High grafting low planting posture changing planetary gear train planting mechanism

Abstract

High connection low planting mechanism of attitude planet wheel system belongs to agricultural machinery;The upper and lower planet shafts of the first planet wheel system mechanism are rotatably installed with the upper and lower second planet wheel system planting assemblies, the outer ends of the upper and lower planet gears II sleeved on the upper and lower planet shafts are fixed with the upper and lower second gear boxes, one side of the upper and lower planet shafts is fixed with the upper and lower center non-circular gears, the other side is fixed with the upper and lower planet gears I, the center shaft is inserted and fixed with the main gear box at the outer side of the transmission mechanism assembly, the transmission driven gear, the center gears I and II sleeved on the center shaft are fixed with each other, the corresponding gears in the mechanism drive operation according to the required transmission ratio relationship;The mechanism has good planting quality, wide plant spacing adjustment range, reliable work, stable operation and high operation efficiency.

Description

Technical Field

[0001] This invention pertains to agricultural machinery and mainly relates to a high-grafting, low-planting variable-posture planetary gear system planting mechanism. Background Technology

[0002] Currently, the working process of seedling transplanting machinery for vegetables and other crops mainly involves feeding seedlings prepared manually, by a seedling-collecting mechanism, or by a seedling-placing mechanism into the transplanting machinery, which then plants the seedlings in the field. However, due to the structural limitations of the overall transplanting machinery, the seedling-placing and seedling-receiving point is often located at a high position, while the planting position in the field is relatively low, resulting in a significant difference in working height. Therefore, to meet the requirements of seedling-receiving and planting operations, most transplanting mechanisms on the market, regardless of whether the working parts are linkage-type or rotary, are designed to be very large and cumbersome. Moreover, most devices only complete one planting operation per rotation, and at the seedling-placing point, the mechanism can only achieve a horizontal seedling-receiving posture. This leads to problems such as high inertial force, large vibration, low efficiency, low seedling-receiving success rate, low space utilization, poor adaptability, and poor seedling planting quality. Furthermore, due to the large structure, it is impossible to achieve the requirement of small plant spacing. These technical problems need to be solved. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art and, in combination with the actual needs of mechanical planting of vegetable and other crop seedlings, to develop and design a high-grafting, low-planting variable-posture planetary gear planting mechanism. This mechanism can meet the height difference requirements of seedling picking at a higher position and planting at a lower position, while simultaneously achieving the planting of seedlings with small plant spacing. During operation, it has good kinematic and dynamic performance, high seedling grafting success rate, good planting quality, wide plant spacing adjustment range, more reliable operation, stable operation, strong adaptability, and improved work efficiency.

[0004] The objective of this invention is achieved as follows: a high-mounted, low-planted variable-posture planetary gear train planting mechanism, comprising a transmission mechanism assembly, a first planetary gear train mechanism, an upper second planetary gear train planting assembly, and a lower second planetary gear train planting assembly. An upper planetary shaft and a lower planetary shaft are symmetrically and rotatably inserted into the first planetary gear train mechanism at positions 180° apart along the circumferential direction. A central shaft is rotatably mounted on the transmission mechanism assembly. The central shaft is inserted into the outer part of the transmission housing of the transmission mechanism assembly and fixedly connected to the main gearbox of the main planetary gear train. The upper planetary shaft and... On the lower planetary shaft, at the outer portion of the first planetary gear train mechanism, the upper second gearbox and lower second gearbox of the upper and lower second planetary gear train assembly are respectively installed and engaged with the lower second planetary gear train assembly. The upper and lower second planetary gear train assemblies are rotatably mounted on the upper and lower planetary shafts, respectively. The upper planetary gear II and lower planetary gear II of the first planetary gear train mechanism are rotatably mounted on the upper and lower planetary shafts, respectively. The outer ends of the upper and lower planetary gear II respectively engage with the upper second planetary gear train assembly. The upper second gearbox of the planting assembly and the lower second planetary gear train of the planting assembly are fixedly connected. Within the upper and lower second gearboxes, one side of the upper and lower planetary shafts is fixedly connected to the upper and lower central non-circular gears, respectively. Within the first planetary gear train mechanism, the other side of the upper and lower planetary shafts is fixedly connected to the upper planetary gear I and the lower planetary gear I, respectively. The driven gear in the transmission mechanism assembly and the central gear I and central gear II in the first planetary gear train mechanism are rotatably mounted on the central shaft. The driving gear is fixedly connected to the central gear I and the central gear II. The transmission relationship between the central shaft of the transmission mechanism assembly and the driven gear is that they rotate in the same direction, and the transmission ratio is 1:3. The transmission ratio between the upper planetary gear I and the lower planetary gear I of the first planetary gear train mechanism and the central gear I is 1:2, and the transmission ratio between the upper planetary gear II and the lower planetary gear II and the central gear II is 1:1. The gear transmission ratio in the upper second planetary gear train planting assembly and the lower second planetary gear train planting assembly is 1:1. Thus, a high-connection low-planting variable posture planetary gear train planting mechanism is formed.

