A front and rear four-track independent control steering mechanism

Abstract

The application discloses a front and rear four-track independent control steering mechanism and relates to the technical field of engineering transport equipment. The front and rear four-track independent control steering mechanism comprises a middle-sunken chassis frame assembly, track walking parts are arranged on the lower sides of the two ends of the chassis frame assembly, a motor is fixedly connected to the upper side of one end of the chassis frame assembly, the track walking parts comprise track installation platforms, track structural members are fixedly connected to the two sides of the track installation platforms, a left track in the shape of a Chinese character is sleeved on the outer side of the track structural member on the left side, a right track in the shape of a Chinese character is sleeved on the outer side of the track structural member on the right side, the left track and the right track are parallel, a walking motor for providing power for the left track and the right track is installed on each track structural member, and a track fixing pin is installed on each track structural member. The front and rear four-track independent control steering mechanism reduces the requirement for surrounding space and is suitable for operation in a narrow area.

Description

Technical Field

[0001] This invention relates to the field of engineering transportation equipment technology, specifically to a steering mechanism with independent control of the front and rear four tracks. Background Technology

[0002] The tracked steering mechanism is a type of tracked travel mechanism for tracked unit support transport vehicles. This mechanism can withstand heavy machine weight, has strong climbing ability, low ground pressure, and stable movement. It can adapt to steep slopes and turns, allowing the vehicle to operate more freely in confined spaces, and has been widely used in the construction machinery field. Common tracked travel mechanisms include dual-track and quad-track mechanisms. Dual-track mechanisms are mainly used in excavators, bulldozers, pavers, and rotary drilling rigs, while quad-track mechanisms are mainly used in road milling machines and slipform pavers, and are also used in some agricultural machinery.

[0003] Traditional tracked vehicles typically employ a differential steering mechanism, which involves changing the speed of the tracks on either side to achieve steering. While this method can meet basic needs in most cases, it may prove insufficient in certain specialized situations (such as those requiring very small turning radii or precise positioning). Summary of the Invention

[0004] The purpose of this invention is to provide an independent control steering mechanism for the front and rear four tracks to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a four-track independent control steering mechanism, comprising a chassis frame assembly with a centrally recessed section, track traveling components respectively disposed on the lower sides of both ends of the chassis frame assembly, a motor fixedly connected to the upper side of one end of the chassis frame assembly, the track traveling component comprising a track mounting platform, track structural members fixedly connected to both sides of the track mounting platform, a left track in a straight line sleeved on the outer side of the left track structural member, a right track in a straight line sleeved on the outer side of the right track structural member, the left and right tracks being parallel, a traveling motor for providing power to the left and right tracks being mounted on each track structural member, a track fixing pin being mounted on each track structural member, and a rotary drive fixedly connected to the upper side of the track mounting platform.

[0006] As a preferred embodiment of the present invention, the chassis frame assembly includes a disc-shaped cargo plate component and L-shaped side frame components symmetrically arranged on both sides thereon.

[0007] The pallet component includes a pallet, the inner edge of which is provided with an annular first groove, the four sides of which are recessed inward with first slots, the four sides of which are provided with positioning grooves extending outward, the upper middle part of which is provided with a second groove, the four sides of which are recessed inward with second slots.

[0008] As a preferred embodiment of the present invention, a support plate component is provided above the cargo plate component. The support plate component includes a support plate that is fixedly connected to the cargo plate. The upper surface of the support plate has grooves on opposite edges, and each groove is fitted with an L-shaped guard plate.

[0009] As a preferred technical solution of the present invention, a rotating component is provided below the cargo plate component. The rotating component includes a first air chamber fixedly connected to the cargo plate. An air pump is fixedly connected to the middle of the lower surface of the first air chamber. Cylinders are fixedly connected to both sides of the lower surface of the first air chamber. A foot pad is fixedly connected to the output end of the cylinder.

[0010] The outer edge of the lower surface of the first air chamber is movably connected to a ring-shaped second air chamber via a bearing, and air pipes are fixedly connected to opposite sides of the ring of the second air chamber.

