Miniature rotary cultivator with adjustable depth

By adopting telescopic rod motor and sliding groove structure in the micro rotary tiller, the precise adjustment of the rotary tiller depth is achieved, which solves the problem that existing rotary tillers are difficult to adjust the depth, and improves the adaptability and practicality of the machine.

CN222602961UActive Publication Date: 2025-03-14SHAANXI AGRICULTURE & FORESTRY VOCATIONAL & TECHNICAL UNIVERSITY
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Patent Information

Application Number
CN202420944661.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-06
Publication Date
2025-03-14
Estimated Expiration
2034-05-06

AI Technical Summary

Technical Problem

Existing rotary tillers are difficult to directly adjust the rotary till depth, and the process of replacing blades of different lengths is troublesome.

Method used

A micro rotary tiller with adjustable depth is designed, using a telescopic rod motor and sliding groove structure. The connecting shaft is pushed through the telescopic rod motor to adjust the position of the rotary tiller blade, and the friction and vibration between the components are reduced through the sliding groove.

Benefits of technology

The precise adjustment of rotary tillage depth is achieved, the adaptability and practicality of rotary tillage machines are improved, the consistency of tillage quality is ensured, and the blade replacement process is simplified.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a depth-adjustable miniature rotary cultivator which comprises a support, a rotary blade assembly is arranged at the bottom end of the support and comprises a supporting plate, a rotary motor and a rotary blade wheel shaft, the supporting plate is fixedly connected with one side of the support and is in bolt connection with the rotary motor, and the rotary blade wheel shaft is connected with the rotary motor. The rotary blade wheel shafts are detachably fixed to the two sides of the rotary motor, a plurality of fixing discs are fixedly installed outside the rotary blade wheel shafts, a plurality of connecting shafts are arranged in the fixing discs in a penetrating mode, rotary blades are fixedly connected to the peripheries of the connecting shafts, a telescopic rod motor is fixedly connected to one end of each connecting shaft, and a fixing plate is rotationally connected to one side of each telescopic rod motor. According to the rotary cultivator, the engine assembly is installed on the support, the rotary blade assembly is installed below the support, the rotary blade wheel shaft provides power, the connecting shaft is pushed through the telescopic rod motor, the position of the rotary blade is adjusted, and therefore the rotary cultivator can adapt to different soil conditions and tillage requirements.
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Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a miniature rotary tiller with adjustable depth. Background Art

[0002] In hilly and mountainous areas with large ground slopes, as well as in small fields, large agricultural machinery cannot play its role, and more people or animals are used, which is labor-intensive and has low production efficiency. In response to this situation, agricultural micro-tillage machines have emerged. At present, micro-tillage machines are usually driven by engines to rotate the blade wheel to achieve the advancement of the micro-tillage machine and tillage.

[0003] The existing rotary tillers achieve adjustable tillage depth by adjusting the speed difference between the auxiliary wheel and the rotary tiller blade group. However, the length of the rotary tiller blade is an important fixed parameter. In most cases, the user cannot directly change the length of the rotary tiller blade to adjust the rotary tillage depth, and the process of disassembly and replacement by replacing blades of different lengths is relatively troublesome.

[0004] In order to solve the above problems, it is necessary to design a miniature rotary tiller with adjustable depth. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and provides the following technical solutions:

[0006] A miniature rotary tiller with adjustable depth comprises a bracket, an engine assembly is arranged on the upper part of the bracket, a hand-held assembly is arranged at one end of the bracket, an adjusting wheel assembly is arranged at the other end of the bracket, a rotary tiller assembly is arranged at the bottom end of the bracket, the rotary tiller assembly comprises a support plate, a rotating motor and a rotary tiller wheel shaft, the support plate is fixedly connected to one side of the bracket, the support plate is bolted to the rotating motor, the rotary tiller wheel shaft is detachably fixed to both sides of the rotating motor, a plurality of groups of fixing disks are fixedly installed on the outside of the rotary tiller wheel shaft, a plurality of groups of connecting shafts are penetrated inside the fixing disk, a rotary tiller blade is fixedly connected to the periphery of the connecting shaft, a telescopic rod motor is fixedly connected to one end of the connecting shaft, and a fixing plate is rotatably connected to one side of the telescopic rod motor.