[0005] Another form is that in the first planetary gear train mechanism, the central gear I is not equipped with a planetary gear train transmission relationship with the upper planetary gear I and the lower planetary gear I. The upper central non-circular gear and the lower central non-circular gear in the upper second planetary gear train assembly and the lower second planetary gear train assembly, as well as the gears that mesh with them respectively, are all circular gears. The transmission ratio relationship between the upper central non-circular gear and the lower central non-circular gear and the upper second planetary gear and the lower second planetary gear respectively is 2:1.

[0006] The beneficial effects of this invention are as follows: Through the specific transmission ratio relationship in the transmission mechanism assembly, the first planetary gear train mechanism, and the motion synthesis of the upper and lower second planetary gear train planting assemblies respectively configured on the main planetary gear train, the entire planting mechanism can not only meet the requirements of picking up seedlings at a higher position and planting at a lower position, but also realize the continuous change of the mechanism posture at the seedling picking position, so that the seedling receiving port is always facing the seedling, thus ensuring an increased seedling receiving success rate. At the same time, the overall planting mechanism achieves the goal of small-spacing planting by the specific transmission coordination of the two sets of planetary gear trains. The entire planting mechanism is a rotary planetary gear train mechanism, ensuring outstanding kinematic and dynamic performance. One rotation can realize two consecutive planting operations, with stable operation, high operation quality, and high work efficiency. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the overall structure of the high-grafting, low-planting variable-posture planetary gear system planting mechanism;

[0008] Figure 2 This is a schematic side view of the planting mechanism structure;

[0009] Figure 3 This is a schematic diagram showing the seedling receiving and planting positions of the planting organization and its operation.

[0010] Part number description in the image:

[0011] 1. Transmission mechanism assembly; 2. Central shaft; 3. Driven gear; 4. Transmission box; 5. First planetary gear train mechanism; 6. Upper planetary gear I; 7. Upper planetary shaft; 8. Upper planetary gear II; 9. Upper second planetary gear train assembly; 10. Upper second planetary gear; 11. Upper second gearbox; 12. Upper central non-circular gear; 13. Central gear I; 14. Main gearbox; 15. Central gear II; 16. Lower planetary gear I; 17. Lower planetary shaft; 18. Lower planetary gear II; 19. Lower second planetary gear train assembly; 20. Lower central non-circular gear; 21. Lower second gearbox; 22. Lower second planetary gear. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0013] A high-planting, low-position variable-posture planetary gear train planting mechanism includes a transmission mechanism assembly 1, a first planetary gear train mechanism 5, an upper second planetary gear train planting assembly 9, and a lower second planetary gear train planting assembly 19. An upper planetary shaft 7 and a lower planetary shaft 17 are symmetrically and rotatably inserted into the first planetary gear train mechanism 5 at positions 180° apart along the circumference. A central shaft 2 is rotatably mounted on the transmission mechanism assembly 1. The central shaft 2 is inserted into the outer part of the transmission housing 4 of the transmission mechanism assembly 1 and fixedly connected to the main gearbox 14 of the main planetary gear train 5. The upper planetary shaft 7 and the lower planetary shaft 17 are located at... The outer portion of the first planetary gear train mechanism 5 is respectively fitted with the upper second gearbox 11 and lower second gearbox 21 of the upper second planetary gear train assembly 9 and the lower second planetary gear train assembly 19. The upper second planetary gear train assembly 9 and the lower second planetary gear train assembly 19 are rotatably mounted on the upper planetary shaft 7 and the lower planetary shaft 17, respectively. The upper planetary gear II 8 and the lower planetary gear II 18 of the first planetary gear train mechanism 5 are rotatably mounted on the upper planetary shaft 7 and the lower planetary shaft 17, respectively. The outer ends of the upper planetary gear II 8 and the lower planetary gear II 18 are respectively connected to the upper second planetary gear train assembly. The upper second gearbox 11 of assembly 9 and the lower second planetary gear train assembly 19 are fixedly connected. Inside the upper second gearbox 11 and the lower second gearbox 21, one side of the upper planetary shaft 7 and the lower planetary shaft 17 are fixedly connected to the upper central non-circular gear 12 and the lower central non-circular gear 20, respectively. Inside the first planetary gear train mechanism 5, the other side of the upper planetary shaft 7 and the lower planetary shaft 17 are fixedly connected to the upper planetary gear I6 and the lower planetary gear I16, respectively. The driven gear 3 in the transmission mechanism assembly 1 is rotatable from the central gear I13 and the central gear II15 in the first planetary gear train mechanism 5. The gears are mounted on the central shaft 2. The driven gear 3 is fixedly connected to the central gear I13 and the central gear II15. The transmission relationship between the central shaft 2 and the driven gear 3 of the transmission mechanism assembly 1 is that they rotate in the same direction, and the transmission ratio is 1:3. The transmission ratio between the upper planetary gear I6 and the lower planetary gear I16 of the first planetary gear train mechanism 5 and the central gear I13 is 1:2. The transmission ratio between the upper planetary gear II8 and the lower planetary gear II18 and the central gear II15 is 1:1. The gear transmission ratios in the upper second planetary gear train assembly 9 and the lower second planetary gear train assembly 19 are both 1:1.

