Small self-propelled crawler belt rototiller

Abstract

This utility model discloses a small self-propelled tracked rotary tiller, including a frame, engine, PTO transmission box, travel gearbox, rear rotary tiller assembly, tracked wheel assembly, seat, and control mechanism. The seat is located on the upper front side of the frame, and the rear rotary tiller assembly is connected to the rear end of the frame via a implement connecting frame. The engine is located between the seat and the rear rotary tiller assembly, the PTO transmission box is located below the engine, and the travel gearbox is located below the seat. The output shaft of the PTO transmission box is connected to the rear rotary tiller assembly, and the two output half-shafts of the travel gearbox are connected to the drive wheels of the tracked wheel assembly. The control mechanism includes multiple control levers, with the operating ends of the control levers located on both sides of the seat. This utility model has a simpler structure, smaller size, and is easier to maintain. It is suitable for tillage in various environments, and the driving operation is more convenient, providing a better driving experience.

Description

Technical Field

[0001] This utility model relates to the field of rotary tiller technology, and in particular to a small self-propelled tracked rotary tiller. Background Technology

[0002] With societal development, agricultural operations are increasingly mechanized, especially in large-scale farming where mechanization is highly prevalent. However, in hilly and mountainous areas, where fields are small and scattered, and roads are generally narrow and steep, high-horsepower tracked rotary tillers struggle to adapt. In managing cash crops such as vegetable greenhouses and orchards, where row spacing is limited, users typically use mini-tillers, but operating them is physically demanding. Furthermore, existing tracked rotary tillers require extensive disassembly and repair of the drive gearbox, necessitating the disassembly of numerous components.

[0003] Meanwhile, the control levers of current tracked rotary tillers, including gear shift levers and clutch levers, all require several conversion mechanisms to reach the cab. The more mechanisms involved, the higher the manufacturing cost and the greater the probability of malfunctions.

[0004] Therefore, how to simplify the structure of tracked rotary tillers, make them smaller, more flexible in operation, provide a better driving experience, and make them easier to maintain has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to solve the problems of complex structure, large size and troublesome maintenance of existing tracked rotary tillers, and to provide a small self-propelled tracked rotary tiller with simpler structure, smaller size, convenient maintenance, suitable for farming in various environments, more convenient driving operation and better driving experience.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a small self-propelled tracked rotary tiller, including a frame, an engine, a PTO transmission box, a travel gearbox, a rear rotary tiller assembly, a tracked wheel assembly, a seat, and a control mechanism; characterized in that: the seat is located on the upper front side of the frame, and the rear rotary tiller assembly is connected to the rear end of the frame through a implement connecting frame. The engine is located between the seat and the rear rotary tiller assembly, and is fixedly connected to the frame via an engine bracket; the PTO transmission box is located below the engine and is fixedly connected to the frame; the travel gearbox is located below the seat and is fixedly connected to the frame; the seat is connected to the cover of the travel gearbox via a seat bracket. The output shaft of the engine is connected to a drive pulley, and the input shaft of the PTO transmission box and the input shaft of the travel gearbox are respectively connected to a driven pulley. A first transmission belt is wound on the drive pulley and the driven pulley of the input shaft of the PTO transmission box, and a second transmission belt is wound on the drive pulley and the driven pulley of the input shaft of the travel gearbox. The output shaft of the PTO transmission box is connected to the rear rotary tiller assembly, and the two output half shafts of the travel gearbox are connected to the drive wheels of the tracked wheel assembly. The control mechanism includes multiple joysticks, with the operating ends of the joysticks distributed on both sides of the seat.

[0007] Furthermore, a protective bar is provided around the upper part of the engine, which is arranged at least around the front and sides of the engine and connected to the frame by several pillars.

[0008] Furthermore, the engine also includes a fuel tank, which is mounted on a protective bar on one side of the engine.

[0009] Furthermore, the front end of the seat bracket is rotatably connected to the front end of the gearbox cover; the seat bracket has several positioning holes, and a connecting pin is provided on the lower side of the seat corresponding to the positioning hole position. The seat is connected to the seat bracket by inserting the connecting pin into the positioning hole.

[0010] Furthermore, it also includes a multi-way control valve, which is located between the seat and the engine and is fixedly connected to the vehicle frame via a control valve bracket.

[0011] Furthermore, it also includes a battery located below the multi-way control valve and fixedly connected to the vehicle frame.

