A small wheeled weed cutter

Abstract

This utility model discloses a small wheeled weed cutter. A battery pack, a weeding mechanism, and a drive mechanism are set on the chassis assembly. The battery pack supplies power to the drive mechanism, which in turn provides power to the weeding mechanism. The drive mechanism is an electric motor, which makes the whole vehicle structure lighter and more compact. At the same time, the battery pack can also supply power to the motor hubs in the chassis assembly. The four motor hubs drive the chassis frame to move, requiring a smaller space radius for turning or U-turns, and can adapt to a wider range of working environments.

Description

Technical Field

[0001] This utility model belongs to the field of weeding machine technology, specifically relating to a small wheeled weeding machine. Background Technology

[0002] Traditional weeding methods typically rely on manual labor or mechanized equipment, but these methods suffer from low efficiency and high labor intensity. Especially on complex terrain or slippery, soft soil, traditional weeders often cannot fully utilize their performance, resulting in low weeding efficiency. Existing weeders are usually unmanned, but their design does not consider complex terrain conditions. They are generally large and require significant operating space, making them unsuitable for densely planted environments, which limits their practicality under specific conditions. For example, tracked weeders, while adaptable to terrain, are difficult to drive with a motor and require engine power, resulting in higher fuel consumption, higher purchase and operating costs, and lower maneuverability due to the large space required for turning or maneuvering, which can easily damage crops. Utility Model Content

[0003] The purpose of this utility model is to provide a small wheeled weed cutter, which has a battery pack, a weeding mechanism and a drive mechanism set on the chassis assembly. The battery pack supplies power to the drive mechanism, and the drive mechanism provides power to the weeding mechanism. The drive mechanism is an electric motor, which makes the whole vehicle structure lighter and more compact. At the same time, the battery pack can also supply power to the motor hubs in the chassis assembly. The four motor hubs drive the chassis frame to move, and the space radius required for turning or U-turn is smaller.

[0004] A small wheeled weed cutter includes a chassis assembly, a weeding mechanism, a drive assembly, and a battery pack. The drive assembly and the battery pack are both mounted on the chassis assembly. The weeding mechanism is located at the front end of the chassis assembly and connected to it. The drive assembly is positioned between the weeding mechanism and the battery pack. The battery pack supplies power to both the chassis assembly and the drive assembly. The drive assembly is connected to the weeding mechanism and provides power to it.

[0005] Preferably, the drive assembly includes a motor, a drive wheel, a fixing member, a drive shaft, a first drive belt, and a second drive belt. The fixing member is connected to the chassis assembly and fixes the motor. The drive wheel is located on one side of the motor. The drive shaft is connected to the chassis assembly and spaced apart from the motor. The drive shaft rotates on the chassis assembly along its own axis. Drive wheels are respectively provided at both ends of the drive shaft. The drive wheel at the end of the motor is connected to the drive wheel at one end of the drive shaft via the first drive belt. The drive wheel at the other end of the drive shaft is connected to the weeding mechanism via the second drive belt.

[0006] Preferably, the chassis assembly includes a chassis frame and four motor hubs, the motor hubs being used to drive the chassis frame to move; a mounting base is provided on the chassis frame, the motor is mounted on the mounting base, and the fixing member is connected to the mounting base.

[0007] Preferably, a first support plate, a second support plate, and a third support plate are spaced apart on one end of the chassis frame near the weeding mechanism, and the weeding mechanism is connected to the second support plate and the third support plate respectively; the drive shaft is disposed between the first support plate and the second support plate.

[0008] Preferably, the weeding mechanism includes a blade assembly, a blade cover, and a connecting frame. The blade assembly is connected to the blade cover and protrudes below the blade cover. The end of the blade assembly is connected to a second transmission belt and rotates within the blade cover. The connecting frame is located on top of the blade cover and includes two connecting pipes and a crossbeam. The crossbeam is positioned between the connecting pipes to keep them stable. The two connecting pipes are respectively connected to a second support plate and a third support plate.

[0009] Preferably, a first shaft cylinder is provided between the first support plate and the second support plate, and the transmission shaft is disposed in the first shaft cylinder and rotates in the first shaft cylinder; a second shaft cylinder is provided on the side of the third support plate away from the second support plate, and the length of the second shaft cylinder is less than the length of the first shaft cylinder; a split clamp is provided at the end of the connecting pipe, and the split clamp is connected to the first shaft cylinder and the second shaft cylinder respectively.

[0010] Preferably, the connecting pipe rotates along the first and second shafts, an electric push rod is provided on the chassis frame, the electric push rod is connected to the crossbeam of the connecting frame, the electric push rod is electrically connected to the battery pack, and the electric push rod is used to adjust the height of the weeding mechanism from the ground.

