Planting mechanism for well cellar type tobacco transplanting on film

Abstract

The utility model belongs to the technical field of agricultural machinery, and particularly relates to an on-film well cellar type tobacco transplanting mechanism which comprises a transplanting mechanism support, a power input shaft is rotatably arranged on the side wall of the transplanting mechanism support, and a bevel pinion is fixedly arranged at the lower end of the power input shaft. A crank disc fixing plate is fixedly connected to the lower side wall of the planting mechanism support, a spline is rotationally arranged on the side wall of the crank disc fixing plate, and a large bevel gear is arranged at the left end of the outer wall of the spline in a sleeving mode. Surface friction is changed into point friction, so that the stability of the mechanism is improved; a parallelogram mechanism is changed into an inequilateral quadrilateral mechanism, and the static track of the mechanism is an irregular circle with a larger transverse distance, so that the maximum transverse displacement can be realized under the condition that the large planting depth of tobacco seedlings is met, the transplanting is close to zero speed, and the film tearing is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, and particularly relates to a planting mechanism for transplanting tobacco in well cellars on film. Background Technique

[0002] Seedling transplanting is widely used in the tobacco planting link because it can effectively shorten the crop growth cycle and make up for the adverse effects brought by seasons and climates. Transplanting operation is an important link in tobacco planting.

[0003] At present, the intensification degree of the domestic tobacco planting industry is relatively low. There are relatively few growers who use mechanical transplanting for specific crops in specific regions. For example, in some areas with mountainous and hilly terrains and their climatic conditions, a special agricultural planting method of transplanting in well cellars on film is used during transplanting. This planting method requires the transplanting machine to plant tobacco seedlings deeper, tear the film smaller for heat preservation, and requires a faster planting speed. At present, there is no transplanting machine suitable for this agricultural method on the market. Currently, transplanting operations mainly rely on manual labor, with high labor intensity and low efficiency.

[0004] Therefore, a planting mechanism for transplanting tobacco in well cellars on film is proposed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a planting mechanism for transplanting tobacco in well cellars on film to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A planting mechanism for transplanting tobacco in well cellars on film, including a planting mechanism support frame. A power input shaft is rotatably arranged on the side wall of the planting mechanism support frame. A small bevel gear is fixedly arranged at the lower end of the power input shaft. A crank disc fixing plate is fixedly connected to the lower side wall of the planting mechanism support frame. A spline is rotatably arranged on the side wall of the crank disc fixing plate. A large bevel gear is sleeved on the left end of the outer wall of the spline. A crank disc is fixedly arranged at the right end of the outer wall of the spline. A motion connecting member is rotatably arranged on the side wall of the crank disc through a shaft pin. The upper end of the motion connecting member is rotatably arranged with a duckbill connecting rod through a shaft pin. The lower end of the motion connecting member is rotatably arranged with a T-shaped plate through a shaft pin. T-shaped plate left connecting rod and T-shaped plate right connecting rod are respectively rotatably arranged on the right side wall of the T-shaped plate. The other ends of the T-shaped plate left connecting rod and the T-shaped plate right connecting rod are rotatably connected to the crank disc fixing plate through shaft pins. A T-shaped connecting rod is rotatably arranged between the left end of the T-shaped plate and the duckbill connecting rod through a shaft pin. A duckbill connecting arm is arranged inside the duckbill connecting rod. A duckbill fixing rod is fixedly arranged at the lower end of the duckbill connecting arm. Right duckbill and left duckbill are respectively arranged on the outer wall of the duckbill fixing rod. Planting boxes are rotatably arranged inside both the right duckbill and the left duckbill.

[0007] Preferably, the planting box includes a left planting box and a right planting box, and the left planting box and the right planting box are adapted to each other.

[0008] Preferably, the small bevel gear meshes with the large bevel gear.

[0009] Preferably, the shape of the motion connecting piece is "T" shaped.

