Support mechanism of rotary cultivator

By designing the support mechanism of the rotary tiller, and using a motor to drive a bevel gear to rotate the rotating rod and the fixed tube, the tilting problem when the rotary tiller is separated from the four-wheel machine is solved, realizing automatic support and height adjustment, simplifying the operation process, and improving connection stability.

CN223829857UActive Publication Date: 2026-01-27HEBEI CHUNGENG MASCH MFG CO LTD
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Patent Information

Application Number
CN202520332615.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-01-27
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

When the rotary tiller is separated from the four-wheel machine, it is easy to tilt, which leads to unstable operation. When connecting, it requires multiple people to lift and adjust it, making the operation troublesome.

Method used

A support mechanism for a rotary tiller was designed, including a rotating rod, a fixed tube, a screw, a torsion plate, and a support plate. The rotating rod and the fixed tube are rotated by a bevel gear driven by a motor, and the contact between the fixed rod and the ground is adjusted to achieve support and height adjustment.

Benefits of technology

When the rotary tiller and the four-wheel machine are separated, the support mechanism can automatically adjust the support to avoid tilting, simplify the operation process, and improve the connection stability and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rotary cultivators, and discloses a support mechanism of a rotary cultivator, which comprises a rotary cultivator body, a mounting frame and a transmission device connected with an external four-wheel machine, and further comprises a rotating rod rotationally connected inside the mounting frame, an output shaft of the motor is in bolted connection with a first bevel gear, the surface of the first bevel gear is meshed with a second bevel gear, and the interior of the second bevel gear is fixed to the surface of a rotating rod; the fixing pipes are fixed to the surfaces of the two ends of the rotating rod, the interiors of the other ends of the fixing pipes are movably connected with screw rods, and one ends of the fixing pipes are rotationally connected with twisting discs; before the rotary cultivator is separated from the four-wheel machine, the two fixing pipes can be driven to deflect, so that the supporting plate is in contact with the ground, and the rotary cultivator body is supported to facilitate subsequent connection and use.
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Description

Technical Field

[0001] This utility model relates to the field of rotary tiller technology, specifically to a support mechanism for a rotary tiller. Background Technology

[0002] Rotary tillers are tillage machines that work in conjunction with tractors to perform tilling and harrowing operations. They are widely used because of their strong soil-breaking ability and the flat surface they leave after tilling; at the same time, they can chop up the stubble buried below the surface, making it easier for seeders to operate and providing a good seedbed for later sowing.

[0003] Rotary tillers are often used to facilitate land cultivation. However, current rotary tillers are often used in conjunction with four-wheelers. When the four-wheeler and the rotary tiller are separated, the rotary tiller's blades are in direct contact with the ground. As the rotary tiller is separated from the four-wheeler, the entire rotary tiller will tilt to one side of its connection point, causing instability. When it is subsequently reconnected to the four-wheeler, multiple workers are needed to lift the tilted end of the rotary tiller to connect it to the four-wheeler, which is quite cumbersome. Utility Model Content

[0004] The purpose of this utility model is to provide a support mechanism for a rotary tiller to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a support mechanism for a rotary tiller, comprising a rotary tiller body, a mounting frame, and a transmission device for connecting to an external four-wheeled machine, and further comprising:

[0006] A rotating rod is rotatably connected inside the mounting frame. A motor is fixed to the top of the rotary tiller body. The output shaft of the motor is bolted with a first bevel gear. A second bevel gear meshes with the surface of the first bevel gear. The interior of the second bevel gear is fixed to the surface of the rotating rod.

[0007] A fixing tube is fixed to both ends of the rotating rod. A screw is movably connected to the other end of the fixing tube. A torsion plate is rotatably connected to one end of the fixing tube. The inside of the torsion plate is threadedly connected to the surface of the screw. A fixing rod is fixed to the other end of the screw, and a support plate is fixed to the other end of the fixing rod.

[0008] Preferably, a fixing plate is fixed to the surface of the fixing tube, and a movable rod is movably connected inside the fixing plate, with one end of the movable rod fixed to the top of the support plate.

[0009] Preferably, the rotary tiller body has movable grooves on both sides, and the size of the movable grooves is larger than the diameter of the fixed pipe.

[0010] Preferably, the outer side of the movable rod is provided with scale markings.

[0011] Preferably, a power supply housing is fixedly connected to the top of the rotary tiller body, and a battery is installed inside the power supply housing, and the battery is electrically connected to the motor.

[0012] Preferably, the bottom of the support plate is fixed with several anti-slip protrusions.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] Before separating the rotary tiller from the four-wheel machine, the motor drives the first bevel gear, the second bevel gear, and the rotating rod to rotate, which in turn drives the fixed tubes on both sides to rotate, allowing the fixed rods to contact the ground and thus support the rotary tiller. At the same time, through the threaded connection between the inside of the torsion disc and the surface of the screw, it can not only be stored but also the height of the support can be adjusted for better connection and use later. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a bottom-view structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the right-side structure in this utility model;

[0018] Figure 4 This is a top view of the structure of this utility model.

