Small-sized electric self-propelled crawler-type field conveyor

Abstract

The utility model discloses a small electric self-propelled crawler-type field conveyor, and belongs to the technical field of conveyors. Comprising a control box, handles are installed at the positions, close to the top face, of the two sides of the control box, installation cavities are formed in the positions, close to the bottom face, of the two sides of the control box, driving parts are installed in the installation cavities, four supporting plates are installed on the back face of the control box, every two supporting plates form a pair, and a plurality of pairs of guide wheels are arranged between the pair of supporting plates; the outer sides of the multiple guide wheels are wrapped with a crawler belt, the output end of the driving part is in transmission connection with a driving wheel, the driving wheel is in meshed connection with the crawler belt, a fixing frame is further installed on the back face of the control box, a battery box is installed in the fixing frame, a battery is installed in the battery box, and a storage box is installed on the top face of the fixing frame. According to the technical scheme, through the meshing transmission design of the crawler belt and the driving wheels, the grounding area is greatly increased, the grounding specific pressure is reduced, and the sinking resistance in soft soil is fundamentally improved.

Description

Technical Field

[0001] This utility model relates to the field of transport aircraft technology, specifically a small electric self-propelled tracked rural transport vehicle. Background Technology

[0002] In agricultural production, field transport vehicles are key equipment connecting field operations and storage. Their core function is to transport harvested crops, fertilizers, pesticides, or farm tools from the field to field ridges or storage points, greatly reducing the labor intensity of manual handling and improving agricultural production efficiency.

[0003] However, existing rural transport vehicles have limitations in adapting to the complex terrain of rural areas, making it difficult to meet actual production needs. The specific problems are as follows:

[0004] Most mainstream small transport vehicles use rubber or pneumatic wheels. These wheels have a small contact area and concentrated pressure, making them prone to getting stuck in the soft soil common in fields. This necessitates manual towing, increasing labor costs. Furthermore, on uneven field ridges, the wheels can easily get stuck in the furrows, causing the vehicle to tilt or even tip over, making stable movement impossible. While some tracked transport vehicles designed for complex terrain have a large contact area and strong resistance to sinking, their large size and turning radius make them unable to navigate narrow field ridges or densely planted orchard rows, and they can easily crush crops. Moreover, their weight can compact the soil when driving on soft field surfaces, damaging soil aggregates and affecting subsequent crop growth. In summary, existing field transport vehicles, due to the poor sinking resistance of wheeled vehicles and the limited maneuverability of large tracked vehicles, cannot effectively adapt to the soft, narrow, and uneven ground conditions of fields, resulting in low usage and insufficient practicality in actual field operations. Therefore, there is an urgent need for a dedicated field transport vehicle that combines small size and maneuverability with the sinking resistance of tracked vehicles. Utility Model Content

[0005] The purpose of this invention is to provide a small electric self-propelled tracked field transport machine to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A small electric self-propelled tracked field transporter includes a control box. Handles are installed on both sides of the control box near its top surface. Mounting cavities are formed on both sides of the control box near its bottom surface, and drive components are installed within each cavity. Four support plates are mounted on the back of the control box, arranged in pairs. Several pairs of guide wheels are positioned between each pair of support plates. Tracks are wrapped around the outer sides of the guide wheels. A drive wheel is connected to the output end of the drive component, and the drive wheel meshes with the track. A fixing frame is also mounted on the back of the control box, and a battery box containing batteries is installed within the fixing frame. A mounting plate is installed on the top surface of the fixing frame. It features a storage box; adopts a tracked walking mechanism, significantly increasing the ground contact area and reducing the ground pressure, effectively preventing wheels from getting stuck in soft field soil. The large ground contact area of ​​the tracks can evenly distribute the weight of the machine, reducing the compaction and damage to the soil aggregate structure. Multiple pairs of guide wheels work with the tracks to form a continuous support surface, better adapting to the undulations between ridges and reducing the risk of tilting and tipping over. At the same time, the independent drive components on both sides provide a structural basis for differential steering, making the turning radius of the whole machine small, allowing it to move flexibly in narrow ridges or densely planted orchards. Finally, the control, drive, load-bearing, and power supply systems are integrated into one compact structure, facilitating the operation and transportation of agricultural materials and harvested goods.

