected to both slide plates, and a steel plate for vibrating and loosening the soil on both sides of the yam is fixedly connected to the end of the connecting rod away from the slide plate.

[0007] As a further description of the above technical solution:

[0008] The vertical groove plate has grooved slide rods fixedly connected to its upper and lower ends. The grooved slide rods limit and guide the movement of the slide plate through a grooved slider that is slidably connected. At the same time, the end of the grooved slider away from the grooved slide rod is fixedly connected to the slide plate.

[0009] As a further description of the above technical solution:

[0010] A spring for providing reset power is fixed to the slide plate at the upper end of the vertical groove plate, and the end of the spring away from the slide plate is fixed to the groove-shaped slide rod at the lower end of the vertical groove plate.

[0011] As a further description of the above technical solution:

[0012] The drive shaft is equipped with a soil conveying mechanism for lifting and discharging loose soil. The soil conveying mechanism includes a drive bevel gear, which is fixedly connected to the drive shaft. A driven bevel gear is meshed with the drive bevel gear, and a connecting shaft is fixedly connected to the driven bevel gear. The connecting shaft is mounted on the vertical trough plate via a connecting rod, and the connecting rod is rotatably connected to the connecting shaft. A vertical auger for lifting and transporting soil is fixedly connected to the end of the connecting shaft away from the driven bevel gear. A connecting plate is fixedly connected to the bottom of the vertical trough plate, and a second motor is fixedly connected to the end of the connecting plate away from the vertical trough plate. A horizontal auger for transporting soil laterally is fixedly connected to the output end of the second motor.

[0013] As a further description of the above technical solution:

[0014] An extension rod is fixedly connected to the bracket, and a guide mechanism for directional guidance of the device is installed at the end of the extension rod away from the bracket. The guide mechanism includes a central shaft, which is fixedly connected to the extension rod, and both ends of the central shaft are rotatably connected to a hemisphere. A limit rod is fixedly connected to the end of the extension rod near the hemisphere.

[0015] As a further description of the above technical solution:

[0016] The bracket is equipped with a moving mechanism for driving the device to move. The moving mechanism includes a third motor. The output end of the third motor is fixedly connected to a third pulley, and a second transmission belt is meshed on the third pulley. At the same time, a fourth pulley is meshed on the end of the second transmission belt away from the third pulley. A rear drive shaft is fixedly connected through the fourth pulley, and rollers for moving the device are fixedly connected to both ends of the rear drive shaft. A limit plate is rotatably connected through the rear drive shaft, and the limit plate is fixedly connected to the bottom of the bracket.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, the soil on both sides of the yam can be evenly vibrated and loosened by a first motor, drive shaft, pulley assembly, active connecting rod and slide plate assembly, and vibrating steel plate, avoiding manual digging, reducing the labor intensity of farmers, and significantly improving harvesting efficiency and operational safety. It is suitable for promotion and use in large-scale yam planting areas. At the same time, the soil conveying mechanism includes a bevel gear transmission system, a vertical auger and a horizontal auger, which can transport and discharge the loosened soil from the root of the yam upwards, realizing the effective separation of soil and yam, avoiding the problem of soil accumulation affecting harvesting efficiency during traditional manual digging, and improving the level of automation.

[0019] 2. In this utility model, the guiding mechanism uses a combination of a central rod, a hemisphere, and a limiting rod to achieve precise control of the machine's direction of travel, facilitating flexible operation in complex field terrain. Furthermore, the moving mechanism uses a third motor to drive the pulley and the rear drive shaft, which in turn drives the rollers forward, thereby enabling the harvesting device to move automatically and improving the efficiency of yam harvesting. Attached Figure Description

[0020] Figure 1 This utility model proposes a three-dimensional, highly efficient semi-automatic yam harvesting machine. Figure 1 ;

[0021] Figure 2 This utility model proposes a three-dimensional, highly efficient semi-automatic yam harvesting machine. Figure 2 ;

[0022] Figure 3 This utility model proposes a three-dimensional, highly efficient semi-automatic yam harvesting machine. Figure 3 ;

[0023] Figure 4 A bottom view of a highly efficient semi-automatic yam harvester proposed in this utility model;

[0024] Figure 5 for Figure 1 Enlarged view of point A in the middle;

[0025] Figure 6 for Figure 2 Enlarged view of point B in the middle;

[0026] Figure 7 for Figure 3 A magnified view of point C in the middle.

