Field self-adaptive intelligent chassis

By designing the site adaptive intelligent chassis and using adjustment mechanisms and shock absorbing mechanisms, the problems of low efficiency and poor stability of traditional chassis in complex terrain are solved, the ability to efficiently drive and overcome obstacles is achieved, and task execution efficiency and safety are improved.

CN120116651APending Publication Date: 2025-06-10YANCHENG INST OF TECH
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Patent Information

Application Number
CN202510318933.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2025-06-10

AI Technical Summary

Technical Problem

Traditional crawler chassis has high cost, low efficiency and high noise, while wheeled chassis is limited in stability and passability under complex terrain, and has a single movement method, making it difficult to effectively adapt to terrain changes, affecting task execution efficiency and safety.

Method used

A site adaptive intelligent chassis is designed, and through the setting of adjustment mechanisms and shock absorption mechanisms, it can achieve flexible response and efficient obstacle-surveillance capabilities to complex terrain. The adjustment mechanism includes a transmission assembly and an adjustment assembly. Through the cooperation of gears and motors, the arc-shaped block can be expanded or closed to adapt to different terrain; the shock absorbing mechanism absorbs the impact force of the ground through sliding grooves and spring damping rod assembly to maintain the stability of the chassis.

Benefits of technology

The ability to efficiently drive and override obstacles under complex terrain is achieved, the task execution efficiency and safety is improved, and the chassis is not stable or damaged due to terrain changes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of intelligent chassis, and discloses a site self-adaptive intelligent chassis which comprises a first chassis plate, a rotating rod is rotatably mounted at the bottom of the first chassis plate, two second chassis plates fixedly sleeve the outer wall of the rotating rod, and two adjusting mechanisms are arranged on the outer walls of the two second chassis plates respectively. The adjusting mechanism comprises a transmission assembly and an adjusting assembly, the adjusting assembly comprises a driving rod rotationally installed at the bottom of the second chassis plate, and by arranging the adjusting mechanism, when a step is encountered, a first motor is started, a second motor and a fourth gear are driven to proper positions through meshing of a third gear and a rack, and the second motor and the fourth gear are successfully meshed with a first gear; the first gear and the driving rod are driven to rotate through starting of the second motor, four arc-shaped blocks are driven to be unfolded through interaction of the second gear and a second tooth groove, the first tooth groove and the shaft sleeve piece are driven to rotate through reverse rotation of the first motor and restarting of the second motor, and the device smoothly climbs the step.
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Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent chassis, and specifically relates to a site-adaptive intelligent chassis. Background Art

[0002] With the increasing expansion of market demand, mobile robots have shown broad application prospects and huge market potential in multiple fields. Whether it is for reconnaissance and patrol in the military field, improving the mining efficiency in ore exploration, or in civilian services, security inspections and other scenarios, mobile robots play an irreplaceable role. For example, they can be used as inspection robots in high-risk areas such as transformer substations and chemical plants to ensure the safe operation of these places; in the event of natural disasters such as fires and earthquakes, they can enter rugged and dangerous places on behalf of humans for environmental detection, providing key information for rescue work; in addition, in large industrial sites such as warehouses and factories, mobile robots can also automatically track and carry goods, greatly improving production efficiency.

[0003] However, the chassis design of current mobile robots or autonomous vehicles still faces some challenges. Although traditional tracked chassis have good terrain adaptability, their movement efficiency is low, the noise is large, and the manufacturing cost is high, which limits their application in some scenarios. While wheeled chassis have high driving efficiency, their stability and passability are greatly limited when facing complex terrains such as sand, slopes, and stairs. In addition, the existing mobile chassis of robots have relatively single movement methods and often can only adopt avoidance strategies when encountering obstacles. This not only increases the movement time and reduces the task completion efficiency, but also when encountering situations that require crossing steps or other terrain mutations, the robot may be unable to effectively adapt to these terrain changes due to limitations in the chassis structure or movement ability, resulting in its inability to perform normal forward operations, and even possible failures or damages. This situation will not only affect the smooth completion of tasks, but may also bring additional risks and troubles to operators. Therefore, it is particularly important to develop robot chassis technology that can adapt to complex terrain changes. Summary of the Invention

[0004] To solve the problems proposed in the above background art, namely, the high cost, low efficiency, and high noise of traditional tracked chassis, while the stability and passability of wheeled chassis are limited in complex terrains, and the movement method is single, making it difficult to effectively adapt to terrain changes and affecting the task execution efficiency and safety, the present invention provides a site-adaptive intelligent chassis.