[0011] Preferably, the tool assembly includes a tool shaft, multiple fixed tools, multiple fixed discs, two bearing seats, and a pulley. The two bearing seats are respectively disposed at both ends of the tool cover, and bearings are disposed in the bearing seats. Both ends of the tool shaft pass through the bearings in the two bearing seats and protrude. The pulley is located outside the tool cover and is connected to one end of the tool shaft. The pulley is used to connect to a second transmission belt. The multiple fixed discs are spaced apart on the tool shaft, and the edges of the fixed discs are spaced apart with slots. Each fixed tool is connected to a corresponding slot on one of the multiple fixed discs.

[0012] Preferably, the bottom of the tool cover is provided with a baffle, the baffle is inclined toward the tool assembly, and the bottom of the baffle is higher than the bottom of the tool assembly is higher than the bottom of the tool assembly.

[0013] Preferably, the chassis frame is provided with a mounting groove, a limiting pad is provided in the mounting groove, and the battery pack is disposed in the limiting pad.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects: 1) In this utility model, a battery pack, a weeding mechanism and a drive mechanism are set on the chassis assembly. The battery pack supplies power to the drive mechanism, and the drive mechanism provides power to the weeding mechanism. The drive mechanism is an electric motor, which makes the whole vehicle structure lighter and more compact. At the same time, the battery pack can also supply power to the motor hubs in the chassis assembly. The four motor hubs drive the chassis frame to move, and the space radius required for turning or U-turn is smaller, which can adapt to a variety of working environments.

[0015] 2) In this utility model, the chassis frame and drive mechanism are both designed to be lightweight. The vehicle body is much lighter than that of a tracked weed cutter of the same size. It will not get stuck in muddy working environments. In addition, the overall structure of the vehicle body is relatively simple, the production cost is low, and it is easy to maintain and repair. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the small wheeled weed cutter of this utility model.

[0018] Figure 2 This is a front structural diagram of the small wheeled weed cutter of this utility model.

[0019] Figure 3 This is a schematic diagram of the chassis assembly structure of the small wheeled weed cutter of this utility model.

[0020] Figure 4 This is a schematic diagram of the blade assembly structure in the small wheeled weed cutter of this utility model.

[0021] The components are: 1-chassis frame, 11-mounting slot, 12-limiting pad, 13-mounting seat, 14-first support plate, 15-second support plate, 16-third support plate, 17-first shaft cylinder, 18-second shaft cylinder, 2-motor hub, 3-drive assembly, 31-motor, 32-fixed component, 33-drive wheel, 34-first transmission belt, 35-drive shaft, 36-second transmission belt, 4-tool cover, 41-baffle, 5-connecting frame, 51-connecting pipe, 52-crossbeam, 53-split clamp, 54-electric push rod, 6-tool assembly, 61-tool shaft, 62-fixed disc, 63-fixed tool, 64-bearing seat, 65-pulley, 7-battery pack. Detailed Implementation

[0022] 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 some embodiments of this utility model, but not all embodiments.

[0023] Example 1: A small wheeled weed cutter, such as Figure 1 , Figure 2 and Figure 3 As shown, the system includes a chassis assembly, a weeding mechanism, a drive assembly 3, and a battery pack 7. Both the drive assembly 3 and the battery pack 7 are mounted on the chassis assembly. The weeding mechanism is located at the front end of the chassis assembly and connected to it. The drive assembly 3 is positioned between the weeding mechanism and the battery pack 7. The battery pack 7 supplies power to both the chassis assembly and the drive assembly 3. The chassis assembly includes a chassis frame 1 and four motor hubs 2. The motor hubs 2 are used to drive the chassis frame 1 to move. The battery pack 7 is electrically connected to the motor hubs 2. The drive assembly 3 is connected to the weeding mechanism and provides power to it.

[0024] The drive assembly 3 includes a motor 31, a drive wheel 33, a fixing member 32, a transmission shaft 35, a first transmission belt 34, and a second transmission belt 36. The fixing member 32 is connected to the chassis frame 1 and fixes the motor 31. A mounting seat 13 is provided on the chassis frame 1, and the mounting seat 13 protrudes from the chassis frame 1. The motor 31 is mounted on the mounting seat 13, and the fixing member 32 is connected to the mounting seat 13. The fixing member 32 has a cylindrical structure with a support foot at its bottom. The fixing member 32 is sleeved on the motor 31, and its bottom support foot is connected to the mounting seat 13 by bolts. The drive wheel 33 is located on one side of the motor 31. The drive shaft 35 is connected to the chassis frame 1 and spaced apart from the motor 31. The drive shaft 35 can rotate along its own axis on the chassis frame 1. Drive wheels are provided at both ends of the drive shaft 35. The diameter of the drive wheel closer to the motor 31 is larger than that of the drive wheel farther away from the motor 31. The drive wheel 33 at the end of the motor 31 is connected to the drive wheel closer to the drive shaft 35 via a first drive belt 34. The motor 31 outputs power to the drive shaft 35. The drive wheel at the other end of the drive shaft 35 is connected to the weeding mechanism via a second drive belt 36, so that the motor 31 outputs power to the weeding mechanism. A mounting groove 11 is provided on the chassis frame 1. Multiple limiting pads 12 are provided in the mounting groove 11. The battery pack 7 is composed of multiple independent battery blocks. Each battery block is placed in a limiting pad 12. The limiting pad 12 is connected to the chassis frame 1 by bolts. The battery blocks are fixed to the chassis frame 1 by the limiting pads 12.

