An extendable adaptive off-highway vehicle travel system, method of adjustment, and vehicle

Abstract

The application discloses a kind of extension adaptive engineering machinery walking systems, adjusting method and vehicle, including extension walking platform system and H frame;Extension walking platform system includes left walking system, right walking system, front extension beam and rear extension beam;The two ends of front extension beam are fixed with the front connecting plate of left walking system and right walking system;The two ends of rear extension beam are fixed with the rear connecting plate of left walking system and right walking system;The front end of H frame is fixed with the upper connecting plate of front extension beam, and the rear end is fixed with the upper connecting plate of rear extension beam.The application is based on traditional walking mode, and high adaptability extension design is carried out, and adaptability adjustment can be carried out in height and width direction according to actual working condition, which can meet the demand of daily ordinary working condition, and can quickly adapt to height and width multidimensional demand, meet the requirements of high field of view, high passability, high stability and high adaptability.

Description

Technical Field

[0001] This invention relates to an extended and adaptable engineering machinery walking system, adjustment method, and vehicle, belonging to the field of engineering machinery. Background Technology

[0002] Construction machinery, especially large tracked mining machinery, needs to have high reliability, high stability and high adaptability under its harsh and severe working conditions. The high stability and high adaptability of large mining machinery are mainly reflected in its walking system.

[0003] Traditional walking systems are divided into two main types: one is the integral welded type, where the entire H-frame and the left and right walking systems are welded together as a whole, which has high strength, but poor equipment passability and adaptability; the other is the integral assembly type, where the H-frame and the left and right walking systems are assembled structures, and some equipment can realize the extension and retraction of the walking system within a small range, which can improve vehicle stability to a certain extent, but the effect is limited and is mainly used to solve vehicle transportation problems.

[0004] For working conditions requiring high visibility, high stability, high passability, and high adaptability, higher requirements are placed on the adaptability of equipment. It must not only meet the needs of daily working conditions, but also allow for convenient and rapid adaptive structural adjustments. Higher requirements are also placed on safety and ease of maintenance. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention provides an extended and adaptable engineering machinery walking system that meets the needs of ordinary daily working conditions and can be easily and quickly adapted to meet requirements such as high visibility, high passability, high stability, and high adaptability.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] In a first aspect, the present invention discloses an extended adaptive engineering machinery walking system, including an extended walking platform system and an H-frame. The extended walking platform system includes a left walking system, a right walking system, a front extended beam, and a rear extended beam. The two ends of the front extended beam are respectively fixed to the front connecting plates of the left and right walking systems. The two ends of the rear extended beam are respectively fixed to the rear connecting plates of the left and right walking systems. The front end of the H-frame is fixed to the upper connecting plate of the front extended beam, and the rear end is fixed to the upper connecting plate of the rear extended beam.

[0008] In some embodiments, the front extension beam and the rear extension beam have the same overall structure.

[0009] In some embodiments, the front extension beam has an overall box-type structure, including:

[0010] The top part has a symmetrical structure and consists of multiple cover plates and connecting plates of varying thicknesses.

[0011] The bottom part has a symmetrical structure and consists of multiple base plates and connecting plates of varying thicknesses.

[0012] The windshield section has a symmetrical structure and consists of multiple front impact plates;

[0013] The main support structure, installed between the top, bottom and front sections, consists of multiple box-like structures of varying sizes.

[0014] In some embodiments, the top portion includes a right cover plate, a left cover plate, a middle cover plate, a right connecting plate, and a left connecting plate; the right cover plate and the left cover plate are located at the outermost sides of the top, the middle cover plate is located at the center of the front extension beam, the right connecting plate is located between the middle cover plate and the right cover plate, and the left connecting plate is located between the middle cover plate and the left cover plate; the H-frame is connected to the connecting plates of the right connecting plate and the left connecting plate, and the surfaces of the two connecting plates that mate with the H-frame are kept on the same plane.

[0015] In some embodiments, the thickness of the right connecting plate and the left connecting plate is greater than that of the right cover plate, the left cover plate, and the middle cover plate; the right connecting plate and the left connecting plate are provided with a plurality of threaded holes for connecting with the H-frame; the right connecting plate and the right cover plate and the middle cover plate achieve a thickness reduction transition through a large chamfer, and K-type bevels are opened at their joints to naturally form a double V bevel weld; the left connecting plate and the left cover plate and the middle cover plate achieve a thickness reduction transition through a large chamfer, and K-type bevels are opened at their joints to naturally form a double V bevel weld.

