Tobacco pond digging device

Abstract

The utility model discloses a tobacco pond-digging device which comprises a mounting frame, a power input shaft, a pond-digging power shaft and a pond-digging rotary positioning shaft are rotationally arranged on the mounting frame in the left-right horizontal direction, the pond-digging power shaft is located below the front portion of the power input shaft, and the pond-digging rotary positioning shaft is located right in front of the pond-digging power shaft. The power input shaft is connected with the pond digging power shaft through a pond digging chain transmission mechanism, a pond digging swing rod extending backwards is rotationally connected to the pond digging rotary positioning shaft, the rear end of the pond digging swing rod is connected with an up-down swing type pond digging device, and the pond digging power shaft is connected with a crank assembly in rolling fit with the top face of the pond digging swing rod. Through reasonable structure and installation, the pond digging device meeting the agricultural requirements of tobacco transplanting in the Henan Plain tobacco area is constructed, and automatic pond digging work can be achieved in the tobacco transplanting process. The pond digging depth and the pond distance can be adjusted by changing the tooth number ratio of the chain wheel of the transmission mechanism and adjusting a bolt assembly, and the agricultural requirements of tobaccos in multiple areas can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and particularly relates to a tobacco hole-digging device. Background Art

[0002] Tobacco is an annual herbaceous plant with high economic value and is one of the important cash crops in China, with extremely extensive cultivation. The annual tobacco planting area in China is more than 1000 thousand hectares. The main tobacco planting method is seedling raising and transplanting. Tobacco transplanting means planting the tobacco seedlings raised in the greenhouse in the field at the appropriate temperature in spring. Timely tobacco transplanting is beneficial to the later development of tobacco and can improve the quality and yield of tobacco. Tobacco transplanting needs to form holes (dig holes) first, which can provide a suitable growth environment for tobacco seedlings and reduce the impact force suffered by the duckbill transplanter during transplanting. The transplanting efficiency and quality directly affect the quality, yield and economic benefits of tobacco. The hole-digging device for transplanting is one of the core components of the tobacco transplanter and has an important impact on the transplanting efficiency and quality. Designing a reasonable hole-digging device for transplanting is the key to the smooth progress of tobacco transplanting. At present, the development of tobacco transplanters is relatively slow. More advanced vegetable transplanters and rice transplanters, etc., cannot meet the special planting agronomic requirements of flue-cured tobacco.

[0003] At present, in the plain tobacco-growing areas of Henan, during the tobacco transplanting process, hole-digging and transplanting are mostly carried out manually, still requiring a large amount of labor input. At present, some hole-digging machines have weak adaptability. In the plain tobacco-growing areas of Henan, such as Nanyang and Xuchang, the soil conditions vary greatly, and the existing hole-digging machines cannot meet the conditions of each area. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides a tobacco hole-digging device whose hole-digging depth and hole distance can be adjusted according to the agronomic requirements of different regions.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a tobacco hole-digging device, including an installation frame (2). On the installation frame (2), a power input shaft (4), a hole-digging power shaft (1-9) and a hole-digging rotary positioning shaft (1-5) are rotatably arranged along the left-right horizontal direction. The hole-digging power shaft (1-9) is located in front of and below the power input shaft (4), and the hole-digging rotary positioning shaft (1-5) is located directly in front of the hole-digging power shaft (1-9). The power input shaft (4) is connected to the hole-digging power shaft (1-9) through a hole-digging chain transmission mechanism (3). A hole-digging swing rod (1-7) extending backward is rotatably connected to the hole-digging rotary positioning shaft (1-5). The rear end of the hole-digging swing rod (1-7) is connected to an up-and-down swing type hole-digging implement (1). The hole-digging power shaft (1-9) is connected to a crank assembly that is in rolling cooperation with the top surface of the hole-digging swing rod (1-7).

[0006] The installation frame (2) includes two side plates (2-1) that are vertically arranged and spaced apart left and right; the up-and-down swinging pond-digging implement (1) includes a hanging plate (1-1) that is horizontally arranged left and right between the two side plates, a pond-digging installation frame (1-8) fixedly connected to the rear end of the pond-digging swing rod (1-7), and a pond-digging shovel (1-10) connected to the bottom of the pond-digging installation frame (1-8). A hanging hole is provided in the middle of the hanging plate (1-1), a hanging ring is provided at the rear side of the upper part of the pond-digging installation frame (1-8), and a tension spring (1-2) is provided between the hanging hole and the hanging ring.

