Soil preparation machine harrow group device with depth angle adjusting function
By introducing a hydraulic device and articulated structure into the harrow assembly of the tillage machine, the height and angle of the harrow assembly can be automatically and manually adjusted, solving the problem that the traditional tillage machine harrow assembly cannot be automatically adjusted, and improving the adaptability and flexibility of tillage operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG HENGHE AGRI EQUIP CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional tillage machine harrowing units lack hydraulic devices, making it impossible to automatically adjust height and working angle, resulting in insufficient adaptability.
It adopts a hydraulic device and articulated structure to realize automatic adjustment of the height of the rake group and manual angle adjustment. Combined with the connection design of the crossbeam, extension disc and circular disc, the angle and height can be flexibly adjusted through bolt connection.
It enables flexible adjustment of the harrow assembly height and working angle to adapt to different terrain conditions, improving the applicability and flexibility of land preparation operations. The structure is simple and practical.
Smart Images
Figure CN224267286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a tillage machine harrow assembly with depth and angle adjustment function for land preparation operations. Background Technology
[0002] With the continuous improvement of productivity and the rapid development of the rural economy, more and more agricultural machinery has been promoted and applied. The tillage machine harrow set is an important part of tillage machinery. It is mainly used for breaking up soil and leveling the land after plowing, as well as for soil mixing, weeding, and fertilizer mixing.
[0003] In the use of traditional tillage machine harrow sets, for example, Chinese patent CN217694218 U discloses a single-unit double-disc combined tillage machine harrow set, including a harrow base, harrow legs hinged on the harrow base, harrow blade assemblies at the ends of the harrow legs, and a buffer assembly between the harrow legs and the harrow base; the buffer assembly can maintain the initial state of the harrow legs relative to the harrow base during normal tillage, and can also be compressed when encountering obstacles to play a buffering role, so that the harrow legs can be reset and continue to work after passing the obstacle, adapting to different land conditions without affecting the tillage effect.
[0004] However, the following defects and shortcomings exist in its application: the lack of a hydraulic system and the limitation of adjusting the harrow height solely through spring adjustment are very limited, and the left and right working angles cannot be adjusted. To solve these problems, we propose a novel tillage harrow assembly that can automatically adjust the harrow height using a hydraulic system, and also allows for manual adjustment of the harrow's working angle. Summary of the Invention
[0005] The purpose of this utility model is to provide a land leveling machine harrow assembly device with depth and angle adjustment function that is simple in structure, economical and practical, and suitable for land leveling operations. It can automatically adjust the height of the harrow assembly using a lifting device, and can also manually adjust the working angle of the harrow assembly as needed. It is highly applicable, flexible and convenient.
[0006] This utility model discloses a tillage machine harrow assembly with depth and angle adjustment function, mainly including a harrow assembly and an angle adjustment mechanism. The angle adjustment mechanism includes a crossbeam, an extension disc, and a circular disc. The extension disc and the circular disc are respectively located on both sides of the crossbeam. The extension disc has screw holes, and a connecting disc I is located below the extension disc. The connecting disc I has multiple screw holes at intervals that match the screw holes on the extension disc, and the two are detachably connected by bolts. A connecting disc II is located below the circular disc. Both the circular disc and the connecting disc II have long screw holes at matching positions, and are detachably connected by bolts. The crossbeam is also equipped with a lifting cylinder and a hinged arm. The two sides of the harrow assembly are hinged to the crossbeam through the hinged arms, and the middle part is hinged to the crossbeam through the lifting cylinder.
[0007] Preferably, the connecting disc I is fan-shaped or triangular, and the connecting disc II is circular.
[0008] Preferably, the lifting cylinder is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.
[0009] Working principle of this utility model:
[0010] This utility model includes a harrow assembly and an angle adjustment mechanism. The angle adjustment mechanism allows manual adjustment of the alignment of the mounting screw holes on the extended discs and connecting disc I on the crossbeam, as well as the mounting position of the long screw holes between the circular discs and connecting disc II, thereby adjusting the torsional angle of the entire harrow assembly relative to the crossbeam. In other words, the working angle of the harrow assembly can be manually adjusted. The crossbeam is also equipped with a lifting cylinder and a hinged arm. The two sides of the harrow assembly are hinged to the crossbeam via the hinged arms, and the middle part is hinged to the crossbeam via the lifting cylinder. The lifting cylinder is preferably a hydraulic device, which can automatically lift the entire harrow assembly to different depths without manual adjustment. This is suitable for land preparation operations in different terrain conditions, allowing for flexible and convenient adjustment of the harrow assembly's height and working angle according to different soil conditions. The structure is simple and practical.
