Depth-adjustable land leveling device

Abstract

The depth-adjustable land leveling device comprises a rack, a ploughing structure and a leveling structure, the rack comprises an installation frame, a hydraulic cylinder fixedly installed on the lower surface of the installation frame and a sliding frame fixedly installed at the telescopic end of the hydraulic cylinder, and an assembly frame capable of being connected with an external vehicle body is arranged on the surface of the installation frame. The ploughing structure comprises three spiral twisted blades rotationally mounted on the lower surface of the sliding frame at equal intervals, a plurality of soil turning nails fixedly mounted on the lower surface of the sliding frame at equal intervals, and a driving assembly arranged on the upper surface of the sliding frame and used for driving the spiral twisted blades to rotate, and the leveling structure comprises a mounting frame fixedly mounted on the left side face of the sliding frame. By arranging the ploughing structure and the leveling structure, compared with the prior art, the device can perform rotary tillage on soil through the ploughing structure, and then the soil subjected to rotary tillage can be leveled through the leveling structure, so that rotary tillage and leveling can be integrally completed, and the situation that the soil needs to be subjected to rotary tillage after the soil is leveled is avoided.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a land leveling device with adjustable depth. Background Art

[0002] In order to ensure uniform irrigation and reduce water waste during agricultural production, it is necessary to level the uneven land.

[0003] China's authorization announcement number CN209170833U discloses a land leveling device, including a leveling mechanism, a hydraulic mechanism and a connecting mechanism; the leveling mechanism, the hydraulic mechanism and the connecting mechanism are connected in sequence from bottom to top, the leveling mechanism is composed of a left wing plate, a right wing plate and a bulldozer plate, the hydraulic mechanism is composed of an oil cylinder, a piston rod, a transmission rod, a pressure sensor and a controller, and the connecting mechanism is composed of a support plate and a hanging plate; the hydraulic mechanism can automatically adjust the height of the bulldozer plate according to needs to adapt to different land leveling depths, and the assembled bulldozer plate in the leveling mechanism can adapt to different land leveling widths by adding or reducing bulldozer blocks, and the stability and working intensity of the leveling machine head are enhanced by arranging a support plate in the connecting mechanism; the utility model has a large leveling force, is applicable to construction land and farmland, and can also be used for snow clearing and other work, realizing the effective use of tractors during the slack season.

[0004] However, this device has the following drawbacks when in use: although the device can level the land using the bulldozer, the land still needs to be plowed and loosened before planting after leveling, which makes it impossible to integrate plowing and leveling. To address the above drawbacks, we propose a land leveling device with adjustable depth. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a depth-adjustable land leveling device.

[0006] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions: a land leveling device with adjustable depth, comprising:

[0007] The frame includes a mounting frame, a hydraulic cylinder fixedly mounted on the lower surface of the mounting frame, and a sliding frame fixedly mounted on the telescopic end of the hydraulic cylinder, and an assembly frame that can be connected to the external vehicle body is provided on the surface of the mounting frame;

[0008] A tillage structure comprising three spiral blades rotatably mounted at equal intervals on the lower surface of a sliding frame, a plurality of tillage nails fixedly mounted at equal intervals on the lower surface of the sliding frame, and a drive assembly disposed on the upper surface of the sliding frame for driving the spiral blades to rotate;

[0009] The leveling structure includes a mounting frame fixedly mounted on the left side of the sliding frame, a slider slidably mounted on the inner wall of the mounting frame, a leveling scraper fixedly mounted on the lower surface of the slider, and an adjusting component arranged inside the mounting frame for driving the leveling scraper to move.

[0010] Preferably, the driving assembly includes three driving pulleys and three driven pulleys which are respectively rotatably mounted on the upper surface of the sliding frame, a first secondary pulley which is respectively fixedly mounted on the upper ends of the two driving pulleys, a second secondary pulley which is respectively fixedly mounted on the upper ends of the two driven pulleys, and a motor which is fixedly mounted on the upper surface of the sliding frame.

[0011] Preferably, the lower ends of the three driven pulleys are fixedly connected to the upper ends of the spiral blades.

[0012] Preferably, the driving pulley and the driven pulley are connected via a belt transmission, and the first secondary pulley and the second secondary pulley are connected via a belt transmission.

[0013] Preferably, the adjustment assembly includes a support shaft rotatably mounted on the inner wall of the mounting frame, a spur gear and a worm gear respectively fixedly mounted on the surface of the support shaft, a connecting frame fixedly mounted on the upper surface of the mounting frame, a worm rotatably mounted on the inner wall of the connecting frame, and a spur rack fixedly mounted on the right side of the slider.

[0014] Preferably, the spur gear is meshed with a spur rack for transmission.

