Soil turning system suitable for high-water-content soil

Abstract

The invention discloses a soil turning system suitable for high-water-content soil, and relates to the technical field of agricultural soil turning. The upper end of the vertical connecting rod is connected with the crankshaft; one end of the horizontal connecting rod assembly is hinged to the lower end of the vertical connecting rod; the iron shovel is detachably mounted at the lower end of the vertical connecting rod; the crankshaft rotates to drive the vertical connecting rod to swing, the vertical connecting rod drives the iron shovel to do annular motion, shoveling action with large force can be borne through the action of the connecting rod, motion track deformation of the iron shovel is effectively avoided, and meanwhile the included angle between the iron shovel and the horizontal plane is changed. The iron shovel cuts the ground through common transmission of the vertical connecting rod and the horizontal connecting rod assembly. By changing the length of the horizontal connecting rod assembly, indirectly changing the cutting angle when the iron shovel is in contact with the land and repeatedly expanding and contracting the thick-wall air bag and cooperating with centrifugal force generated by autorotation of the thick-wall air bag, clay attachment can be effectively avoided, and the soil turning shovel adapts to soil turning operation of high-water-content soil.

Description

Technical Field

[0001] This invention relates to the field of agricultural tillage machinery technology, and its main application is tillage operations in soils with high moisture content. Background Technology

[0002] The spatial and temporal distribution of precipitation across the country has a significant impact on agricultural production. For example, the recent continuous rain in the Huanghuai and Jianghuai regions has led to high soil moisture content in some farmland, severely affecting the autumn harvest and winter wheat sowing progress. Every year before sowing winter wheat and other crops, the land needs to be turned over. The most common tillage machinery is the rotary tiller, as described in applications CN202210317883.3 and CN202210227249.0. This structure uses the rotation of sheet-like rotating walls to break up and turn the soil, making it unsuitable for soils with high moisture content. High soil moisture content results in soil adhering to the rotary tiller's arms, which is difficult to clean. Furthermore, it has the following drawbacks: 1. The sheet-like rotating wall structure is relatively weak, making it difficult to turn over soils with high moisture content, easily deforming, and unable to perform effective tillage; 2. The tilling depth of the rotary tiller is very limited, generally only the length of the sheet-like rotating wall. Therefore, a mechanism specifically designed for tilling high-moisture-content soils has been developed. Summary of the Invention

[0003] To address the above deficiencies, this invention provides a soil turning system suitable for soils with high moisture content, thus solving the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A soil turning system suitable for soils with high moisture content includes a transmission box, crankshaft, connecting frame, and shovel, and also includes; The main frame is fixedly connected to the connecting frame; The vertical connecting rod connects to the crankshaft at its upper end. The horizontal linkage assembly is hinged at one end to the lower end of the vertical linkage and at the other end to the main frame. The shovel is detachably mounted on the lower end of the vertical connecting rod; the crankshaft rotation drives the vertical connecting rod to swing, and the vertical connecting rod drives the shovel to make a circular motion, while the angle between the shovel and the horizontal plane changes; the shovel cuts the ground through the joint transmission of the vertical connecting rod and the horizontal connecting rod assembly.

[0005] Furthermore, the main frame includes side plates, which are provided in multiple vertical positions. A rod is provided at the upper end of the side plate and a rod is provided at the lower end of the side plate. Rods one and two are used to connect the side plates. One end of the horizontal connecting rod assembly is hinged to the lower end of the side plate. The transmission box and crankshaft are installed at the center of the side plate, and the crankshaft is installed on the output ends on both sides of the transmission box.

[0006] Furthermore, the length of the horizontal linkage assembly remains unchanged. The horizontal linkage assembly is a C-shaped connector, with one end of the C-shaped connector hinged to the lower end of the vertical linkage and the other end hinged to the side plate.

[0007] Furthermore, the horizontal linkage assembly has a variable length and is a hydraulic cylinder. One end of the hydraulic cylinder is hinged to the lower end of the vertical linkage, and the other end is hinged to the side plate.