[0011] The second air chamber is symmetrically provided with elastic rod assemblies on both sides. Each elastic rod assembly includes a sleeve that passes through and is fixed to the second air chamber. An inner cylinder is adapted to be inserted into the outer end of the sleeve. A first spring is fixedly connected between the inner cylinder and the sleeve. A connecting block is fixedly connected to the outer end of the sleeve. The end of the air pipe away from the second air chamber is connected to the sleeve.

[0012] As a preferred embodiment of the present invention, a connecting component is provided between the pallet component and the side frame component. The connecting component includes a connecting plate, and a groove for fitting the nested pallet is provided on one side of the connecting plate.

[0013] A slider assembly is provided in the groove. The slider assembly includes a column adapted to be inserted into the second slide groove and the second slot. The upper end of the column passes through the fixed connection plate. The lower end of the column is fixedly connected to a slider adapted to be inserted into the first slide groove and the first slot. A slot is provided in the middle of one side of the slider. A positioning block adapted to be inserted into the positioning groove is inserted into the slot. A second spring is fixedly connected between the positioning block and the slot.

[0014] A baffle assembly is provided on the upper side of the connecting plate. The baffle assembly includes a movable groove formed on the upper surface of the connecting plate and an L-shaped upright plate that fits the upper surface of the connecting plate. A groove block adapted to insert into the movable groove is fixedly connected to the lower surface of the upright plate. A third spring is fixedly connected between the groove block and the movable groove. A cover cloth corresponding to cover the upper port of the movable groove is fixedly connected to the upper side of the third spring.

[0015] The connecting block is fixedly connected to the lower surface of the connecting plate.

[0016] As a preferred embodiment of the present invention, the side frame component includes a side frame with a fixedly connected connecting plate. A first corrugated plate is fixedly embedded in the upper inner wall of the side frame. The lower surface of the first corrugated plate is corrugated. U-shaped hook plates are symmetrically fixed to both sides of the first corrugated plate. A panel is fixed to the outer ends of the first corrugated plate and the hook plates.

[0017] As a preferred embodiment of the present invention, a connecting shaft component is provided below the side frame component, and the tracked walking component is connected to the side frame component through the connecting shaft component;

[0018] The connecting shaft component includes a second corrugated plate adapted to the first corrugated plate. The upper surface of the second corrugated plate is corrugated. A pad between the two hook plates is fixedly connected to the middle of the lower surface of the second corrugated plate. A connecting shaft is fixedly connected to the middle of the lower surface of the pad. The lower end of the connecting shaft is fixedly connected to the rotary drive of the track walking component.

[0019] The lower surface of the second corrugated plate is fixedly connected to two clamping plates that are adapted to plug-in hook plates on both sides.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] (1) A front and rear four-track independent control steering mechanism, which controls the rotation amplitude of the rotary motor through a hydraulic system, so that the front and rear track walking parts of the chassis frame assembly can rotate independently at a certain angle. This allows the vehicle to achieve a smaller radius turn in a very small space, reducing the need for surrounding space, making it suitable for operation in narrow areas and increasing the scope of use.

[0022] (2) A front and rear four-track independent control steering mechanism with multiple steering modes, which improves the vehicle's operational flexibility in complex environments and enhances the vehicle's stability and handling.

[0023] (3) A four-track independent control steering mechanism, wherein when the left and right tracks on the same track travel component rotate in opposite directions under the drive of a hydraulic motor, the track can assist in the rotation drive deflection, thereby increasing the steering speed of the track travel component and improving the steering efficiency.

[0024] (4) A front and rear four-track independent control steering mechanism, which moves the track walking component toward the tangential direction of the cargo plate component by deflecting the track walking component, can rotate the connecting components and side frame components on both sides of the cargo plate component by 90 degrees, so that the upright plate and guard plate of the connecting component form a barrier for the cargo on the bearing plate, thereby improving the protection capability of the cargo during the transport of the cargo.

[0025] (5) A steering mechanism with independent control of front and rear four tracks, the foot pads are in contact with the ground to increase the stability of the cargo plate component, making the orientation conversion of the connecting component and the side frame component more flexible. When the spring rod assembly returns to its original position, the cylinder also draws air synchronously, so that the foot pads retract into the second air chamber, improving the automation performance of use.