[0016] In some embodiments, the bottom portion includes a right bottom plate, a left bottom plate, a right main connecting plate, and a left main connecting plate; the right main connecting plate and the left main connecting plate are located on both sides of the front extension beam, and the right bottom plate and the left bottom plate are located between the right main connecting plate and the left main connecting plate; the right main connecting plate is connected to the right travel system, and the left main connecting plate is connected to the left travel system, and the two surfaces of the two main connecting plates that mate with the left and right travel systems are kept on the same plane.

[0017] In some embodiments, the thickness of the right main connecting plate and the left main connecting plate is greater than that of the right bottom plate and the left bottom plate; the right main connecting plate and the left main connecting plate are provided with multiple through holes connecting the left and right walking systems; the left bottom plate and the right bottom plate are respectively provided with K-type bevels at their joints, naturally forming double V-bevel welds; the right main connecting plate and the right bottom plate achieve a thickness reduction transition through a large chamfer, and K-type bevels are respectively provided at their joints, naturally forming double V-bevel welds; the left main connecting plate and the left bottom plate achieve a thickness reduction transition through a large chamfer, and K-type bevels are respectively provided at their joints, naturally forming double V-bevel welds.

[0018] In some embodiments, the main support structure includes a middle main box, a left box, and a right box; the left box is formed by a left main support plate, a left support plate, a left main support plate, a left cover plate, and a left support plate; the right box is formed by a right main support plate, a right support plate, a right main support plate, a right cover plate, and a right support plate; the middle main box is formed by a left main support plate, a right main support plate, a top portion, a bottom portion, and a front section portion.

[0019] In some embodiments, the intermediate main box body is provided with multiple vertical stiffening plates; the thickness of the left main support plate is greater than that of the left support plate, and the thickness of the two plates decreases through a large chamfer, and K-shaped bevels are opened respectively to naturally form double V-shaped bevel welds; the thickness of the right main support plate is greater than that of the right support plate, and the thickness of the two plates decreases through a large chamfer, and K-shaped bevels are opened respectively to naturally form double V-shaped bevel welds; the right support plate overlaps the right main support plate to naturally form a V-shaped bevel weld; the left support plate overlaps the left main support plate to naturally form a V-shaped bevel weld.

[0020] In some embodiments, the left cover plate, right cover plate, right front impact plate and left front impact plate on the rear extension beam are respectively provided with through holes.

[0021] Secondly, the present invention discloses a vehicle equipped with the aforementioned extended and adaptable engineering machinery walking system.

[0022] Thirdly, the present invention discloses an adjustment method for the above-mentioned extended and adaptive engineering machinery walking system:

[0023] The left main connecting plate of the front extension beam is connected to the left front connecting plate of the left travel system, and the right main connecting plate of the front extension beam is connected to the right front connecting plate of the right travel system.

[0024] The rear extension beam is installed in the opposite direction to the front extension beam, and the two are placed symmetrically. The rear extension beam is connected to the left rear connecting plate of the left travel system and the right rear connecting plate of the right travel system to form a stable extension travel platform system.

[0025] The mounting plates at the four corners of the H-frame are respectively connected to the corresponding connecting plates on the front and rear extension beams, thereby achieving the overall adaptive adjustment.

[0026] Beneficial effects of this invention:

[0027] This invention is based on traditional walking modes but incorporates a highly adaptable extension design. It can adaptively adjust in height and width according to actual working conditions, meeting both everyday working needs and quickly adapting to multi-dimensional requirements in height and width. This satisfies requirements such as high visibility, high maneuverability, high stability, and high adaptability. The invention is designed as multiple independent systems with a simple structure and no redundant connections between them, facilitating rapid adaptation to different working conditions, maximizing market satisfaction, and reducing service costs. Attached Figure Description

[0028] The accompanying drawings, as part of this invention, are provided to further illustrate the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation thereof. Clearly, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0029] In the attached diagram:

[0030] Figure 1 This is a diagram illustrating the daily operating conditions of the present invention;

[0031] Figure 2 This is a diagram illustrating the extended adaptability of the present invention under various operating conditions.

