Light steering four-wheel-drive mini-tiller

Abstract

The utility model relates to the technical field of mini-tillers, in particular to a light steering four-wheel-drive mini-tiller which comprises a machine frame chassis, driving wheels are arranged at the four corners of the machine frame chassis, a rotary tillage tool is arranged at the front end of the machine frame chassis, a handrail distributed in an inclined mode is arranged at the rear end of the machine frame chassis, and a driving box is arranged at the bottom of the middle of the machine frame chassis. Mounting seats are symmetrically arranged outside the bottom end of the driving box, auxiliary wheels are mounted on the mounting seats, a support is arranged at the position, corresponding to the driving box, of the top of the rack chassis, and an adjusting structure used for adjusting and controlling the inclination angle of the driving box is arranged on the support. The portable steering four-wheel-drive mini-tiller can improve the operation experience of an operator, reduces the labor intensity, and improves the operation efficiency and safety.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-tillers, in particular to a lightweight steering four-wheel drive micro-tiller. Background Technique

[0002] Micro-tillers are powered by small diesel engines or gasoline engines, and have the characteristics of light weight, small size, and simple structure. Micro-tillers are widely applicable to dry land, paddy fields, orchards, etc. in plains, mountains, and hills. However, at present, the micro-tillers on the market are mainly driven by a single rotary tiller shaft, and the strong vibrations generated by the vibration of the internal combustion engine and the alternating entry of the rotary tiller shaft into the soil seriously affect the operation comfort and personnel health. Therefore, it is necessary to further improve the key technical level of four-wheel drive micro-tillers.

[0003] The existing four-wheel drive micro-tillers play an important role in agricultural production, but there are still deficiencies in terms of operation simplicity and steering flexibility. Especially for small plots and complex terrains, traditional micro-tillers are more laborious to operate due to their large size and inflexible steering, increasing the labor burden of operators. Therefore, the utility model proposes a lightweight steering four-wheel drive micro-tiller. Content of the Utility Model

[0004] The purpose of the utility model is to provide a lightweight steering four-wheel drive micro-tiller to solve the problems of inconvenient operation and inflexible steering of the current four-wheel drive micro-tillers in small plots and complex terrains proposed in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a lightweight steering four-wheel drive micro-tiller, including a frame chassis, drive wheels are provided at the four corners of the frame chassis, a rotary tillage tool is provided at the front end of the frame chassis, an inclined handrail is provided at the rear end of the frame chassis, a drive box is provided at the bottom in the middle of the frame chassis, mounting seats are symmetrically provided outside the bottom end of the drive box, auxiliary wheels are mounted on the mounting seats, and a bracket is provided at a position corresponding to the drive box on the top of the frame chassis, and an adjusting structure for adjusting the inclination angle of the drive box is provided on the bracket.

[0006] Preferably, the adjusting structure on the bracket includes a disc, an adjusting shaft and a first motor, the first motor is fixedly installed at the rear side of the bracket, the disc is provided at the front side of the bracket, and the output end of the first motor is connected to the center of the inner side of the disc, and the adjusting shaft is connected between one side of the front end of the disc and the top of the front end of the drive box.

[0007] Preferably, an annular slider is provided on the back side of the disc, and an annular sliding seat matching the structure of the annular slider is provided on the front side of the bracket.

[0008] Preferably, a second motor is installed on one side of the outside of the drive box. A rotating rod distributed horizontally is arranged inside the drive box, and first gears are fixedly sleeved on both sides of the rotating rod inside the drive box.

[0009] Preferably, a rotating column that movably penetrates through the bottom wall of the drive box is arranged on the top of the mounting seat, and a second gear that meshes with the first gear is arranged at the top end of the rotating column.

[0010] Preferably, an inlay block is arranged on the auxiliary wheel top plate, an inlay groove that matches the structure of the inlay block is arranged inside the mounting seat, and a positioning pin penetrates through the mounting seat.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: This lightweight steering four-wheel drive micro-tiller can improve the operator's operation experience, reduce the labor intensity, and improve the operation efficiency and safety. This lightweight steering four-wheel drive micro-tiller enhances the ground grip of the drive wheels and the terrain adaptability of the micro-tiller by the adjustment structure on the bracket, dynamically adjusting the inclination angles of the drive box and the auxiliary wheels, effectively improving the stability and passability in complex environments. At the same time, the function of synchronously adjusting the direction of the auxiliary wheels simplifies the steering operation, improves the steering flexibility and accuracy, and overcomes the problem of inconvenient operation of traditional four-wheel drive micro-tillers. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of a lightweight steering four-wheel drive micro-tiller of the present utility model;

[0013] Figure 2 is a schematic side view structural diagram of the middle part of the frame chassis of a lightweight steering four-wheel drive micro-tiller of the present utility model;

[0014] Figure 3 is a schematic structural diagram of the connection between the auxiliary wheel and the mounting seat of a lightweight steering four-wheel drive micro-tiller of the present utility model.