[0026] (6) A front and rear four-track independent control steering mechanism, by setting the positioning block of the slider assembly, after the connecting part and the side frame part rotate 90 degrees, the positioning block is aligned with the positioning groove again, thereby making the rotation of the connecting part and the side frame part stop, so as to better identify the rotation direction and improve the steering accuracy.

[0027] (7) A front and rear four-track independent control steering mechanism, in the state of adjusting the angle of the connecting component and the side frame component, the cylinder extends so that the foot pad is supported on the ground. At this time, the retraction of the connecting shaft can release the track walking component from the support state, so that the connecting shaft component is hooked on the side frame component. At this time, the second corrugated plate and the first corrugated plate are separated. At this time, the track walking component is started to move, so that the track walking component and the connecting shaft component can slide independently along the hook plate, thereby adjusting the distance between the two track walking components and improving the adjustability. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the tracked walking component of the present invention;

[0030] Figure 3 This is a schematic diagram of the chassis frame assembly of the present invention;

[0031] Figure 4 This is a bottom view of the chassis frame assembly of the present invention;

[0032] Figure 5 This is a schematic diagram of the cargo pallet component of the present invention;

[0033] Figure 6 This is a schematic diagram of the interior of the cargo plate component of the present invention;

[0034] Figure 7 This is a schematic diagram of the bearing plate component of the present invention;

[0035] Figure 8 This is a schematic diagram of the rotating component of the present invention;

[0036] Figure 9 This is a schematic diagram of the connecting components of the present invention;

[0037] Figure 10 This is a schematic diagram of the internal structure of the connecting component of the present invention;

[0038] Figure 11 This is a schematic diagram of the first position of the slider assembly of the present invention;

[0039] Figure 12 This is a schematic diagram of the second position of the slider assembly of the present invention;

[0040] Figure 13 This is a schematic diagram of the connection of the side frame components of the present invention;

[0041] Figure 14 This is a schematic diagram of the side frame component of the present invention;

[0042] Figure 15 This is a schematic diagram of the connection plane of the side frame component of the present invention;

[0043] Figure 16 This is a schematic diagram of the connecting shaft component of the present invention;

[0044] Figure 17 This is a schematic diagram of the second corrugated plate connection of the present invention.

[0045] In the diagram: 1. Tracked walking components; 101. Track mounting platform; 102. Track structural components; 103. Left track; 104. Right track; 105. Travel motor; 106. Track fixing pin; 107. Rotation drive; 2. Motor; 3. Cargo plate components; 301. Cargo plate; 302. First chute; 303. First slot; 304. Positioning slot; 305. Second chute; 306. Second slot; 4. Support plate components; 401. Support plate; 402. Plate groove; 403. Guard plate; 5. Rotating components; 501. First air chamber; 502. Air pump; 503. Cylinder; 504. Foot pads; 505. Second air chamber; 506. Air tube; 507. Sleeve; 508. Inner cylinder; 509. First spring; 510. Connecting block; 6. Connecting component; 601. Connecting plate; 602. Groove; 603. Column; 604. Slider; 605. Slot; 606. Positioning block; 607. Second spring; 608. Moving groove; 609. Upright plate; 610. Groove block; 611. Third spring; 612. Cover cloth; 7. Side frame component; 701. Side frame; 702. First corrugated plate; 703. Hook plate; 704. Panel; 8. Connecting shaft component; 801. Second corrugated plate; 802. Pad plate; 803. Connecting shaft; 804. Clamping plate. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Example: Please refer to Figure 1 , Figure 2 A four-track independent control steering mechanism includes a chassis frame assembly with a centrally recessed section. Tracked walking components 1 are respectively installed on the lower sides of both ends of the chassis frame assembly. A motor 2 is fixedly connected to the upper side of one end of the chassis frame assembly. This four-track independent control steering mechanism can withstand a large machine weight, has strong climbing ability, low ground pressure, and stable movement. It can adapt to steep slope driving and turning. The tracked walking components 1 include a track mounting platform 101, and track structural components 1 are fixedly connected to both sides of the track mounting platform 101. 02, a straight left track 103 is sleeved on the outside of the left track structure 102, and a straight right track 104 is sleeved on the outside of the right track structure 102. The left track 103 and the right track 104 are parallel. Each track structure 102 is equipped with a travel motor 105 for providing power to the left track 103 and the right track 104. Each track structure 102 is equipped with a track fixing pin 106. A rotary drive 107 is fixedly connected to the upper side of the track mounting platform 101.