[0032] Figure 3 The extended and adaptable engineering machinery walking system structure of the present invention Figure 1 ;

[0033] Figure 4 The extended and adaptable engineering machinery walking system structure of the present invention Figure 2 ;

[0034] Figure 5 The extended and adaptable engineering machinery walking system structure of the present invention Figure 3 ;

[0035] Figure 6 This is a structural diagram of the extended walking platform system of the present invention;

[0036] Figure 7 This is a structural diagram of the left-hand walking system of the present invention;

[0037] Figure 8 This is a structural diagram of the right-hand drive system of the present invention;

[0038] Figure 9 The front extension beam structure of the present invention Figure 1 ;

[0039] Figure 10 The front extension beam structure of the present invention Figure 2 ;

[0040] Figure 11 The front extension beam structure of the present invention Figure 3 ;

[0041] Figure 12 The front extension beam structure of the present invention Figure 4 ;

[0042] Figure 13 This is a structural diagram of the extended beam of the present invention.

[0043] Attached diagram labels: 1. H-frame, 2. Front extension beam, 3. Rear extension beam, 4. Left travel system, 5. Right travel system, 201. Right cover plate, 202. Right connecting plate, 203. Middle cover plate, 204. Left connecting plate, 205. Left cover plate, 206. Lifting lug, 207. Support rib, 208. Left front impact plate, 209. Right front impact plate, 210. Support rib, 211. Right main connecting plate, 212. Right bottom plate, 213. Left bottom plate, 214. Left main connecting plate, 215. Left main support plate, 216. Left support plate, 217. Left main support plate, 218. Right main support plate, 219. Right support plate, 220. Right main support plate, 221. Right side. Support plate, 222, Right vertical stiffener plate one, 223, Right vertical stiffener plate two, 224, Right main stiffener plate one, 225, Right main stiffener plate two, 226, Middle main vertical stiffener plate, 227, Left main stiffener plate two, 228, Left main stiffener plate one, 229, Left vertical stiffener plate two, 230, Left vertical stiffener plate one, 231, Left support plate, 232, Small stiffener plate, 301, Left cover plate, 302, Right cover plate, 303, Right front impact plate, 304, Left front impact plate, 3011, Pipe hole, 3021, Pipe hole, 3031, Pipe hole, 3041, Pipe hole, 401, Left front connecting plate, 402, Left rear connecting plate, 501, Right front connecting plate, 502, Right rear connecting plate.

[0044] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0046] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] An extendable and adaptable walking system for engineering machinery, which can be adjusted to adapt to different working conditions. Figure 1 This represents the status of the equipment's walking system under normal operating conditions. Figure 2 To describe the mobility system of equipment under adaptive operating conditions, this invention focuses on the mobility system under adaptive conditions.

[0049] like Figure 3 , Figure 4 , Figure 5 As shown, an extended adaptive engineering machinery walking system includes an extended walking platform system and an H-frame 1. The extended walking platform system includes a left walking system 4, a right walking system 5, a front extended beam 2, and a rear extended beam 3. The two ends of the front extended beam 2 are fixed to the front connecting plates of the left walking system 4 and the right walking system 5, respectively. The two ends of the rear extended beam 3 are fixed to the rear connecting plates of the left walking system 4 and the right walking system 5, respectively. The H-frame 1 is not directly fixed to the left walking system 4 and the right walking system 5, but is fixedly connected to the front extended beam 2 and the rear extended beam 3 in the extended walking platform system. That is, the installation direction of the H-frame 1 is 90 degrees compared with the normal working condition. The front end of the H-frame 1 is fixed to the upper connecting plate of the front extended beam 2, and the rear end is fixed to the upper connecting plate of the rear extended beam 3.

[0050] like Figure 6 , Figure 7 , Figure 8As shown, the front extension beam 2 is fixed to the left front connecting plate 401 of the left travel system 4 and the right front connecting plate 501 of the right travel system 5, respectively. The rear extension beam 3 is fixed to the left rear connecting plate 402 of the left travel system 4 and the right rear connecting plate 502 of the right travel system 5, respectively, forming a stable extended travel platform system. The H frame 1 is fixed to the extended travel platform system by the right connecting plate 202 and the left connecting plate 204 of the front extension beam 2 and the rear extension beam 3.

