Rice transplanting depth adjusting device of rice transplanter

Abstract

The utility model relates to the technical field of rice transplanters and discloses a rice transplanter transplanting depth adjusting device which comprises a movable cylinder and a fixed cover, the fixed cover is fixedly mounted at the top end of the movable cylinder through four screws, a movable rod movably penetrates through the middle of the bottom end of the movable cylinder, a movable disc is welded to the top end of the movable rod, and a transplanting claw is welded to the bottom end of the movable rod. And four threaded columns are arranged in the movable cylinder. According to the scheme, the fixed cover is arranged, the rotating piece is arranged above the fixed cover, the rotating piece is rotated to drive the second gear to rotate, the second gear drives the four gears to synchronously rotate in the same direction, the four first gears drive the four threaded columns to synchronously rotate in the same direction, and in the process, the four threaded columns are matched to apply spiral thrust to the movable disc; compared with the prior art, the rice transplanter has the advantages that the rice transplanter is simple to operate, and time and labor are saved.

Description

Technical Field

[0001] The present application relates to the technical field of rice transplanters, and in particular to a rice transplanter planting depth adjustment device. Background Art

[0002] A rice transplanter is an agricultural machine that plants rice seedlings in rice fields. During use, a mechanical claw removes several rice seedlings from the seedbed and plants them in the soil of the field. In order to maintain a right angle between the seedbed and the ground, the front end of the mechanical claw must adopt an elliptical motion curve when moving. The motion is accomplished by a planetary mechanism of rotating or deforming gears, and the forward engine (agricultural machinery) can drive these motion mechanisms. The rice transplanter often needs to adjust the planting depth during use, but the planting claws of existing rice transplanters are mostly fixed and limited by bolts and nuts. When the planting claws need to be adjusted to achieve the purpose of depth adjustment, it must be completed with the help of tools (adjustable wrench). This adjustment method is more troublesome and takes a long time. Utility Model Content

[0003] In order to solve the above-mentioned problem that the transplanting claws of existing rice transplanters are mostly fixed and limited by bolts and nuts, when the transplanting claws need to be adjusted to achieve the purpose of depth adjustment, it must be completed with the help of tools (adjustable wrench). This adjustment method is more troublesome and takes a long time. The present application provides a transplanting depth adjustment device for a rice transplanter.

[0004] The present application provides a rice transplanter transplanting depth adjustment device that adopts the following technical solutions:

[0005] A rice transplanter transplanting depth adjustment device includes a movable cylinder and a fixed cover, the fixed cover is fixedly mounted on the top of the movable cylinder by four screws, a movable rod is movably penetrated in the middle of the bottom end of the movable cylinder, a movable disk is welded on the top end of the movable rod, and a transplanting claw is welded on the bottom end of the movable rod, four threaded columns are arranged inside the movable cylinder, the four threaded columns are all threaded through the movable disk, one end of the four threaded columns are rotatably inserted at the edge of the bottom wall of the movable cylinder, the other ends of the four threaded columns are rotatably penetrated by the fixed cover, the outer surfaces of the four threaded columns are fixedly sleeved with gear 1, a rotating part is rotatably penetrated in the middle of the top end of the fixed cover, the bottom end of the rotating part is fixedly sleeved with gear 2, and the four gear 1s are all engaged with gear 2.

[0006] Preferably, the rotating part consists of a hexagonal rotating block and a rotating shaft, the hexagonal rotating block is located above the fixed cover, the bottom end of the hexagonal rotating block is fitted with the top end of the fixed cover, the rotating shaft rotates through the fixed cover, one end of the rotating shaft is welded to the middle of the bottom end of the hexagonal rotating block, the gear 2 is fixedly sleeved on the outer surface of the rotating shaft, and the top end of the gear 2 is fitted with the bottom end surface of the fixed cover.

[0007] Preferably, an external threaded ring is welded to the edge of the top end of the fixed cover, and a threaded cap is threadedly sleeved on the outer surface of the external threaded ring.

[0008] Preferably, two connecting pieces are welded to the outer side wall of the movable cylinder, and a circular hole is formed on one side of the two connecting pieces.