[0014] Another form is that in the first planetary gear train mechanism 5, the planetary gear train transmission relationship between the central gear I13 and the upper planetary gear I6 and the lower planetary gear I16 is not installed. The upper central non-circular gear 12 and the lower central non-circular gear 20 in the upper second planetary gear train assembly 9 and the lower second planetary gear train assembly 19, as well as the gears that mesh with them respectively, are all circular gears. The transmission ratio relationship between the upper central non-circular gear 12 and the lower central non-circular gear 20 and the upper second planetary gear 10 and the lower second planetary gear 22 is 2:1.

[0015] During operation, this mechanism is mounted on the traveling implement and provides power. The input power is transmitted to two gears fixed to a shaft parallel to the central shaft 2 through the transmission mechanism assembly 1, including but not limited to bevel gears. These two gears transmit power to the gear fixed to the central shaft 2 and the driven gear 3 mounted on the central shaft 2, respectively. By using gears of different diameters mounted in the transmission mechanism, the central shaft 2 and the driven gear 3 obtain the same rotational power with a transmission ratio of 1:3. The central shaft 2 passes through the mutually fixed driven gear 3, the central gear I13, and the central... Gear II 15 drives the main gearbox 14, which is fixed to it, to rotate, thereby causing the first planetary gear train mechanism 5 to rotate. Simultaneously, the driven gear 3 also drives the central gear I 13 and central gear II 15, which are fixed to it, to rotate in the same direction. Through the transmission relationship of two different intermediate gears in the first planetary gear train mechanism 5, the upper planetary gear I 6 and the lower planetary gear I 16 respectively obtain power with a transmission ratio of 1:2 with the central gear I 13, while the upper planetary gear II 8 and the lower planetary gear II 18 respectively obtain power with a transmission ratio of 1:1 with the central gear II 15. At this time, the upper planetary gear I 6 and... The lower planetary gear I 16 transmits power to the upper central non-circular gear 12 in the upper second planetary gear train assembly 9 and the lower central non-circular gear 20 in the lower second planetary gear train assembly 19 via the upper planetary shaft 7 and the lower planetary shaft 17, respectively. Simultaneously, the upper planetary gear II 8 and the lower planetary gear II 18 transmit power to the upper second gearbox 11 and the lower second gearbox 21. Thus, the upper second planetary gear train assembly 9 and the lower second planetary gear train assembly 19 can rotate a full revolution in the opposite direction to the rotation of the first planetary gear train mechanism 5 through power transmission. The relative rotational motion of the non-circular gear planetary gear system in the planetary gear planting assembly 19, with a 1:1 transmission, enables the planters, which are fixed to the upper second planetary gear 10 and the lower second planetary gear 22 respectively, to obtain special seedling picking, planting trajectories and postures. This achieves the requirement that the planters can pick up seedlings at a higher position and plant them at a lower position. Furthermore, the upper second planetary gear system planting assembly 9 and the lower second planetary gear system planting assembly 19, which rotate in the opposite direction to the first planetary gear system mechanism 5, drive the planters to achieve the goal of planting with small plant spacing. The entire planting mechanism achieves two continuous planting operations with one rotation.