[0015] In the figure: 1, frame chassis; 2, drive wheel; 3, rotary tiller; 4, bracket; 5, drive box; 6, mounting seat; 7, auxiliary wheel; 8, disc; 9, adjusting shaft; 10, first motor; 11, annular slider; 12, second motor; 13, first gear; 14, second gear; 15, rotating column; 16, inlay block; 17, positioning pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1-3, the present utility model provides a technical solution: a lightweight steering four-wheel drive micro-tiller, which includes a frame chassis 1. Driving wheels 2 are provided at the four corners of the frame chassis 1, and a rotary tiller 3 is provided at the front end of the frame chassis 1. Both the driving wheels 2 and the rotary tiller 3 use the engine as the power source. An inclined handrail is provided at the rear end of the frame chassis 1. A drive box 5 is provided at the bottom in the middle of the frame chassis 1. Mounting seats 6 are symmetrically provided outside the bottom end of the drive box 5. An auxiliary wheel 7 is installed on the mounting seat 6. The auxiliary wheel 7 is made of a low-friction material. A bracket 4 is welded and fixed at the position on the top of the frame chassis 1 corresponding to the drive box 5. An adjusting structure for regulating the inclination angle of the drive box 5 is provided on the bracket 4. The adjusting structure on the bracket 4 of this structure can appropriately adjust the inclination angles of the two auxiliary wheels 7 by adjusting the inclination angle of the drive box 5. In this way, the grip of the driving wheels 2 can be effectively increased, the slipping phenomenon can be reduced, and the passing performance and stability of the micro-tiller in complex terrains can be improved to adapt to different tillage environments. And the drive box 5 can synchronously adjust the direction of the auxiliary wheels 7 to reduce the force required for the micro-tiller to turn, improve the steering accuracy and flexibility, thus effectively solving the deficiencies of the traditional four-wheel drive micro-tiller in terms of steering flexibility and operation convenience, providing a more efficient and lightweight solution for agricultural mechanized operations, especially suitable for the development needs of modern miniaturized and refined agriculture. The adjusting structure on the bracket 4 includes a disc 8, an adjusting shaft 9 and a first motor 10. The first motor 10 is fixedly installed on the rear side of the bracket 4 by bolts. The disc 8 is provided on the front side of the bracket 4, and the output end of the first motor 10 is connected to the center inside the disc 8. The adjusting shaft 9 is connected between one side of the front end of the disc 8 and the top of the front end of the drive box 5. Both the upper and lower ends of the adjusting shaft 9 are hinged to the disc 8 and the connection part of the drive box 5 through rotating shafts. Both sides of the rear end of the drive box 5 are movably connected to the bottom wall of the bracket 4 through rotating pins, and the connection part of the adjusting shaft 9 with the disc 8 and the drive box 5 is also hinged through a pin shaft. When the first motor 10 of this structure drives on the bracket 4, it will drive the disc 8 to rotate by a certain amplitude. When the disc 8 rotates, it can drive one end of the drive box 5 through the adjusting shaft 9 to realize the function of real-time regulating the inclination angle of the drive box 5, and then optimize the angle of the auxiliary wheels 7. A ring-shaped slider 11 is welded and fixed on the back side of the disc 8, and a ring-shaped sliding seat matching the structure of the ring-shaped slider 11 is provided on the front side of the bracket 4. When the disc 8 of this structure rotates, it will drive the ring-shaped slider 11 to slide in the ring-shaped sliding seat on the bracket 4, which is beneficial to improving the stability when rotating the angle. A second motor 12 is installed on one side of the outside of the drive box 5 by bolts. A rotating rod is transversely distributed inside the drive box 5. The output end of the second motor 12 is connected to one end of the rotating rod inside the drive box 5 through a coupling. First gears 13 are fixedly sleeved on both sides of the rotating rod inside the drive box 5. A rotating column 15 is movably inserted through the top of the mounting seat 6 on the bottom wall of the drive box 5, and a second gear 14 meshing with the first gear 13 is welded and fixed at the top end of the rotating column 15.When the second motor 12 of this structure is driven, it will drive the rotating rod inside the drive box 5 to rotate. At this time, the rotating rod transmits the rotating force to the first gear 13. Subsequently, through the meshing of the first gear 13 and the second gear 14, the power is efficiently transmitted to the rotating column 15, and finally drives the auxiliary wheel 7 installed on the mounting seat 6 to rotate, thereby realizing the control of the speed and direction of the auxiliary wheel 7, which helps to balance the overall thrust distribution of the micro-tiller, reduce the risk of side slip, and improve the stability and efficiency during operation. There is an embedded block 16 on the top plate of the auxiliary wheel 7, and an embedded groove that matches the structure of the embedded block 16 is provided inside the mounting seat 6. And a positioning pin 17 is inserted through the mounting seat 6. There is a perforation that matches the structure of the positioning pin 17 inside the embedded block 16. The auxiliary wheel 7 of this structure can be locked by inserting the embedded block 16 into the embedded groove inside the mounting seat 6 and using the positioning pin 17, so that the auxiliary wheel 7 can be conveniently installed or removed according to the operation requirements, realizing the flexible conversion between portability and high maneuverability.