[0012] Furthermore, the control mechanism includes a travel clutch control lever, a tool clutch control lever, a travel gearbox gear adjustment control lever, a tool lifting control lever, as well as a start / stop switch, a throttle switch, and a power switch.

[0013] Furthermore, the travel clutch lever, the implement clutch lever, as well as the start / stop switch, throttle switch, and power switch are located on one side of the seat, while the travel gearbox gear adjustment lever and the implement lifting lever are located on the other side of the seat.

[0014] Compared with the prior art, this utility model has the following advantages: the structure is simpler, and the overall size of the rotary tiller is smaller through reasonable layout, making it suitable for various farming environments and more convenient to drive and operate; in addition, the PTO transmission box and the travel gearbox are set separately at the front and rear, which makes it easier to maintain later; at the same time, the control levers are distributed on both sides of the seat, especially the gear adjustment control lever which directly acts on the gearbox, making the mechanism simple and reliable, improving the driving experience, and reducing manufacturing costs. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of one side of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure on the other side of this utility model.

[0017] In the diagram: 1—frame, 2—engine, 3—PTO transmission box, 4—travel gearbox, 5—track wheel assembly, 6—seat, 7—drive pulley, 8—driven pulley, 9—first drive belt, 10—second drive belt, 11—drive wheel, 12—protective bar, 13—fuel tank. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0020] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Example: See Figure 1 , Figure 2 A small self-propelled tracked rotary tiller includes a frame 1, an engine 2, a PTO transmission box 3, a travel gearbox 4, a rear rotary tiller assembly, a tracked wheel assembly 5, a seat 6, and a control mechanism. The seat 6 is located on the upper front side of the frame; the rear rotary tiller assembly is connected to the rear end of the frame 1 via a implement connecting frame.

[0022] The PTO transmission box 3 is located below the engine 2 and is fixedly connected to the frame 1. The drive gearbox 4 is located below the seat 6, and the seat 6 is connected to the cover of the drive gearbox 4 via a seat bracket. In implementation, a support frame is provided on the cover of the drive gearbox 4 to support the seat bracket; the front end of the seat bracket is rotatably connected to the front end of the cover of the drive gearbox 4; the front end of the seat bracket is rotatably connected to the support frame via a pin, thus allowing the seat 6 to be flipped forward, facilitating maintenance of the drive gearbox 4. In specific implementation, to improve the stability of the seat 6, the seat bracket has a support plate with several positioning holes at the front and rear ends. Limiting pins are provided on the underside of the seat 6 corresponding to the positions of each positioning hole. The seat 6 is connected to the seat bracket by inserting a connecting pin into the positioning hole, making the seat 6 easy and quick to install and remove, and preventing the seat 6 from sliding or flipping. By adopting this solution, the PTO transmission box 3 and the walking gearbox 4 are distributed front and rear, respectively, and located under the engine 2 and the seat 6. The overall distribution is more reasonable, which can greatly reduce the height and length of the entire rotary tiller, thereby reducing the overall volume of the rotary tiller.

[0023] It also includes a multi-way control valve located between the seat 6 and the engine 2, and fixedly connected to the frame 1 via a control valve bracket. This multi-way control valve is used to control the lifting and steering of the implement. It also includes a battery located below the multi-way control valve and fixedly connected to the frame 1.

[0024] The engine 2 is located between the seat 6 and the rear rotary tiller assembly, and is fixedly connected to the frame 1 via an engine 2 bracket. A protective bar 12 is provided around the upper part of the engine 2, at least around the front and sides of the engine 2, and connected to the frame 1 via several uprights; this effectively protects the engine 2, as well as the seat 6 and the driver. In implementation, the engine 2 also includes a fuel tank 13, which is mounted on the protective bar 12 on one side of the engine 2. This separate arrangement of the fuel tank 13 from the engine 2 reduces vibration of the fuel tank 13 and improves heat dissipation of the engine 2.

[0025] The output shaft of the engine 2 is connected to a drive pulley 7, which is either a double-groove pulley or a multi-groove pulley. The input shaft of the PTO transmission box and the input shaft of the travel gearbox 4 are each connected to a driven pulley 8. A first transmission belt 9 is wound around the driven pulley 8 on the input shaft of the PTO transmission box and the drive pulley 7, and a second transmission belt 10 is wound around the driven pulley 8 on the input shaft of the travel gearbox 4. The output shaft of the PTO transmission box is connected to the rear rotary tiller assembly, and the two output half-shafts of the travel gearbox 4 are connected to the drive wheels 11 of the tracked wheel assembly 5. In this design, the track of the tracked wheel assembly 5 adopts a trapezoidal track structure, and the drive wheels 11 of the tracked wheel assembly 5 are located close to the front end of the frame 1, which further reduces the height and volume of the entire tracked rotary tiller.