[0008] Furthermore, the drive unit includes a base fixedly installed within the mounting cavity. A motor and a reducer are mounted on the side of the base. The output end of the motor is drive-connected to the input end of the reducer, and the output end of the reducer is drive-connected to the drive wheel. The motor, in conjunction with the reducer, converts high-speed, low-torque motor power into low-speed, high-torque driving power, meeting the needs of heavy-duty climbing and muddy road conditions. The base integrates the motor and reducer into a single module, facilitating arrangement and maintenance within the mounting cavity of the control box. Furthermore, the drive wheel has evenly distributed teeth on its side, and the inner side of the track is a track chain. The drive wheel and track mesh with each other through the teeth and track chain. This meshing transmission method avoids slippage that may occur in wheeled drives. Simultaneously, the meshing structure effectively prevents mud, weeds, and other foreign objects from obstructing the transmission system, ensuring continuous and reliable operation in dusty, muddy rural environments.

[0009] Furthermore, the bottom surface of the support plate is provided with several grooves, and a shaft is provided between a pair of support plates. The drive wheels of the same pair are coaxially connected to the shaft. Both ends of the shaft are coaxially connected with threaded rods. The threaded rods are located in the grooves and are threadedly engaged with nuts. The nuts press against the side of the support plate. Through the threaded rods and nuts at both ends of the shaft, the guide wheel assembly is firmly clamped between a pair of support plates. The grooves provide a precise installation position for the shaft, ensuring that the coaxiality of multiple pairs of guide wheels is consistent and ensuring smooth track operation.

[0010] Furthermore, the number of grooves and shafts is the same, and the number of drive wheels is twice the number of shafts. Furthermore, an LED light is installed on the back of the fixing frame; the LED light can provide illumination in the early morning, evening, or at night, making the equipment unrestricted by lighting conditions and effectively extending the daily working time. Simultaneously, in low-light environments, the LED light can illuminate the path ahead and the work area, reducing the risk of collisions or operational errors due to poor visibility. Finally, the LED light features low energy consumption, high brightness, and long lifespan, providing reliable illumination without significantly increasing the battery load.

[0011] Furthermore, the battery powers the motor and LED lights; battery power eliminates exhaust emissions and reduces noise, improving the field working environment and aligning with the development trend of green agriculture. Compared to internal combustion engines, the battery and motor have simpler structures, require fewer maintenance items, and have lower operating costs.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: This small electric self-propelled tracked field transporter, through the meshing transmission design of the track and drive wheel, significantly increases the ground contact area and reduces the ground pressure, fundamentally improving its resistance to subsidence in soft soil; the large ground contact design of the track evenly distributes the weight of the equipment to the ground, minimizing damage to the soil structure and protecting soil fertility and subsequent crop growth; the combination of multiple pairs of guide wheels and tracks provides continuous support; the adoption of an independent drive system on both sides achieves efficient differential steering, and the compact layout of the control box and support plate gives the equipment a very small turning radius, enabling it to move flexibly between narrow field ridges and avoid crushing crops. Attached Figure Description

[0013] Figure 1 This is a first three-dimensional structural schematic diagram of the small electric self-propelled tracked field transporter disclosed in an embodiment of the present utility model;

[0014] Figure 2 This is an exploded structural diagram of the small electric self-propelled tracked field transporter disclosed in an embodiment of the present utility model;

[0015] Figure 3 for Figure 2 Enlarged schematic diagram of structure A in the middle;

[0016] Figure 4 for Figure 2 Enlarged schematic diagram of structure B in the middle;

[0017] Figure 5 This is a second three-dimensional structural diagram of the small electric self-propelled tracked field transporter disclosed in an embodiment of this utility model.

[0018] In the diagram: 1. Control box; 2. Handle; 3. Base; 4. Motor; 5. Track; 6. Storage box; 7. Reducer; 8. Drive wheel; 9. Support plate; 10. Shaft; 11. Guide wheel; 12. Fixing frame; 13. Battery box; 14. LED light; 15. Threaded rod; 16. Groove. 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] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a small electric self-propelled tracked field transporter, including a control box 1. Handles 2 are installed on both sides of the control box 1 near its top surface. Mounting cavities are opened on both sides of the control box 1 near its bottom surface, and driving components are installed in each mounting cavity. Four support plates 9 are installed on the back of the control box 1, with each pair of support plates 9 paired together. Several pairs of guide wheels 11 are provided between each pair of support plates 9. Tracks 5 are wrapped around the outside of the guide wheels 11. The output end of the driving component is connected to a driving wheel 8, which meshes with the track 5. A fixing frame 12 is also installed on the back of the control box 1, and a battery box is installed inside the fixing frame 12. 13. A battery is installed inside the battery box 13, and a storage box 6 is installed on the top surface of the fixed frame 12. The operator controls the control unit in the control box 1 through the handle 2. The battery in the battery box 13 provides power to the drive components in the mounting cavities on both sides. After the drive components are started, their output end drives the drive wheel 8 to rotate. The drive wheel 8 transmits power to the track 5 through the meshing structure with the inner side of the track 5, so that it circulates around the track supported by the guide wheel 11. The friction generated by the track 5 contacting the ground propels the whole machine forward or backward. The support plate 9 provides a stable mounting base for the entire walking system. The fixed frame 12 is used to fix the battery box 13 and the storage box 6 to ensure the stability of the center of gravity.