[0008] Furthermore, the horizontal linkage assembly has a variable length and is a mechanical adjustment part. The mechanical adjustment part includes an outer sleeve, which is hinged to the lower end of the side plate on both sides. An inner sleeve is installed inside the outer sleeve. One end of the inner sleeve is hinged to the lower end of the vertical linkage, and the other end of the inner sleeve has a threaded hole. The inner sleeve and the outer sleeve are slidably connected and both have rectangular cross-sections. A bearing is installed at one end of the outer sleeve, and a threaded shaft that meshes with the threaded hole is installed on the inner ring of the bearing. A liquid drive motor is installed on the main frame, a worm gear is installed on the rotating end of the liquid drive motor, a worm wheel that meshes with the worm gear is also installed on the main frame, and a universal joint is installed between the worm wheel and the threaded shaft. The number of universal joint sections is not less than 3, the transmission angle of adjacent universal joints is not less than 90 degrees, and the universal joints are arranged in a W shape.

[0009] Furthermore, an L-shaped frame is installed on the side plate, and a rotating shaft is installed at the lower end of the L-shaped frame. A transmission belt is installed between the rotating shaft and the crankshaft. A cleaning brush corresponding to the shovel is installed on the rotating shaft. The cleaning brush is located above the highest point of the shovel and is in contact with the surface of the shovel.

[0010] Furthermore, the rotating shaft is a hollow structure, with a rotary sealing valve installed at one end and connected to an external air compressor. A round hole is opened on the surface of the rotating shaft, and a thick-walled airbag is installed in the round hole. The thick-walled airbag can be inflated.

[0011] Furthermore, a rectangular groove is opened at the lower end of the vertical connecting rod, and the shovel is inserted into the rectangular groove. The shovel is fixed to the vertical connecting rod by bolts.

[0012] Furthermore, the crankshaft includes a crank and a connecting rod journal. The connecting rod journal is connected to the upper end of the vertical connecting rod. The connecting rod journal makes a circular motion, and the length of the crank determines the diameter of the circular motion. When the length of the horizontal connecting rod assembly is the same as the length of the crank, the angle between the shovel and the ground is 90 degrees. When the length of the horizontal connecting rod assembly is greater than the length of the crank, the angle between the shovel and the ground is less than 90 degrees. When the length of the horizontal connecting rod assembly is less than the length of the crank, the angle between the shovel and the ground is greater than 90 degrees.

[0013] Furthermore, the soil turning system suitable for high moisture content soils can be detachably installed at the rear end of the soil turning system.

[0014] The beneficial effects of this invention are: by driving the vertical connecting rod and the horizontal connecting rod assembly to swing through the crankshaft rotation, the shovel can be driven to make irregular circular motion. Through the action of the connecting rod, it can bear a large force of shoveling action, effectively avoid deformation of the shovel's movement trajectory, and can quickly turn the ground. By designing different lengths of vertical connecting rods, the soil turning depth can be effectively increased, and the applicability can be improved. By changing the length of the horizontal linkage assembly, the cutting angle when the shovel contacts the ground can be indirectly changed, thus adapting to soils of different hardness. The cleaning brush has been replaced with a thick-walled airbag. The thick-walled airbag expands and contracts repeatedly, and the centrifugal force generated by the rotation of the thick-walled airbag can effectively prevent clay from adhering to the thick-walled airbag, making it suitable for turning soil in high-moisture soil. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the soil turning system applicable to high moisture content soils as described in this invention; Figure 2 This is a schematic diagram of a U-shaped connector; Figure 3 This is a schematic diagram of the outer tube; Figure 4 This is a cross-sectional view of the threaded shaft; Figure 5 This is a schematic diagram of a hydraulic cylinder; Figure 6 This is a schematic diagram of the crankshaft; Figure 7 This is a schematic diagram of the cross-section of the rotating shaft; Figure 8 This is an enlarged diagram of a shovel; Figure 9 This is a diagram showing the status of the shovel. Figure 1 ; Figure 10 This is a diagram showing the status of the shovel. Figure 2 ; Figure 11 This is a diagram showing the status of the shovel. Figure 3 ; Figure 12 This is a diagram showing the status of the shovel. Figure 4 ; In the diagram, 1. Transmission box; 2. Crankshaft; 3. Connecting frame; 4. Shovel; 5. Main frame; 6. Vertical connecting rod; 7. Horizontal connecting rod assembly; 51. Side plate; 52. Rod 1; 53. Rod 2; 711. C-shaped connector; 721. Hydraulic cylinder; 731. Outer sleeve; 732. Inner sleeve; 733. Threaded hole; 734. Bearing 1; 735. Threaded shaft; 736. Liquid drive motor; 737. Worm gear; 739. Worm wheel; 740. Universal joint; 56. L-shaped frame; 57. Rotating shaft; 54. Transmission belt; 55. Cleaning brush; 531. Hollow structure; 532. Rotary sealing valve; 533. Round hole; 534. Thick-walled airbag; 61. Rectangular groove; 21. Crank; 22. Connecting rod journal. Detailed Implementation