[0051] In the extended walking platform system, the two connecting plate planes on the front extended beam 2 that cooperate with the H frame 1 and the two connecting plate planes on the rear extended beam 3 that cooperate with the H frame 1 are always kept on the same plane, so as to ensure the stability of the H frame and the entire upper vehicle.

[0052] Figure 9 , Figure 10 , Figure 11 , Figure 12 The front extension beam 2 has a box-shaped structure, in which the left main plate 217 and the right main plate 218 form the main support structure that runs horizontally across the entire extension beam, supporting the entire box structure.

[0053] like Figure 9 As shown, the top of the front extension beam 2 is composed of cover plates and connecting plates of varying thicknesses. The right cover plate 201 and the left cover plate 205 are located on the far sides of the top, the middle cover plate 203 is located at the center of the front extension beam 2, and the right connecting plate 202 and the left connecting plate 204 are located on both sides of the middle cover plate 203. The entire top structure is symmetrically distributed, with the two connecting plates being the thickest and having multiple threaded holes for fixing the H frame 1. The surfaces of the right connecting plate 202 and the left connecting plate 204 that mate with the H frame 1 must be kept on the same plane.

[0054] The right connecting plate 202, the right cover plate 201, and the middle cover plate 203 achieve a thickness reduction transition through a large chamfer, and K-shaped grooves are opened at their joints to naturally form a double V groove weld; the left connecting plate 204, the left cover plate 205, and the middle cover plate 203 achieve a thickness reduction transition through a large chamfer, and K-shaped grooves are opened at their joints to naturally form a double V groove weld.

[0055] Lifting lugs 206 are provided on both the right cover plate 201 and the left cover plate 205.

[0056] like Figure 10As shown, the bottom of the front extension beam 2 is composed of a right bottom plate 212, a left bottom plate 213, a right main connecting plate 211, and a left main connecting plate 214 with different thicknesses. The right main connecting plate 211 and the left main connecting plate 214 are thicker and are located at the outer ends of both sides of the front extension beam 2. They have multiple through holes for connection and fixation with the left travel system 4 and the right travel system 5. The two surfaces of the right main connecting plate 211 and the left main connecting plate 214 that mate with the left travel system 4 and the right travel system 5 must be kept on the same plane.

[0057] K-shaped bevels are opened at the joint of the left base plate 213 and the right base plate 212, naturally forming a double V bevel weld; the right main connecting plate 211 and the right base plate 212 achieve a thickness reduction transition through a large chamfer, and K-shaped bevels are opened at their joints, naturally forming a double V bevel weld; the left main connecting plate 204 and the left base plate 213 achieve a thickness reduction transition through a large chamfer, and K-shaped bevels are opened at their joints, naturally forming a double V bevel weld.

[0058] like Figure 9 As shown, a support rib 210 is installed between the right main connecting plate 211 and the right cover plate 201, and a support rib 207 is installed between the left main connecting plate 214 and the left cover plate 205.

[0059] like Figure 9 As shown, the left front impact plate 208 and the right front impact plate 209 form the front stop part of the front extension beam 2. The impact plates overlap on the main plate, naturally forming a V-shaped groove weld.

[0060] like Figure 11 , Figure 12 As shown, the entire top, bottom, front section and main support structure of the front extension beam 2 form the main box frame of the front extension beam 2. The right main stiffening plate 1 224, the right main stiffening plate 225, the middle main vertical stiffening plate 226, the left main stiffening plate 227 and the left main stiffening plate 1 228 are symmetrically distributed inside the box.

[0061] On each side of the front extension beam 2, there is a small box structure. The left main support plate 215, left support plate 216, left main support plate 217, left cover plate 205, and left support plate 231 form the left small box structure of the front extension beam 2; the right main support plate 220, right support plate 219, right main support plate 218, right cover plate 201, and right support plate 221 form the right small box structure of the front extension beam 2. Each box structure has two stiffening plates inside: left vertical stiffening plate 229, left vertical stiffening plate 1 230, right vertical stiffening plate 1 222, and right vertical stiffening plate 223. A small stiffening plate 232 is installed between the side support plate and the main connecting plate.