[0026] The control mechanism includes multiple levers, with their operating ends distributed on both sides of the seat 6. The control mechanism includes a travel clutch lever, a tool clutch lever, a travel gearbox 4-speed adjustment lever, a tool lifting lever, a start / stop switch, a throttle switch, and a power switch. The travel clutch lever, tool clutch lever, start / stop switch, throttle switch, and power switch are located on one side of the seat 6, while the travel gearbox 4-speed adjustment lever and the tool lifting lever are located on the other side of the seat 6.

[0027] This design, through a reasonable layout, makes the rotary tiller smaller in overall size, suitable for tillage in various environments, and more convenient to drive and operate; in addition, the PTO transmission box 3 and the travel gearbox 4 are set up separately at the front and rear, which makes it easier to maintain later; at the same time, the control levers are distributed on both sides of the seat 6, especially the gear adjustment control lever which directly acts on the gearbox, making the mechanism simple and reliable, improving the driving experience, and reducing manufacturing costs.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.

Claims

1. A compact, self-propelled, track-tread, rotary cultivator comprising a frame, an engine, a PTO transmission case, a travel transmission case, a rear rotary tiller assembly, a track travel wheel assembly, a seat, and a steering mechanism; characterized in that: The seat is located on the upper front side of the frame, and the rear rotary tiller assembly is connected to the rear end of the frame via a implement connecting frame. The engine is located between the seat and the rear rotary tiller assembly, and is fixedly connected to the frame via an engine bracket; the PTO transmission box is located below the engine and is fixedly connected to the frame; the travel gearbox is located below the seat and is fixedly connected to the frame; the seat is connected to the cover of the travel gearbox via a seat bracket. The output shaft of the engine is connected to a drive pulley, and the input shaft of the PTO transmission box and the input shaft of the travel gearbox are respectively connected to a driven pulley. A first transmission belt is wound on the drive pulley and the driven pulley of the input shaft of the PTO transmission box, and a second transmission belt is wound on the drive pulley and the driven pulley of the input shaft of the travel gearbox. The output shaft of the PTO transmission box is connected to the rear rotary tiller assembly, and the two output half shafts of the travel gearbox are connected to the drive wheels of the tracked wheel assembly. The control mechanism includes multiple joysticks, with the operating ends of the joysticks distributed on both sides of the seat.

2. A compact self-propelled crawler rotary cultivator according to claim 1, characterized in that: A protective bar is provided around the upper part of the engine, which is arranged at least around the front and sides of the engine and connected to the frame by several columns.

3. A compact self-propelled crawler rotary cultivator according to claim 2, characterized in that: The engine also includes a fuel tank, which is mounted on a protective bar on one side of the engine.

4. A compact self-propelled crawler rotary cultivator according to claim 1, characterized in that: The front end of the seat bracket is rotatably connected to the front end of the gearbox cover; the seat bracket has several positioning holes, and a connecting pin is provided on the lower side of the seat at the position corresponding to the positioning hole. The seat is connected to the seat bracket by inserting the connecting pin into the positioning hole.

5. A compact self-propelled crawler rotary cultivator according to claim 1, characterized in that: It also includes a multi-way control valve, which is located between the seat and the engine and is fixedly connected to the vehicle frame via a control valve bracket.

6. A compact self-propelled crawler rotary cultivator according to claim 5, characterized in that: It also includes a battery located below the multi-way control valve and fixedly connected to the vehicle frame.

7. A compact self-propelled crawler rotary cultivator according to claim 6, characterized in that: The control mechanism includes a travel clutch lever, a tool clutch lever, a travel gearbox gear adjustment lever, a tool lifting lever, a start / stop switch, a throttle switch, and a power switch.

8. A compact self-propelled crawler rotary cultivator according to claim 7, characterized in that: The travel clutch lever, the implement clutch lever, as well as the start / stop switch, throttle switch, and power switch are located on one side of the seat, while the travel gearbox gear adjustment lever and the implement lifting lever are located on the other side of the seat.

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