[0016] This application provides a soil turning system suitable for soils with high moisture content. Please refer to [reference needed]. Figure 1 - The diagram includes a transmission box 1, a crankshaft 2, a connecting frame 3, and an iron shovel 4, and also includes; The main frame 5 is fixedly connected to the connecting frame 3; Vertical connecting rod 6, the upper end of which connects to crankshaft 2; The horizontal link assembly 7 is hinged at one end to the lower end of the vertical link 6 and at the other end to the main frame 5; The shovel 4 is detachably mounted on the lower end of the vertical connecting rod 6; the crankshaft 2 rotates, causing the vertical connecting rod 6 to swing, and the vertical connecting rod 6 drives the shovel 4 to make a circular motion, while the angle between the shovel 4 and the horizontal plane changes; the shovel 4 cuts the ground through the joint transmission of the vertical connecting rod 6 and the horizontal connecting rod assembly 7.

[0017] In practical applications, before use, this application is first mounted on the tractor via the connecting frame 3, and the transmission box 1 is connected to the tractor's power system. The output ends on both sides of the transmission box 1 are fixedly connected to the crankshaft 2. When the crankshaft 2 rotates, it drives the vertical connecting rod 6 to move up and down. With the support of the horizontal connecting rod assembly 7, the crankshaft 2 is in a state of continuous rotation, and the vertical connecting rod 6 is in a state of up and down movement (the angle will also change). The horizontal connecting rod assembly 7 is in a state of reciprocating swing around one end. With the support of the vertical connecting rod 6 and the horizontal connecting rod assembly 7, the shovel 4 performs irregular circular motion. When the shovel 4 contacts the ground, it can cut the ground, thereby achieving the purpose of turning the soil. This application is different from traditional rotary drilling machines. This application has high structural strength and greater force, and is suitable for hard clay soil.

[0018] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The main frame 5 includes side plates 51, which are provided in multiple vertical positions. A first rod 52 is provided at the upper end of the side plate 51, and a second rod 53 is provided at the lower end of the side plate 51. The first rod 52 and the second rod 53 are used to connect the side plates 51. One end of the horizontal connecting rod assembly 7 is hinged to the lower end of the side plate 51. The transmission box 1 and the crankshaft 2 are installed at the center of the side plate 51, and the crankshaft 2 is installed on the output ends on both sides of the transmission box 1.

[0019] In practical applications, the main frame 5, rod 1 52 and rod 2 53 can form a whole with high structural strength, which facilitates the rotation of crankshaft 2. The number of side plates 51 and shovels 4 can be set according to actual needs. In this application, there are 8 shovels.

[0020] Embodiment 1 of the horizontal linkage assembly 7, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4The length of the horizontal link assembly 7 remains unchanged. The horizontal link assembly 7 is a C-shaped connector 711. One end of the C-shaped connector 711 is hinged to the lower end of the vertical link 6, and the other end is hinged to the side plate 51.

[0021] In practical applications, in this embodiment, the horizontal linkage assembly 7 is a simple C-shaped connector 711, which is low in cost and has a stable structure, but cannot adjust the cutting angle of the shovel.

[0022] Embodiment 2 of the horizontal linkage assembly 7, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The horizontal linkage assembly 7 has a variable length and is a hydraulic cylinder 721. One end of the hydraulic cylinder 721 is hinged to the lower end of the vertical linkage 6, and the other end is hinged to the side plate 51.