[0062] The left main support plate 215 and the left support plate 216 on the side of the left small box have different thicknesses, with the left main support plate 215 being thicker. The thickness of the two plates is gradually reduced by a large chamfer, and K-shaped bevels are opened on each plate to naturally form a double V-groove weld. The right main support plate 220 and the right support plate 219 on the side of the right small box have different thicknesses, with the right main support plate 220 being thicker. The thickness of the two plates is gradually reduced by a large chamfer, and K-shaped bevels are opened on each plate to naturally form a double V-groove weld.

[0063] The right support plate 219 overlaps the right main plate 218, naturally forming a V-shaped groove weld; the left support plate 216 overlaps the left main plate 217, naturally forming a V-shaped groove weld.

[0064] like Figure 13 As shown, the rear extension beam 3 has the same overall structure as the front extension beam 2. The difference is that the left cover plate 301, right cover plate 302, right front impact plate 303 and left front impact plate 304 of the rear extension beam 3 are respectively designed with through holes. After the hydraulic pipeline on the left side comes out of the H frame 1, it passes through the through hole 3011 on the left cover plate 301 and then enters the through hole 3041 on the left front impact plate 304, and then connects to the reducer on the left travel system 4.

[0065] After the right hydraulic line comes out of the H frame 1, it passes through the through hole 3021 on the right cover plate 302 and then enters the through hole 3031 on the left and right front impact plates 303, and then connects to the reducer on the left travel system 4.

[0066] During adaptive adjustments, the left main connecting plate 214 of the front extension beam 2 is connected to the left front connecting plate 401 of the left travel system 4, and the right main connecting plate 211 of the front extension beam 2 is connected to the right front connecting plate 501 of the right travel system 5. The rear extension beam 3 is installed in the opposite direction to the front extension beam 2, and the two are placed symmetrically. The rear extension beam 3 is correspondingly connected to the left rear connecting plate 402 of the left travel system 4 and the right rear connecting plate 502 of the right travel system 5, forming a stable extended travel platform system.

[0067] The H-frame is installed at a 90-degree angle compared to normal operating conditions. The mounting plates at the four corners of the H-frame connect with the corresponding connecting plates on the front extension beam 2 and the rear extension beam 3, thereby achieving overall adaptive adjustment. The adjusted equipment has a larger track gauge, higher stability, and higher ground clearance, resulting in better maneuverability.

[0068] In summary, this invention discloses an extendable and adaptable engineering machinery walking system, which can be extended and adjusted in height and width directions according to actual working conditions. To adapt to height and width requirements, the H-frame, left walking system, and right walking system are connected by front and rear extension beams, forming sufficient passage space and good visibility. The front extension beams are fixed to the front connecting plates of the left and right walking systems, respectively, and the rear extension beams are fixed to the rear connecting plates of the left and right walking systems, respectively, forming a stable extended walking platform system. The H-frame is connected to the upper connecting plates of the front and rear extension beams and fixed to the extended walking platform. After adjustment, the entire system has higher stability, passability, and adaptability. This invention is designed as multiple independent systems with a simple structure and no redundant connections between them, which is more conducive to rapid adaptation to different working conditions, maximizing market demand and reducing service costs.

[0069] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0070] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0071] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An extended and adaptable walking system for engineering machinery, characterized in that, include: The extended walking platform system includes: Left-hand drive system and right-hand drive system; The front extension beam is fixed at both ends to the front connecting plates of the left and right travel systems, respectively. The rear extension beam is fixed at both ends to the rear connecting plates of the left and right travel systems, respectively. The H-frame has its front end fixed to the connecting plate on the front extension beam and its rear end fixed to the connecting plate on the rear extension beam. The front extension beam and the rear extension beam have the same overall structure; the front extension beam has a box-type structure, including: The top part has a symmetrical structure and consists of multiple cover plates and connecting plates of varying thicknesses. The bottom part has a symmetrical structure and consists of multiple base plates and connecting plates of varying thicknesses. The windshield section has a symmetrical structure and consists of multiple front impact plates; The main support structure, installed between the top, bottom and front sections, consists of multiple box structures of varying sizes; The main support structure includes a middle main box, a left box, and a right box; The left side box is formed by a left main support plate, a left support plate, a left main support plate, a left cover plate, and a left side support plate; The right-side box body is formed by the right main support plate, the right support plate, the right main support plate, the right cover plate, and the right support plate; The middle main body is formed by the left main plate, the right main plate, the top part, the bottom part, and the front section; Multiple vertical stiffening plates are provided in the intermediate main box body; The thickness of the left main support plate is greater than that of the left support plate. The thickness of the two plates is gradually reduced by a large chamfer. K-type grooves are opened on each plate to naturally form a double V groove weld. The thickness of the right main support plate is greater than that of the right support plate. The thickness of the two plates is gradually reduced by a large chamfer. K-type bevels are opened on each plate to naturally form a double V-bevel weld. The right support plate overlaps the right main plate, naturally forming a V-shaped groove weld; the left support plate overlaps the left main plate, naturally forming a V-shaped groove weld.