[0007] As an improvement of the above technical solution, a sliding groove is provided inside the fixed plate, and a connecting rod connected to the rotary tiller blade is provided on the periphery of the connecting shaft, and the connecting rod is slidably arranged inside the sliding groove.

[0008] As an improvement of the above technical solution, a fixing seat is provided on one side of the bracket, and a connecting plate is fixedly installed between the fixing seat and the fixing plate.

[0009] As an improvement of the above technical solution, the fixed disk and the rotary tillage blade are symmetrically arranged on both sides of the rotary motor.

[0010] As an improvement of the above technical solution, the rotating motor is a dual-axis rotating motor.

[0011] As an improvement of the above technical solution, the length of the sliding slot matches the telescopic length of the telescopic rod motor.

[0012] Beneficial effects of the utility model:

[0013] 1. The engine of the engine assembly is installed on the bracket, and the rotary tiller blade assembly is installed under the bracket and fixedly connected to the bracket through a support plate, which provides stable support for the rotating motor and ensures that the rotary tiller blade assembly will not loosen or shift due to vibration or impact during operation. The rotating motor serves as a driving source to provide power for the rotary tiller blade shaft, so that it can rotate and drive the rotary tiller blade to till the soil. The fixed plate is installed on the outside of the rotary tiller blade shaft to fix and support the connecting shaft and the rotary tiller blade. The position of the rotary tiller blade can be adjusted by pushing the connecting shaft through the telescopic rod motor through the fixed connection between the telescopic rod motor and the connecting shaft. The fixed plate is rotatably connected to one side of the telescopic rod motor. The telescopic rod motor performs telescopic movement under the support of the fixed plate without being affected by the rotation of the rotary tiller blade shaft, thereby changing the rotary tillage depth, so that the rotary tiller can adapt to different soil conditions and tillage requirements, thereby improving its adaptability and practicality.

[0014] 2. The sliding groove provides a stable sliding track for the connecting rod, so that the connecting rod can move smoothly inside the fixed plate under the drive of the telescopic rod motor, reducing the friction and vibration between the components and improving the structural stability of the entire rotary tiller assembly. The position and angle of the rotary tiller blade can be accurately controlled by sliding the connecting rod in the sliding groove, which helps to achieve precise adjustment of the rotary tillage depth and ensure the consistency of tillage quality. The design of the sliding groove also allows fine-tuning of the length of the rotary tiller blade to meet different tillage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall structure diagram of the utility model;

[0016] Figure 2 This is a side view of the rotary tiller blade assembly of the utility model;

[0017] Figure 3 This is a rear view of the telescopic rod motor of the utility model;

[0018] Figure 4 This is the overall structure diagram of the telescopic rod motor of the utility model;

[0019] Figure 5 This is a structural diagram of the fixed disk of the utility model.

[0020] Figure numerals: 1. bracket; 2. engine assembly; 3. rotary blade assembly; 31. support plate; 32. rotating motor; 33. rotary blade axle; 34. fixed plate; 341. sliding groove; 35. connecting shaft; 351. connecting rod; 352. rotary blade; 36. telescopic rod motor; 37. fixed plate; 371. connecting plate; 38. fixed seat; 4. hand assembly; 5. adjusting wheel assembly. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0022] See also Figure 1-5 , the utility model provides a technical solution:

