A dry field deep ploughing rotary cultivator adjusting device

By designing a rotary tiller adjustment device with a fixed plate, a blade fixing shaft, and an adjustment assembly, the problem of the inability to adjust the blade length of the rotary tiller was solved, enabling flexible adjustment of the blade length and improving the efficiency of agricultural machinery operations.

CN224460604UActive Publication Date: 2026-07-07HENAN HAOFENG AGRI EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN HAOFENG AGRI EQUIP CO LTD
Filing Date
2025-06-23
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The blade length of existing rotary tillers cannot be adjusted, which requires frequent disassembly and replacement of the blade head when deeper rotary tillage is needed. This operation is cumbersome and time-consuming, affecting the efficiency of agricultural machinery operation.

Method used

An adjustment device comprising a fixed plate, a cutter fixing shaft, a limiting shaft, and an adjustment assembly is designed. The radial adjustment of the rotary tiller is achieved through a limiting slider and a worm gear structure, avoiding the need to disassemble and replace the cutter head.

Benefits of technology

It enables flexible adjustment of the length of rotary tillage blades, improves the efficiency of agricultural machinery operations, simplifies the operation process, and reduces manpower consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rotary cultivator adjusting device, concretely is a kind of dry field deep ploughing rotary cultivator adjusting device, including fixed plate, multiple cutter fixed shaft and multiple limit shaft, limit shaft both ends are fixedly connected with fixed plate, and multiple grooves one are set on the surface of fixed plate along radial direction, both ends of cutter fixed shaft are fixedly connected with No. Sliding block, No. Sliding block is slidably connected with groove one, cutter fixed shaft is fixedly connected with multiple rotary cultivator, and groove two is set on the surface of rotary cultivator, multiple limit sliding blocks are fixedly connected on the outside of limit shaft, limit sliding block is slidably connected with groove two, and the end of fixed plate away from rotary cultivator is equipped with adjusting assembly, the dry field deep ploughing rotary cultivator adjusting device, by cutter fixed shaft along the radial sliding of fixed plate, adjusting assembly drives the radial linear motion of cutter fixed shaft, to realize the adjustment of rotary cultivator extension length, rotary cultivator extension length can be adjusted by adjusting assembly, and ploughing depth adjustment is completed.
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Description

Technical Field

[0001] This utility model relates to the technical field of rotary tiller adjustment devices, specifically an adjustment device for a dryland deep tillage rotary tiller. Background Technology

[0002] Deep tillage in dryland fields requires high soil looseness and tillage depth. As the core equipment for achieving deep tillage in dryland fields, the operating depth of the rotary tiller's blades directly affects the tillage quality. In the current technology, the blade length of the rotary tiller cannot be adjusted. When deeper rotary tillage is required, the short blades need to be disassembled and replaced with long blades. Due to the complex field working environment, frequent blade disassembly requires the use of special tools, which is cumbersome, time-consuming and labor-intensive, affecting the efficiency of agricultural machinery operations.

[0003] Therefore, an adjustment device for a dryland deep tillage rotary tiller is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an adjustment device for a dryland deep tillage rotary tiller, which can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a fixed plate, multiple tool fixing shafts, and multiple limiting shafts. Both ends of the limiting shafts are fixedly connected to the fixed plate. The surface of the fixed plate has multiple radially spaced grooves. Both ends of each tool fixing shaft are fixedly connected to a first slider, which is slidably connected to the first groove. Multiple rotary tillers are fixedly connected to the tool fixing shafts. The surface of each rotary tiller has a second groove. Multiple limiting sliders are fixedly connected to the outer side of the limiting shafts, and the limiting sliders are slidably connected to the second groove. An adjustment assembly is provided at the end of the fixed plate away from the rotary tillers.

[0006] Preferably, the adjustment assembly includes an adjustment disk, a worm gear, and an adjustment shaft. The outer side of the adjustment disk is provided with worm gear teeth that mesh with the worm gear. An arc-shaped groove is formed on the surface of the adjustment disk. The adjustment shaft passes through the fixed plate and is connected to the fixed plate through a bearing.

[0007] Preferably, the fixing plate is fixedly connected to a housing near one of the adjusting components. An adjusting hole is provided on one side of the housing. The worm gear is inserted into the housing through the adjusting hole. A hexagonal hole is provided at one end of the worm gear near the adjusting hole.