2. The adaptable and flexible engineering machinery walking system according to claim 1, characterized in that: The top portion includes a right cover plate, a left cover plate, a middle cover plate, a right connecting plate, and a left connecting plate; The right cover plate and the left cover plate are located at the far sides of the top, the middle cover plate is located at the center of the front extension beam, the right connecting plate is located between the middle cover plate and the right cover plate, and the left connecting plate is located between the middle cover plate and the left cover plate. The H-frame is connected to the right connecting plate and the left connecting plate, and the surfaces of the two connecting plates that mate with the H-frame are on the same plane.

3. The adaptable engineering machinery walking system according to claim 2, characterized in that: The thickness of the right connecting plate and the left connecting plate is greater than that of the right cover plate, the left cover plate and the middle cover plate; The right and left connecting plates are provided with multiple threaded holes for connecting to the H-frame; The right connecting plate, the right cover plate, and the middle cover plate achieve a thickness reduction transition through a large chamfer, and K-type bevels are opened at their joints to naturally form a double V-bevel weld. The left connecting plate, left cover plate, and middle cover plate achieve a thickness reduction transition through a large chamfer, and K-shaped grooves are opened at their joints to naturally form a double V groove weld.

4. The adaptable and flexible walking system for engineering machinery according to claim 1, characterized in that: The bottom portion includes a right bottom plate, a left bottom plate, a right main connecting plate, and a left main connecting plate; The right main connecting plate and the left main connecting plate are located on both sides of the front extension beam, and the right bottom plate and the left bottom plate are located between the right main connecting plate and the left main connecting plate; The right main connecting plate is connected to the right travel system, and the left main connecting plate is connected to the left travel system. The two surfaces of the two main connecting plates that cooperate with the left and right travel systems are kept on the same plane.

5. The adaptable engineering machinery walking system according to claim 4, characterized in that: The thickness of the right main connecting plate and the left main connecting plate is greater than that of the right bottom plate and the left bottom plate; The right main connecting plate and the left main connecting plate are provided with multiple through holes for connecting the left and right walking systems; The left and right base plates are respectively provided with K-shaped bevels at their joints, naturally forming a double V-groove weld; the right main connecting plate and the right base plate achieve a thickness reduction transition through a large chamfer, and K-shaped bevels are respectively provided at their joints, naturally forming a double V-groove weld; the left main connecting plate and the left base plate achieve a thickness reduction transition through a large chamfer, and K-shaped bevels are respectively provided at their joints, naturally forming a double V-groove weld.

6. The adaptable engineering machinery walking system according to claim 1, characterized in that: The left cover plate, right cover plate, right front impact plate and left front impact plate on the rear extension beam are respectively provided with through holes.

7. A vehicle, characterized in that: The machine is equipped with the extended and adaptable engineering machinery walking system as described in any one of claims 1 to 6.

8. An adjustment method for an extended adaptive engineering machinery walking system according to any one of claims 1 to 6, characterized in that: The left main connecting plate of the front extension beam is connected to the left front connecting plate of the left travel system, and the right main connecting plate of the front extension beam is connected to the right front connecting plate of the right travel system. The rear extension beam is installed in the opposite direction to the front extension beam, and the two are placed symmetrically. The rear extension beam is connected to the left rear connecting plate of the left travel system and the right rear connecting plate of the right travel system to form a stable extension travel platform system. The mounting plates at the four corners of the H-frame are respectively connected to the corresponding connecting plates on the front and rear extension beams, thereby achieving the overall adaptive adjustment.

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