[0005] To achieve the above object, the present invention provides the following technical solution: a site-adaptive intelligent chassis, including a first chassis plate, a rotating rod is rotatably installed at the bottom of the first chassis plate, and two second chassis plates are fixedly sleeved on the outer wall of the rotating rod, and two adjusting mechanisms are respectively arranged on the outer walls of the two second chassis plates; The adjusting mechanism includes a transmission component and an adjusting component. The adjusting component includes a driving rod rotatably installed at the bottom of the second chassis plate. A first gear and a second gear are fixedly sleeved on the outer wall of the driving rod. A shaft kit is arranged between the first gear and the second gear. The shaft kit is rotatably connected to the driving rod. A first tooth groove is formed on the outer wall of one end of the shaft kit close to the first gear. Four arc-shaped blocks are rotatably installed on the outer wall of the shaft kit. Second tooth grooves are respectively formed on the outer walls of the four arc-shaped blocks close to the first tooth groove, and the four second tooth grooves are all meshed with the first tooth groove.

[0006] Preferably, four first sliding grooves are formed at the bottom of the first chassis plate, and shock-absorbing mechanisms are respectively arranged inside the four first sliding grooves; The shock-absorbing mechanism includes a second moving block slidably installed on the inner wall of the first sliding groove. The two sides of the second moving block and the mutually close sides of the inner wall of the first sliding groove are elastically connected by two spring-damper rod assemblies respectively. The bottom of the second moving block is hinged with a connecting rod, and the bottom of the connecting rod is hinged with the top of the second chassis plate.

[0007] Preferably, shock-absorbing and protective pads are respectively fixedly installed on the outer walls of the four arc-shaped blocks, and anti-slip patterns are respectively formed on the outer walls of the four shock-absorbing and protective pads.

[0008] Preferably, the four arc-shaped blocks are designed to be evenly distributed in a circumferential manner with the driving rod as the center, and the outer arc lengths of the four shock-absorbing and protective pads are equal.

[0009] Preferably, the transmission component includes a first moving block slidably installed at the bottom of the second chassis plate. A second motor is fixedly installed on one side of the first moving block close to the arc-shaped block. A fourth gear is fixedly installed on the output shaft of the second motor, and the fourth gear is meshed with the first gear.

[0010] Preferably, an installation groove and two second sliding grooves are formed at the bottom of the second chassis plate. Two limiting protrusions are fixedly installed at the bottom of the first moving block, and the two limiting protrusions are respectively slidably connected with the corresponding second sliding grooves.

[0011] Preferably, a motor protection shell is fixedly installed on the outer wall of the second chassis plate. A second motor is fixedly installed on the inner wall of the motor protection shell. The output shaft of the second motor extends into the installation groove and is rotatably connected with the second chassis plate. A fourth gear is fixedly sleeved on the output shaft of the second motor, and the fourth gear is meshed with the rack.

[0012] Preferably, the cross-sections of several of the shock-absorbing and protective pads are in the shape of an "I", and the width value of the shock-absorbing and protective pads located on the outer circle is greater than that of the inner circle.

[0013] Preferably, the two sets of adjusting mechanisms have the same structure but opposite directions, and are designed in a symmetrical distribution.

[0014] Preferably, reinforcing plates are respectively fixedly installed on both sides of the bottom of the chassis plate one, and both of the two reinforcing plates are rotatably connected to the rotating rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting the adjusting mechanism in the present invention, when encountering a step, the first motor is started. Through the meshing of the third gear and the rack, the second motor and its fourth gear are driven to a suitable position and successfully meshed with the first gear. The start of the second motor causes the first gear and the driving rod to rotate. Through the interaction between the second gear and the second tooth groove, the four arc-shaped blocks are driven to unfold. The reverse rotation of the first motor and the restart of the second motor drive the first tooth groove and the shaft kit to rotate, enabling the device to smoothly climb onto the step and continue to travel smoothly, reflecting the flexible response and high obstacle-crossing ability of the device in the face of complex terrains.

[0016] Due to the rotational connection between the second chassis plate and the first chassis plate in the present invention, when the shock-absorbing and protective pad in the front first contacts the depression, the first chassis plate can maintain a horizontal state, avoiding deflection or imbalance caused by uneven ground. This not only protects the core components of the device from damage but also ensures the smoothness and safety during driving, providing a more comfortable experience for the driver.