[0048] Each tracked traveling component 1 is designed with a parallel left track 103 and a right track 104. The left track 103 and the right track 104 are powered by hydraulic motors and driven by a reducer to move the vehicle (the reducer adopts the internationally popular built-in traveling reducer, and the transmission component is a built-in hydraulic motor, whose main features are compact structure, small space occupation, light weight, large transmission ratio, high starting efficiency and low operating noise).

[0049] The track plates of track structure component 102 are three-tooth type, which have good rigidity and toughness, and improve grip and rigidity;

[0050] The track structure component 102 uses floating seal technology for its track rollers, which ensures smooth and reliable operation and saves time and effort in maintenance.

[0051] The slewing drive 107 is driven by a slewing motor and gear transmission. The rotation amplitude of the slewing motor is controlled by a hydraulic system, so that the tracked walking component 1 rotates around a certain angle, thereby adjusting the direction of the left track 103 and the right track 104.

[0052] After the two sets of tracked walking components 1 are connected to the chassis frame assembly, the vehicle can move forward, backward and turn.

[0053] This independent steering mechanism for the front and rear four tracks independently controls the steering angle and drive speed of the four tracks. Combined with the synergistic effect of the hydraulic system and mechanical structure, it enables flexible steering, lateral movement, and even rotation in confined spaces.

[0054] Please see Figure 3 , Figure 5 , Figure 6 The chassis frame assembly includes a disc-shaped cargo plate component 3 and L-shaped side frame components 7 symmetrically arranged on both sides thereon.

[0055] The pallet component 3 includes a pallet 301. An annular first groove 302 is formed on the inner edge of the pallet 301. First slots 303 are recessed inward on the four sides of the first groove 302. Positioning grooves 304 are formed through the four sides of the first groove 302. A second groove 305 is formed through the upper middle part of the first groove 302. The width of the second groove 305 is smaller than the width of the first groove 302. Second slots 306 are recessed inward on the four sides of the second groove 305.

[0056] Please see Figure 3 , Figure 7 Above the cargo plate component 3, a support plate component 4 is provided. The support plate component 4 includes a support plate 401 that is fixedly connected to the cargo plate 301. The upper surface of the support plate 401 has grooves 402 on opposite sides. Each groove 402 is fitted with an L-shaped guard plate 403.

[0057] Please see Figure 4 , Figure 8 A rotating component 5 is provided below the cargo plate component 3. The rotating component 5 includes a first air chamber 501 fixedly connected to the cargo plate 301. An air pump 502 is fixedly connected to the middle of the lower surface of the first air chamber 501. Cylinders 503 are fixedly connected to both sides of the lower surface of the first air chamber 501 respectively. A foot pad 504 is fixedly connected to the output end of the cylinder 503.

[0058] The outer edge of the lower surface of the first air chamber 501 is movably connected to a ring-shaped second air chamber 505 via a bearing, and air pipes 506 are fixedly connected to opposite sides of the ring of the second air chamber 505.

[0059] On both sides of the second air chamber 505, elastic rod assemblies are symmetrically arranged. Each elastic rod assembly includes a sleeve 507 that passes through and is fixed to the second air chamber 505. An inner cylinder 508 is adapted to be inserted into the outer end of the sleeve 507. A first spring 509 is fixedly connected between the inner cylinder 508 and the sleeve 507. A connecting block 510 is fixedly connected to the outer end of the sleeve 507. The end of the air pipe 506 away from the second air chamber 505 is connected to the sleeve 507.

[0060] The second air chamber 505 surrounds the air pump 502 and the cylinder 503, and the height of the second air chamber 505 is greater than the height of the air pump 502.

[0061] Please see Figure 3 , Figure 4 , Figure 9 , Figure 10 , Figure 11 , Figure 12 A connecting component 6 is provided between the pallet component 3 and the side frame component 7. The connecting component 6 includes a connecting plate 601, and a groove 602 adapted to the nested pallet 301 is provided on one side of the connecting plate 601.