[0015] Preferably, the output end of the motor is fixedly connected to the upper end of the driving pulley.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. By setting up a tillage structure and a leveling structure, the assembly frame is connected to the external vehicle body as a whole, and then the driving assembly is used to drive the three spiral blades to rotate. When the external vehicle body drives the frame to move, multiple tillage nails will be inserted into the ground. The soil can be initially tilled using the multiple tillage nails. Then, the soil after the initial tillage can be broken up and fluffed using the rotating spiral blades, and the multiple tillage nails can remove large stones in the soil to prevent the spiral blades from contacting large stones and causing damage. Then, the leveling scraper will scrape the fluffy soil flat. Compared with the existing technology, the device can till the soil using the tillage structure, and then use the leveling structure to scrape the soil after tillage, so that the tillage and leveling can be completed in an integrated manner, avoiding the need to till the soil after leveling.

[0018] 2. By setting up the adjustment component, when the mounting frame and the external vehicle body are assembled as one, the hydraulic cylinder is then driven to drive the sliding frame to move up and down, thereby adjusting the depth of the soil-turning nails and spiral blades inserted into the soil, and then adjusting the depth of the cultivated land. The worm is rotated, and the worm gear is engaged with the worm to drive the support shaft and the spur gear to rotate. The spur gear is engaged with the spur rack to drive the slider up and down, and then the height between the leveling scraper and the soil can be adjusted to avoid the problem of the leveling scraper contacting the soil due to the downward movement of the sliding frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings described herein are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute undue limitations. In the accompanying drawings:

[0020] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0021] Figure 2 This is a first-perspective perspective diagram of the cultivated land structure of the present utility model;

[0022] Figure 3 This is a perspective diagram of the cultivated land structure of the present utility model from a second perspective;

[0023] Figure 4 It is a three-dimensional schematic diagram of the flat structure of the utility model.

[0024] Serial numbers in the figure: 1 mounting frame, 2 hydraulic cylinder, 3 sliding frame, 4 spiral blade, 5 soil-turning nail, 6 mounting frame, 7 slider, 8 leveling scraper, 9 driving pulley, 10 driven pulley, 11 first secondary pulley, 12 second secondary pulley, 13 motor, 14 support shaft, 15 spur gear, 16 worm gear, 17 connecting frame, 18 worm, 19 spur rack. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0026] See also Figure 1-4 The utility model provides a technical solution: a land leveling device with adjustable depth, including: a frame, a tillage structure and a leveling structure.

[0027] See Figure 1 The frame includes a mounting frame 1, a hydraulic cylinder 2 fixedly mounted on the lower surface of the mounting frame 1, and a sliding frame 3 fixedly mounted on the telescopic end of the hydraulic cylinder 2. The surface of the mounting frame 1 is provided with an assembly frame that can be connected to the external vehicle body. Driving the hydraulic cylinder 2 can drive the sliding frame 3 to move up and down.

[0028] See Figure 2-3 The tillage structure includes three spiral blades 4 equidistantly mounted on the lower surface of the sliding frame 3, a plurality of soil-turning nails 5 equidistantly fixed on the lower surface of the sliding frame 3, and a driving assembly arranged on the upper surface of the sliding frame 3 for driving the spiral blades 4 to rotate.

[0029] The driving assembly includes three driving pulleys 9 and three driven pulleys 10 which are respectively rotatably mounted on the upper surface of the sliding frame 3, a first sub-pulley 11 which is respectively fixedly mounted on the upper ends of the two driving pulleys 9, a second sub-pulley 12 which is respectively fixedly mounted on the upper ends of the two driven pulleys 10, and a motor 13 which is fixedly mounted on the upper surface of the sliding frame 3. The lower ends of the three driven pulleys 10 are fixedly connected to the upper end of the spiral blade 4.

[0030] The output end of the motor 13 is fixedly connected to the upper end of the driving pulley 9, the driving pulley 9 and the driven pulley 10 are connected by belt transmission, and the first sub-pulley 11 and the second sub-pulley 12 are connected by belt transmission. The driving motor 13 can drive the driving pulley 9 located below the motor 13 to rotate, and then the belt transmission can drive the driven pulley 10, the first sub-pulley 11 and the second sub-pulley 12 to rotate synchronously, thereby driving the three spiral blades 4 to rotate.

[0031] After the assembly frame is connected to the external vehicle body as a whole, the driving component can be used to drive the three spiral blades 4 to rotate. When the external vehicle body drives the frame to move, multiple tillage nails 5 will be inserted into the ground. The soil can be initially tilled using the multiple tillage nails 5. After that, the rotating spiral blades 4 can be used to break up the soil after the initial tillage to make it fluffy, and the multiple tillage nails 5 can remove large stones in the soil to prevent the spiral blades 4 from contacting large stones and causing damage.