[0010] Preferably, the shape of the T-shaped plate is trapezoidal.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] (1) The traditional crank-slider mechanism is changed to a crank-link mechanism, avoiding the dead points that may occur during the operation of the planting mechanism, and changing the surface friction to point friction, improving the stability of the mechanism;

[0013] (2) The hinge connection is changed to a rigid connection, that is, it is changed to an inverted T connecting piece designed by simulation, so that the crank, which was originally a component providing rotary motion, becomes a component providing both rotary motion and planting depth. The planting depth is provided by the sum of the highest and lowest distances of the crank rotation plus the deformation of the quadrilateral. Compared with the planting mechanism of the traditional transplanter that only provides the planting depth by a parallelogram-like structure, it can plant deeper and increase the transplanting depth;

[0014] (3) The parallelogram mechanism is changed to a non-equilateral quadrilateral mechanism. The static locus of the mechanism is an irregular circle and an irregular circle with a relatively large horizontal distance, which can ensure the maximum horizontal displacement under the condition of meeting the large planting depth of tobacco seedlings, approaching zero-speed transplanting and reducing film tearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a planar structural schematic diagram of the present new type;

[0017] Figure 3 is Figure 2 a right-view structural schematic diagram of

[0018] In the figure: 1 power input shaft, 2 planting mechanism support, 3 small bevel gear, 4 spline, 5 large bevel gear, 6 crank disc, 7 motion connecting piece, 8 duckbill link, 9 T-shaped link, 10 right duckbill, 11 left duckbill, 12 duckbill fixing rod, 13 T-shaped plate, 14 duckbill connecting arm, 15 T-shaped plate, 16 left link of T-shaped plate, 17 right link of T-shaped plate, 18 crank disc fixing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0021] Embodiment:

[0022] Please refer to Figures 1-3 , the present utility model provides a technical solution:

[0023] A planting mechanism for tobacco transplanting in a well cell on a film, comprising a planting mechanism support 2, the planting mechanism support 2 is fixed on a transplanter, a power input shaft 1 is rotatably arranged on the side wall of the planting mechanism support 2, a small bevel gear 3 is fixedly arranged at the lower end of the power input shaft 1, a crank disc fixing plate 18 is fixedly connected to the lower side wall of the planting mechanism support 2, a spline 4 is rotatably arranged on the side wall of the crank disc fixing plate 18, a large bevel gear 5 is sleeved on the left end of the outer wall of the spline 4, the small bevel gear 3 and the large bevel gear 5 are meshed, a crank disc 6 is fixedly arranged at the right end of the outer wall of the spline 4, a motion connecting piece 7 is rotatably arranged on the side wall of the crank disc 6 through a pin, the shape of the motion connecting piece 7 is in a "T" shape, the upper end of the motion connecting piece 7 is rotatably arranged with a duckbill connecting rod 8 through a pin, the lower end of the motion connecting piece 7 is rotatably arranged with a T-shaped plate 15 through a pin, the shape of the T-shaped plate 15 is trapezoidal, a T-shaped plate left connecting rod 16 and a T-shaped plate right connecting rod 17 are respectively rotatably arranged on the right side wall of the T-shaped plate 15, the other ends of the T-shaped plate left connecting rod 16 and the T-shaped plate right connecting rod 17 are rotatably connected to the crank disc fixing plate 18 through pins, a T-shaped connecting rod 9 is rotatably arranged between the left end of the T-shaped plate 15 and the duckbill connecting rod 8 through a pin, a duckbill connecting arm 14 is arranged inside the duckbill connecting rod 8, a duckbill fixing rod 12 is fixedly arranged at the lower end of the duckbill connecting arm 14, a right duckbill 10 and a left duckbill 11 are respectively arranged on the outer wall of the duckbill fixing rod 12, the right duckbill 10 and the left duckbill 11 rotate relatively under the action of a specific cam wire, planting boxes 13 are rotatably arranged inside both the right duckbill 10 and the left duckbill 11, the planting boxes 13 include a left planting box and a right planting box, the left planting box and the right planting box are adapted to each other, the T-shaped plate left connecting rod 16 and the T-shaped plate right connecting rod 17 are hinged on the crank disc fixing plate 18, the T-shaped plate 15 moves along a specific motion track under the combined action of the T-shaped plate left connecting rod 16 and the T-shaped plate right connecting rod 17, the right duckbill 10 and the left duckbill 11 are hinged and ensure that there is only rotation and no movement with the planting box 13. The structure of this mechanism is simple, the static track is an irregular circle, the maximum horizontal distance of the irregular circle is relatively large, and the longitudinal distance from the lowest end to the position where the maximum horizontal distance is generated is 15 cm. When the planting mechanism support 2 is connected to the transplanter and moves forward, the static track of the irregular circle plus the horizontal speed forms a zero-speed-like transplanting planting track under certain conditions, specifically, the rotational speed is 50 rad / s and the forward speed is 375 mm / s.

