Rotary cultivator convenient for adjusting plowing depth

Abstract

The utility model relates to a rotary cultivator convenient to adjust plowing depth, which comprises a rotary cultivator shell, lifting connecting plates are arranged on the left side and the right side of the rotary cultivator shell in a sliding way, a rotating roller is movably arranged between the two lifting connecting plates, and a lifting component is movably arranged in the rotary cultivator shell. According to the rotary cultivator convenient to adjust the plowing depth, a lifting assembly is arranged, a first transmission belt synchronously drives a first rotating shaft to rotate, the first rotating shaft drives a threaded rotating rod to rotate, and due to limiting of a lifting plate and a hinge block, a first threaded block and a second threaded block are in threaded connection to the outer surface of the threaded rotating rod; when the first threaded block and the second threaded block face the corresponding directions, the inclination angle of the first hinge rod and the inclination angle of the second hinge rod are increased, meanwhile, the lifting plate is pushed downwards, when the lifting plate descends, the lifting connecting plate is synchronously driven to descend, and the rotating roller and the rotary tillage blade are driven to descend in the descending process of the lifting connecting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary tillers, in particular to a rotary tiller which is convenient for adjusting the tilling depth. Background Art

[0002] A rotary tiller is a driven soil cultivation machine with rotating blades as working parts, also known as a rotary tiller. It has the functions of breaking the plow bottom layer, restoring the soil tillage layer structure, improving the soil's ability to store water and retain moisture, eliminating some weeds, reducing pests and diseases, leveling the surface, and improving the standards of agricultural mechanized operations. The rotary tiller frame is fixedly installed on the tractor and the tractor drives the rotary tiller frame to move, so that the rotary tiller cutters on the rotary tiller frame can till the ground. In daily rotary tillage work, it is often necessary to adjust the rotary tillage depth according to different working environments.

[0003] According to a rotary tiller with a fertilization function mentioned in the utility model patent with Chinese patent application number 202020057464.7, the rotary tiller with a fertilization function is convenient for turning over and loosening the soil of the crop field when in use, and it is also convenient for spreading fertilizer into the land, thereby reducing manpower consumption and improving work efficiency. However, the rotary tiller with a fertilization function cannot adjust the height of the rotary tiller blade independently during use, resulting in the inability to adjust the rotary tillage depth according to different working environments during use. Therefore, it is necessary to propose a rotary tiller that is convenient for adjusting the plowing depth to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a rotary tiller that is easy to adjust the tillage depth, has the advantages of being able to adjust the rotary tillage depth individually, and solves the problem that the existing rotary tillers cannot adjust the rotary tillage depth individually.

[0005] To achieve the above object, the utility model provides the following technical solution: a rotary tiller for adjusting the plowing depth, comprising a rotary tiller housing, both left and right sides of the rotary tiller housing are slidably mounted with lifting connecting plates, a roller is movably mounted between the two lifting connecting plates, a rotary tilling blade is mounted outside the roller, and a lifting assembly is movably mounted inside the rotary tiller housing;

[0006] The lifting assembly includes a threaded rotating rod, the external thread of the threaded rotating rod is connected to a first threaded block and a second threaded block, the interiors of the first threaded block and the second threaded block are respectively hingedly connected to a first hinged rod and a second hinged rod, the bottom ends of the first hinged rod and the second hinged rod are hingedly connected to a hinge block, and the bottom of the hinge block is fixedly connected to a lifting plate.

[0007] Furthermore, both left and right side surfaces of the lifting plate are fixedly connected with lifting connecting plates, and the lifting connecting plates penetrate the rotary tiller housing.

[0008] Furthermore, a mounting assembly is installed on the top of the rotary tiller housing, and a furrowing plow is installed on the bottom of the rotary tiller housing.

[0009] Furthermore, the right end of the threaded rotating rod is fixedly connected to a first rotating shaft, and the external transmission of the first rotating shaft is connected to a first transmission belt.

[0010] Furthermore, a second rotating shaft and a third rotating shaft are movably installed on the left side surface of the lifting connecting plate on the left side, the external transmission of the second rotating shaft is connected with a second transmission belt and a third transmission belt, the other end of the third transmission belt is internally connected to the outside of the third rotating shaft, and one end of the third rotating shaft is fixedly connected to a roller.

