Four-wheel independent steering chassis

Abstract

The utility model relates to the technical field of four-wheel chassis, and discloses a four-wheel independent steering chassis which comprises a mounting frame, four independent wheel sets are arranged at the bottom of the mounting frame, and a storage box is hinged to the top of the mounting frame. The anti-inclination assembly is used for preventing materials in the storage box from falling off due to excessive inclination of the storage box; and the balance assembly is used for improving the balance of the mounting frame during driving. Through the cooperation of the mounting frame, the four independent wheel sets and the storage box, simple material transportation is achieved, meanwhile, pivot steering and Ackerman steering can be achieved, flexibility is improved, and the vehicle can conveniently run in the field and can flexibly pass through various curves; through the arrangement of the anti-inclination assembly, when the mounting frame and the storage box run through the four independent wheel sets and pass through a soil pit or steer, one sliding rod and one sliding seat can automatically jack up the side, with the material falling risk, of the storage box, and the material falling probability is reduced.

Description

Technical Field

[0001] This utility model relates to the field of four-wheel chassis technology, specifically to a four-wheel independent steering chassis. Background Technology

[0002] With the increasing trend of large-scale, refined, and efficient agricultural development, agricultural production has placed extremely high demands on the efficiency and precision of material handling. Traditional methods of transporting materials in the field, relying on manpower or simple tools, not only consume a lot of labor costs when facing large-scale planting areas, but also have slow speed and low efficiency, which seriously restricts the overall progress of agricultural production. For example, in large vegetable planting bases, the handling of materials such as fertilizers, pesticides, and harvested vegetables is extremely arduous. Using material handling equipment can improve handling efficiency, reduce labor costs and labor intensity. Among them, four-wheel chassis is a key component of handling equipment.

[0003] Chinese patent CN109760742B discloses a "variable track omnidirectional four-wheel drive mobile chassis," comprising a frame. Steering motors are connected to the four top corners of the frame, and universal drive shafts are connected to the bottom ends of the steering motors. Deformable drive wheel brackets are connected to the four bottom corners of the frame. One end of the universal drive shaft extending from the deformable drive wheel bracket is connected to a fixed drive wheel bracket. Both ends of the bottom of the frame are equipped with positive and negative threaded screw guide rail modules. Slider blocks are symmetrically mounted on the positive and negative threaded screw guide rail modules. A first deformable bracket push-pull rod is hinged between the right slider and the left deformable drive wheel bracket, and a second deformable bracket push-pull rod is hinged between the left slider and the right deformable drive wheel bracket. This patented structure is rationally designed and suitable for various surfaces with high friction, avoiding sliding friction between the drive wheels and the ground during track changes.

[0004] However, the existing technology has the following problems:

[0005] In actual use, existing four-wheel chassis often experience vibrations due to the ruggedness and numerous bends in field roads. This can cause the transported materials to fall off the chassis. Furthermore, the limited turning radius of the four-wheel chassis makes it difficult to navigate tight bends, thus affecting transportation efficiency. Utility Model Content

[0006] The purpose of this utility model is to provide a four-wheel independent steering chassis in order to solve the above problems and overcome the defects of the prior art, as detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A four-wheel independent steering chassis includes a mounting frame, independent wheel sets, and a storage box. The bottom of the mounting frame is provided with four independent wheel sets, and the top of the mounting frame is hinged to the storage box. It also includes a balancing component, which includes two levers. The two levers are rotatably connected to the bottom surface of the mounting frame through brackets.

[0009] Below the balancing assembly is an anti-tilt assembly, which includes a swing rod, a counterweight, a connecting rod, a sliding rod, and a sliding seat. The bottom surface of the mounting frame is hinged to the swing rod, the bottom end of the swing rod is connected to the counterweight, and the two sides of the swing rod are respectively hinged to the connecting rod. Two sliding rods are slidably connected through the mounting frame, and two sliding seats are slidably connected to the bottom of the storage box.

[0010] As one possible implementation, four independent wheel sets are located at the bottom four corners of the mounting frame and connected to the mounting frame via mounting brackets. Each independent wheel set includes a roller, a vibration damping mechanism, and a drive device. An integrated control module is provided inside the mounting frame.