[0017] By setting the shock-absorbing mechanism in the present invention, the second chassis plate rotates around the rotating rod, and the angle formed with the first chassis plate realizes the effective absorption of the swaying force through the linkage of the connecting rod and the second moving block. The second moving block slides in the first sliding groove at the bottom of the first chassis plate. At the same time, the two spring damper rod assemblies, with their excellent elastic connection performance, further enhance the stability of the device. When the second chassis plate sways, the spring damper rod assemblies can quickly respond, absorb and disperse the force generated by the swaying, thereby maintaining the balance and stability of the first chassis plate, improving the driving safety of the device and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic bottom structural diagram of the present invention; Figure 3 is a schematic structural diagram of the present invention; Figure 4 is a schematic cross-sectional structural diagram of one side of the chassis plate of the present invention; Figure 5Explosion structure schematic diagram of the first chassis plate and the second chassis plate of the present invention; Figure 6 Explosion structure schematic diagram of the shock absorption mechanism of the present invention; Figure 7 Explosion structure schematic diagram of the adjustment component and the transmission component and the second chassis plate of the present invention; Figure 8 Structure schematic diagram of the transmission component of the present invention; Figure 9 Structure schematic diagram of the adjustment component of the present invention; Figure 10 Open structure schematic diagram of the adjustment component of the present invention; Figure 11 Cross-sectional structure schematic diagram of the adjustment component of the present invention; Figure 12 Structure schematic diagram of the arc-shaped block of the present invention.

[0019] In the figure: 1. The first chassis plate; 101. Reinforcement plate; 102. First sliding groove; 2. Rotating rod; 3. The second chassis plate; 301. Motor protection shell; 302. Installation groove; 303. Second sliding groove; 4. Driving rod; 401. First gear; 402. Second gear; 5. Shaft kit; 501. First tooth groove; 6. Arc-shaped block; 601. Second tooth groove; 602. Shock absorption and protection pad; 6021. Anti-slip pattern; 7. First motor; 701. Third gear; 8. First moving block; 801. Rack; 802. Limit convex block; 9. Second motor; 901. Fourth gear; 10. Second moving block; 11. Spring-damper rod assembly; 12. Connecting rod. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] As Figures 1 to 12 shown, the present invention provides a site-adaptive intelligent chassis, including a first chassis plate 1. A rotating rod 2 is rotatably installed at the bottom of the first chassis plate 1. Two second chassis plates 3 are fixedly sleeved on the outer wall of the rotating rod 2. Two adjustment mechanisms are respectively arranged on the outer walls of the two second chassis plates 3; The adjusting mechanism includes a transmission component and an adjusting component. The adjusting component includes a driving rod 4 rotatably installed at the bottom of the second chassis plate 3. A first gear 401 and a second gear 402 are fixedly sleeved on the outer wall of the driving rod 4. A shaft kit 5 is arranged between the first gear 401 and the second gear 402. The shaft kit 5 is rotatably connected to the driving rod 4. A first tooth groove 501 is formed on the outer wall of one end of the shaft kit 5 close to the first gear 401. Four arc-shaped blocks 6 are rotatably installed on the outer wall of the shaft kit 5. Second tooth grooves 601 are respectively formed on the outer walls of the four arc-shaped blocks 6 close to the first tooth groove 501. All the four second tooth grooves 601 are engaged with the first tooth groove 501.

[0022] Through the cooperation between the first gear 401 and the second gear 402 and the shaft kit 5, the rotation of the driving rod 4 can drive the first gear 401 and the second gear 402 to rotate synchronously. Furthermore, through the meshing relationship between the first tooth groove 501 on the shaft kit 5 and the second tooth grooves 601 on the four arc-shaped blocks 6, the position and angle of the arc-shaped blocks 6 are adjusted. Whether facing uneven ground or complex obstacles, the device can quickly adjust its shape through the adjusting mechanism to adapt to different driving environments.

[0023] As Figures 3 to 5 shown, four first sliding grooves 102 are formed at the bottom of the first chassis plate 1. Shock-absorbing mechanisms are respectively arranged inside the four first sliding grooves 102; The shock-absorbing mechanism includes a second moving block 10 slidably installed on the inner wall of the first sliding groove 102. The two sides of the second moving block 10 and the two sides of the inner wall of the first sliding groove 102 close to each other are elastically connected through two spring-damper rod assemblies 11 respectively. The bottom of the second moving block 10 is hingedly installed with a connecting rod 12. The bottom of the connecting rod 12 is hinged to the top of the second chassis plate 3.