[0008] Preferably, a cylindrical slider is fixedly connected to one end of the first slider near the adjusting disk, and the cylindrical slider is inserted into the arc-shaped groove.

[0009] Preferably, a plurality of tool fixing seats are fixedly connected to the surface of the tool fixing shaft, and the tool fixing seats are fixedly connected to the rotary tillage tool by bolts.

[0010] Preferably, the second groove of the rotary tiller is an elongated groove, and the length direction of the second groove is consistent with the length direction of the rotary tiller.

[0011] Preferably, a connecting plate is fixedly connected to the side of the housing away from the fixing plate, and the connecting plate is connected to a connecting shaft for connecting external devices.

[0012] Compared with the prior art, this utility model provides an adjustment device for a dryland deep tillage rotary tiller, which has the following beneficial effects:

[0013] 1. The fixed plate, the cutter fixing shaft, and the limiting shaft allow the cutter fixing shaft to slide radially along the fixed plate. At the same time, the limiting shaft and the limiting slider in the second groove on the surface of the rotary tiller cutter limit the rotary tiller cutter. The radial linear movement of the cutter fixing shaft is driven by the adjustment component, thereby realizing the adjustment of the extension length of the rotary tiller cutter. There is no need to disassemble and replace the cutter head. The extension length of the rotary tiller cutter can be adjusted by adjusting the adjustment component to complete the tillage depth adjustment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the housing of this utility model;

[0016] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the inner structure of the fixing plate of this utility model.

[0018] In the diagram: 1. Fixing plate; 2. Tool fixing shaft; 3. Limiting shaft; 4. Slide groove one; 5. Slider No. 1; 6. Rotary tiller; 7. Slide groove two; 8. Limiting slider; 9. Adjusting assembly; 10. Turbine gear; 11. Arc-shaped slide groove; 12. Housing; 13. Adjusting hole; 14. Cylindrical slider; 15. Tool fixing seat; 16. Connecting plate; 17. Connecting shaft; 901. Adjusting disc; 902. Worm gear; 903. Adjusting shaft. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example:

[0021] Please see Figure 1 - Figure 4 The dryland deep tillage rotary tiller adjustment device in this embodiment includes a fixed plate 1, multiple cutter fixing shafts 2 and multiple limiting shafts 3. The two ends of the limiting shafts 3 are fixedly connected to the fixed plate 1. Multiple sliding grooves 4 are opened on the surface of the fixed plate 1 in the radial direction. Both ends of the cutter fixing shafts 2 are fixedly connected to a first slider 5 that slides in cooperation with the sliding grooves 4.

[0022] Multiple tool fixing seats 15 are fixedly connected to the surface of the tool fixing shaft 2. The tool fixing seats 15 are fixedly connected to the rotary tiller 6 by bolts. The surface of the rotary tiller 6 has a long strip groove along its length as a sliding groove 7. Multiple limiting sliders 8 are fixedly connected to the outer side of the limiting shaft 3. The limiting sliders 8 are provided with protrusions that cooperate with the sliding groove 7, so that the limiting sliders 8 and the sliding groove 7 are slidably connected.

[0023] Thus, the movement trajectory of the rotary tiller 6 is limited by the cooperation of the limiting shaft 3 and the limiting slider 8.

[0024] The fixed plate 1 is provided with an adjustment component 9 at the end away from the rotary tiller 6. The adjustment component 9 includes an adjustment disc 901, a worm gear 902 and an adjustment shaft 903. The adjustment shaft 903 passes through the fixed plate 1 and is connected to the fixed plate 1 through a bearing. The outer side of the adjustment disc 901 is provided with a turbine tooth 10 that meshes with the worm gear 902. The surface of the adjustment disc 901 is provided with an arc-shaped groove 11. The fixed plate 1 is fixedly connected to a housing 12 at the end near the adjustment component 9. An adjustment hole 13 is provided on one side of the housing 12.