[0023] In practical applications, the horizontal linkage assembly 7 is set as a hydraulic cylinder 721. One end of the cylinder 721 is hinged to the lower end of the vertical linkage 6, and the other end is hinged to the side plate 51. By extending and retracting the hydraulic cylinder 721, the distance between the lower end of the vertical linkage 6 and the side plate 51 can be changed, thereby changing the swing amplitude of the hydraulic cylinder 721 and indirectly changing the cutting angle when the shovel 4 contacts the ground.

[0024] Embodiment 3 of the horizontal linkage assembly 7, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The horizontal linkage assembly 7 has a variable length and is a mechanical adjustment part. The mechanical adjustment part includes an outer sleeve 731. The two sides of the outer sleeve 731 are hinged to the lower end of the side plate 51. An inner sleeve 732 is installed inside the outer sleeve 731. One end of the inner sleeve 732 is hinged to the lower end of the vertical linkage 6. The other end of the inner sleeve 732 has a threaded hole 733. The inner sleeve 732 and the outer sleeve 731 are slidably connected and both have rectangular cross sections. A bearing 734 is installed at one end of the outer sleeve 731. A threaded shaft 735 that meshes with the threaded hole 733 is installed on the inner ring of the bearing 734. A liquid drive motor 736 is installed on the main frame 5. A worm gear 737 is installed on the rotating end of the liquid drive motor 736. A worm wheel 739 that meshes with the worm gear 737 is also installed on the main frame 5. A universal joint 740 is installed between the worm wheel 739 and the threaded shaft 735. The universal joint 740 has no less than 3 sections, and the transmission angle between adjacent universal joints is no less than 90 degrees. The universal joints 740 are arranged in a W shape.

[0025] In practical applications, the power input end of the liquid drive motor 736 can be connected to the tractor. The rotation of the liquid drive motor 736 can drive the worm 737 to rotate, and the rotation of the worm 737 can simultaneously drive multiple worm wheels 739 to rotate. The worm wheels 739 drive the threaded shaft 735 to rotate through the universal joint 740. By setting the universal joint 740 to have no less than 3 sections and the transmission angle of adjacent universal joints to be no less than 90 degrees, the universal joint 740 can be prevented from getting stuck. The threaded shaft 735 is rotatably connected to the outer sleeve 731 via bearing 734, but the threaded shaft 735 and the outer sleeve 731 cannot move relative to each other. The rotation of the threaded shaft 735 can drive the inner sleeve 732 to move back and forth, thereby achieving the purpose of adjusting the length of the horizontal connecting rod assembly 7.

[0026] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 An L-shaped frame 56 is installed on the side plate 51. A rotating shaft 57 is installed at the lower end of the L-shaped frame 56. A transmission belt 54 is installed between the rotating shaft 57 and the crankshaft 2. A cleaning brush 55 corresponding to the shovel 4 is installed on the rotating shaft 57. The cleaning brush 55 is located above the highest point of the shovel 4 and is in contact with the surface of the shovel 4.

[0027] In practical applications, the L-shaped frame 56 supports the rotating shaft 57, which can rotate. A transmission belt 54 is installed between one end of the rotating shaft 57 and the crankshaft 2. The transmission belt 54 can indirectly drive the rotating shaft 57 to rotate. The rotating shaft 57 drives the cleaning brush 55 to rotate. When the surface of the shovel 4 comes into contact with the cleaning brush 55, the surface of the shovel 4 can be cleaned.

[0028] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The rotating shaft 57 is a hollow structure 531. A rotary sealing valve 532 is installed at one end of the rotating shaft 57 and is connected to an external air compressor. A round hole 533 is opened on the surface of the rotating shaft 57. A thick-walled airbag 534 is installed on the round hole 533. The thick-walled airbag 534 can be inflated.