[0024] By providing four first sliding grooves 102, not only an installation space is provided for the shock-absorbing mechanism, but also the device can have more room for adjustment when dealing with complex terrains. The core lies in the second moving block 10 slidably installed on the inner wall of the first sliding groove 102. When the device encounters bumps or uneven ground, the second moving block 10 can freely slide in the first sliding groove 102, thereby absorbing and dispersing the impact force from the ground. The elastic connection is realized through the two spring-damper rod assemblies 11 between the two sides of the second moving block 10 and the inner wall of the first sliding groove 102, enhancing the shock-absorbing effect and being able to perform adaptive adjustment according to the magnitude of the impact force to ensure that the device always maintains stability during driving. The bottom of the second moving block 10 is hingedly connected to the top of the second chassis plate 3 through the connecting rod 12. This connection method not only enables the second chassis plate 3 to make more flexible adjustments when encountering bumps, but also can more evenly distribute the impact force absorbed by the shock-absorbing mechanism to the whole device through the transmission of the connecting rod 12, thereby further improving the stability and durability of the device.

[0025] As shown Figures 8 to 10 As shown, shock-absorbing and protective pads 602 are fixedly installed on the outer walls of the four arc-shaped blocks 6 respectively, and anti-slip patterns 6021 are respectively formed on the outer walls of the four shock-absorbing and protective pads 602.

[0026] By providing the anti-slip patterns 6021 on the outer walls of the four shock-absorbing and protective pads 602, not only the friction between the shock-absorbing and protective pads 602 and the ground is increased, making the device more stably fit the ground during driving, preventing potential safety hazards caused by slipping or skidding, but also the anti-slip patterns 6021 can improve the grip of the device on wet or muddy ground, ensuring that the device can maintain excellent driving performance in various complex environments.

[0027] As shown Figure 8 As shown, the four arc-shaped blocks 6 are designed to be evenly distributed in a circular pattern around the driving rod 4 at equal distances, and the outer arc lengths of the four shock-absorbing and protective pads 602 are equal.

[0028] By evenly distributing the four arc-shaped blocks 6 in a circular pattern around the driving rod 4 at equal distances, it ensures that the device can maintain a balanced mechanical state when adjusting its shape. No matter what kind of complex terrain it faces, the arc-shaped blocks 6 can be evenly stressed, avoiding chassis instability or damage caused by uneven stress, and can more smoothly fit the ground during driving, reducing bumps and vibrations, and improving the comfort and stability of driving.

[0029] As shown Figure 7 As shown, the transmission assembly includes a moving block 8 slidably installed at the bottom of the second chassis plate 3. A second motor 9 is fixedly installed on the side of the moving block 8 close to the arc-shaped block 6. A fourth gear 901 is fixedly installed on the output shaft of the second motor 9, and the fourth gear 901 meshes with the first gear 401.

[0030] By starting the second motor 9, the fourth gear 901 fixedly installed on its output shaft is in close mesh with the first gear 401, ensuring efficient power transmission, and also enabling the second motor 9 to control the rotation speed and direction of the first gear 401. When adaptive adjustment according to terrain changes is required, the second motor 9 can quickly respond and adjust the rotation state of the fourth gear 901 on its output shaft, thereby driving the first gear 401 and the driving rod 4 to rotate accordingly.

[0031] As shown Figures 6 to 7 As shown, an installation groove 302 and two second sliding grooves 303 are formed at the bottom of the second chassis plate 3. Two limiting protrusions 802 are fixedly installed at the bottom of the moving block 8, and the two limiting protrusions 802 are respectively slidably connected to the corresponding second sliding grooves 303.

[0032] Through the matching design of the sliding groove 2 303 and the limiting protrusion 802 on the moving block 1 8 , when adaptive adjustment is required according to terrain changes, the moving block 1 8 and the motor 2 9 thereon can be flexibly moved and adjusted along the sliding groove 2 303 .