[0011] In one possible implementation, two slide blocks are located at the two ends of the connection between the storage box and the mounting frame, the top ends of the two slide rods are hinged to the two slide blocks respectively, the bottom ends of the two slide rods are hinged to the ends of the two connecting rods away from the swing rod respectively, the two slide rods are mirror images of each other, and multiple springs are provided between the storage box and the mounting frame.

[0012] As one possible implementation, the anti-roll component also includes a connecting component, which includes a side baffle, a first grooved plate, a fork, and a second grooved plate;

[0013] The two ends of the storage box are slidably connected to the side baffles. The bottom of each side baffle is connected to two first groove plates. The two ends of the storage box are respectively connected to the central shaft. The outer wall of the central shaft is rotatably connected to two fork rods. The outer walls of the two ends of the mounting frame are respectively connected to two second groove plates.

[0014] Each fork is symmetrically and intersecting in a scissor-like configuration. The top of each fork is slidably connected to each first slot plate via a bearing wheel, and the bottom of each fork is slidably connected to each second slot plate via a bearing wheel.

[0015] In one possible implementation, each first slot plate is provided with a slide rail, each second slot plate is provided with a first slide rail, the top of each fork is slidably connected to the slide rail of each first slot plate through a bearing wheel, and the bottom of each fork is slidably connected to the first slide rail of each second slot plate through a bearing wheel. The distance from the bottom of the fork to the central axis is less than the distance from the top of the fork to the central axis.

[0016] In one possible implementation, the balancing assembly includes a smooth rod, two balance bars, and a counterweight bar. The smooth rod passes through and connects to the swing rod, and its two ends are connected to the bottom end of each pry bar. The two balance bars pass through the mounting frame and are slidably connected. Each balance bar is placed on top of each pry bar and passes through and connects to a protruding rod. The two ends of the two balance bars are respectively connected to a counterweight bar.

[0017] In one possible implementation, each pry bar has a groove at its top and a first groove at its bottom. The outer wall of the smooth rod is slidably connected to the first groove at the bottom of each pry bar, and the two protruding rods are slidably connected to the grooves at the top of the two pry bars respectively.

[0018] In one possible implementation, the balancing assembly further includes a mounting plate, an outer cover, and two connecting rods. The mounting plate is connected to the outside of the mounting frame via a bracket, and the outer cover is connected to the outside of the mounting plate. The two connecting rods are located on both sides of the mounting frame, and the ends of the two connecting rods away from the balance bar are respectively connected to two slide rail frames. Two rotating shafts are rotatably connected through the mounting plate. The top end of the rotating shaft is connected to a rotating rod, and the top surface of the rotating rod away from the rotating shaft is connected to a roller. Each roller cooperates with each slide rail frame.

[0019] In one possible implementation, the slide frame is provided with a slide groove, two rollers are slidably connected to the slide grooves of the two slide frames respectively, the mounting plate is provided with a long groove, the outer wall of the rotating shaft is connected to a cutter, both cutters are located in the long groove of the mounting plate, and the two cutters are mirror images of each other.

[0020] The beneficial effects are:

[0021] 1. Through the combination of the mounting frame, four independent wheel sets and storage box, simple material transportation is realized. At the same time, it can also turn on the spot and Ackerman turn, which improves flexibility, facilitates driving in the field, and can flexibly pass through various curves.

[0022] 2. By setting up anti-tilt components, when the mounting frame and storage box travel on four independent wheel sets, when passing through a pit or turning, one of the sliding rods and sliding blocks can automatically lift the side of the storage box at risk of material falling, reducing the probability of material falling; by setting up two side baffles, when the storage box tilts, one of the side baffles can automatically rise, further reducing the risk of material being thrown out or falling.

[0023] 3. The balancing components allow the two balance bars and two counterweight bars to move automatically as the mounting frame tilts, adjusting the frame's center of gravity and preventing the frame and storage box from tipping over. The mounting plate and two cutters work together to block weeds, while the cutters cut the weeds by reciprocating, preventing them from obstructing the frame's movement and ensuring smooth movement. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the independent wheel assembly structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the anti-tilt component structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the slide bar structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the side baffle structure of this utility model;

[0030] Figure 6 This is a schematic diagram of the balancing component structure of this utility model;

[0031] Figure 7 This is a schematic diagram of the balance bar structure of this utility model;

[0032] Figure 8 This is a schematic diagram of the outer cover structure of this utility model;

[0033] Figure 9 This is a schematic diagram of the cutting blade structure of this utility model.