[0027] Legend:

[0028] 1. Support frame; 2. Vertical trough plate; 3. Soil loosening mechanism; 31. First motor; 32. Drive shaft; 33. First pulley; 34. First transmission belt; 35. Second pulley; 36. Drive shaft; 37. Drive link; 38. Drive link; 39. Slide plate; 310. Connecting rod; 311. Steel plate; 312. Grooved slide bar; 313. Grooved slider; 314. Spring; 4. Soil feeding mechanism; 41. Drive bevel gear 42. Driven bevel gear; 43. Connecting shaft; 44. Vertical auger; 45. Connecting plate; 46. Second motor; 47. Horizontal auger; 5. Extension rod; 6. Guide mechanism; 61. Shaft rod; 62. Hemisphere; 63. Limiting rod; 7. Moving mechanism; 71. Third motor; 72. Third pulley; 73. Second transmission belt; 74. Fourth pulley; 75. Rear drive shaft; 76. Roller; 77. Limiting plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: Please refer to Figure 1-7 One embodiment of this utility model is a highly efficient semi-automatic yam harvester, which includes a support 1 and a vertical trough plate 2. The vertical trough plate 2 is fixed to the support 1, and a soil loosening mechanism 3 for loosening soil operation is installed on the vertical trough plate 2.

[0031] The soil loosening mechanism 3 includes a first motor 31, which is fixedly connected to the vertical trough plate 2. A drive shaft 32 is fixedly connected to the output end of the first motor 31. A first pulley 33 is fixedly connected through the drive shaft 32, and a first transmission belt 34 is meshed with the first pulley 33. A second pulley 35 is meshed with the end of the first transmission belt 34 away from the first pulley 33. A drive shaft 36 is fixedly connected through the second pulley 35 and rotatably connected to the vertical trough plate 2. The end of the drive shaft 36 away from the second pulley 35... A drive link 37 is fixedly connected, and an active link 38 is hinged to the drive link 37. At the same time, the upper and lower ends of the vertical trough plate 2 are provided with slide plates 39. The end of the active link 38 away from the drive link 37 is hinged to the slide plate 39 at the upper end of the vertical trough plate 2. A connecting rod 310 is fixedly connected to the two sets of slide plates 39. The end of the connecting rod 310 away from the slide plate 39 is fixedly connected to a steel plate 311 for vibrating and loosening the soil on both sides of the yam. Furthermore, seventeen 15 cm long steel strips are provided on the steel plate 311, spaced 10 cm apart. A 6 mm silicone rod is fitted on the steel strip to prevent scratching the yam (not shown in the figure).

[0032] Working principle: First, the equipment is installed in the field furrows. Then, the third motor 71 is started. The output of the third motor 71 drives the third pulley 72 to rotate. The rotation of the third pulley 72 drives the second transmission belt 73 to rotate. The rotation of the second transmission belt 73 drives the fourth pulley 74 to rotate. The rotation of the fourth pulley 74 drives the rear drive shaft 75 to rotate. The rotation of the rear drive shaft 75 drives the roller 76 to rotate. The rotation of the roller 76 moves the device. At the same time, the first motor 31 is started. The output of the first motor 31 drives the drive shaft 32 to rotate. The first pulley 33 on the drive shaft 32 transmits power to the second pulley 35 through the first transmission belt 34. The second pulley 35 drives the drive shaft 36 to rotate. The rotation of the drive shaft 36 drives the drive connecting rod 37 to rotate. The rotation of the drive connecting rod 37 drives the drive shaft 36 to rotate. Linkage 38 pulls and pushes slide plate 39 to slide up and down in vertical groove plate 2. Slide plate 39 drives connecting rod 310 to move, and finally pushes steel plate 311 to vibrate and loosen the soil on both sides of the yam. Then, the second motor 46 is started. The output end of the second motor 46 drives the horizontal auger 47 to rotate, and discharges the loosened soil horizontally and transports it to the vertical auger 44. Then, the rotation of the drive shaft 32 drives the drive bevel gear 41 to rotate. The drive bevel gear 41 rotates, which drives the driven bevel gear 42 to rotate. The driven bevel gear 42 rotates, which drives the connecting shaft 43 to rotate. The connecting shaft 43 rotates, which drives the vertical auger 44 to rotate. The vertical auger 44 rotates and discharges the soil upward, realizing the separation of the soil around the yam root. Next, the soil around the yam is loosened by vibration at the bottom of the yam groove, exposing the upper part of the yam, which can then be pulled out manually.