[0007] The pond-digging installation frame (1-8) includes a horizontal plate (1-8-5). A vertical plate (1-8-2) along the left-right direction is vertically and fixedly provided on the upper surface of the horizontal plate (1-8-5). The vertical plate (1-8-2) is connected to the rear end of the pond-digging swing rod (1-7) through a first bolt assembly (1-8-1). The vertical plate (1-8-2) and the horizontal plate (1-8-5) are connected and reinforced through a triangular rib plate. Two long slot holes (1-8-4) arranged at intervals left and right are provided on the horizontal plate (1-8-5) along the front-rear direction.

[0008] The pond-digging shovel (1-10) includes a horizontally arranged pond-digging connecting plate (1-8-9) and a shovel surface mounting plate (1-8-6). The pond-digging connecting plate (1-8-9) is arranged on the bottom surface of the horizontal plate (1-8-5). The pond-digging connecting plate (1-8-9) is fixedly connected to the horizontal plate (1-8-5) through a second bolt assembly (1-8-3) passing through the long slot hole (1-8-4). The upper side of the shovel surface mounting plate (1-8-6) is fixedly connected to the rear side of the pond-digging connecting plate (1-8-9). Two rows of vertical long holes are provided on the shovel surface mounting plate (1-8-6). A shovel plate (1-8-7) is connected to the rear side surface of the shovel surface mounting plate (1-8-6) through a third bolt assembly (1-8-8) passing through the vertical long holes.

[0009] The shovel plate (1-8-7) is made by bending a carbon steel plate with a thickness of 5 mm and a semi-circular shape. It is bent along the vertical center line of the shovel plate and the bending angle is 120°. The left and right parts of the bent shovel plate are symmetrical about the bending line. The front side surface of the shovel plate is a convex surface, and the rear side surface of the shovel plate is a concave surface.

[0010] The crank assembly includes a bearing seat (1-3) installed on the inner side surface of one of the side plates (2-1). The pond-digging power shaft (1-9) is rotatably connected to the bearing seat (1-3) through a bearing installed in the bearing seat (1-3). The inner end of the pond-digging power shaft (1-9) is vertically connected with a crank (1-4). The other end of the crank (1-4) is connected with a pressure rod (1-11) parallel to the pond-digging power shaft (1-9). A roller (1-6) that is in rolling fit with the top surface of the pond-digging swing rod (1-7) is installed on the pressure rod (1-11).

[0011] The pond-digging chain drive mechanism (3) includes a pond-digging driving sprocket (3-1), a pond-digging chain (3-2), and a pond-digging driven sprocket (3-3). The pond-digging driving sprocket (3-1) is installed on the power input shaft (4), and the pond-digging driven sprocket (3-3) is installed on the pond-digging power shaft (1-9).

[0012] With the above technical solution, the working process of the present utility model is as follows: First, install the present utility model on a traction type transplanter. The front side of the installation frame (2) is fixedly connected to the frame (7) of the traction type transplanter by bolts. Both ends of the power input shaft (4) are rotatably connected to the left and right sides of the frame (7). The tractor drives the traction type transplanter to move forward. The ground wheel (5) rotates, and power is input into the power input shaft (4) through the ground wheel chain drive mechanism (6). The power input shaft (4) drives the pond-digging power shaft (1-9) to rotate through the pond-digging chain drive mechanism (3). The pond-digging power shaft (1-9) drives the crank (1-4) to rotate. The roller (1-6) on the pressure rod (1-11) fixedly connected perpendicular to the crank (1-4) presses down on the pond-digging swing rod (1-7). The pond-digging swing rod (1-7) rotates downward with the pond-digging rotary positioning shaft (1-5) as the fulcrum. The shovel plate (1-8-7) of the pond-digging shovel (1-10) connected to the rear end of the pond-digging swing rod (1-7) enters the soil for pond-digging operation. After the crank (1-4) rotates to press the pond-digging swing rod (1-7) to the lowest point, under the action of the tension spring (1-2), the pond-digging shovel (1-10) is quickly lifted. So that under the combined action of the forward movement and the up and down movement of the shovel plate (1-8-7) following the tractor, the pond openings dug by the shovel plate (1-8-7) are close to circular. By changing the tooth number ratio of the front and rear sprockets of the ground wheel chain drive mechanism (6), the transmission ratio between the ground wheel (5) and the power input shaft (4) can be changed, and further the distance between two adjacent pond openings dug can be changed.