[0011] Furthermore, a positioning pulley is fixedly connected to the inner side of the two lifting connecting plates, and the positioning pulley is slidably installed on the outside of the rotary tiller housing. A limiting groove is set on the top of the right lifting connecting plate, and limiting sliders are installed on the left and right sides of the lifting plate. The lifting plate is slidably installed on the inner wall of the rotary tiller housing through the limiting slider.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. The rotary tiller which is convenient for adjusting the plowing depth is provided with a lifting component. When in use, the driving machine is started by the overall control of the rotary tiller to drive the first transmission belt to rotate, and the first transmission belt will synchronously drive the first rotating shaft to rotate, and the first rotating shaft will drive the threaded rotating rod to rotate. Due to the limitation of the lifting plate and the hinge block, the first threaded block and the second threaded block will be threadedly connected to the outer surface of the threaded rotating rod. When the first threaded block and the second threaded block are respectively facing corresponding directions, the inclination angle of the first hinge rod and the second hinge rod will increase and push the lifting plate downward. When the lifting plate descends, it will synchronously drive the lifting connecting plate to descend. During the descent of the lifting connecting plate, it will drive the roller and the rotary tilling blade to descend, so as to adjust the rotary tilling depth, which is convenient for farmers to adjust the rotary tilling depth according to soil requirements.

[0014] 2. The rotary tiller which is convenient for adjusting the plowing depth is provided with a second rotating shaft. When in use, the second rotating shaft is driven to rotate by the second transmission belt, and the third rotating shaft and the roller are driven to rotate by the third transmission belt, so as to drive the rotary tilling blade to perform rotary tillage, and cooperate with the lifting component to complete the deep tillage of the rotary tiller. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a side sectional view of the rotary tiller of the utility model;

[0016] Figure 2This is a front view of the rotary tiller structure of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of the lifting protection plate structure of the utility model.

[0018] In the figure: 1. rotary tiller housing; 2. mounting assembly; 3. furrowing plow; 4. lifting connecting plate; 5. rotary tiller blade; 7. first rotating shaft; 8. first transmission belt; 9. lifting assembly; 901. threaded rod; 903. first threaded block; 904. second threaded block; 905. hinge block; 906. first hinged rod; 907. second hinged rod; 11. lifting plate; 12. limiting slider; 13. second transmission belt; 14. second rotating shaft; 15. third transmission belt; 16. third rotating shaft; 17. roller; 18. positioning pulley; 19. limiting groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 In this embodiment, a rotary tiller for adjusting the plowing depth comprises a rotary tiller housing 1, a lifting connecting plate 4 is slidably installed on both sides of the rotary tiller housing 1, a roller 17 is movably installed between the two lifting connecting plates 4, a rotary tilling blade 5 is installed outside the roller 17, and a lifting assembly 9 is movably installed inside the rotary tiller housing 1;

[0021] The lifting assembly 9 includes a threaded rotating rod 901, the external thread of which is connected to a first threaded block 903 and a second threaded block 904, the interiors of the first threaded block 903 and the second threaded block 904 are respectively hingedly connected to a first hinged rod 906 and a second hinged rod 907, the bottom ends of the first hinged rod 906 and the second hinged rod 907 are hingedly connected to a hinge block 905, and the bottom of the hinge block 905 is fixedly connected to a lifting plate 11.

[0022] In specific implementation, by setting up a lifting component 9, when in use, the driving machine is started by the overall control of the rotary tiller to drive the first transmission belt 8 to rotate, and the first rotating shaft 7 will be synchronously driven to rotate through the first transmission belt 8, and the first rotating shaft 7 will drive the threaded rod 901 to rotate. Due to the limitation of the lifting plate 11 and the hinge block 905, the first threaded block 903 and the second threaded block 904 will be threadedly connected to the outer surface of the threaded rod 901. When the first threaded block 903 and the second threaded block 904 are respectively facing corresponding directions, the inclination angle of the first hinge rod 906 and the second hinge rod 907 will increase and push the lifting plate 11 downward. When the lifting plate 11 descends, it will synchronously drive the lifting connecting plate 4 to descend. During the descent of the lifting connecting plate 4, it will drive the roller 17 and the rotary tillage blade 5 to descend, so as to adjust the rotary tillage depth, so that farmers can adjust the rotary tillage depth according to soil requirements.

[0023] By setting a second rotating shaft 14, when in use, the second rotating shaft 14 is driven to rotate by the second transmission belt 13, and the third rotating shaft 16 and the roller 17 are driven to rotate by the third transmission belt 15, so as to drive the rotary tillage blade 5 to perform rotary tillage, and cooperate with the lifting component 9 to complete the deep tillage of the rotary tiller.

[0024] When the lifting component 9 drives the lifting connecting plate 4 and the roller 17 to adjust the height, the overall control starting drive motor of the rotary tiller will adjust along with the descending height of the lifting connecting plate 4, avoiding transmission pulling between the second transmission belt 13 and the drive motor, which affects the rotation of the roller 17.