[0023] A miniature rotary tiller with adjustable depth comprises a bracket 1, an engine assembly 2 is arranged on the upper part of the bracket 1, a hand assembly 4 is arranged at one end of the bracket 1, an adjusting wheel assembly 5 is arranged at the other end of the bracket 1, a rotary tiller assembly 3 is arranged at the bottom end of the bracket 1, the rotary tiller assembly 3 comprises a support plate 31, a rotating motor 32 and a rotary tiller wheel shaft 33, the support plate 31 is fixedly connected to one side of the bracket 1, the support plate 31 is bolted to the rotating motor 32, the rotary tiller wheel shaft 33 is detachably fixed to both sides of the rotating motor 32, a plurality of groups of fixing plates 34 are fixedly installed on the outside of the rotary tiller wheel shaft 33, a plurality of groups of connecting shafts 35 are penetrated inside the fixing plates 34, a rotary tiller blade 352 is fixedly connected to the periphery of the connecting shaft 35, a telescopic rod motor 36 is fixedly connected to one end of the connecting shaft 35, and a fixing plate 37 is rotatably connected to one side of the telescopic rod motor 36.

[0024] In this embodiment, the engine of the engine assembly 2 is installed on the bracket 1, and the rotary tiller assembly 3 is installed under the bracket 1 and fixedly connected to the bracket 1 through the support plate 31, providing stable support for the rotating motor 32, ensuring that the rotary tiller assembly 3 will not loosen or shift due to vibration or impact during operation. The rotating motor 32 serves as a driving source to provide power for the rotary tiller wheel shaft 33, so that it can rotate and drive the rotary tiller blade 352 to till the soil. The fixed plate 34 is installed on the outside of the rotary tiller wheel shaft 33, and is used to fix and support the connecting shaft 35 and the rotary tiller blade 352. By fixing the telescopic rod motor 36 and the connecting shaft 35, the connecting shaft 35 is pushed by the telescopic rod motor 36, so that the position of the rotary tiller blade 352 can be adjusted. The fixed plate 37 is rotatably connected to one side of the telescopic rod motor 36. The telescopic rod motor 36 performs telescopic movement under the support of the fixed plate 37 without being affected by the rotation of the rotary tiller wheel shaft 33, thereby changing the rotary tillage depth, so that the rotary tiller can adapt to different soil conditions and tillage requirements, thereby improving its adaptability and practicality.

[0025] Specifically, a sliding groove 341 is provided inside the fixing plate 34 , and a connecting rod 351 connected to the rotary tilling blade 352 is provided on the periphery of the connecting shaft 35 , and the connecting rod 351 is slidably disposed inside the sliding groove 341 .

[0026] In this embodiment, the sliding groove 341 provides a stable sliding track for the connecting rod 351, so that the connecting rod 351 can move smoothly inside the fixed plate 34 under the drive of the telescopic rod motor 36, thereby reducing the friction and vibration between the components and improving the structural stability of the entire rotary tiller assembly 3. By sliding the connecting rod 351 in the sliding groove 341, the position and angle of the rotary tiller blade 352 can be precisely controlled, which helps to achieve precise adjustment of the rotary tillage depth and ensure the consistency of the tillage quality. The design of the sliding groove 341 also allows fine-tuning of the length of the rotary tiller blade 352 to adapt to different tillage requirements.

[0027] Specifically, a fixing seat 38 is provided on one side of the bracket 1 , and a connecting plate 371 is fixedly installed between the fixing seat 38 and the fixing plate 37 .

[0028] In this embodiment, the setting of the fixed seat 38 and the connecting plate 371 enhances the structural stability of the entire telescopic rod motor 36. They provide a stable support point for the telescopic rod motor 36 and the rotary tillage blade 352, ensuring that these components can remain stable and are not prone to shaking or shifting during the rotary tillage operation, which helps to accurately control the depth and angle of the rotary tillage blade 352. When the blade needs to be replaced, only the connecting plate 371 needs to be removed to easily remove the fixing plate 37 and the telescopic rod motor 36 from the fixed seat 38 for replacement or maintenance.