[0021] Specifically, to achieve precise adjustment of track tension 5, this solution can add a track tension adjustment mechanism. This mechanism mainly consists of an adjustment bracket, an adjustment screw, a tensioning wheel, and a locking nut. The adjustment bracket is installed on the back of the control box 1 near track 5 by welding or bolting, ensuring that its position does not affect the original structure of the equipment or the normal operation of the track. The tensioning wheel is rotatably mounted on the movable end of the adjustment bracket via an axle. The adjustment screw passes through the fixed end of the adjustment bracket and is threadedly connected to the adjustment bracket, with one end connected to the axle support of the tensioning wheel. When track tension needs to be adjusted, the matching wrench is used to turn the adjustment screw. Because the adjustment screw is threaded into the adjustment bracket, when the screw is turned, it will move axially, thereby causing the tensioning wheel to move closer to or away from track 5. When the tensioning wheel moves closer to track 5, it lifts the track, stretching it and increasing the tension; conversely, it reduces the track tension. Once track 5 reaches the desired tension, tighten the locking nut on the adjusting screw. Utilize the friction between the nut and the adjusting bracket to lock the adjusting screw in its current position, thereby maintaining the track tension.

[0022] Specifically, this solution can also be configured with a disc brake system, mainly consisting of a brake lever, brake cable, brake caliper, and brake disc. When the operator pinches the brake lever on handle 2, the brake lever rotates around the hinge point, generating a pulling or pushing force. Subsequently, the brake lever pulls the brake cable, which transmits the force to the brake caliper. Under the action of the brake cable, the brake caliper pushes the internal brake pads against and presses them tightly onto the brake disc. This generates friction between the brake pads and the brake disc, hindering the rotation of the brake disc. Since the brake disc is connected to the drive wheel 8, the speed of the drive wheel 8 decreases accordingly, ultimately achieving deceleration or stopping of the entire machine. During this process, the user must stop rotating handle 2.

[0023] In one embodiment of this utility model, the driving component further includes a base 3 fixedly installed in the mounting cavity. A motor 4 and a reducer 7 are mounted on the side of the base 3. The output end of the motor 4 is connected to the input end of the reducer 7, and the output end of the reducer 7 is connected to the drive wheel 8. A battery supplies power to the motor 4 to make it run. The power output by the motor 4 is first transmitted to the reducer 7. The reducer 7 reduces the speed and increases the torque through a gear set and other mechanisms. The power after speed reduction and torque increase is transmitted to the drive wheel 8 through the output shaft of the reducer 7, directly driving it to rotate, thereby driving the track 5 to move.

[0024] Specifically, handle 2 integrates all the control elements required for operation, using Hall effect joysticks or potentiometer knobs as the core input. The amplitude of the joystick's movement or the rotation angle of the knob determines the current output to motor 4. The larger the amplitude, the larger the current, the higher the speed of motor 4, and the faster the vehicle travels. The left and right Hall effect joysticks or potentiometers independently drive the left and right motors 4. Steering is achieved by controlling the speed difference between the left and right motors 4. For example, when turning left, the speed of the left motor 4 is reduced, while the right motor 4 maintains its original speed or accelerates.

[0025] As an embodiment of this utility model, the drive wheel 8 has evenly distributed teeth on its side, and the inner side of the track 5 is a track chain. The drive wheel 8 and the track 5 are engaged by the teeth and the track chain. When the drive wheel 8 rotates, the evenly distributed teeth on its circumference are sequentially embedded between the links of the track chain on the inner side of the track 5. The tooth surface of the teeth interacts with the side of the track chain links to generate a force that propels the track 5 forward. This engagement relationship forces the track 5 and the drive wheel 8 to move synchronously, ensuring that power is not lost and providing stable driving force even on wet or steep ground.