[0013] The tension spring (1-2) always has an oblique upward traction effect on the pond-digging shovel (1-10). When the roller (1-6) rotates upward, under the action of the tension spring (1-2), the pond-digging shovel (1-10) is reset upward. The roller (1-6) is in rolling press connection with the pond-digging swing rod (1-7), which can reduce mechanical wear.

[0014] The shovel surface mounting plate (1-8-6) is provided with two rows of vertical mounting holes. By screwing the third bolt assembly (1-8-8), the vertical position of the shovel plate (1-8-7) can be adjusted according to different installation positions, that is, the pond-digging depth can be adjusted steplessly.

[0015] The present utility model moves forward by being towed by a tractor. The ground wheel rotates to transmit power to the power input shaft, and then drives the crank mechanism through chain drive. The crank mechanism presses down on the pond-digging shovel, and through the calculated sprocket transmission ratio, the pond-digging operation is realized.

[0016] The transplanting plant spacing can be adjusted by replacing the sprocket and changing the transmission ratio to meet the tobacco agronomic requirement of 40cm-60cm. The depth of the pond can be adjusted by the third bolt assembly, and the front and rear positions of the pond can be adjusted by adjusting the front and rear relative positions of the pond connection plate and the horizontal plate, that is, by twisting the second bolt assembly.

[0017] The convex surface on the front side of the shovel is the working surface for digging the pond (the working surface in contact with the soil). The shovel is designed to be bent at 120° instead of a 90° plane in order to facilitate the soil to be pushed to both sides, so that the pond mouth is approximately circular.

[0018] In summary, the utility model has constructed a pond digging device that meets the agronomic requirements of tobacco transplanting in the Henan Plain tobacco area through reasonable structure and installation. The structure is compact and can realize automatic pond digging during tobacco transplanting. By changing the ratio of the sprocket teeth of the transmission mechanism and adjusting the bolt assembly, the depth and distance of the pond can be adjusted to meet the agronomic requirements of tobacco in multiple regions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model installed on a traction-type transplanter;

[0021] Figure 3 It is a schematic diagram of the structure of an up-and-down swinging pond digging device;

[0022] Figure 4 yes Figure 3 Enlarged view of the pond digging installation frame and pond digging shovel;

[0023] Figure 5 yes Figure 4 Enlarged view of the middle shovel plate;

[0024] Figure 6 It is a structural diagram of the chain transmission mechanism. DETAILED DESCRIPTION

[0025] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0026] like Figures 1 - 6As shown in the figure, a tobacco hole-digging device of the present utility model includes an installation frame (2). A power input shaft (4), a hole-digging power shaft (1-9), and a hole-digging rotary positioning shaft (1-5) are rotatably arranged on the installation frame (2) along the left-right horizontal direction. The hole-digging power shaft (1-9) is located in the front lower part of the power input shaft (4), and the hole-digging rotary positioning shaft (1-5) is located directly in front of the hole-digging power shaft (1-9). The power input shaft (4) is connected to the hole-digging power shaft (1-9) through a hole-digging chain transmission mechanism (3). A hole-digging swing rod (1-7) extending backward is rotatably connected to the hole-digging rotary positioning shaft (1-5). The rear end of the hole-digging swing rod (1-7) is connected to an up-and-down swing type hole-digging implement (1). The hole-digging power shaft (1-9) is connected to a crank assembly that is in rolling cooperation with the top surface of the hole-digging swing rod (1-7).

[0027] The installation frame (2) includes two side plates (2-1) arranged vertically and spaced left and right; the up-and-down swing type hole-digging implement (1) includes a hanging plate (1-1) horizontally arranged between the two side plates, a hole-digging installation frame (1-8) fixedly connected to the rear end of the hole-digging swing rod (1-7), and a hole-digging shovel (1-10) connected to the bottom of the hole-digging installation frame (1-8). A hanging hole is provided in the middle of the hanging plate (1-1), and a hanging ring is provided on the rear side of the upper part of the hole-digging installation frame (1-8). A tension spring (1-2) is provided between the hanging hole and the hanging ring.