[0011] Compared with the existing technology, the advantages of this utility model are: simple structure, economical and practical, suitable for land preparation operations, and the height and working angle of the harrow group can be adjusted at any time according to different land conditions, making it more applicable, flexible and convenient. Attached Figure Description
[0012] Figure 1 This is a top view of the structure of the present invention in an embodiment.
[0013] Figure 2 for Figure 1 A side view structural diagram.
[0014] In the diagram: 1 is the rake assembly, 2 is the articulated arm, 3 is the disc, 4 is the long screw hole, 5 is the crossbeam, 6 is the lifting cylinder, 7 is the extension disc, 8 is screw hole I, 9 is the connecting disc I, 10 is the screw hole II, and 11 is the connecting disc II. Detailed Implementation
[0015] Referring to the accompanying drawings, which are structural schematic diagrams of an embodiment of the present invention, a tillage machine harrow assembly with depth and angle adjustment function mainly includes a harrow assembly 1 and an angle adjustment mechanism. The angle adjustment mechanism includes a crossbeam 5, an extension disc 7, and a circular disc 3. The extension disc 7 and the circular disc 3 are respectively disposed on both sides of the crossbeam 5. The extension disc 7 is provided with screw holes, namely screw holes I8 in the figure. A connecting disc I9 is provided below the extension disc 7. The connecting disc I9 is provided with a plurality of screw holes II10 that are adapted to the screw holes on the extension disc 7. The two are detachably connected by bolts. A connecting disc II11 is provided below the circular disc 3. Long screw holes 4 are provided at the corresponding positions of the circular disc 3 and the connecting disc II11. They are detachably connected by bolts. The crossbeam 5 is also provided with a lifting cylinder 6 and a hinge arm 2. The two sides of the harrow assembly 1 are hinged to the crossbeam 5 through the hinge arm 2, and the middle part is hinged to the crossbeam 5 through the lifting cylinder 6.
[0016] The connecting disc I9 can be fan-shaped or triangular, while the connecting disc II is circular. The lifting cylinder can be a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.
[0017] This utility model includes a harrow assembly 1 and an angle adjustment mechanism. Through this mechanism, the positions of the mounting screw holes on the extended disc 7 and connecting disc I 9 on the crossbeam, as well as the mounting positions of the long screw holes 4 between the disc 3 and connecting disc II 11, can be manually adjusted to adjust the angle of the entire harrow assembly relative to the crossbeam. In other words, the working angle of the harrow assembly can be manually adjusted. The crossbeam 5 is also equipped with a lifting cylinder 6 and a hinged arm 2. The harrow assembly 1 is hinged to the crossbeam 5 on both sides via the hinged arms 2, and to the crossbeam 5 in the middle via the lifting cylinder 6. The lifting cylinder 6 is preferably a hydraulic device, which can automatically lift the entire harrow assembly 1 to different depths without manual adjustment. This is suitable for land preparation operations in different terrain conditions. This embodiment allows for flexible and convenient adjustment of the height and working angle of the harrow assembly 1 according to different land conditions, with a simple and practical structure.
[0018] The above description is only a preferred embodiment of the present utility model and is not intended to limit the protection scope of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.
Claims
1. A land leveler rake assembly device having a depth angle adjustment function, characterized by The main components include a rake assembly and an angle adjustment mechanism. The angle adjustment mechanism comprises a crossbeam, an extension disc, and a circular disc. The extension disc and the circular disc are respectively located on both sides of the crossbeam. The extension disc has screw holes, and a connecting disc I is located below the extension disc. The connecting disc I has multiple screw holes at intervals that match the screw holes on the extension disc, and the two are detachably connected by bolts. A connecting disc II is located below the circular disc, and both the circular disc and the connecting disc II have long screw holes at their corresponding positions, and are detachably connected by bolts. The crossbeam also has a lifting cylinder and a hinged arm. The two sides of the rake assembly are hinged to the crossbeam via the hinged arms, and the middle part is hinged to the crossbeam via the lifting cylinder.
2. The tillage machine harrow assembly with depth and angle adjustment function as described in claim 1, characterized in that... The connecting disc I is fan-shaped or triangular, and the connecting disc II is circular.
3. The tillage machine harrow assembly with depth and angle adjustment function as described in claim 1 or 2, characterized in that... The lifting cylinder is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.