[0033] In a preferred embodiment, grooved slide rods 312 are fixedly connected to the upper and lower ends of the vertical groove plate 2, and the grooved slide rods 312 limit and guide the movement of the slide plate 39 through the grooved slider 313 which is slidably connected. At the same time, the end of the grooved slider 313 away from the grooved slide rods 312 is fixedly connected to the slide plate 39.

[0034] like Figure 6 As shown: There are four sets of grooved slide rods 312 and grooved sliders 313. Every two sets of grooved slide rods 312 are installed at the upper and lower ends of the vertical groove plate 2, and every two sets of grooved sliders 313 are installed at both ends of a set of slide plates 39.

[0035] In a preferred embodiment, a spring 314 for providing reset power is fixedly connected to the slide plate 39 at the upper end of the vertical groove plate 2, and the end of the spring 314 away from the slide plate 39 is fixedly connected to the grooved slide rod 312 at the lower end of the vertical groove plate 2.

[0036] like Figure 6 As shown: Spring 314 is located between the two sets of slide plates 39, and spring 314 provides a restoring force so that the loosening component can return to its original position after movement, forming a continuous and stable vibration effect.

[0037] In a preferred embodiment, a soil conveying mechanism 4 for lifting and discharging loose soil is installed on the drive shaft 32. The soil conveying mechanism 4 includes a drive bevel gear 41, which is fixedly connected to the drive shaft 32. A driven bevel gear 42 is meshed on the drive bevel gear 41, and a connecting shaft 43 is fixedly connected to the driven bevel gear 42. The connecting shaft 43 is mounted on the vertical trough plate 2 via a connecting rod 310, which is rotatably connected to the connecting shaft 43. A vertical auger 44 for lifting and transporting soil is fixedly connected to the end of the connecting shaft 43 away from the driven bevel gear 42. A connecting plate 45 is fixedly connected to the bottom of the vertical trough plate 2, and a second motor 46 is fixedly connected to the end of the connecting plate 45 away from the vertical trough plate 2. A horizontal auger 47 for horizontal transporting soil is fixedly connected to the output end of the second motor 46.

[0038] like Figure 4 As shown: the vertical auger 44 is located directly above the horizontal auger 47, and the horizontal auger 47 is inclined at the bottom of the vertical trough plate 2.

[0039] In a preferred embodiment, an extension rod 5 is fixedly connected to the bracket 1, and a guide mechanism 6 for directional guidance of the device is installed at the end of the extension rod 5 away from the bracket 1. The guide mechanism 6 includes a spindle 61, which is fixedly connected to the extension rod 5, and a hemisphere 62 is rotatably connected to both ends of the spindle 61. Meanwhile, a limit rod 63 is fixedly connected to the end of the extension rod 5 near the hemisphere 62.

[0040] like Figure 1As shown: the diameter of hemisphere 62 is 40 cm, and the two sets of hemispheres 62 are located on both sides of the yam ridge.

[0041] In a preferred embodiment, a moving mechanism 7 for driving the device to move is installed on the bracket 1. The moving mechanism 7 includes a third motor 71. The output end of the third motor 71 is fixedly connected to a third pulley 72. A second transmission belt 73 is meshed on the third pulley 72. At the same time, a fourth pulley 74 is meshed on the end of the second transmission belt 73 away from the third pulley 72. A rear drive shaft 75 is fixedly connected through the fourth pulley 74. Rollers 76 for moving the device are fixedly connected to both ends of the rear drive shaft 75. A limit plate 77 is rotatably connected through the rear drive shaft 75 and is fixedly connected to the bottom of the bracket 1.