[0026] As an embodiment of the present invention, the bottom surface of the support plate 9 is provided with a plurality of grooves 16, and a shaft 10 is provided between a pair of support plates 9. The same pair of drive wheels 8 and shaft 10 are coaxially connected. Both ends of the shaft 10 are coaxially connected with threaded rods 15. The threaded rods 15 are located in the grooves 16 and are threadedly connected with nuts. The nuts press against the side of the support plate 9.

[0027] Specifically, the threaded rod 15 can be fitted with an anti-slip pad, and the nut presses the anti-slip pad between itself and the side of the support plate 9, thereby improving the firmness of fixing the shaft 10. At the same time, the drive wheel 8 is rotatably mounted on the shaft 10 through the bearing.

[0028] In one embodiment of this utility model, the number of grooves 16 and shafts 10 are the same, and the number of drive wheels 8 is twice the number of shafts 10.

[0029] As one embodiment of this utility model, an LED light 14 is further installed on the back of the fixing frame 12. The LED light 14 is connected to the battery and the control circuit in the control box 1 via wires. The operator can control the LED light 14 to turn on and off via a switch on the control box 1. When turned on, current flows from the battery through the control switch to the LED light 14, causing it to emit light and illuminate the work area in front of the equipment.

[0030] In one embodiment of this utility model, the battery further supplies power to the motor 4 and the LED light 14. The battery in the battery box 13 is the core energy source of the entire machine, and it is connected to the controller in the control box 1 through the main power line. According to the operator's instructions, the controller distributes the DC power from the battery to the motors 4 on both sides with appropriate voltage and current to control their speed and direction. At the same time, the battery also supplies power to the LED light 14 through an independent branch to meet its lighting needs.

[0031] Specifically, the control box 1 is equipped with an interface for charging the battery, and a baffle is hinged to the interface.

[0032] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a control cabinet. The control circuit can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. A small electrically powered self-propelled track-type yard transporter characterized by, The control box (1) includes a handle (2) on both sides near its top surface. The control box (1) has a mounting cavity on both sides near its bottom surface, and a drive unit is installed in each mounting cavity. Four support plates (9) are installed on the back of the control box (1), and the four support plates (9) are paired up. Several pairs of guide wheels (11) are provided between each pair of support plates (9). Tracks (5) are wrapped around the outside of the guide wheels (11). The output end of the drive unit is connected to a drive wheel (8), and the drive wheel (8) and the track (5) are meshed together. A fixed frame (12) is also installed on the back of the control box (1). A battery box (13) is installed in the fixed frame (12), and a battery is installed in the battery box (13). A storage box (6) is installed on the top surface of the fixed frame (12).

2. A compact electrically powered self-propelled track-type yard transporter according to claim 1, characterised in that, The driving component includes a base (3) fixedly installed in the mounting cavity. A motor (4) and a reducer (7) are mounted on the side of the base (3). The output end of the motor (4) and the input end of the reducer (7) are connected in a driving connection. The output end of the reducer (7) and the drive wheel (8) are connected in a driving connection.

3. A compact electrically powered self-propelled track-type yard transporter according to claim 1 wherein, The drive wheel (8) has evenly distributed teeth on its side, and the inner side of the track (5) is a track chain. The drive wheel (8) and the track (5) mesh with each other through the teeth and the track chain.

4. A compact electrically powered self-propelled track-type yard transporter according to claim 1, characterized in that The bottom surface of the support plate (9) is provided with several grooves (16). A shaft (10) is provided between a pair of support plates (9). The drive wheels (8) and the shaft (10) are coaxially connected. Both ends of the shaft (10) are coaxially connected with threaded rods (15). The threaded rods (15) are located in the grooves (16) and are threadedly connected with nuts. The nuts press against the side of the support plate (9).

5. A compact electrically powered self-propelled track-type yard transporter according to claim 4 wherein, The number of grooves (16) and shafts (10) is the same, and the number of drive wheels (8) is twice the number of shafts (10).

6. A compact electrically powered self-propelled track-type yard transporter according to claim 2, characterised in that, LED lights (14) are installed on the back of the fixed frame (12).

7. A compact electrically powered self-propelled track-type yard transporter according to claim 6 wherein, The battery powers the motor (4) and the LED light (14).

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