[0033] like Figures 7 to 12 As shown, a motor protection shell 301 is fixedly installed on the outer wall of the chassis plate 23, and a motor 29 is fixedly installed on the inner wall of the motor protection shell 301. The output shaft of the motor 29 extends into the mounting groove 302 and is rotatably connected to the chassis plate 23. A gear 4 901 is fixedly sleeved on the output shaft of the motor 29, and the gear 4 901 is meshed with the rack 801. The cross-section of several shock-absorbing protective pads 602 is I-shaped, and the width value of the shock-absorbing protective pads 602 located on the outer circle is greater than the width value of the inner circle.

[0034] Through the meshing design of the output shaft of motor 29 and rack 801, when adaptive adjustment is required according to terrain changes, motor 29 can drive gear 4 901 to rotate, thereby driving rack 801 and moving block 1 8 to move and adjust accordingly. By making the cross-section of the shock-absorbing protection pad 602 I-shaped and the width of the shock-absorbing protection pad 602 located on the outer circle greater than the width of the inner circle, the contact area between the shock-absorbing protection pad 602 and the ground is increased, thereby improving its buffering effect. In addition, by designing that the width of the outer circle is greater than that of the inner circle, the stability and load-bearing capacity of the chassis when dealing with complex terrain are enhanced.

[0035] like Figures 1 to 2 As shown, the two sets of adjustment mechanisms have the same structure but opposite directions and are symmetrically distributed. Reinforcement plates 101 are fixedly installed on both sides of the bottom of the chassis plate 1, and the two reinforcement plates 101 are rotatably connected to the rotating rod 2.

[0036] The two sets of adjustment mechanisms have the same structure but opposite directions and are symmetrically distributed, ensuring that the device can maintain balance when adjusting its shape, avoiding instability or damage caused by excessive force on one side. The symmetrically distributed adjustment mechanisms can also make more flexible and precise adjustments according to terrain changes, allowing the chassis to better fit the ground, reducing bumps and vibrations, and improving driving comfort and stability.

[0037] The working principle and use process of the present invention: Embodiment 1: When the device encounters a step in front of it during driving: Start motor 1 7. The output shaft of motor 1 7 rotates to drive gear 3 701 to rotate. Through the meshing of gear 3 701 and rack 801, the rotation of gear 3 701 is converted into the horizontal movement of rack 801. The movement of rack 801 drives moving block 1 8 and motor 2 9 to move. Motor 2 9 drives gear 4 901 to move. By adjusting the position of gear 4 901, gear 4 901 is meshed with gear 1 401. Then start motor 2 9, so that the output shaft of motor 2 9 rotates to drive gear 4 901 to rotate. Gear 4 901 drives gear 1 401 to rotate. Gear 1 401 drives driving rod 4 and gear 2 402 to rotate. Through the meshing of gear 2 402 and tooth slot 2 601, arc block 6 rotates, so that the four arc blocks 6 open to form Figure 9 as shown. Then turn off motor 2 9, and start motor 1 7 again, so that the output shaft of motor 1 7 rotates in the reverse direction, so that moving block 1 8 and motor 2 9 move, so that gear 4 901 is meshed with tooth slot 1 501. Then start motor 2 9, so that tooth slot 1 501 drives shaft kit 5 to rotate, so as to drive the device to climb onto the step and continue to drive.

[0038] Embodiment 2: When the ground is uneven during the driving of the device: Since the two chassis plates 2 3 and chassis plate 1 1 are rotatably connected, when the ground is uneven, when the front shock-absorbing and protecting pad 602 first enters the depression, due to the rotatable connection between chassis plate 2 3 and chassis plate 1 1, chassis plate 1 1 remains horizontal and will not deflect when sliding downward with the front shock-absorbing and protecting pad 602, effectively maintaining the stability of chassis plate 1 1.

[0039] Embodiment 3: When the ground is uneven during the driving of the device: Due to the unevenness of the ground, chassis plate 2 3 rotates around rotating rod 2 as the center. When chassis plate 2 3 and chassis plate 1 1 are initially parallel to each other, when an angle is formed between chassis plate 2 3 and chassis plate 1 1, chassis plate 2 3 drives connecting rod 12 to move together. Connecting rod 12 drives moving block 2 10 to slide in sliding groove 1 102 at the bottom of chassis plate 1 1. Through the elastic connection of the two spring-damper rod assemblies 11 on both sides of moving block 2 10, when chassis plate 2 3 swings, several spring-damper rod assemblies 11 can absorb the force of the swing of chassis plate 2 3, so as to maintain the balance of chassis plate 1 1.