[0025] When implementing, follow these steps:

[0026] 1) First, the driving machine is started by the overall control of the rotary tiller to drive the first transmission belt 8 to rotate;

[0027] 2) Then the first transmission belt 8 will synchronously drive the first rotating shaft 7 to rotate, and the first rotating shaft 7 will drive the threaded rotating rod 901 to rotate due to the limitation of the lifting plate 11 and the hinge block 905;

[0028] 3) Then drive the first thread block 903 and the second thread block 904 to be threadedly connected to the outer surface of the threaded rotating rod 901, and the first thread block 903 and the second thread block 904 face corresponding directions respectively;

[0029] 4) Finally, as the inclination angles of the first hinged rod 906 and the second hinged rod 907 increase, the lifting plate 11 will be pushed downward. When the lifting plate 11 descends, the lifting connecting plate 4 will be driven downward synchronously. During the descent of the lifting connecting plate 4, the roller 17 and the rotary tillage blade 5 will be driven downward to adjust the rotary tillage depth.

[0030] To sum up, by setting the lifting component 9, when in use, the driving machine is started by the overall control of the rotary tiller to drive the first transmission belt 8 to rotate, and the first rotating shaft 7 will be synchronously driven to rotate through the first transmission belt 8, and the first rotating shaft 7 will drive the threaded rod 901 to rotate. Due to the limitation of the lifting plate 11 and the hinge block 905, the first threaded block 903 and the second threaded block 904 will be threadedly connected to the outer surface of the threaded rod 901. When the first threaded block 903 and the second threaded block 904 are respectively facing corresponding directions, the inclination angle of the first hinge rod 906 and the second hinge rod 907 will increase and push the lifting plate 11 downward. When the lifting plate 11 descends, it will synchronously drive the lifting connecting plate 4 to descend. During the descent of the lifting connecting plate 4, it will drive the roller 17 and the rotary tillage blade 5 to descend, so as to adjust the rotary tillage depth, so that farmers can adjust the rotary tillage depth according to soil requirements.

[0031] In addition, by setting up a second rotating shaft 14, when in use, the second rotating shaft 14 is driven to rotate by the second transmission belt 13, and the third rotating shaft 16 and the roller 17 are driven to rotate by the third transmission belt 15, so as to drive the rotary tillage blade 5 to perform rotary tillage, and cooperate with the lifting component 9 to complete the deep tillage of the rotary tiller.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary tiller for adjusting the tillage depth, comprising a rotary tiller housing (1), characterized in that: A lifting connection plate (4) is slidably mounted on both left and right sides of the rotary tiller housing (1); a roller (17) is movably mounted between the two lifting connection plates (4); a rotary tiller blade (5) is mounted outside the roller (17); and a lifting assembly (9) is movably mounted inside the rotary tiller housing (1); The lifting assembly (9) comprises a threaded rotating rod (901), the outer surface of the threaded rotating rod (901) is threadedly connected to a first threaded block (903) and a second threaded block (904), the interiors of the first threaded block (903) and the second threaded block (904) are respectively hingedly connected to a first hinged rod (906) and a second hinged rod (907), the bottom ends of the first hinged rod (906) and the second hinged rod (907) are hingedly connected to a hinged block (905), and the bottom of the hinged block (905) is fixedly connected to a lifting plate (11).

2. A rotary tiller for adjusting the plowing depth according to claim 1, characterized in that: The left and right side surfaces of the lifting plate (11) are both fixedly connected with lifting connection plates (4), and the lifting connection plates (4) penetrate the rotary tiller housing (1).

3. A rotary tiller for adjusting the tillage depth according to claim 1, characterized in that: A mounting assembly (2) is installed on the top of the rotary tiller housing (1), and a furrowing plow (3) is installed on the bottom of the rotary tiller housing (1).

4. A rotary tiller for adjusting the tillage depth according to claim 1, characterized in that: The right end of the threaded rotating rod (901) is fixedly connected to a first rotating shaft (7), and the external transmission of the first rotating shaft (7) is connected to a first transmission belt (8).

5. A rotary tiller for adjusting the tillage depth according to claim 1, characterized in that: A second rotating shaft (14) and a third rotating shaft (16) are movably mounted on the left side surface of the left lifting connecting plate (4); the second rotating shaft (14) is externally transmission-connected with a second transmission belt (13) and a third transmission belt (15); the other end of the third transmission belt (15) is internally transmission-connected to the outside of the third rotating shaft (16); and one end of the third rotating shaft (16) is fixedly connected with a roller (17).

6. A rotary tiller for adjusting the tillage depth according to claim 1, characterized in that: The inner sides of the two lifting connection plates (4) are fixedly connected with positioning pulleys (18), and the positioning pulleys (18) are slidably mounted on the outside of the rotary tiller housing (1). A limiting groove (19) is arranged on the top of the right lifting connection plate (4), and limiting slide blocks (12) are installed on both the left and right sides of the lifting plate (11). The lifting plate (11) is slidably mounted on the inner wall of the rotary tiller housing (1) via the limiting slide blocks (12).

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