Cassava planter

Abstract

The utility model provides a cassava planter, include: main steel frame, walking wheel, cutter box, the both sides of main steel frame lower part are equipped with bearing seat respectively, is installed with first transmission shaft in bearing seat, walking wheel is connected with first transmission shaft one end, first transmission shaft other end is equipped with first sprocket, the cutter box has a plurality of, cutter box installs on the main steel frame respectively, be equipped with second transmission shaft on the cutter box, second transmission shaft penetrates cutter box, just second transmission shaft is connected with the gear inside cutter box, the second transmission shaft between cutter box is connected each other, be equipped with one -way sprocket on second transmission shaft, one -way sprocket is connected with first sprocket through first chain, the utility model discloses a one -way sprocket is set up on second transmission shaft, realizes the one -way transmission of power through one -way sprocket, can eliminate the torque that the speed difference of two walking wheels rotation speed is inconsistent causes second transmission shaft to improve the service life of second transmission shaft, improves the reliability of equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of mechanized cassava planting equipment, and in particular to a cassava planting machine. Background Technology

[0002] The current large-scale cultivation of cassava requires multiple processes, including ridging, trenching, cutting seeds, sowing, fertilizing, and covering with soil. Manual operation is inefficient and labor-intensive, and slow, making it difficult to meet the needs of large-scale planting, especially during busy seasons when the optimal planting time is easily missed. Parameters such as row spacing, plant spacing, and sowing depth are difficult to standardize, leading to unstable yields. To improve production efficiency, mechanized cassava planting equipment has been designed, such as the cassava planting machine for both flat and ridge planting disclosed in Chinese Patent Application No. 202110773252.8. This machine includes: a frame; a planting device installed at the bottom of the frame, comprising at least one planting mechanism, each of which includes, from front to back, a fertilizing furrow plow, a planting furrow plow, a seed cutter, and a soil covering device, with the fertilizing furrow plow and planting furrow plow staggered; the seed cutter located above the planting furrow plow; two ridge guards symmetrically arranged on the left and right sides of the planting furrow plow, each ridge guard's top hinged to the frame in a way that allows it to flip left and right; and a fertilizing device installed on the frame, with its outlet located at the rear of the fertilizing furrow plow. This cassava planter is equipped with two seed cutters, which are connected to the wheels via chains and drive shafts. The two seed cutters are also connected by a shaft. When the tractor pulls the planter, the wheels rotate, causing the seed cutters to rotate and perform the cutting operation. When the tractor pulls the planter to turn, the different turning radii result in different rotation amplitudes of the two wheels, leading to different rotation numbers of the connected seed cutters. This causes the connecting shaft between the seed cutters to be subjected to torque, potentially leading to shaft breakage. Therefore, a cassava planter is needed that incorporates a differential speed device between the wheels and the drive shaft. This device would eliminate the impact of the speed difference on the drive shaft when the two wheels rotate at different speeds, thus improving the reliability of the equipment. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a cassava planter, which incorporates a differential speed device between the walking wheels and the drive shaft. This device eliminates the impact of speed difference on the drive shaft when the two wheels rotate at different speeds, thereby improving the reliability of the equipment.

[0004] This utility model is achieved through the following technical solution:

[0005] This utility model proposes a cassava planting machine, comprising: a main steel frame, traveling wheels, and a blade box. Bearing seats are respectively provided on both sides of the lower part of the main steel frame, and a first drive shaft is installed inside the bearing seats. The traveling wheels are connected to one end of the first drive shaft, and a first sprocket is provided at the other end of the first drive shaft. Multiple blade boxes are provided, each mounted on the main steel frame. A second drive shaft is provided on each blade box, penetrating the blade box and connected to gears inside the blade box. The second drive shafts of different blade boxes are interconnected. A one-way sprocket is provided on the second drive shaft, and the one-way sprocket is connected to the first sprocket via a first chain.

[0006] Furthermore, the one-way sprocket includes an outer ring and an inner ring. The inner ring is fitted onto the second drive shaft. Ball bearings are provided between the outer ring and the inner ring. Multiple reverse teeth are provided inside the outer ring. One to four springs are provided on the outer circumference of the inner ring. The ends of the springs deflect outward under the action of elastic force.

[0007] Furthermore, the main steel frame is equipped with a fertilizer box drive mechanism, and the second drive shaft is equipped with a second sprocket. The second drive shaft is connected to the fertilizer box drive mechanism through a second chain.

[0008] Furthermore, the second drive shafts between the tool boxes are interconnected via universal joint couplings.

[0009] Furthermore, the cross-section of the second drive shaft is a regular polygon, and the one-way sprocket, the second sprocket, and the universal joint coupling are provided with through holes in the middle that are adapted to the cross-sectional shape of the second drive shaft. The one-way sprocket, the second sprocket, and the universal joint coupling are all connected to the second drive shaft by locking bolts.