[0009] To sum up, the present application includes the following beneficial technical effects: a fixed cover is provided, and a rotating part is provided above the fixed cover, and the rotating part drives gear 2 to rotate, and gear 2 drives the four gears to rotate synchronously in the same direction, and the four gears drive the four threaded columns to rotate synchronously in the same direction. During this process, the four threaded columns cooperate to apply a spiral thrust to the movable disk, so that the movable disk drives the transplanting claw to descend through the movable rod, and then adjusts the depth of the transplanting claw. Compared with the existing technology, it has the effects of simple operation, time saving and labor saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the application.

[0011] Figure 2 It is a schematic diagram of the split structure of the first embodiment of the application.

[0012] Figure 3 It is a schematic cross-sectional view of the first embodiment of the present invention.

[0013] Figure 4 It is a schematic diagram of the partial structure of the first embodiment of the application.

[0014] Explanation of the accompanying reference numerals: 11. movable cylinder; 12. fixed cover; 13. screw; 21. movable rod; 22. movable disk; 23. transplanting claw; 24. threaded column; 25. gear 1; 26. rotating part; 27. gear 2; 201. hexagonal rotating block; 202. rotating shaft; 31. external threaded ring; 32. threaded cap; 4. connecting part. DETAILED DESCRIPTION

[0015] The following is combined with Figure 1 -Attached Figure 4 This application is described in further detail.

[0016] Example 1:

[0017] A rice transplanter transplanting depth adjustment device, referring to Figure 1-4, including a movable cylinder 11 and a fixed cover 12. Two connecting pieces 4 are welded to the outer wall of the movable cylinder 11. A circular hole is opened on one side of the two connecting pieces 4. Two external bolts are used to penetrate the hinge of the external transplanter and respectively penetrate the circular holes opened on one side of the two connecting pieces 4. Then, two external nuts are set on one end of the two bolts, and then the two connecting pieces 4 can be connected to the two hinges, so that the +1 can be installed on the external transplanter. The fixed cover 12 is fixed to the top of the movable cylinder 11 by four screws 13. The four screws 13 are movable and penetrate the fixed cover 12, and the four screws 13 are fixed. The movable cylinder 11 is threadedly connected to the movable cylinder 11. The middle part of the bottom end of the movable cylinder 11 is movably penetrated by a movable rod 21. The top of the movable rod 21 is welded with a movable disk 22. The outer wall of the movable disk 22 fits the inner wall of the movable cylinder 11. The bottom end of the movable rod 21 is welded with a transplanting claw 23. Four threaded columns 24 are provided inside the movable cylinder 11. The four threaded columns 24 are all threaded through the movable disk 22. The thread opening angles of the four threaded columns 24 are consistent. The thread can be self-locking. The self-locking condition of the thread depends on the spiral angle of the thread, the friction coefficient and the load. The self-locking condition of the thread can be expressed by the following formula Calculation: Self-locking condition = friction coefficient × tan (helical angle) ≥ 1. When this condition is met, the self-locking of the movable disk 22 can be achieved. The above contents are all existing technologies. In actual applications, the corresponding self-locking angle can be set according to the friction coefficient of the material. No further details are given here. One end of the four threaded columns 24 is rotated and inserted into the edge of the inner bottom wall of the movable cylinder 11, and the other end of the four threaded columns 24 is rotated through the fixed cover 12. In this way, the four threaded columns 24 are continuously kept in a vertical state inside the movable cylinder 11. The outer surfaces of the four threaded columns 24 are fixedly sleeved with a gear 25. The middle part of the top of the fixed cover 12 is rotated through a rotating part 26, and the bottom end of the rotating part 26 is fixedly sleeved with a gear 2 27. The four gears 1 25 are all engaged with the gear 2 27. When the rotating rotating part 26 drives the gear 2 27 to continue to rotate, the gear 2 27 drives the four gears 1 25 to rotate synchronously in the same direction, and the four gears 1 25 drive the four threaded columns 24 to rotate synchronously in the same direction. In this process, the four threaded columns 24 cooperate to apply a spiral thrust to the movable disk 22, so that the movable disk 22 drives the planting claws 23 to descend through the movable rod 21, thereby adjusting the depth of the rice planting by the planting claws 23.