[0028] The hole-digging installation frame (1-8) includes a horizontal plate (1-8-5). A vertical plate (1-8-2) along the left-right direction is vertically and fixedly provided on the upper surface of the horizontal plate (1-8-5). The vertical plate (1-8-2) is connected to the rear end of the hole-digging swing rod (1-7) through a first bolt assembly (1-8-1). The vertical plate (1-8-2) and the horizontal plate (1-8-5) are connected and reinforced through a triangular rib plate. Two long slot holes (1-8-4) arranged left and right at intervals are provided on the horizontal plate (1-8-5) along the front-rear direction;

[0029] The hole-digging shovel (1-10) includes a hole-digging connecting plate (1-8-9) and a shovel surface mounting plate (1-8-6) arranged horizontally. The hole-digging connecting plate (1-8-9) is arranged on the bottom surface of the horizontal plate (1-8-5). The hole-digging connecting plate (1-8-9) is fixedly connected to the horizontal plate (1-8-5) through a second bolt assembly (1-8-3) passing through the long slot holes (1-8-4). The upper side of the shovel surface mounting plate (1-8-6) is fixedly connected to the rear side of the hole-digging connecting plate (1-8-9). Two rows of vertical long holes are provided on the shovel surface mounting plate (1-8-6). A shovel plate (1-8-7) is connected to the rear side surface of the shovel surface mounting plate (1-8-6) through a third bolt assembly (1-8-8) passing through the vertical long holes.

[0030] The shovel plate (1-8-7) is made by bending a carbon steel plate with a thickness of 5 mm and a semi-circular shape. It is bent along the vertical center line of the shovel plate with a bending angle of 120°. The left and right parts of the shovel plate after bending are symmetric about the bending line. The front side of the shovel plate is convex, and the rear side of the shovel plate is concave.

[0031] The crank assembly includes a bearing seat (1-3) installed on the inner side of one of the side plates (2-1). The pond-digging power shaft (1-9) is rotatably connected to the bearing seat (1-3) through a bearing installed in the bearing seat (1-3). The inner end of the pond-digging power shaft (1-9) is vertically connected with a crank (1-4). The other end of the crank (1-4) is connected with a pressure rod (1-11) parallel to the pond-digging power shaft (1-9). A roller (1-6) that is in rolling fit with the top surface of the pond-digging swing rod (1-7) is installed on the pressure rod (1-11).

[0032] The pond-digging chain drive mechanism (3) includes a pond-digging driving sprocket (3-1), a pond-digging chain (3-2), and a pond-digging driven sprocket (3-3). The pond-digging driving sprocket (3-1) is installed on the power input shaft (4), and the pond-digging driven sprocket (3-3) is installed on the pond-digging power shaft (1-9).

[0033] The working process of the present utility model is as follows: First, install the present utility model on a traction type transplanter. The front side of the installation frame (2) is fixedly connected to the frame (7) of the traction type transplanter through bolts. The two ends of the power input shaft (4) are rotatably connected to the left and right sides of the frame (7). The tractor drives the traction type transplanter to move forward. The ground wheel (5) rotates, and power is input into the power input shaft (4) through the ground wheel chain drive mechanism (6). The power input shaft (4) drives the pond-digging power shaft (1-9) to rotate through the pond-digging chain drive mechanism (3). The pond-digging power shaft (1-9) drives the crank (1-4) to rotate. The roller (1-6) on the pressure rod (1-11) that is vertically and fixedly connected to the crank (1-4) presses down on the pond-digging swing rod (1-7). The pond-digging swing rod (1-7) rotates downward with the pond-digging rotation positioning shaft (1-5) as the fulcrum. The shovel plate (1-8-7) of the pond-digging shovel (1-10) connected to the rear end of the pond-digging swing rod (1-7) enters the soil for pond-digging operation. After the crank (1-4) rotates and presses the pond-digging swing rod (1-7) to the lowest point, under the action of the tension spring (1-2), the pond-digging shovel (1-10) is quickly lifted. So that under the combined action of the forward movement and the up and down movement of the shovel plate (1-8-7) following the tractor, the pond openings dug by the shovel plate (1-8-7) are close to circular. By changing the tooth number ratio of the front and rear sprockets of the ground wheel chain drive mechanism (6), the transmission ratio between the ground wheel (5) and the power input shaft (4) can be changed, and further the distance between two adjacent pond openings dug can be changed.

[0034] The above embodiments illustrate the basic principles and features of the present utility model. However, the above only illustrates the preferred embodiments of the present utility model and is not limited by the said embodiments. Those of ordinary skill in the art, inspired by this patent, can also make many forms of deformation and improvement without departing from the purpose of the present utility model and the scope protected by the claims. These all fall within the protection scope of the present utility model. Therefore, the patent and protection scope of the present utility model shall be subject to the appended claims.