[0010] Furthermore, a traction frame is provided at the front of the main steel frame, and the main steel frame is connected to the traction equipment through the traction frame.

[0011] The beneficial effects of this utility model are as follows: by setting a one-way sprocket on the second drive shaft, the one-way power transmission is realized through the one-way sprocket. When the rotation speeds of the two traveling wheels are inconsistent, the torque caused by the speed difference on the second drive shaft can be eliminated, thereby improving the service life of the second drive shaft and improving the reliability of the equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the lower part of the present invention;

[0014] Figure 3 This is a schematic diagram of the installation of the blade box of this utility model;

[0015] Figure 4This is a schematic diagram showing the connections between the various components of this utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the unidirectional sprocket of this utility model;

[0017] In the diagram: 1-Main steel frame, 2-Walking wheel, 3-Knife box, 4-Bearing seat, 5-First drive shaft, 6-First sprocket, 7-Second drive shaft, 8-One-way sprocket, 9-First chain, 10-Fertilizer box drive mechanism, 11-Second sprocket, 12-Second chain, 13-Universal joint coupling, 14-Traction frame, 81-Outer ring, 82-Inner ring, 83-Reverse tooth, 84-Spring. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Throughout the description, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of the stated features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0021] like Figures 1 to 5As shown, an embodiment of this utility model provides a cassava planter, including: a main steel frame 1, a traveling wheel 2, and a blade box 3. Bearing seats 4 are respectively provided on both sides of the lower part of the main steel frame 1. A first drive shaft 5 is installed inside the bearing seats 4. The traveling wheel 2 is connected to one end of the first drive shaft 5, and a first sprocket 6 is provided at the other end of the first drive shaft 5. Multiple blade boxes 3 are provided, each mounted on the main steel frame 1. A second drive shaft 7 is provided on each blade box 3, passing through the blade box 3 and connected to a gear inside the blade box 3. The second drive shafts 7 of the blade boxes 3 are interconnected. A one-way sprocket 8 is provided on the second drive shaft 7, and the one-way sprocket 8 is connected to the first sprocket 6 via a first chain 9.

[0022] The main steel frame 1 is used to support the various components of the cassava planter. The main steel frame 1 is connected to traction equipment such as tractors through the traction frame 14. When traction is performed, the walking wheels 2 will rotate, causing the first drive shaft 5 to rotate together with the walking wheels 2. The first sprocket 6 on the first drive shaft 5 drives the one-way sprocket 8 and the second drive shaft 7 to rotate through the chain, causing the gear in the blade box 3 to rotate, thereby driving the blade in the blade box 3 to rotate. After the cassava is cut into sections, the cassava sections fall from the blade box 3 into the trenches opened by the cassava planter, and then are covered with soil to achieve automatic planting.

[0023] When the vehicle turns, the two wheels 2 have different turning radii, resulting in a speed difference between them. To prevent the two second drive shafts 7 from twisting against each other, which could cause the drive shafts to break or the universal joint coupling 13 to be damaged, this device is equipped with a one-way sprocket 8 on the second drive shaft 7. The one-way sprocket 8 achieves one-way transmission in the same way as the freewheel of a bicycle. By controlling the direction of power transmission through the one-way sprocket 8, the power of the first drive shaft 5 can be transmitted to the second drive shaft 7 through the first sprocket 6 and the one-way sprocket 8 in the same rotational direction. When the speed of the second drive shaft 7 is higher than that of the first drive shaft 5, the outer ring 81 and the inner ring 82 of the one-way sprocket 8 can rotate relative to each other, causing the one-way sprocket 8 to "free-spin," achieving an effect similar to the rear wheel not being able to drive the front chainring when a bicycle is coasting. This eliminates the wheel speed difference caused by the difference in turning radius when turning, avoids the second drive shaft 7 being subjected to excessive torque, and improves the service life of the equipment.

[0024] In one specific embodiment, the one-way sprocket 8 includes an outer ring 81 and an inner ring 82. The inner ring 82 is fitted on the second drive shaft 7. There are balls between the outer ring 81 and the inner ring 82. The outer ring 81 has multiple reverse teeth 83 inside. The inner ring 82 has 1 to 4 springs 84 on its outer periphery. The ends of the springs 84 deflect outward under the action of elastic force. The outer ring 81 and the inner ring 82 can rotate smoothly coaxially under the action of the balls. When the outer ring 81 rotates counterclockwise, the spring 84 will press against the reverse tooth 83, thus preventing relative sliding between the outer ring 81 and the inner ring 82. This allows the inner ring 82 to rotate counterclockwise along with the outer ring 81, thus transmitting power. If there is a wheel speed difference, the inner ring 82 rotates counterclockwise at a higher speed than the outer ring 81. At this time, the inner ring 82 drives the spring 84 to rotate in the outer ring 81. The spring 84 swings under the push of the reverse tooth 83 and cannot transmit power, allowing the outer ring 81 and the inner ring 82 to idle, thereby eliminating the speed difference and preventing the second drive shaft 7 from being subjected to torque caused by the wheel speed difference.