[0025] The worm 902 is inserted into the housing 12 through the adjustment hole 13. The end of the worm 902 near the adjustment hole 13 is provided with a hexagonal hole, which makes it easy to rotate the worm 902 with tools such as a hexagonal wrench. The end of the first slider 5 near the adjustment plate 901 is fixedly connected to a cylindrical slider 14. The cylindrical slider 14 is inserted into the arc-shaped slide groove 11. When the worm 902 is rotated, the worm 902 drives the adjustment plate 901 to rotate. The adjustment plate 901 drives the adjustment plate on the other side to rotate through the adjustment shaft 903. During the rotation of the adjustment plate 901, the arc-shaped slide groove 11 drives the cylindrical slider 14 to move, thereby driving the tool fixing shaft 2 to move radially along the slide groove 4 of the fixing plate 1 through the first slider 5.

[0026] The cutter fixing shaft 2 drives the rotary tiller 6 to move synchronously through the cutter fixing seat 15. The rotary tiller 6 moves along the direction of the limiting shaft 3 through the sliding connection between the sliding groove 2 7 and the limiting slider 8, thereby realizing the adjustment of the extension length of the rotary tiller 6.

[0027] Furthermore, a connecting plate 16 is fixedly connected to the side of the housing 12 away from the fixing plate 1, and the connecting plate 16 is connected to a connecting shaft 17 for connecting external devices;

[0028] The entire adjustment device is installed on the power output end or frame of the rotary tiller via the connecting shaft 17. The length direction of the slide groove 2 7 of the rotary tiller blade 6 is consistent with the length direction of the rotary tiller blade 6. With the protrusion of the limiting slider 8, the rotary tiller blade 6 can only slide along the direction of the limiting shaft 3 when it moves radially with the blade fixing shaft 2, thus avoiding shaking or deviation.

[0029] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustment device for a dryland deep tillage rotary tiller, characterized in that: The device includes a fixed plate (1), multiple tool fixing shafts (2) and multiple limiting shafts (3). The two ends of the limiting shafts (3) are fixedly connected to the fixed plate (1). The surface of the fixed plate (1) is provided with multiple sliding grooves (4) in the radial direction. The two ends of the tool fixing shafts (2) are fixedly connected with sliders (5). The sliders (5) are slidably connected to the sliding grooves (4). The tool fixing shafts (2) are fixedly connected with multiple rotary tillage tools (6). The surface of the rotary tillage tools (6) is provided with sliding grooves (7). The outer side of the limiting shafts (3) is fixedly connected with multiple limiting sliders (8). The limiting sliders (8) are slidably connected to the sliding grooves (7). The end of the fixed plate (1) away from the rotary tillage tools (6) is provided with an adjustment component (9).

2. The adjustment device for a dryland deep tillage rotary tiller according to claim 1, characterized in that: The adjustment assembly (9) includes an adjustment disk (901), a worm gear (902) and an adjustment shaft (903). The outer side of the adjustment disk (901) is provided with a worm gear tooth (10) that meshes with the worm gear (902). An arc-shaped sliding groove (11) is opened on the surface of the adjustment disk (901). The adjustment shaft (903) passes through the fixed plate (1) and is connected to the fixed plate (1) through a bearing.

3. The adjustment device for a dryland deep tillage rotary tiller according to claim 2, characterized in that: The fixed plate (1) is fixedly connected to a housing (12) near the adjustment assembly (9). An adjustment hole (13) is provided on one side of the housing (12). The worm (902) is inserted into the housing (12) through the adjustment hole (13). A hexagonal hole is provided at one end of the worm (902) near the adjustment hole (13).

4. The adjustment device for a dryland deep tillage rotary tiller according to claim 2, characterized in that: The first slider (5) is fixedly connected to a cylindrical slider (14) at one end near the adjustment plate (901), and the cylindrical slider (14) is inserted into the arc-shaped groove (11).

5. The adjustment device for a dryland deep tillage rotary tiller according to claim 1, characterized in that: Multiple tool fixing seats (15) are fixedly connected to the surface of the tool fixing shaft (2), and the tool fixing seats (15) are fixedly connected to the rotary tillage tool (6) by bolts.

6. The adjustment device for a dryland deep tillage rotary tiller according to claim 1, characterized in that: The second groove (7) of the rotary tiller (6) is a long groove, and the length direction of the second groove (7) is consistent with the length direction of the rotary tiller (6).

7. The adjustment device for a dryland deep tillage rotary tiller according to claim 3, characterized in that: A connecting plate (16) is fixedly connected to the side of the housing (12) away from the fixing plate (1), and the connecting plate (16) is connected to a connecting shaft (17) for connecting external devices.