[0034] The reference numerals in the attached drawings are explained as follows: 1. Mounting frame; 2. Independent wheel set; 3. Storage box; 4. Anti-tilt assembly; 41. Swing bar; 42. Counterweight; 43. Connecting rod; 44. Slide bar; 45. Slide seat; 46. Side baffle; 47. Central shaft; 48. Fork rod; 49. First slot plate; 410. Second slot plate; 5. Balancing assembly; 51. Pry bar; 52. Smooth bar; 53. Balance bar; 54. Protruding rod; 55. Counterweight bar; 56. Mounting plate; 57. Outer cover; 58. Slide frame; 59. Connecting rod; 510. Rotating shaft; 511. Cutter; 512. Rotating rod; 513. Roller. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] Example 1

[0037] Please see Figure 1 - Figure 2 A four-wheel independent steering chassis includes a mounting frame 1, with four independent wheel sets 2 at the bottom of the mounting frame 1. A storage box 3 is hinged to the top of the mounting frame 1, allowing the storage box 3 to swing left and right to a certain extent at the top of the mounting frame 1. The four independent wheel sets 2 are located at the four bottom corners of the mounting frame 1 and are connected to the mounting frame 1 via brackets. Each independent wheel set 2 includes rollers, a shock absorption mechanism, and a drive device. An integrated control module is installed inside the mounting frame 1, which controls the drive devices of the four independent wheel sets 2, enabling the rollers of the independent wheel sets 2 to roll and steer. The shock absorption mechanism of the independent wheel sets 2... The structure serves to reduce vibration. The four independent wheel sets 2 can roll and steer synchronously, or they can be controlled individually. Through the cooperation of the four independent wheel sets 2, it is possible to turn on the spot and Ackerman turn, which improves the flexibility of movement in the field and makes it easier to travel in fields with narrow and winding roads. The storage box 3 can directly hold some materials, and can also install small equipment, storage mechanisms, etc. Users can directly use the combination of the mounting frame 1, the four independent wheel sets 2 and the storage box 3 to achieve simple material transportation, and at the same time, it can also achieve turn on the spot and Ackerman turn, which improves flexibility and makes it easier to travel in the field.

[0038] It also includes anti-tilt component 4, such as Figures 3-4As shown, to prevent the storage box 3 from tilting excessively and causing its internal materials to fall out, the anti-tilting component 4 includes a swing rod 41, which is hinged to the bottom surface of the mounting frame 1. The bottom end of the swing rod 41 is connected to a counterweight 42, and connecting rods 43 are hinged to both sides of the swing rod 41. Two sliding rods 44 are slidably connected through the mounting frame 1, and two sliding blocks 45 are slidably connected to the bottom of the storage box 3. The two sliding blocks 45 are located at the two ends of the connection between the storage box 3 and the mounting frame 1. The top ends of the two sliding rods 44 are hinged to the two sliding blocks 45, and the bottom ends of the two sliding rods 44 are hinged to the ends of the two connecting rods 43 away from the swing rod 41. 4 is a mirror image setting. Multiple springs are installed between the storage box 3 and the mounting frame 1. These springs provide a certain shock absorption effect. When the mounting frame 1 tilts to the right, the distance between the right bottom surface of the mounting frame 1 and the counterweight 42 is shortened. This causes the counterweight 42 to push the right sliding rod 44 upwards through the right connecting rod 43. The right sliding rod 44 then pushes the right half of the storage box 3 upwards through the right sliding block 45, increasing the distance between the right bottom surface of the storage box 3 and the right bottom surface of the mounting frame 1. As a result, the angle at which the storage box 3 tilts to the right is less than the angle at which the mounting frame 1 tilts to the right, thus reducing the tilt amplitude of the storage box 3.

[0039] When the four independent wheel sets 2 turn, for example, when turning to the left, the mounting frame 1 and the storage box 3 generate rightward inertia. The counterweight 42 drives the swing rod 41 to swing to the right. The right sliding rod 44 and the sliding seat 45 lift the right half of the storage box 3 upward, causing the storage box 3 to tilt to the left, preventing the material inside the storage box 3 from being thrown out due to inertia. Through the setting of the anti-tilt component 4, when the mounting frame 1 and the storage box 3 travel through the four independent wheel sets 2, when passing through a pit or turning, one of the sliding rods 44 and the sliding seat 45 can automatically lift the side of the storage box 3 that is at risk of falling material upward, reducing the probability of material falling.