[0032] When the mounting frame 1 is assembled with the outer vehicle body, the hydraulic cylinder 2 is then driven to drive the sliding frame 3 to move up and down, thereby adjusting the depth of the soil-turning nails 5 and the spiral blades 4 inserted into the soil, and further adjusting the depth of the cultivated land.

[0033] See Figure 3-4 The leveling structure includes a mounting frame 6 fixedly mounted on the left side of the sliding frame 3, a slider 7 slidably mounted on the inner wall of the mounting frame 6, a leveling scraper 8 fixedly mounted on the lower surface of the slider 7, and an adjusting component arranged inside the mounting frame 6 for driving the leveling scraper 8 to move. After the tillage structure has rotary tilled the soil, the leveling scraper 8 will then scrape the fluffy soil flat.

[0034] Compared with the existing technology, this device can use the tillage structure to rotary till the soil, and then use the leveling structure to scrape the tilled soil flat, so that the rotary tillage and leveling can be completed in an integrated manner, avoiding the need to rotary till the soil after leveling it.

[0035] See Figure 4 The adjustment assembly includes a support shaft 14 rotatably mounted on the inner wall of the mounting frame 6, a spur gear 15 and a worm gear 16 fixedly mounted on the surface of the support shaft 14, a connecting frame 17 fixedly mounted on the upper surface of the mounting frame 6, a worm 18 rotatably mounted on the inner wall of the connecting frame 17, and a spur rack 19 fixedly mounted on the right side of the slider 7. The spur gear 15 is engaged with the spur rack 19 for transmission, and the worm gear 16 is engaged with the worm 18 for transmission.

[0036] By rotating the worm 18 and utilizing the meshing transmission between the worm wheel 16 and the worm 18, the support shaft 14 and the spur gear 15 can be driven to rotate, and the spur gear 15 and the spur rack 19 can be engaged to drive the slider 7 to move up and down, thereby adjusting the height between the leveling scraper 8 and the soil, avoiding the problem of the leveling scraper 8 contacting the soil due to the downward movement of the sliding frame 3.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Any equivalent replacement or change made by a person skilled in the art based on the technical solution and concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A depth-adjustable land leveling device, characterized in that: include: A frame, the frame comprising a mounting frame (1), a hydraulic cylinder (2) fixedly mounted on the lower surface of the mounting frame (1), and a sliding frame (3) fixedly mounted on the telescopic end of the hydraulic cylinder (2), wherein the surface of the mounting frame (1) is provided with an assembly frame that can be connected to an external vehicle body; A tillage structure, comprising three spiral blades (4) rotatably mounted at equal intervals on the lower surface of a sliding frame (3), a plurality of soil-turning nails (5) fixedly mounted at equal intervals on the lower surface of the sliding frame (3), and a driving assembly arranged on the upper surface of the sliding frame (3) for driving the spiral blades (4) to rotate; A leveling structure, comprising a mounting frame (6) fixedly mounted on the left side of a sliding frame (3), a slider (7) slidably mounted on the inner wall of the mounting frame (6), a leveling scraper (8) fixedly mounted on the lower surface of the slider (7), and an adjusting component arranged inside the mounting frame (6) for driving the leveling scraper (8) to move.

2. The depth-adjustable land leveling device according to claim 1, characterized in that: The driving assembly comprises three driving pulleys (9) and three driven pulleys (10) rotatably mounted on the upper surface of the sliding frame (3), a first secondary pulley (11) fixedly mounted on the upper ends of the two driving pulleys (9), a second secondary pulley (12) fixedly mounted on the upper ends of the two driven pulleys (10), and a motor (13) fixedly mounted on the upper surface of the sliding frame (3).

3. The adjustable depth land leveling device according to claim 2, characterized in that: The lower ends of the three driven pulleys (10) are fixedly connected to the upper ends of the spiral blades (4).

4. The depth-adjustable land leveling device according to claim 2, characterized in that: The driving pulley (9) and the driven pulley (10) are connected via a belt transmission, and the first secondary pulley (11) and the second secondary pulley (12) are connected via a belt transmission.

5. The depth-adjustable land leveling device according to claim 1, characterized in that: The adjustment assembly includes a support shaft (14) rotatably mounted on the inner wall of the mounting frame (6), a spur gear (15) and a worm gear (16) fixedly mounted on the surface of the support shaft (14), a connecting frame (17) fixedly mounted on the upper surface of the mounting frame (6), a worm (18) rotatably mounted on the inner wall of the connecting frame (17), and a spur rack (19) fixedly mounted on the right side of the slider (7).

6. The depth-adjustable land leveling device according to claim 5, characterized in that: The spur gear (15) is meshed with the spur rack (19) for transmission.

7. The depth-adjustable land leveling device according to claim 2, characterized in that: The output end of the motor (13) is fixedly connected to the upper end of the driving pulley (9).

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