[0018] Reference Figure 3The rotating member 26 consists of a hexagonal rotating block 201 and a rotating shaft 202. The hexagonal rotating block 201 is located above the fixed cover 12. The bottom end of the hexagonal rotating block 201 is fitted with the top of the fixed cover 12. The rotating shaft 202 rotates through the fixed cover 12. One end of the rotating shaft 202 is welded to the middle of the bottom end of the hexagonal rotating block 201. Gear 2 27 is fixedly sleeved on the outer surface of the rotating shaft 202. The rotating shaft 202 can be driven to rotate by rotating the hexagonal rotating block 201. The rotating shaft 202 can drive gear 2 27 to rotate during the rotation process. The top end of gear 2 27 is fitted with the bottom end surface of the fixed cover 12 and cooperates with the hexagonal rotating block 201, so that the rotating shaft 202 can only rotate, but cannot drive the hexagonal rotating block 201 and gear 2 27 to move up and down.

[0019] Reference Figure 1 and Figure 2 An external threaded ring 31 is welded at the edge of the top of the fixed cover 12, and a threaded cap 32 is provided on the outer surface of the external threaded ring 31, which can completely wrap the hexagonal rotating block 201 to prevent external force from touching the hexagonal rotating block 201. In this way, the hexagonal rotating block 201 will not easily drive the gear 2 27 to rotate through the rotating shaft 202, and the gear 2 27 will not easily drive the four threaded columns 24 to rotate through the four gears 1 25. If the four threaded columns 24 do not rotate, the movable rod 21 and the transplanting claw 23 will not be driven to rise and fall through the movable disk 22.

[0020] The above describes an exemplary implementation of a rice transplanter transplanting depth adjustment device provided by the present disclosure with reference to a preferred embodiment. However, it can be understood by those skilled in the art that, without departing from the concept of the present disclosure, various variations and modifications can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present disclosure can be combined in various ways without exceeding the scope of protection of the present disclosure, which is determined by the attached claims.

Claims

1. A rice transplanter transplanting depth adjustment device, comprising a movable cylinder (11) and a fixed cover (12), characterized in that: The fixed cover (12) is fixedly mounted on the top of the movable cylinder (11) by four screws (13); a movable rod (21) is movably penetrated in the middle of the bottom of the movable cylinder (11); a movable disk (22) is welded to the top of the movable rod (21); a rice planting claw (23) is welded to the bottom of the movable rod (21); four threaded columns (24) are provided inside the movable cylinder (11); the four threaded columns (24) are all threadedly penetrated through the movable disk (22); the four screws One end of the threaded column (24) is rotatably inserted into the edge of the inner bottom wall of the movable cylinder (11), and the other ends of the four threaded columns (24) are rotatably penetrated through the fixed cover (12). The outer surfaces of the four threaded columns (24) are fixedly sleeved with a gear 1 (25). The middle part of the top of the fixed cover (12) is rotatably penetrated with a rotating member (26). The bottom end of the rotating member (26) is fixedly sleeved with a gear 2 (27), and the four gears 1 (25) are engaged with gear 2 (27).

2. A rice transplanter transplanting depth adjustment device according to claim 1, characterized in that: The rotating member (26) is composed of a hexagonal rotating block (201) and a rotating shaft (202). The hexagonal rotating block (201) is located above the fixed cover (12). The bottom end of the hexagonal rotating block (201) is in contact with the top end of the fixed cover (12). The rotating shaft (202) rotates through the fixed cover (12). One end of the rotating shaft (202) is welded to the middle of the bottom end of the hexagonal rotating block (201). The second gear (27) is fixedly sleeved on the outer surface of the rotating shaft (202). The top end of the second gear (27) is in contact with the bottom end surface of the fixed cover (12).

3. The rice transplanter transplanting depth adjustment device according to claim 1, characterized in that: An external threaded ring (31) is welded to the edge of the top end of the fixed cover (12), and a threaded cap (32) is threadedly sleeved on the outer surface of the external threaded ring (31).

4. The rice transplanter transplanting depth adjustment device according to claim 1, characterized in that: Two connecting pieces (4) are welded to the outer side wall of the movable cylinder (11), and a circular hole is provided on one side of the two connecting pieces (4).

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