[0040] Furthermore, such as Figure 5As shown, the two ends of the storage box 3 are slidably connected to side baffles 46, and the bottom of the side baffles 46 is connected to two first groove plates 49. The two ends of the storage box 3 are connected to a central shaft 47, and the outer wall of the central shaft 47 is rotatably connected to two forks 48. The outer walls of the two ends of the mounting frame 1 are connected to two second groove plates 410. The two forks 48 on the central shaft 47 are symmetrically arranged in a scissor-like pattern. The first groove plates 49 and the second groove plates 410 are respectively provided with slide rails. Here, the structure of the slide rails and the first slide rails are not distinguished, and they can be the same structure. The tops of the four forks 48 are slidably connected to the slide rails of the four first groove plates 49 through bearing wheels, and the bottoms of the four forks 48 are slidably connected to the slide rails of the four second groove plates 410 through bearing wheels. The slide rails are connected in a sliding manner. The distance from the bottom of the fork 48 to the central shaft 47 is less than the distance from the top to the central shaft 47. The two forks 48, the central shaft 47, the two first slot plates 49, and the two second slot plates 410 form a scissor lifting mechanism. When the two forks 48 are brought together, they push the side baffles 46 upward through the two first slot plates 49. Since the distance from the bottom of the fork 48 to the central shaft 47 is less than the distance from the top to the central shaft 47, the upward movement distance of the side baffles 46 is greater than the distance between the storage box 3 and the mounting frame 1. By setting the two side baffles 46, when the storage box 3 is tilted, one of the side baffles 46 can automatically rise, further reducing the risk of materials being thrown out or falling.

[0041] In addition, balancing component 5, such as Figures 6-7As shown, the balance assembly 5 is used to improve the balance of the mounting frame 1 when it is in motion. The balance assembly 5 includes two pry bars 51, which are rotatably connected to the bottom surface of the mounting frame 1 via brackets. A smooth rod 52 is connected through the swing rod 41. Two balance bars 53 are slidably connected through the mounting frame 1. A protruding rod 54 is connected through the balance bars 53. A counterweight rod 55 is connected between the two ends of the two balance bars 53. The two balance bars 53 and the two counterweight rods 55 form a quadrilateral balance frame. The bottom and top of the pry bars 51 are respectively provided with grooves. Here, the grooves and the first groove are not distinguished. They can both adopt the same structure. The outer wall of the smooth rod 52 is slidably connected to the grooves at the bottom of the two pry bars 51, and the two protruding rods 54 are slidably connected to the grooves at the top of the two pry bars 51 respectively. When the swing rod 41 swings, it drives the two pry bars 51 to rotate through the smooth rod 52. The rotation center of the pry bar 51 is located between the smooth rod 52 and the protruding rod 54. Therefore, when the pry bar 51 rotates, it can use the lever principle to drive the balance rod 53 to slide in the opposite direction to the swing direction of the swing rod 41 through the protruding rod 54. When the mounting frame 1 tilts to the right or turns to the left, the two balance rods 53 The two counterweight rods 55 slide to the left, thereby shifting the center of gravity of the mounting frame 1 to the left to prevent the mounting frame 1 and the storage box 3 from tipping over. Similarly, when the mounting frame 1 tilts to the left or turns to the right, the two balance rods 53 and the two counterweight rods 55 slide to the right to maintain the balance of the mounting frame 1. Through the setting of the balance component 5, the two balance rods 53 and the two counterweight rods 55 can move automatically with the tilt of the mounting frame 1 to adjust the center of gravity of the mounting frame 1 and prevent the mounting frame 1 and the storage box 3 from tipping over.