[0040] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill 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 present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A site-adaptive intelligent chassis, comprising a chassis plate 1 (1), characterized in that: A rotating rod (2) is rotatably mounted at the bottom of the chassis plate 1 (1), two chassis plates 2 (3) are fixedly sleeved on the outer wall of the rotating rod (2), and two adjustment mechanisms are respectively arranged on the outer walls of the two chassis plates 2 (3); The adjustment mechanism comprises a transmission component and an adjustment component, wherein the adjustment component comprises an active rod (4) rotatably mounted at the bottom of the second chassis plate (3), a gear 1 (401) and a gear 2 (402) being fixedly sleeved on the outer wall of the active rod (4), a shaft kit (5) being arranged between the gear 1 (401) and the gear 2 (402), the shaft kit (5) being rotatably connected to the active rod (4), a tooth groove 1 (501) being provided on the outer wall of one end of the shaft kit (5) close to the gear 1 (401), four arc blocks (6) being rotatably mounted on the outer wall of the shaft kit (5), tooth grooves 2 (601) being respectively provided on the outer walls of the four arc blocks (6) on one side close to the tooth groove 1 (501), and the four tooth grooves 2 (601) are all meshed with the tooth groove 1 (501).

2. The site-adaptive intelligent chassis according to claim 1, characterized in that: The bottom of the chassis plate 1 (1) is provided with four sliding grooves 1 (102), and shock absorbing mechanisms are respectively arranged inside the four sliding grooves 1 (102); The shock absorbing mechanism comprises a moving block 2 (10) slidably mounted on the inner wall of a sliding groove 1 (102), the two sides of the moving block 2 (10) being elastically connected to the inner wall of the sliding groove 1 (102) via two spring damping rod assemblies (11), the bottom of the moving block 2 (10) being hingedly mounted with a connecting rod (12), the bottom of the connecting rod (12) being hingedly connected to the top of a chassis plate 2 (3).

3. The site-adaptive intelligent chassis according to claim 1, characterized in that: Shock-absorbing protective pads (602) are respectively fixedly mounted on the outer walls of the four arc-shaped blocks (6), and anti-slip grooves (6021) are respectively provided on the outer walls of the four shock-absorbing protective pads (602).

4. The site-adaptive intelligent chassis according to claim 1, characterized in that: The four arc-shaped blocks (6) are designed to be distributed around the active rod (4) at equal distances, and the outer arc lengths of the four shock-absorbing protective pads (602) are equal.

5. The site-adaptive intelligent chassis according to claim 1, characterized in that: The transmission assembly comprises a moving block 1 (8) slidably mounted on the bottom of the second chassis plate (3); a motor 2 (9) is fixedly mounted on a side of the moving block 1 (8) close to the arc block (6); a gear 4 (901) is fixedly mounted on an output shaft of the motor 2 (9); and the gear 4 (901) is meshed with the gear 1 (401).

6. The site-adaptive intelligent chassis according to claim 5, characterized in that: The bottom of the second chassis plate (3) is provided with a mounting groove (302) and two second sliding grooves (303), and the bottom of the first moving block (8) is fixedly provided with two limiting protrusions (802), and the two limiting protrusions (802) are respectively slidably connected with the corresponding second sliding grooves (303).

7. The site-adaptive intelligent chassis according to claim 6, characterized in that: A motor protection shell (301) is fixedly mounted on the outer wall of the second chassis plate (3), and a second motor (9) is fixedly mounted on the inner wall of the motor protection shell (301). The output shaft of the second motor (9) extends into the mounting groove (302) and is rotationally connected to the second chassis plate (3). A fourth gear (901) is fixedly sleeved on the output shaft of the second motor (9), and the fourth gear (901) is meshed with a rack (801).

8. The site-adaptive intelligent chassis according to claim 3, characterized in that: The cross-sections of the plurality of shock-absorbing protective pads (602) are in an I-shape, and the width of the shock-absorbing protective pads (602) located in the outer circle is greater than the width of the inner circle.

9. The site-adaptive intelligent chassis according to claim 1, characterized in that: The two groups of adjustment mechanisms have the same structure but opposite directions and are designed to be symmetrically distributed.

10. The site-adaptive intelligent chassis according to claim 1, characterized in that: Reinforcement plates (101) are respectively fixedly mounted on both sides of the bottom of the chassis plate 1 (1), and both reinforcement plates (101) are rotatably connected to the rotating rod (2).