Claims

1. A high-mounted, low-planted, variable-posture planetary gear train planting mechanism, comprising a transmission mechanism assembly (1), a first planetary gear train mechanism (5), an upper second planetary gear train planting assembly (9), and a lower second planetary gear train planting assembly (19), wherein an upper planetary shaft (7) and a lower planetary shaft (17) are symmetrically and rotatably inserted and mounted on the first planetary gear train mechanism (5) at positions 180° apart along the circumferential direction, and a central shaft (2) is rotatably mounted on the transmission mechanism assembly (1), wherein the central shaft (2) is inserted into the outer part of the transmission box (4) of the transmission mechanism assembly (1) and fixedly connected to the main gearbox (14) of the first planetary gear train mechanism (5), characterized in that: On the upper planetary shaft (7) and lower planetary shaft (17), at the outer part of the first planetary gear train mechanism (5), the upper second gearbox (11) and lower second gearbox (21) of the upper second planetary gear train assembly (9) and lower second planetary gear train assembly (19) are respectively installed and engaged, so that the upper second planetary gear train assembly (9) and lower second planetary gear train assembly (19) are rotatably mounted on the upper planetary shaft (7) and lower planetary shaft (17), respectively. The upper planetary gear II (8) of the first planetary gear train mechanism (5) is connected to the lower planetary gear II (21) of the lower planetary shaft (7). Planetary gear II (18) is rotatably mounted on the upper planetary shaft (7) and the lower planetary shaft (17). The outer ends of the upper planetary gear II (8) and the lower planetary gear II (18) are respectively fixed to the upper second gearbox (11) of the upper second planetary gear train assembly (9) and the lower second gearbox (21) of the lower second planetary gear train assembly (19). Inside the upper second gearbox (11) and the lower second gearbox (21), one side of the upper planetary shaft (7) and the lower planetary shaft (17) is respectively connected to the upper central non-circular gear (12) and the lower central non-circular gear (17). Gear (20) is fixedly connected. In the first planetary gear train mechanism (5), the other side of the upper planetary shaft (7) and the lower planetary shaft (17) are fixedly connected to the upper planetary gear I (6) and the lower planetary gear I (16) respectively. The driven gear (3) in the transmission mechanism assembly (1) and the central gear I (13) and central gear II (15) in the first planetary gear train mechanism (5) are rotatably mounted on the central shaft (2). The driven gear (3) is fixedly connected to the central gear I (13) and the central gear II (15). The transmission relationship between the central shaft (2) of the mechanism assembly (1) and the driven gear (3) is that they rotate in the same direction and the transmission ratio is 1:

3. The transmission ratio between the upper planetary gear I (6) and the lower planetary gear I (16) of the first planetary gear system (5) and the central gear I (13) is 1:

2. The transmission ratio between the upper planetary gear II (8) and the lower planetary gear II (18) and the central gear II (15) is 1:

1. The gear transmission ratio in the upper second planetary gear system assembly (9) and the lower second planetary gear system assembly (19) is 1:

1.

2. The high-planting, low-grafting variable-posture planetary gear system planting mechanism according to claim 1, characterized in that: In the first planetary gear train mechanism (5), the planetary gear train transmission relationship between the central gear I (13) and the upper planetary gear I (6) and the lower planetary gear I (16) is not configured. The upper central non-circular gear (12) and the lower central non-circular gear (20) in the upper second planetary gear train assembly (9) and the lower second planetary gear train assembly (19), as well as the gears that mesh with them respectively, are all circular gears. The transmission ratio relationship between the upper central non-circular gear (12) and the lower central non-circular gear (20) and the upper second planetary gear (10) and the lower second planetary gear (22) is 2:1.

Images