[0042] In addition, such as Figure 8As shown, the balancing assembly 5 also includes a mounting plate 56, which is connected to the right side of the mounting frame 1 via a bracket. An outer cover 57 is connected to the right side of the mounting plate 56, serving to conceal weeds. The outer cover 57 is removable. When installed, the outer cover 57 covers the two cutters 511 to prevent accidental injury to the user. After the outer cover 57 is removed, the two cutters 511 are exposed, and the mounting plate 56 then conceals the weeds. Two sliding groove frames 58 are slidably connected to the top surface of the mounting plate 56. Two connecting rods 59 are connected to the outer wall of the right-side balancing rod 53. The two connecting rods 59 are located at the front and rear of the mounting frame 1, respectively. The ends of the two connecting rods 59 furthest from the balancing rod 53 are connected to the two sliding groove frames 58. Two rotating shafts 510 are rotatably connected through the mounting plate 56. The outer wall of the rotating shaft 510 is connected to the cutter 511, and the top of the rotating shaft 510 is connected to a rotating rod 512. The top surface of the rotating rod 512 furthest from the rotating shaft 510 is connected to a roller 51. 3. The chute frame 58 is provided with a chute, and two rollers 513 are slidably connected to the chute of the two chute frames 58 respectively. The mounting plate 56 is provided with a long groove, and the two cutters 511 are located in the long groove of the mounting plate 56. The two cutters 511 are mirror images of each other. When the chute frame 58 moves, the rollers 513 and the rotating rod 512 drive the rotating shaft 510 to rotate, and the rotating shaft 510 drives the cutters 511 to rotate. When the mounting frame 1 travels in the field, as the two balance bars 53 move back and forth, The two cutters 511 also swing back and forth. When the two cutters 511 swing, they can cut the weeds temporarily left on the mounting plate 56, so as to avoid the mounting plate 56 being blocked or attached with too many weeds, which would affect the movement and balance of the mounting frame 1. Through the cooperation of the mounting plate 56 and the two cutters 511, the mounting plate 56 can block the weeds, and the cutters 511 can cut the weeds by swinging back and forth, so as to avoid the weeds from hindering the movement of the mounting frame 1 and ensuring the smooth movement of the mounting frame 1.

[0043] With the above structure, the working principle of this case is as follows: the integrated control module inside the mounting frame 1 can control the drive devices of the four independent wheel sets 2, enabling the rollers of the independent wheel sets 2 to achieve rolling and steering functions. The vibration damping mechanism of the independent wheel sets 2 plays a vibration damping role. The four independent wheel sets 2 can roll and steer synchronously, or they can be controlled to roll and steer individually. Through the cooperation of the four independent wheel sets 2, it is possible to achieve turning on the spot and Ackerman steering, which improves the flexibility of movement in the field and facilitates driving in fields with narrow roads and many bends. The storage box 3 can directly hold some materials, and can also install small equipment, storage mechanisms, etc. Users can directly use the cooperation of the mounting frame 1, the four independent wheel sets 2 and the storage box 3 to achieve simple material transportation, and at the same time, they can also achieve turning on the spot and Ackerman steering, which improves flexibility and facilitates driving in the field.

[0044] The storage box 3 can swing left and right to a certain extent at the top of the mounting frame 1. When the independent wheel set 2 on the right passes through the pit, the mounting frame 1 tilts to the right. Since the weight 42 uses its own weight to keep its position almost unchanged, when the mounting frame 1 tilts to the right, the distance between the right bottom surface of the mounting frame 1 and the weight 42 is shortened. This causes the weight 42 to push the right sliding rod 44 upwards of the mounting frame 1 through the right connecting rod 43. The right sliding rod 44 pushes the right half of the storage box 3 upwards through the right sliding seat 45, increasing the distance between the right bottom surface of the storage box 3 and the right bottom surface of the mounting frame 1. This makes the angle of the storage box 3 tilting to the right less than the angle of the mounting frame 1 tilting to the right, thus reducing the tilting amplitude of the storage box 3 and preventing the materials inside the storage box 3 from falling out due to excessive tilting amplitude.