[0029] In practical applications, to prevent clay from adhering to the cleaning brush 55, the cleaning brush 55 is replaced with a thick-walled airbag 534. An external air compressor fills the thick-walled airbag 534 with high-pressure air, causing the thick-walled airbag 534 to expand and contract repeatedly. Combined with the centrifugal force generated by the rotation of the thick-walled airbag 534, it can effectively prevent clay from adhering to the thick-walled airbag 534. The hollow structure 531 can transmit air, and the air delivery pipe of the hollow structure 531 can be prevented from getting tangled by the action of the rotary sealing valve 532.

[0030] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The vertical connecting rod 6 has a rectangular groove 61 at its lower end. The shovel 4 is inserted into the rectangular groove 61 and is fixed to the vertical connecting rod 6 with bolts.

[0031] In practical applications, the rectangular groove 61 facilitates the replacement of the shovel 4 while ensuring the shovel 4 remains in a more stable state.

[0032] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The crankshaft 2 includes a crank 21 and a connecting rod journal 22. The connecting rod journal 22 is connected to the upper end of the vertical connecting rod 6. The connecting rod journal 22 makes a circular motion. The length of the crank 21 determines the diameter of the circular motion. When the horizontal connecting rod assembly 7 is the same length as the crank 21 and the horizontal connecting rod assembly 7 is horizontal, the angle between the shovel 4 and the ground is 90 degrees. When the length of the horizontal connecting rod assembly 7 is greater than the length of the crank 21, the angle between the shovel 4 and the ground is less than 90 degrees. When the length of the horizontal connecting rod assembly 7 is less than the length of the crank 21, the angle between the shovel 4 and the ground is greater than 90 degrees.

[0033] In practical applications, in order to be more suitable for different working conditions; When the soil is loose, the length of the horizontal linkage assembly 7 can be controlled so that the shovel 4 is in a vertical position when it contacts the ground, and the soil can be turned more deeply at this time. When the soil is hard, when the length of the horizontal connecting rod assembly 7 is less than the length of the crank 21, the angle between the shovel 4 and the ground is greater than 90 degrees. At this time, the shovel 4 is moving in the direction of the connecting frame 3. When the shovel 4 comes into contact with the soil, the whole body also moves in the direction of the soil turning action, which reduces the horizontal force area and reduces the turning depth. When the soil is very hard, when the length of the horizontal connecting rod assembly 7 is greater than the length of the crank 21, the angle between the shovel 4 and the ground is less than 90 degrees. At this time, the orientation of the shovel 4 is opposite to the moving direction of the connecting frame 3. When the shovel 4 comes into contact with the soil, the whole body moves in the opposite direction to the soil turning action, reducing the horizontal force area. At the same time, the movement of the shovel 4 itself also offsets part of the force.

[0034] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The soil turning system, suitable for soils with high moisture content, can be detachably installed at the rear end of the soil turning system.

[0035] In practical applications, the mechanism described in this application can be installed at the rear end of a tractor.

Claims

1. A soil turning system suitable for high moisture content soils, comprising a transmission box (1), a crankshaft (2), a connecting frame (3), and a shovel (4), characterized in that, Also includes; The main frame (5) is fixedly connected to the connecting frame (3); The vertical connecting rod (6) is connected to the crankshaft (2) at its upper end; The horizontal link assembly (7) is hinged at one end to the lower end of the vertical link (6) and at the other end to the main frame (5); The shovel (4) is detachably installed at the lower end of the vertical connecting rod (6); the crankshaft (2) rotates and drives the vertical connecting rod (6) to swing, and the vertical connecting rod (6) drives the shovel (4) to make a circular motion. At the same time, the angle between the shovel (4) and the horizontal plane changes; the shovel (4) cuts the ground through the joint transmission of the vertical connecting rod (6) and the horizontal connecting rod assembly (7).

2. The soil turning system for high moisture content soils according to claim 1, characterized in that, The main frame (5) includes a side plate (51), which is provided in multiple vertical positions. The upper end of the side plate (51) is provided with a rod (52), and the lower end of the side plate (51) is provided with a rod (53). The rod (52) and the rod (53) are used to connect the side plate (51). One end of the horizontal connecting rod assembly (7) is hinged to the lower end of the side plate (51). The transmission box (1) and the crankshaft (2) are installed at the center of the side plate (51), and the crankshaft (2) is installed on the output ends on both sides of the transmission box (1).