[0042] like Figure 4 As shown: Roller 76 has anti-slip texture to prevent slipping when moving the yam ridge.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency semi-automatic yam harvester, comprising a support frame (1) and a vertical trough plate (2), wherein the vertical trough plate (2) is fixedly connected to the support frame (1), characterized in that: The vertical trough plate (2) is equipped with a soil loosening mechanism (3) for loosening soil operations; The soil loosening mechanism (3) includes a first motor (31), which is fixedly connected to the vertical trough plate (2). A drive shaft (32) is fixedly connected to the output end of the first motor (31). A first pulley (33) is fixedly connected through the drive shaft (32), and a first transmission belt (34) is meshed with the first pulley (33). A second pulley (35) is meshed with the end of the first transmission belt (34) away from the first pulley (33). A drive shaft (36) is fixedly connected through the second pulley (35), and the drive shaft (36) is rotatably connected to the vertical trough plate (2). On the vertical groove plate (2), a drive link (37) is fixedly connected to one end of the active rotating shaft (36) away from the second pulley (35). An active link (38) is hinged to the drive link (37). Slide plates (39) are provided at the upper and lower ends of the vertical groove plate (2). The end of the active link (38) away from the drive link (37) is hinged to the slide plate (39) at the upper end of the vertical groove plate (2). A connecting rod (310) is fixedly connected to the two sets of slide plates (39). A steel plate (311) for vibrating and loosening the soil on both sides of the yam is fixedly connected to the end of the connecting rod (310) away from the slide plate (39).

2. The efficient semi-automatic yam harvester according to claim 1, characterized in that: The vertical groove plate (2) is fixedly connected to the upper and lower ends of the grooved slide rod (312), and the grooved slide rod (312) limits and guides the movement of the slide plate (39) through the slidably connected grooved slider (313). At the same time, the end of the grooved slider (313) away from the grooved slide rod (312) is fixedly connected to the slide plate (39).

3. The efficient semi-automatic yam harvester according to claim 2, characterized in that: A spring (314) for providing reset power is fixedly connected to the slide plate (39) at the upper end of the vertical groove plate (2), and the end of the spring (314) away from the slide plate (39) is fixedly connected to the grooved slide rod (312) at the lower end of the vertical groove plate (2).

4. The efficient semi-automatic yam harvester according to claim 3, characterized in that: A soil-feeding mechanism (4) for raising and discharging loose soil is installed on the drive shaft (32). The soil-feeding mechanism (4) includes a drive bevel gear (41), which is fixedly connected to the drive shaft (32). A driven bevel gear (42) is meshed with the drive bevel gear (41), and a connecting shaft (43) is fixedly connected to the driven bevel gear (42). The connecting shaft (43) is mounted on the vertical groove plate (2) via a connecting rod (310). The connecting rod (310) is rotatably connected to the connecting shaft (43). The end of the connecting shaft (43) away from the driven bevel gear (42) is fixedly connected to a vertical auger (44) for transporting soil upwards. At the same time, a connecting plate (45) is fixedly connected to the bottom of the vertical trough plate (2). The end of the connecting plate (45) away from the vertical trough plate (2) is fixedly connected to a second motor (46). The output end of the second motor (46) is fixedly connected to a horizontal auger (47) for transporting soil laterally.

5. A highly efficient semi-automatic yam harvester according to claim 4, characterized in that: An extension rod (5) is fixedly connected to the bracket (1), and a guide mechanism (6) for directional guidance of the device is installed at the end of the extension rod (5) away from the bracket (1). The guide mechanism (6) includes a shaft (61), which is fixedly connected to the extension rod (5). Both ends of the shaft (61) are rotatably connected to a hemisphere (62), and a limit rod (63) is fixedly connected to the end of the extension rod (5) near the hemisphere (62).

6. The efficient semi-automatic yam harvester according to claim 5, characterized in that: The bracket (1) is equipped with a moving mechanism (7) for driving the device to move. The moving mechanism (7) includes a third motor (71). The output end of the third motor (71) is fixedly connected to a third pulley (72). A second transmission belt (73) is meshed on the third pulley (72). At the same time, a fourth pulley (74) is meshed on the end of the second transmission belt (73) away from the third pulley (72). A rear drive shaft (75) is fixedly connected through the fourth pulley (74). Rollers (76) for moving the device are fixedly connected to both ends of the rear drive shaft (75). A limit plate (77) is rotatably connected through the rear drive shaft (75). The limit plate (77) is fixedly connected to the bottom of the bracket (1).