[0024] Working principle:

[0025] The motor starts. The motor is connected to the power input shaft 1 through a speed reducer. The power input shaft 1 rotates relative to the planting mechanism bracket 2. The power input shaft 1 transmits power to the small bevel gear 3. The small bevel gear 3 meshes with and rotates the large bevel gear 5. The large bevel gear 5 transmits power to the engaged spline 4. The spline 4 drives the crank disk 6 to rotate. The rotation of the crank disk 6 drives the movement connecting piece 7 fixed on the crank disk 6 to rotate. The movement connecting piece 7 drives the T-shaped plate 15 and the duckbill connecting rod 8 to act. The T-shaped plate 15 drives the T-shaped connecting rod 9 to move. The duckbill connecting rod 8 moves under the action of the movement connecting piece 7 and the T-shaped connecting rod 9, driving the duckbill connecting arm 14 to move.

[0026] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic features of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A planting mechanism for well cellars for tobacco transplanting on membranes, comprising a planting mechanism support (2), characterized in that, A power input shaft (1) is rotatably arranged on the side wall of the planting mechanism bracket (2). A small bevel gear (3) is fixedly arranged at the lower end of the power input shaft (1). A crank disc fixing plate (18) is fixedly connected to the lower side wall of the planting mechanism bracket (2). A spline (4) is rotatably arranged on the side wall of the crank disc fixing plate (18). A large bevel gear (5) is sleeved on the left end of the outer wall of the spline (4). A crank disc (6) is fixedly arranged at the right end of the outer wall of the spline (4). A motion connecting piece (7) is rotatably arranged on the side wall of the crank disc (6) through a pin. The upper end of the motion connecting piece (7) is rotatably arranged with a duckbill connecting rod (8) through a pin. The lower end of the motion connecting piece (7) is rotatably arranged with a T-shaped plate (15) through a pin. A T-shaped plate left connecting rod (16) and a T-shaped plate right connecting rod (17) are respectively rotatably arranged on the right side wall of the T-shaped plate (15). The other ends of the T-shaped plate left connecting rod (16) and the T-shaped plate right connecting rod (17) are both rotatably connected to the crank disc fixing plate (18) through pins. A T-shaped connecting rod (9) is rotatably arranged between the left end of the T-shaped plate (15) and the duckbill connecting rod (8) through a pin. A duckbill connecting arm (14) is arranged inside the duckbill connecting rod (8). A duckbill fixing rod (12) is fixedly arranged at the lower end of the duckbill connecting arm (14). A right duckbill (10) and a left duckbill (11) are respectively arranged on the outer wall of the duckbill fixing rod (12). Planting boxes (13) are rotatably arranged inside both the right duckbill (10) and the left duckbill (11).

2. The planting mechanism of the membrane-covered well-cellar type tobacco transplanting according to claim 1, characterized in that: The planting box (13) includes a left planting box and a right planting box, and the left planting box and the right planting box are adapted to each other.

3. The planting mechanism of the film-covered well-cellar type tobacco transplanting according to claim 1, characterized in that: The small bevel gear (3) and the large bevel gear (5) are meshed.

4. The planting mechanism for membrane well cellars tobacco transplanting according to claim 1, characterized in that: The motion connecting piece (7) is in a "T" shape.

5. The planting mechanism of the film-on-well cellar type tobacco transplanting according to claim 1, characterized in that: The T-shaped plate (15) is in a trapezoidal shape.

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