[0045] When the mounting frame 1 tilts to the left, the left sliding rod 44 lifts the left half of the storage box 3 via the sliding seat 45, providing the same anti-tilt transition function. When the four independent wheel sets 2 turn, for example, when turning to the left, the mounting frame 1 and the storage box 3 generate rightward inertia. The counterweight 42 drives the swing rod 41 to swing to the right, and the right sliding rod 44 and sliding seat 45 lift the right half of the storage box 3 upward, causing the storage box 3 to tilt to the left, preventing the material inside the storage box 3 from being thrown out due to inertia. Taking the storage box 3 tilting to the right as an example, when the storage box 3 tilts to the right, the distance between the left side of the storage box 3 and the left side of the mounting frame 1 increases, and the distance between the central shaft 47 and the two second groove plates 410 at this position increases. This causes the two forks 48 to come together. The two forks 48, the central shaft 47, the two first slot plates 49, and the two second slot plates 410 form a scissor lifting mechanism. When the two forks 48 come together, they push the side baffles 46 upward through the two first slot plates 49. Since the distance from the bottom of the fork 48 to the central shaft 47 is less than the distance from the top to the central shaft 47, the upward movement distance of the side baffles 46 is greater than the distance between the storage box 3 and the mounting frame 1. This ensures that when the left side of the storage box 3 is raised, the side baffles 46 on the left side of the storage box 3 can also be raised, thereby increasing the height of the left side of the storage box 3 and further optimizing the effect of preventing materials from falling out or being thrown off the left side of the storage box 3.

[0046] By setting the anti-tilt component 4, when the mounting frame 1 and the storage box 3 travel through the four independent wheel sets 2, when passing through a pit or turning, one of the sliding rods 44 and the sliding seat 45 can automatically lift the side of the storage box 3 that is at risk of falling materials upward, reducing the probability of materials falling; by setting the two side baffles 46, when the storage box 3 tilts, one of the side baffles 46 can automatically rise, further reducing the risk of materials being thrown out or falling.

[0047] Two balance bars 53 and two counterweight bars 55 form a quadrilateral balance frame. When the mounting frame 1 is not tilted, the two counterweight bars 55 are equidistant from both ends of the mounting frame 1. The two balance bars 53 and the counterweight bars 55 play an auxiliary role in maintaining balance. When the swing arm 41 swings, it drives the two pry bars 51 to rotate through the smooth rod 52. The rotation center of the pry bar 51 is located between the smooth rod 52 and the protruding rod 54. Therefore, when the pry bar 51 rotates, it can use the lever principle to drive the balance bar 53 to slide in the opposite direction to the swing arm 41 through the protruding rod 54. Therefore, when the mounting frame 1 tilts to the right or turns to the left, the two balance bars 53 and the two counterweight bars 55 slide to the left, thereby shifting the center of gravity of the mounting frame 1 to the left and preventing the mounting frame 1 and the storage box 3 from tipping over.

[0048] When the mounting frame 1 tilts to the left or turns to the right, the two balance bars 53 and the two counterweight bars 55 slide to the right to maintain the balance of the mounting frame 1. The outer cover 57 is located in the direction of travel of the mounting frame 1. The outer cover 57 can cover weeds. The outer cover 57 is removable. When the outer cover 57 is installed, it covers the two cutters 511 to prevent the cutters 511 from accidentally injuring the user. After the outer cover 57 is removed, the two cutters 511 are exposed. At this time, the mounting plate 56 plays the role of covering weeds. When the two balance bars 53 move, the right balance bar 53 drives the two slide frames 58 to move synchronously through the two connecting rods 59. When the slide frames 58 move, they drive the rotating shaft 510 to rotate through the roller 513 and the rotating rod 512. The rotating shaft 510 drives the cutter 511 to rotate. Therefore, when the mounting frame 1 is in the direction of travel of the mounting frame 1, the two cutters 511 can be covered by the outer cover 57. When moving in the field, as the two balance bars 53 move back and forth, the two cutters 511 also swing back and forth. When the two cutters 511 swing, they can cut the weeds temporarily attached to the mounting plate 56, preventing the mounting plate 56 from being blocked or attached by too many weeds, which would affect the movement and balance of the mounting frame 1. Through the setting of the balance component 5, the two balance bars 53 and the two counterweight bars 55 can move automatically with the tilt of the mounting frame 1 to adjust the center of gravity of the mounting frame 1 and prevent the mounting frame 1 and the storage box 3 from tipping over. Through the cooperation of the mounting plate 56 and the two cutters 511, the mounting plate 56 can block the weeds, and the cutters 511 can cut the weeds by swinging back and forth, preventing the weeds from obstructing the movement of the mounting frame 1 and ensuring the smooth movement of the mounting frame 1.