Claims

1. A tobacco pond-making device, characterized in that: The invention comprises a mounting frame (2), on which a power input shaft (4), a slugging power shaft (1-9) and a slugging rotary positioning shaft (1-5) are rotatably provided along the left-right horizontal direction. The slugging power shaft (1-9) is located in front of and below the power input shaft (4), and the slugging rotary positioning shaft (1-5) is located directly in front of the slugging power shaft (1-9). The power input shaft (4) and the slugging power shaft (1-9) are connected via a slugging chain transmission mechanism (3). A slugging swing rod (1-7) extending backward is rotatably connected to the slugging rotary positioning shaft (1-5), and a slugging swing rod (1-7) is connected to the rear end of the slugging swing rod (1-7) with an up-and-down swinging slugging device (1). The slugging power shaft (1-9) is connected to a crank assembly roll-fitted with the top surface of the slugging swing rod (1-7).

2. A tobacco pond beating device according to claim 1, characterized in that: The mounting frame (2) comprises two side plates (2-1) arranged vertically and spaced apart from each other. The vertical swinging pond digging tool (1) comprises a hanging plate (1-1) arranged horizontally between the two side plates, a pond digging mounting frame (1-8) fixedly connected to the rear end of the pond digging swing rod (1-7), and a pond digging shovel (1-10) connected to the bottom of the pond digging mounting frame (1-8). A hanging hole is provided in the middle of the hanging plate (1-1), a hanging ring is provided on the upper rear side of the pond digging mounting frame (1-8), and a tension spring (1-2) is provided between the hanging hole and the hanging ring.

3. A tobacco pond beating device according to claim 2, characterized in that: The pond-digging mounting frame (1-8) comprises a horizontal plate (1-8-5), a vertical plate (1-8-2) along the left-right direction is vertically fixed on the upper surface of the horizontal plate (1-8-5), the vertical plate (1-8-2) is connected to the rear end of the pond-digging swing rod (1-7) through a first bolt assembly (1-8-1), the vertical plate (1-8-2) and the horizontal plate (1-8-5) are connected and reinforced by a triangular rib plate, and two long slots (1-8-4) arranged at intervals on the left and right are opened on the horizontal plate (1-8-5) along the front-back direction; The pond digging shovel (1-10) comprises a horizontally arranged pond digging connection plate (1-8-9) and a shovel surface mounting plate (1-8-6); the pond digging connection plate (1-8-9) is arranged on the bottom surface of the horizontal plate (1-8-5); the pond digging connection plate (1-8-9) is fixedly connected to the horizontal plate (1-8-5) via a second bolt assembly (1-8-3) passing through a long slot hole (1-8-4); the upper side of the shovel surface mounting plate (1-8-6) is fixedly connected to the rear side of the pond digging connection plate (1-8-9); two rows of vertical long holes are formed on the shovel surface mounting plate (1-8-6); and the rear side of the shovel surface mounting plate (1-8-6) is connected to the shovel plate (1-8-7) via a third bolt assembly (1-8-8) passing through the vertical long holes.

4. A tobacco pond beating device according to claim 3, characterized in that: The shovel plate (1-8-7) is made of 5mm thick, semicircular carbon steel plate, bent along the vertical center line of the shovel plate with a bending angle of 120°. The left and right parts of the shovel plate after bending are symmetrical about the bending line. The front side of the shovel plate is convex, and the rear side of the shovel plate is concave.

5. A tobacco pond beating device according to claim 2, characterized in that: The crank assembly comprises a bearing seat (1-3) mounted on the inner side of one of the side plates (2-1); a datang power shaft (1-9) is rotatably connected to the bearing seat (1-3) via a bearing mounted in the bearing seat (1-3); a crank (1-4) is vertically connected to the inner end of the datang power shaft (1-9); a pressure rod (1-11) parallel to the datang power shaft (1-9) is connected to the other end of the crank (1-4); a roller (1-6) rolling-matched with the top surface of the datang swing rod (1-7) is mounted on the pressure rod (1-11).

6. A tobacco beating device according to claim 1, characterized in that: The chain transmission mechanism (3) comprises a driving sprocket (3-1), a chain (3-2) and a driven sprocket (3-3). The driving sprocket (3-1) is mounted on a power input shaft (4), and the driven sprocket (3-3) is mounted on a power shaft (1-9).

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