[0025] Example 2: This embodiment, based on the above embodiments, further defines the chassis frame and the cutting tool assembly, such as... Figure 1 , Figure 2 and Figure 3 The chassis frame 1 shown has a first support plate 14, a second support plate 15, and a third support plate 16 spaced apart near the weeding mechanism. The first support plate 14 is located at the edge of the chassis frame 1. The second support plate 15 and the third support plate 16 are arranged parallel to the first support plate 14 and are located in the middle of the chassis frame 1. The weeding mechanism is connected to the sides of the second support plate 15 and the third support plate 16 respectively. The drive shaft 35 is located between the first support plate 14 and the second support plate 15.

[0026] The weeding mechanism includes a blade assembly 6, a blade cover 4, and a connecting frame 5. The blade assembly 6 is connected to the blade cover 4 and protrudes below the blade cover 4. The end of the blade assembly 6 is connected to the second transmission belt 36 and rotates within the blade cover 4. The connecting frame 5 is located on top of the blade cover 4 and includes two parallel connecting pipes 51 and a crossbeam 52. The crossbeam 52 is positioned between the connecting pipes 51 to keep the connecting pipes 51 stable. The crossbeam 52 is located at the front end of the blade cover 4. The two connecting pipes 51 are respectively connected to the sides of the second support plate 15 and the third support plate 16. A first shaft cylinder 17 is provided between the first support plate 14 and the second support plate 15. The transmission shaft 35 is disposed in the first shaft cylinder 17 and rotates in the first shaft cylinder 17. A bearing assembly is provided in the first shaft cylinder 17, which supports and limits the transmission shaft 35, allowing the transmission shaft 35 to rotate in the first shaft cylinder 17. The first shaft cylinder 17 remains fixed between the first support plate 14 and the second support plate 15. A second shaft cylinder 18 is provided on the side of the third support plate 16 away from the second support plate 15. The length of the second shaft cylinder 18 is less than the length of the first shaft cylinder 17. A split clamp 53 is provided at the end of the connecting pipe 51. The split clamp 53 is connected to the first shaft cylinder 17 and the second shaft cylinder 18 respectively. The split clamps 53 at the ends of the two connecting pipes 51 are respectively limited by bolts in the first shaft cylinder 17 and the second shaft cylinder 18. The connecting pipe 51 can rotate on the first shaft cylinder 17 and the second shaft cylinder 18 to adjust the angle of the tool assembly 6. An electric push rod 54 is installed on the chassis frame 1. The electric push rod 54 is connected to the bottom of the crossbeam 52 of the connecting frame 5 and is electrically connected to the battery pack 7. The electric push rod 54 is used to adjust the height of the weeding mechanism from the ground. The electric push rod 54 has a self-locking function, which allows the blade assembly 6 to stay at a suitable height for weeding. In addition, the tension of the second transmission belt 36 can be adjusted by the height of the blade cover 4. A baffle 41 is provided at the bottom of the blade cover 4. The baffle 41 is connected to the blade cover 4 by multiple bolts. The baffle 41 is inclined towards the blade assembly 6. The bottom of the baffle 41 is higher than the bottom of the blade assembly 6 from the ground, so that the fixed blade 63 can contact the roots of the weeds.

[0027] Example 3: This embodiment further defines the tool assembly based on the above embodiments, such as... Figure 1 , Figure 2 and Figure 4As shown, the tool assembly 6 includes a tool shaft 61, multiple fixed blades 63, multiple fixed discs 62, two bearing seats 64, and a pulley 65. The two bearing seats 64 are respectively located at both ends of the tool cover 4, and bearings are installed in the bearing seats 64. Both ends of the tool shaft 61 pass through the bearings in the two bearing seats 64 and protrude outwards. The tool shaft 61 is axially limited by the bearing seats 64. The pulley 65 is located outside the tool cover 4 and connected to one end of the tool shaft 61. The pulley 65 is used to connect to the second transmission belt 36. Multiple fixed discs 62 are spaced apart on the tool shaft 61 and are welded to the tool shaft 61. The edges of the fixed discs 62 are spaced apart with slots. Each fixed blade 63 is connected to a corresponding slot on one of the multiple fixed discs 62. The fixed blades 63 are spirally arranged around the tool shaft 61 in a spiral structure. Other parts of this embodiment are the same as those in the above embodiment and will not be described again here.