[0062] A slider assembly is provided in the groove 602. The slider assembly includes a column 603 adapted to be inserted into the second groove 305 and the second slot 306. The upper end of the column 603 is connected to the connecting plate 601 through it. The lower end of the column 603 is fixedly connected to a slider 604 adapted to be inserted into the first groove 302 and the first slot 303. A slot 605 is provided in the middle of one side of the slider 604. A positioning block 606 adapted to be inserted into the positioning groove 304 is inserted into the slot 605. A second spring 607 is fixedly connected between the positioning block 606 and the slot 605.

[0063] A baffle assembly is provided on the upper side of the connecting plate 601. The baffle assembly includes a movable groove 608 formed on the upper surface of the connecting plate 601 and an L-shaped upright plate 609 that fits the upper surface of the connecting plate 601. A groove block 610 adapted to insert into the movable groove 608 is fixedly connected to the lower surface of the upright plate 609. A third spring 611 is fixedly connected between the groove block 610 and the movable groove 608. A cover cloth 612 corresponding to cover the upper port of the movable groove 608 is fixedly connected to the upper side of the third spring 611.

[0064] Initially, the slider 604 of the slider assembly is adapted to be inserted into the first slot 303, the connecting plate 601 is attached to the support plate 401, and the upright plate 609 is attached to the guard plate 403.

[0065] The connecting block 510 is fixedly connected to the middle of the lower surface of the connecting plate 601.

[0066] Please see Figure 3 , Figure 4 , Figure 14 , Figure 15 , Figure 17 The side frame component 7 includes a side frame 701 that is fixedly connected to the connecting plate 601. A first corrugated plate 702 is fixedly embedded in the upper inner wall of the side frame 701. The lower surface of the first corrugated plate 702 is corrugated. U-shaped hook plates 703 are symmetrically fixed to both sides of the first corrugated plate 702. A panel 704 is fixed to the outer ends of the first corrugated plate 702 and the hook plates 703.

[0067] Please see Figure 13 , Figure 15 , Figure 16 , Figure 17 A connecting shaft component 8 is provided below the side frame component 7, and the tracked traveling component 1 is connected to the side frame component 7 through the connecting shaft component 8;

[0068] The connecting shaft component 8 includes a second corrugated plate 801 adapted to the first corrugated plate 702. The upper surface of the second corrugated plate 801 is corrugated. A pad 802 located between two hook plates 703 is fixedly connected to the middle of the lower surface of the second corrugated plate 801. A connecting shaft 803 is fixedly connected to the middle of the lower surface of the pad 802. The lower end of the connecting shaft 803 is fixedly connected to the rotary drive 107 of the track walking component 1.

[0069] The lower surface of the second corrugated plate 801 is fixedly connected to the two sides of the adapter plug hook plate 703.

[0070] Initially, the connecting shaft 803 extends, and the first corrugated plate 702 and the second corrugated plate 801 are fitted together.

[0071] The working principle of this invention is as follows:

[0072] The rotary drive 107 of the track travel component 1 of the independent control steering mechanism for the front and rear four tracks is driven by a rotary motor and gear transmission. The rotation amplitude of the rotary motor is controlled by a hydraulic system, so that the front and rear track travel components 1 of the chassis frame assembly can rotate independently at a certain angle. This allows the vehicle to achieve a smaller radius of turn in a very small space, reducing the need for surrounding space, making it suitable for operation in narrow areas and increasing the range of use.

[0073] This four-track independent steering mechanism has multiple steering modes. In normal steering, the rotary drive 107 drives the front track travel component 1 to deflect, similar to the steering method of a traditional car, for normal vehicle operation. In crab-like steering, the rotary drive 107 drives the track travel component 1 to deflect, causing the front and rear track travel components 1 of the chassis frame assembly to deflect in parallel in the same direction, allowing the vehicle to move laterally like a crab. In reverse steering, the rotary drive 107 drives the track travel component 1 to deflect, causing the front and rear track travel components 1 of the chassis frame assembly to deflect in opposite directions, thereby reducing the turning radius and allowing the vehicle to rotate almost in place. This improves the vehicle's operational flexibility in complex environments and enhances its stability and handling.