3. The soil turning system for high moisture content soils according to claim 2, characterized in that, The horizontal link assembly (7) has a constant length. The horizontal link assembly (7) is a C-shaped connector (711). One end of the C-shaped connector (711) is hinged to the lower end of the vertical link (6), and the other end is hinged to the side plate (51).

4. The soil turning system for high moisture content soils according to claim 2, characterized in that, The horizontal linkage assembly (7) has a variable length. The horizontal linkage assembly (7) is a hydraulic cylinder (721). One end of the hydraulic cylinder (721) is hinged to the lower end of the vertical linkage (6), and the other end is hinged to the side plate (51).

5. The soil turning system for high moisture content soils according to claim 2, characterized in that, The horizontal linkage assembly (7) has a variable length and is a mechanical adjustment part. The mechanical adjustment part includes an outer sleeve (731). The two sides of the outer sleeve (731) are hinged to the lower end of the side plate (51). An inner sleeve (732) is installed inside the outer sleeve (731). One end of the inner sleeve (732) is hinged to the lower end of the vertical linkage (6). The other end of the inner sleeve (732) has a threaded hole (733). The inner sleeve (732) and the outer sleeve (731) are slidably connected and both have rectangular cross sections. A bearing (734) is installed at one end of the outer sleeve (731). A threaded shaft (735) that meshes with the threaded hole (733) is installed on the inner ring of the bearing (734). A liquid drive motor (736) is installed on the main frame (5). A worm gear (737) is installed on the rotating end of the liquid drive motor (736). A worm wheel (739) that meshes with the worm gear (737) is also installed on the main frame (5). A universal joint (740) is installed between the worm wheel (739) and the threaded shaft (735). The universal joint (740) has no less than 3 sections. The transmission angle of adjacent universal joints is no less than 90 degrees. The universal joints (740) are arranged in a W shape.

6. The soil turning system for high moisture content soils according to any one of claims 3-5, characterized in that, An L-shaped frame (56) is installed on the side plate (51). A rotating shaft (57) is installed at the lower end of the L-shaped frame (56). A transmission belt (54) is installed between the rotating shaft (57) and the crankshaft (2). A cleaning brush (55) corresponding to the shovel (4) is installed on the rotating shaft (57). The cleaning brush (55) is located above the highest point of the shovel (4) and contacts the surface of the shovel (4).

7. The soil turning system for high moisture content soils according to claim 6, characterized in that, The rotating shaft (57) is a hollow structure (531). A rotary sealing valve (532) is installed at one end of the rotating shaft (57) and is connected to an external air compressor. A round hole (533) is opened on the surface of the rotating shaft (57). A thick-walled airbag (534) is installed on the round hole (533). The thick-walled airbag (534) can expand.

8. The soil turning system for high moisture content soils according to claim 7, characterized in that, A rectangular groove (61) is opened at the lower end of the vertical connecting rod (6), and the shovel (4) is inserted into the rectangular groove (61). The shovel (4) and the vertical connecting rod (6) are fixed together by bolts.

9. The soil turning system for high moisture content soils according to claim 4 or 5, characterized in that, The crankshaft (2) includes a crank (21) and a connecting rod journal (22). The connecting rod journal (22) is connected to the upper end of the vertical connecting rod (6). The connecting rod journal (22) makes a circular motion. The length of the crank (21) determines the diameter of the circular motion. When the length of the horizontal connecting rod assembly (7) is the same as that of the crank (21), the angle between the shovel (4) and the ground is 90 degrees. When the length of the horizontal connecting rod assembly (7) is greater than the length of the crank (21), the angle between the shovel (4) and the ground is less than 90 degrees. When the length of the horizontal connecting rod assembly (7) is less than the length of the crank (21), the angle between the shovel (4) and the ground is greater than 90 degrees.

10. A soil turning system, comprising a soil turning system suitable for high moisture content soils as described in any one of claims 1-5, 7, and 8, characterized in that, The soil turning system, suitable for soils with high moisture content, can be detachably installed at the rear of the soil turning system.

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