[0028] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to 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 this utility model.

[0029] Furthermore, the use of terms such as "horizontal" or "vertical" in the description of this utility model does not imply that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this utility model, 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 utility model based on the specific circumstances.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A small-sized wheeled weeding machine characterized by comprising: The application relates to a weeding machine, which comprises a chassis assembly, a weeding mechanism, a driving assembly and a battery pack, wherein the driving assembly and the battery pack are arranged on the chassis assembly, the weeding mechanism is arranged at the front end of the chassis assembly and connected with the chassis assembly, the driving assembly is arranged between the weeding mechanism and the battery pack, and the battery pack supplies power to the chassis assembly and the driving assembly respectively. The driving assembly is connected with the weeding mechanism and provides power for the weeding mechanism.

2. The compact wheeled weeder of claim 1, wherein, The driving assembly comprises a motor, a driving wheel, a fixing member, a transmission shaft, a first transmission belt and a second transmission belt, the fixing member is connected with the chassis assembly and fixes the motor, the driving wheel is arranged at one side of the motor, the transmission shaft is connected with the chassis mechanism and arranged at intervals from the motor, and the transmission shaft rotates along its axis on the chassis assembly; the transmission shaft is provided with transmission wheels at two ends respectively, the driving wheel at the end of the motor is connected with the transmission wheel at one end of the transmission shaft through the first transmission belt, and the transmission wheel at the other end of the transmission shaft is connected with the weeding mechanism through the second transmission belt.

3. The compact wheeled weeder of claim 2, wherein, The chassis assembly comprises a chassis frame and four motor hubs, the motor hubs are used for driving the chassis frame to move, the chassis frame is provided with a mounting seat, the motor is arranged on the mounting seat, and the fixing member is connected with the mounting seat.

4. The compact wheeled weeder of claim 3, wherein, The chassis frame is provided with a first support plate, a second support plate and a third support plate at intervals at one end close to the weeding mechanism, the weeding mechanism is connected with the second support plate and the third support plate respectively, and the transmission shaft is arranged between the first support plate and the second support plate.

5. The compact wheeled weeder of claim 4, wherein, The weeding mechanism comprises a cutter assembly, a cutter cover and a connecting frame, the cutter assembly is connected with the cutter cover, the cutter assembly is arranged protruding below the cutter cover, the end of the cutter assembly is connected with the second transmission belt and rotates in the cutter cover, and the connecting frame is arranged at the top of the cutter cover and comprises two connecting pipes and a cross beam.

6. The compact wheeled weeder of claim 5, wherein, A first shaft cylinder is arranged between the first support plate and the second support plate, the transmission shaft is arranged in the first shaft cylinder and rotates in the first shaft cylinder, a second shaft cylinder is arranged on the side of the third support plate away from the second support plate, the length of the second shaft cylinder is smaller than that of the first shaft cylinder, and the end of the connecting pipe is provided with a split type hoop connected with the first shaft cylinder and the second shaft cylinder respectively.

7. The compact wheeled weeder of claim 5, wherein, The connecting pipe rotates along the first shaft cylinder and the second shaft cylinder, the chassis frame is provided with an electric push rod connected with the cross beam of the connecting frame, the electric push rod is electrically connected with the battery pack, and the electric push rod is used for adjusting the height of the weeding mechanism from the ground.

8. The compact wheeled weeder of claim 5, wherein, The cutter assembly comprises a cutter shaft, a plurality of fixed knives, a plurality of fixed discs, two bearing seats and a belt pulley, the two bearing seats are respectively arranged at two ends of the cutter cover, bearings are arranged in the bearing seats, the cutter shaft protrudes through the bearings in the two bearing seats at two ends, the belt pulley is located outside the cutter cover and connected with one end of the cutter shaft, and the belt pulley is used for connecting a second transmission belt; a plurality of the fixed discs are arranged on the cutter shaft at intervals, and a clamping groove is arranged at the edge of each fixed disc; and each fixed knife is connected with a corresponding clamping groove on the fixed disc.

9. The compact wheeled weeder of claim 5, wherein, The bottom of the cutter cover is provided with a baffle, the baffle is arranged in an inclined manner towards the cutter assembly, and the height of the bottom of the baffle from the ground is greater than the height of the bottom of the cutter assembly from the ground.

10. The compact wheeled weeder of claim 3, wherein, The bottom disc frame is provided with a mounting groove, a limiting pad is arranged in the mounting groove, and the battery pack is arranged in the limiting pad.

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