[0049] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A four-wheel independent steering chassis, comprising a mounting frame, independent wheel sets, and a storage box, wherein the bottom of the mounting frame is provided with four independent wheel sets, and the top of the mounting frame is hinged to the storage box, characterized in that: It also includes a balancing assembly, which consists of two levers, each of which is rotatably connected to the bottom surface of the mounting frame via a bracket; Below the balancing assembly is an anti-tilt assembly, which includes a swing rod, a counterweight, a connecting rod, a sliding rod, and a sliding seat. The bottom surface of the mounting frame is hinged to the swing rod, the bottom end of the swing rod is connected to the counterweight, and the two sides of the swing rod are respectively hinged to the connecting rod. Two sliding rods are slidably connected through the mounting frame, and two sliding seats are slidably connected to the bottom of the storage box.

2. A four-wheel independent steering chassis according to claim 1, characterized in that: Four independent wheel sets are located at the bottom four corners of the mounting frame and are connected to the mounting frame via mounting brackets. Each independent wheel set includes a roller, a vibration damping mechanism, and a drive device. An integrated control module is located inside the mounting frame.

3. A four-wheel independent steering chassis according to claim 2, characterized in that: Two slide blocks are located at the two ends of the connection between the storage box and the mounting frame. The top ends of the two slide rods are hinged to the two slide blocks respectively, and the bottom ends of the two slide rods are hinged to the ends of the two connecting rods away from the swing rod respectively. The two slide rods are mirror images of each other. Multiple springs are provided between the storage box and the mounting frame.

4. A four-wheel independent steering chassis according to claim 1 or 3, characterized in that: The anti-roll component also includes a connecting component, which includes a side baffle, a first grooved plate, a fork, and a second grooved plate. The two ends of the storage box are slidably connected to the side baffles. The bottom of each side baffle is connected to two first groove plates. The two ends of the storage box are respectively connected to the central shaft. The outer wall of the central shaft is rotatably connected to two fork rods. The outer walls of the two ends of the mounting frame are respectively connected to two second groove plates. Each fork is symmetrically crossed in a scissor-like configuration. The top of each fork is slidably connected to each first slot plate via a bearing wheel, and the bottom of each fork is slidably connected to each second slot plate via a bearing wheel.

5. A four-wheel independent steering chassis according to claim 4, characterised in that: Each first slot plate is provided with a slide rail, each second slot plate is provided with a first slide rail, the top of each fork is slidably connected to the slide rail of each first slot plate through a bearing wheel, and the bottom of each fork is slidably connected to the first slide rail of each second slot plate through a bearing wheel. The distance from the bottom of the fork to the central axis is less than the distance from the top of the fork to the central axis.

6. A four-wheel independent steering chassis according to claim 1, characterized in that: The balancing assembly includes a smooth rod, two balance bars, and a counterweight bar. The smooth rod passes through and connects to the swing arm, and its two ends are connected to the bottom of each pry bar. The two balance bars pass through the mounting frame and are slidably connected. Each balance bar is placed on top of each pry bar and passes through and connects to a protruding rod. The two ends of the two balance bars are respectively connected to the counterweight bar.

7. A four-wheel independent steering chassis according to claim 6, characterised in that: Each pry bar has a groove at the top and a first groove at the bottom. The outer wall of the smooth rod is slidably connected to the first groove at the bottom of each pry bar, and the two protruding rods are slidably connected to the grooves at the top of the two pry bars respectively.

8. A four-wheel independent steering chassis according to claim 1 or 7, characterized in that: The balancing assembly also includes a mounting plate, an outer cover, and two connecting rods. The mounting plate is connected to the outside of the mounting frame via a bracket. The outer cover is connected to the outside of the mounting plate. The two connecting rods are located on both sides of the mounting frame, and the ends of the two connecting rods away from the balance bar are respectively connected to two slide rail frames. Two rotating shafts are rotatably connected through the mounting plate. The top of the rotating shaft is connected to a rotating rod, and the top surface of the rotating rod away from the rotating shaft is connected to a roller. Each roller cooperates with each slide rail frame.

9. A four-wheel independent steering chassis according to claim 8, characterised in that: The slide rail frame is provided with a slide rail, and two rollers are slidably connected to the slide rails of the two slide rail frames respectively. The mounting plate is provided with a long groove, and the outer wall of the rotating shaft is connected to a cutter. Both cutters are located in the long groove of the mounting plate, and the two cutters are mirror images of each other.

Images