[0074] Each tracked traveling component 1 is designed with a parallel left track 103 and a right track 104. The tracked traveling component 1 is deflected by a rotary drive 107. The left track 103 and the right track 104 are powered by hydraulic motors. When the left track 103 and the right track 104 on the same tracked traveling component 1 rotate in opposite directions under the drive of the hydraulic motor, they can assist the rotary drive 107 in deflection, thereby increasing the turning speed of the tracked traveling component 1 and improving the turning efficiency.

[0075] The bearing plate 401 carries goods. When the transportation road conditions are bumpy, the air pump 502 is started to inject air into the first air chamber 501. The air is then introduced into the sleeve 507 through the second air chamber 505 and the air pipe 506, which pushes the connecting parts 6 on both sides outward. The slider assembly of the connecting part 6 moves out of the first slot 303 and into the first slide groove 302, thereby releasing the locking state of the slider assembly. By deflecting the track walking part 1, it moves towards the tangential direction of the cargo plate part 3, which can rotate the connecting parts 6 and the side frame parts 7 on both sides of the cargo plate part 3 by ninety degrees. This allows the upright plate 609 and the guard plate 403 of the connecting part 6 to form a barrier for the goods on the bearing plate 401, improving the protection of the goods during transportation.

[0076] When the air pump 502 inflates the spring rod assembly, part of the air injected into the first air chamber 501 is introduced into the cylinder 503, causing the cylinder 503 to extend. The foot pad 504 is placed on the ground to increase the stability of the cargo plate component 3, making the orientation of the connecting component 6 and the side frame component 7 more flexible. When the spring rod assembly returns to its original position, the cylinder 503 also simultaneously de-inflates, causing the foot pad 504 to retract into the second air chamber 505, improving the automation performance.

[0077] By setting the positioning block 606 of the slider assembly, after the connecting part 6 and the side frame part 7 rotate 90 degrees, the positioning block 606 is aligned with the positioning groove 304 again, thereby causing the rotation of the connecting part 6 and the side frame part 7 to stop, thus enabling better identification of the rotation direction and improving steering accuracy.