[0018] Working principle: When using this portable steering four-wheel drive micro-tiller, first start the engine of the micro-tiller. The power generated by it first enters the transmission system to drive the driving wheels 2 and the rotary tiller 3 to work. That is, on the one hand, it drives the driving wheels 2 at the four corners to rotate, providing the power for forward or backward movement. On the other hand, it is transmitted to the rotary tiller 3 located at the front end through a specific transmission route to make it carry out tilling operations. Then the operator starts the first motor 10 to drive the disc 8 to rotate. The rotation of the disc 8 is transmitted through the adjusting shaft 9, so that the front end of the drive box 5 tilts with the rotation of the disc 8, and then adjusts the inclination angle of the auxiliary wheel 7, optimizing the grip of the driving wheels 2 and enhancing the adaptability to complex terrains. At the same time, start the second motor 12. The second motor 12 is connected to the horizontal rotating rod inside the drive box 5 through a coupling, driving the first gear 13 to rotate. The second gear 14 meshes with the first gear 13 to transmit the power to the auxiliary wheel 7 via the rotating column 15, realizing the active rotation of the auxiliary wheel 7 and enhancing the controllability and stability of the micro-tiller. When the operation requirements change, by inserting the embedded block 16 on the top of the auxiliary wheel 7 into the embedded groove of the mounting seat 6 and fixing it with the positioning pin 17, the quick installation or disassembly of the auxiliary wheel 7 is realized to adapt to different operation conditions, thus completing a series of operations.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A light steering four-wheel drive micro-tillage machine, comprising a frame chassis (1), wherein the four corners of the frame chassis (1) are provided with driving wheels (2), and the front end of the frame chassis (1) is provided with a rotary tillage tool (3), and the rear end of the frame chassis (1) is provided with an inclined handrail, characterized in that: A driving box (5) is provided at the bottom of the middle of the frame chassis (1), a mounting seat (6) is symmetrically provided outside the bottom end of the driving box (5), an auxiliary wheel (7) is installed on the mounting seat (6), and a bracket (4) is provided at a position corresponding to the driving box (5) on the top of the frame chassis (1), and an adjustment structure for adjusting the inclination angle of the driving box (5) is provided on the bracket (4).

2. A lightweight steering four-wheel drive tiller according to claim 1, characterized in that: The adjustment structure on the bracket (4) comprises a disc (8), an adjustment shaft (9) and a first motor (10); the first motor (10) is fixedly mounted on the rear side of the bracket (4); the disc (8) is arranged on the front side of the bracket (4); the output end of the first motor (10) is connected to the center of the inner side of the disc (8); and the adjustment shaft (9) is connected between one side of the front end of the disc (8) and the top of the front end of the drive box (5).

3. A lightweight steering four-wheel drive tiller according to claim 2, characterized in that: An annular sliding block (11) is provided on the back side of the disc (8), and an annular sliding seat matching the structure of the annular sliding block (11) is provided on the front side of the bracket (4).

4. The portable steering four-wheel drive micro-tillage machine according to claim 1, characterized in that: A second motor (12) is installed on one side of the outside of the drive box (5), and a rotating rod distributed in a transverse direction is provided inside the drive box (5). First gears (13) are fixedly sleeved on both sides of the rotating rod inside the drive box (5).

5. A lightweight steering four-wheel drive tiller according to claim 4, characterized in that: The top of the mounting seat (6) is provided with a rotating column (15) which is movably inserted into the bottom wall of the driving box (5), and the top of the rotating column (15) is provided with a second gear (14) which meshes with the first gear (13).

6. The portable steering four-wheel drive micro-tillage machine according to claim 1, characterized in that: An insert block (16) is provided on the top plate of the auxiliary wheel (7), and an insert groove matching the structure of the insert block (16) is provided inside the mounting seat (6), and a positioning pin (17) is inserted through the mounting seat (6).

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