[0029] Specifically, the fixed disc 34 and the rotary tilling blade 352 are symmetrically arranged on both sides of the rotary motor 32 .

[0030] In this embodiment, the symmetrical design helps to achieve a balanced distribution of rotary tillage force. Since the fixed plate 34 and the rotary tillage blade 352 are symmetrically arranged on both sides of the rotating motor 32, the force generated during rotary tillage can act evenly on the soil, avoiding vibration or deviation caused by uneven force distribution, thereby improving the stability and efficiency of rotary tillage, and also helping to reduce mechanical wear and failure, extending the service life, reducing the risk of mechanical failure due to uneven force, and improving the reliability of the entire rotary tiller.

[0031] Specifically, the rotary motor 32 is a dual-shaft rotary motor.

[0032] In this embodiment, the dual-rotation motor 32 has a rotation axis that rotates in two different directions, which is suitable for different soil conditions, crop types, and farming requirements. By changing the rotation direction, it can better adapt to these changes, thereby improving farming results and quality, and also helping to reduce mechanical wear and failure.

[0033] Specifically, the length of the sliding slot 341 matches the telescopic length of the telescopic rod motor 36 .

[0034] In this embodiment, the length of the sliding groove 341 is designed to match the telescopic length of the telescopic rod motor 36, ensuring that the telescopic rod motor 36 can move smoothly in the sliding groove 341 during the telescopic process without any obstruction or restriction. When the telescopic rod motor 36 is in a retracted state, it can be completely accommodated in the sliding groove 341 without protruding or exceeding its boundaries. When the telescopic rod motor 36 needs to be extended, the length of the sliding groove 341 is sufficient to allow it to be fully extended without encountering the problem of insufficient space.

[0035] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A depth-adjustable miniature rotary tiller, comprising a bracket (1), an engine assembly (2) being arranged on the upper portion of the bracket (1), a hand-held assembly (4) being arranged at one end of the bracket (1), and an adjusting wheel assembly (5) being arranged at the other end of the bracket (1), characterized in that: A rotary tiller assembly (3) is arranged at the bottom end of the bracket (1), and the rotary tiller assembly (3) comprises a support plate (31), a rotary motor (32) and a rotary tiller wheel shaft (33); the support plate (31) is fixedly connected to one side of the bracket (1); the support plate (31) is bolted to the rotary motor (32); the rotary tiller wheel shaft (33) is detachably fixed to both sides of the rotary motor (32); a plurality of groups of fixing disks (34) are fixedly mounted on the outside of the rotary tiller wheel shaft (33); a plurality of groups of connecting shafts (35) are penetrated inside the fixing disks (34); a rotary tiller blade (352) is fixedly connected to the periphery of the connecting shaft (35); a telescopic rod motor (36) is fixedly connected to one end of the connecting shaft (35); and a fixing plate (37) is rotatably connected to one side of the telescopic rod motor (36).

2. The depth-adjustable mini rotary tiller according to claim 1, characterized in that: A sliding groove (341) is provided inside the fixed plate (34), and a connecting rod (351) connected to a rotary tiller blade (352) is provided on the periphery of the connecting shaft (35), and the connecting rod (351) is slidably arranged inside the sliding groove (341).

3. The depth-adjustable mini rotary tiller according to claim 1, characterized in that: A fixing seat (38) is provided on one side of the bracket (1), and a connecting plate (371) is fixedly installed between the fixing seat (38) and the fixing plate (37).

4. The depth-adjustable mini rotary tiller according to claim 1, characterized in that: The fixed disk (34) and the rotary tilling blade (352) are symmetrically arranged on both sides of the rotary motor (32).

5. The depth-adjustable mini rotary tiller according to claim 1, characterized in that: The rotating motor (32) is a dual-shaft rotating motor.

6. The depth-adjustable mini rotary tiller according to claim 2, characterized in that: The length of the sliding slot (341) matches the telescopic length of the telescopic rod motor (36).