[0019] In the diagram: 1. Rotary tiller body; 2. Mounting frame; 3. Transmission device; 4. Rotating rod; 5. Motor; 6. First bevel gear; 7. Second bevel gear; 8. Fixed tube; 9. Torque disc; 10. Screw; 11. Fixed rod; 12. Support plate; 13. Movable rod; 14. Fixed plate; 15. Scale markings; 16. Anti-slip ridge; 17. Movable groove; 18. Power supply housing. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4As shown, a support mechanism for a rotary tiller includes a rotary tiller body 1. A mounting frame 2 is fixedly connected to the top of the rotary tiller body 1. A transmission device 3 for connecting to an external four-wheeled machine is provided on the inner side of the mounting frame 2. A rotating rod 4 is rotatably connected inside the mounting frame 2. A motor 5 is fixed to the top of the rotary tiller body 1. A first bevel gear 6 is bolted to the output shaft of the motor 5. A second bevel gear 7 meshes with the surface of the first bevel gear 6. The interior of the second bevel gear 7 is fixed to the surface of the rotating rod 4. Fixed tubes 8 are fixed to the surfaces of both ends of the rotating rod 4. A screw 10 is movably connected to the interior of the other end of the fixed tube 8. A torsion disc 9 is rotatably connected to one end of the fixed tube 8. The interior of the torsion disc 9 is threadedly connected to the surface of the screw 10. A fixed rod 11 is fixed to the other end of the screw 10, and a support plate 12 is fixed to the other end of the fixed rod 11.

[0022] It should be noted that the transmission device 3 is a relatively mature existing technology. After one end of it is connected to the four-wheel machine, the four-wheel machine will drive the blades at the rotary tiller body 1 to rotate and till the land through the transmission device 3. Therefore, this solution does not provide a detailed description of its specific structure.

[0023] A fixing plate 14 is fixed to the surface of the fixing tube 8. A movable rod 13 is movably connected inside the fixing plate 14. One end of the movable rod 13 is fixed to the top of the support plate 12. This can help limit the movement of the movable rod 13, so that the screw 10 can move stably inside the fixing tube 8.

[0024] The rotary tiller body 1 has movable grooves 17 on both sides of its surface, and the size of the movable grooves 17 is larger than the diameter of the fixed tube 8. As the rotating rod 4 rotates, the fixed tube 8 can be rotated to the inside of the movable grooves 17, thereby storing the fixed tube 8.

[0025] It should be noted that after the fixed tube 8 is rotated to the inside of the movable groove 17, the screw 10 will also enter the interior of the fixed tube 8. Furthermore, there is a certain gap between the blades at the rotary tiller body 1 and the fixed tube 8, so they will not come into contact with the fixed tube 8 and the support plate 12.

[0026] The outer side of the movable rod 13 is provided with scale marks 15, so that the position of the scale marks 15 on the surface of the fixed plate 14 can be observed, and the length of the torsion plate 9, screw 10, fixed rod 11 and support plate 12 on the other side can be adjusted.

[0027] A power supply housing 18 is fixedly connected to the top of the rotary tiller body 1, and a battery is installed inside the power supply housing 18. The battery is electrically connected to the motor 5, so that the power supply housing 18 can protect the battery so that the battery can supply power to the motor 5.

[0028] The bottom of the support plate 12 is fixed with several anti-slip protrusions 16, which can increase the friction between the support plate 12 and the ground, thereby improving the stability when supporting.

[0029] It is worth noting that the technical features proposed in this technical solution should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be selected using conventional methods in the field. This technical solution will not elaborate further.

[0030] Working principle: Before separating the rotary tiller from the four-wheel machine, the torsion disc 9 on one side can be rotated according to the angle position of the support. Then, the screw 10 will slide outward inside the fixed tube 8. During the sliding process, the length of the movable rod 13 can be observed through the scale mark 15. Then, the other torsion disc 9 is rotated, and the screw 10 is moved. After the two screws 10 have moved to the same length, the motor 5 can be started, which will drive the first bevel gear 6 to rotate. At the same time, the second bevel gear 7 and the rotating rod 4 will rotate, which will drive the two fixed tubes 8 to deflect, so that the support plate 12 contacts the ground, thereby supporting the rotary tiller body 1. Finally, the four-wheel machine can be separated from the transmission device 3.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] 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. A support mechanism for a rotary tiller, comprising a rotary tiller body (1), a mounting frame (2), and a transmission device (3) for connecting to an external four-wheeled vehicle, characterized in that, Also includes: Rotary rod (4) is rotatably connected inside the mounting frame (2). A motor (5) is fixed on the top of the rotary tiller body (1). The output shaft of the motor (5) is bolted with a first bevel gear (6). A second bevel gear (7) meshes with the surface of the first bevel gear (6). The interior of the second bevel gear (7) is fixed to the surface of the rotating rod (4). Fixed tubes (8) are fixed to the surfaces of both ends of the rotating rod (4). A screw (10) is movably connected to the interior of the other end of the fixed tube (8). A torsion plate (9) is rotatably connected to one end of the fixed tube (8). The interior of the torsion plate (9) is threadedly connected to the surface of the screw (10). A fixed rod (11) is fixed to the other end of the screw (10), and a support plate (12) is fixed to the other end of the fixed rod (11).

2. The support mechanism for a rotary tiller according to claim 1, characterized in that: A fixing plate (14) is fixed to the surface of the fixing tube (8), and a movable rod (13) is movably connected inside the fixing plate (14). One end of the movable rod (13) is fixed to the top of the support plate (12).

3. The support mechanism of a rotary tiller according to claim 1, characterized in that: The rotary tiller body (1) has movable grooves (17) on both sides of its surface, and the size of the movable grooves (17) is larger than the diameter of the fixed tube (8).

4. The support mechanism of a rotary tiller according to claim 2, characterized in that: The movable rod (13) is provided with scale markings (15) on its outer side.

5. The support mechanism of a rotary tiller according to claim 1, characterized in that: The top of the rotary tiller body (1) is fixedly connected to a power supply housing (18), and a battery is installed inside the power supply housing (18). The battery is electrically connected to the motor (5).

6. The support mechanism of a rotary tiller according to claim 1, characterized in that: The bottom of the support plate (12) is fixed with several anti-slip protrusions (16).