[0078] Under normal conditions, the tracked walking component 1 supports the ground, the side frame component 7 is pressed against the connecting shaft component 8, and the second corrugated plate 801 and the first corrugated plate 702 are tightly engaged, thus securing the tracked walking component 1. When adjusting the angle of the connecting component 6 and the side frame component 7, the cylinder 503 extends, causing the foot pad 504 to contact the ground for support. Retracting the connecting shaft 803 releases the tracked walking component 1 from its supported state, allowing the connecting shaft component 8 to engage with the side frame component 7. At this point, the second corrugated plate 801 and the first corrugated plate 702 separate. Initiating movement of the tracked walking component 1 allows it to slide independently along the hook plate 703, thereby adjusting the distance between the two tracked walking components 1 and improving adjustability. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A four-track independent control steering mechanism, comprising a chassis frame assembly with a centrally recessed section, wherein track walking components (1) are respectively provided on the lower sides of both ends of the chassis frame assembly, and a motor (2) is fixedly connected to the upper side of one end of the chassis frame assembly, characterized in that: The tracked walking component (1) includes a track mounting platform (101). Tracked structural members (102) are fixedly connected to both sides of the track mounting platform (101). A left track (103) in a straight line is sleeved on the outside of the tracked structural member (102) on the left side, and a right track (104) in a straight line is sleeved on the outside of the tracked structural member (102) on the right side. The left track (103) and the right track (104) are parallel. Each tracked structural member (102) is equipped with a walking motor (105) for providing power to the left track (103) and the right track (104). Each tracked structural member (102) is equipped with a track fixing pin (106). A rotary drive (107) is fixedly connected to the upper side of the track mounting platform (101). The chassis frame assembly includes a disc-shaped cargo plate component (3) and L-shaped side frame components (7) symmetrically arranged on both sides thereon. The cargo plate component (3) includes a cargo plate (301), an annular first groove (302) is provided on the inner edge of the cargo plate (301), a first slot (303) is recessed inward on the four sides of the first groove (302), a positioning groove (304) is provided through the four sides of the first groove (302), a second groove (305) is provided through the upper middle part of the first groove (302), and a second slot (306) is recessed inward on the four sides of the second groove (305). A support plate component (4) is provided above the cargo plate component (3). The support plate component (4) includes a support plate (401) that is fixedly connected to the cargo plate (301). The upper surface of the support plate (401) has a plate groove (402) on each side edge. Each side of the plate groove (402) is fitted with an L-shaped guard plate (403). A rotating component (5) is provided below the cargo plate component (3). The rotating component (5) includes a first air chamber (501) fixedly connected to the cargo plate (301). An air pump (502) is fixedly connected to the middle of the lower surface of the first air chamber (501). Cylinders (503) are fixedly connected to both sides of the lower surface of the first air chamber (501). A foot pad (504) is fixedly connected to the output end of the cylinder (503). The outer edge of the lower surface of the first air chamber (501) is movably connected to a ring-shaped second air chamber (505) via a bearing, and air pipes (506) are fixedly connected to opposite sides of the ring of the second air chamber (505). The second air chamber (505) is symmetrically provided with elastic rod assemblies on both sides. Each elastic rod assembly includes a sleeve (507) that passes through and is fixed to the second air chamber (505). An inner cylinder (508) is adapted to be inserted into the outer end of the sleeve (507). A first spring (509) is fixedly connected between the inner cylinder (508) and the sleeve (507). A connecting block (510) is fixedly connected to the outer end of the sleeve (507). The end of the air pipe (506) away from the second air chamber (505) is connected to the sleeve (507). A connecting component (6) is provided between the pallet component (3) and the side frame component (7). The connecting component (6) includes a connecting plate (601), and a groove (602) for adapting to the nested pallet (301) is provided on one side of the connecting plate (601). A slider assembly is provided in the groove (602). The slider assembly includes a column (603) adapted to be inserted into the second groove (305) and the second slot (306). The upper end of the column (603) passes through the fixed connecting plate (601). The lower end of the column (603) is fixedly connected to a slider (604) adapted to be inserted into the first groove (302) and the first slot (303). A slot (605) is provided in the middle of one side of the slider (604). A positioning block (606) adapted to be inserted into the positioning groove (304) is inserted into the slot (605). A second spring (607) is fixedly connected between the positioning block (606) and the slot (605). A baffle assembly is provided on the upper side of the connecting plate (601). The baffle assembly includes a movable groove (608) opened on the upper surface of the connecting plate (601) and an L-shaped upright plate (609) attached to the upper surface of the connecting plate (601). A groove block (610) adapted to insert into the movable groove (608) is fixedly connected to the lower surface of the upright plate (609). A third spring (611) is fixedly connected between the groove block (610) and the movable groove (608). A cover cloth (612) corresponding to cover the upper port of the movable groove (608) is fixedly connected to the upper side of the third spring (611). The connecting block (510) is fixedly connected to the middle of the lower surface of the connecting plate (601).

2. The independent control steering mechanism for four tracks as described in claim 1, characterized in that: The side frame component (7) includes a side frame (701) that is fixedly connected to the connecting plate (601). A first corrugated plate (702) is fixedly embedded in the upper inner wall of the side frame (701). The lower surface of the first corrugated plate (702) is corrugated. U-shaped hook plates (703) are symmetrically fixed to both sides of the first corrugated plate (702). A panel (704) is fixed to the outer ends of the first corrugated plate (702) and the hook plates (703).

3. The independent control steering mechanism for four tracks as described in claim 2, characterized in that: A connecting shaft component (8) is provided below the side frame component (7), and the track walking component (1) is connected to the side frame component (7) through the connecting shaft component (8); The connecting shaft component (8) includes a second corrugated plate (801) adapted to the first corrugated plate (702). The upper surface of the second corrugated plate (801) is corrugated. A pad (802) located between the two hook plates (703) is fixedly connected to the middle of the lower surface of the second corrugated plate (801). A connecting shaft (803) is fixedly connected to the middle of the lower surface of the pad (802). The lower end of the connecting shaft (803) is fixedly connected to the rotary drive (107) of the track walking component (1). The lower surface of the second corrugated plate (801) is fixedly connected to the two sides of the card plate (804) that is adapted to the plug-in hook plate (703).

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