[0025] In a preferred embodiment, the main steel frame 1 is provided with a fertilizer box drive mechanism 10, and the second drive shaft 7 is provided with a second sprocket 11. The second drive shaft 7 is connected to the fertilizer box drive mechanism 10 through a second chain 12. The second drive shaft 7 drives the fertilizer box drive mechanism 10 to provide power to the fertilizer box, so that the fertilizer particles in the fertilizer box can fall smoothly.

[0026] Preferably, the second drive shafts 7 between the tool boxes 3 are connected to each other by a universal joint coupling 13. The universal joint coupling 13 can eliminate the torsional shear force caused by the dimensional deviation of the coaxiality when assembling the two tool boxes 3, prevent the second drive shafts 7 from breaking, and improve the reliability of the equipment.

[0027] Preferably, the cross-section of the second drive shaft 7 is a regular polygon. The one-way sprocket 8, the second sprocket 11, and the universal joint coupling 13 are provided with through holes in the middle that are adapted to the cross-sectional shape of the second drive shaft 7. The one-way sprocket 8, the second sprocket 11, and the universal joint coupling 13 are all connected to the second drive shaft 7 by locking bolts. After the one-way sprocket 8, the second sprocket 11, and the universal joint coupling 13 are fitted onto the second drive shaft 7 through the through holes, slippage during transmission can be avoided, ensuring effective power transmission. After the locking bolts are tightened, the sprockets or couplings can be prevented from sliding on the second drive shaft 7, improving the reliability of the connection.

[0028] In a preferred embodiment, a traction frame 14 is provided at the front of the main steel frame 1. The main steel frame 1 is connected to the traction equipment through the traction frame 14. The traction frame 14 is used to connect the main steel frame 1 to traction equipment such as tractors, so that the device can be tractioned by a tractor to realize mechanized cassava planting operations.

[0029] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A cassava planting machine, characterized in that, include: The main steel frame (1), the traveling wheels (2), and the tool box (3) are provided with bearing seats (4) on both sides of the lower part of the main steel frame (1). A first drive shaft (5) is installed in the bearing seat (4). The traveling wheels (2) are connected to one end of the first drive shaft (5). A first sprocket (6) is provided at the other end of the first drive shaft (5). There are multiple tool boxes (3). The tool boxes (3) are respectively installed on the main steel frame (1). A second drive shaft (7) is provided on the tool box (3). The second drive shaft (7) passes through the tool box (3) and is connected to the gear inside the tool box (3). The second drive shafts (7) between the tool boxes (3) are connected to each other. A one-way sprocket (8) is provided on the second drive shaft (7). The one-way sprocket (8) is connected to the first sprocket (6) through a first chain (9).

2. The cassava planting machine according to claim 1, characterized in that, The one-way sprocket (8) includes an outer ring (81) and an inner ring (82). The inner ring (82) is fitted on the second drive shaft (7). There are balls between the outer ring (81) and the inner ring (82). The outer ring (81) has multiple reverse teeth (83) inside. The inner ring (82) has 1 to 4 springs (84) on its outer circumference. The ends of the springs (84) deflect outward under the action of elastic force.

3. The cassava planting machine according to claim 1, characterized in that, The main steel frame (1) is provided with a fertilizer box drive mechanism (10), and the second drive shaft (7) is provided with a second sprocket (11). The second drive shaft (7) is connected to the fertilizer box drive mechanism (10) through a second chain (12).

4. A cassava planting machine according to claim 3, characterized in that, The second drive shafts (7) between the tool boxes (3) are connected to each other by a universal joint coupling (13).

5. A cassava planting machine according to claim 4, characterized in that, The cross-section of the second drive shaft (7) is a regular polygon. The one-way sprocket (8), the second sprocket (11), and the universal joint coupling (13) are provided with through holes in the middle that are adapted to the cross-sectional shape of the second drive shaft (7). The one-way sprocket (8), the second sprocket (11), and the universal joint coupling (13) are all connected to the second drive shaft (7) by locking bolts.

6. A cassava planting machine according to claim 1, characterized in that, The main steel frame (1) is provided with a traction frame (14) at the front, and the main steel frame (1) is connected to the traction equipment through the traction frame (14).

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