Excavator moving frame with brake

By designing a mobile chassis for excavators with brakes, the chassis components support the excavator tracks and are towed by a tractor, solving the problem of slow walking speed of tracked excavators and achieving the effects of rapid and efficient change of construction sites and protection of road surfaces.

CN121246670APending Publication Date: 2026-01-02JINING KARJIE MACHINERY MANUFACTURING CO LTD
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Patent Information

Application Number
CN202511657447.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-13
Publication Date
2026-01-02

AI Technical Summary

Technical Problem

Excavators with tracked tracks have a slow travel speed, making it difficult to quickly and efficiently change construction sites, and the tracks are prone to damaging the road surface when traveling on ordinary roads.

Method used

Design a mobile excavator chassis with brakes. The chassis components support the excavator tracks, and the excavator is towed by a tractor. Combined with the braking system, it enables rapid transfer and protects the road surface.

Benefits of technology

It enables rapid and efficient relocation of excavators, protects the road surface from damage, improves construction efficiency, enhances road surface quality, and increases construction flexibility.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

An excavator moving frame with a brake comprises at least two sets of frame assemblies. Each frame assembly comprises a bearing part, the bearing parts in the at least two sets of frame assemblies are matched to support the excavator, and the bearing parts make contact with a crawler belt of the excavator; the moving part is connected with the bearing part and is used for moving the bearing part; the excavator is driven to the upper side by using the excavator transfer frame to be used as traction by an engineering vehicle, so that rapid and efficient transfer is carried out, the road surface is protected, and the construction efficiency is higher and more flexible.
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Description

Technical Field

[0001] This invention relates to the field of excavator technology, and more specifically to a mobile excavator chassis with brakes. Background Technology

[0002] Currently, engineering construction remains a vital part of China's economic development. Engineering development is the lifeblood of the national economy, playing a significant role in the country's economic growth. However, because excavators are tracked vehicles, their travel speed is relatively slow and their mobility is low. In specific construction projects requiring machinery operation, due to scheduling constraints, excavators cannot quickly and efficiently relocate to distant work sites. Furthermore, ordinary roads cannot withstand the high strength and heavy weight of excavator tracks, easily leading to damage and disruption of the road surface. Summary of the Invention

[0003] One advantage of this invention is that it provides a mobile excavator chassis with brakes. The excavator can be driven onto the chassis and a construction vehicle can be used as a tow vehicle for fast and efficient transfer, thereby protecting the road surface and making construction more efficient and flexible.

[0004] To achieve at least one of the above advantages of the present invention, the present invention provides a mobile excavator chassis with brakes, comprising no less than two chassis assemblies; The frame components include The load-bearing section, in at least two sets of frame assemblies, cooperates to support the excavator, and the load-bearing section contacts the excavator's tracks; A movable part, which is connected to the supporting part to move the supporting part.

[0005] According to an embodiment of the present invention, the load-bearing part includes a frame, the frame includes a bottom plate, side plates are fixedly provided on the left and right sides of the bottom plate, and front end plate and rear end plate are fixedly provided at the front and rear ends of the bottom plate. The front end plate, rear end plate and the two side plates are fixedly connected to each other and together with the bottom plate form a frame structure. The height of the front endplate is the same as the thickness of the base plate, and the upper edge of the front endplate is on the same horizontal plane as the upper edge of the base plate. The height of the rear end plate is the same as the height of the side plate, and the upper edge of the rear end plate and the upper edge of the side plate are on the same horizontal plane. It also includes two inclined stiffeners that extend along the bottom plate, with the two sides of the inclined stiffeners fixedly connected to the side plate and the bottom plate, respectively.

[0006] According to one embodiment of the present invention, a plurality of anti-slip strips are uniformly provided on the upper part of the base plate, and the anti-slip strips are perpendicular to the extension direction of the base plate; Several lower stiffening plates are fixedly installed on the lower part of the base plate, and a sealing plate is also fixedly installed on the lower part of the base plate. The sealing plate, the base plate, the rear sealing plate, the front sealing plate and the two side plates form a closed space, and the lower stiffening plates are located inside the closed space.

[0007] According to an embodiment of the present application, the moving part comprises an axle mounted on the outer side of the side plate, a wheel rib plate is arranged between the side plate and the axle for strengthening the structural strength, a connecting disc is arranged on the axle in a rotatable manner, a hub is mounted on the connecting disc and rotates synchronously with the connecting disc, and a tire is mounted on the outside of the hub.

[0008] According to an embodiment of the present application, a brake disc is also mounted on the connecting disc and rotates synchronously with the connecting disc, a caliper is fixedly arranged on the axle, and the brake disc is located inside the caliper, and braking is realized through the action of the caliper.

[0009] According to an embodiment of the present application, a cleaning part for removing stones and mud on the tires is also fixedly mounted on the front side of the side plate.

[0010] According to an embodiment of the present application, the cleaning part comprises a side support plate fixedly connected with the side plate, and a mud removing plate is fixedly mounted on the rear side of the side plate and extends rearward to a position between the two tires.

[0011] According to an embodiment of the present application, the cleaning part further comprises a pressing plate located on the upper part of the side support plate, and the lower part of the pressing plate is fixedly connected with the side support plate and the mud removing plate.

[0012] According to an embodiment of the present application, the cleaning part further comprises a side support plate rib plate located on the front part of the side support plate, and the side support plate rib plate is fixedly connected with the side plate and the side support plate.

[0013] According to an embodiment of the present application, the cleaning part further comprises a small rib plate located on the rear side of the side support plate, and the small rib plate is fixedly connected with the side support plate and the mud removing plate. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Structure of the present application Figure 1 ; Figure 2 Structure of the present application Figure 2 ; Figure 3 Structure of the present application Figure 3 ; Figure 4 Structure of the present application In the drawings: 1, tire, 2, traction ring, 3, bottom plate, 4, anti-skid strip, 5, rear blocking plate, 6, mud removing plate, 7, pressing plate, 8, side support plate, 9, side support plate rib plate, 10, inclined rib plate, 11, front blocking plate, 12, side plate, 13, connecting disc, 14, brake caliper, 15, wheel rib plate, 16, axle, 17, brake disc, 18, small rib plate, 19, lower rib plate. DETAILED DESCRIPTION

[0015] For the purposes of making the objects, technical solutions and advantages of the present application clearer, the following will combine the drawings of the present application to make a more thorough and complete description of the present application. Figure 1 The drawings Figure 4 The present application will be described in more detail.

[0016] The following description is provided to enable those skilled in the art to implement the present application. The preferred embodiments in the following description are only examples and other obvious modifications can be made by those skilled in the art. The basic principles defined in the following description can be applied to other embodiments, modifications, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present application.

[0017] Those skilled in the art should understand that in the disclosure of the specification, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the above terms cannot be understood as a limitation on the present application.

[0018] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0019] The application provides a mobile frame with a brake excavator, comprising not less than two groups of frame components; the frame components comprise a bearing part, the bearing parts in the at least two groups of frame components cooperate to hold up the excavator, the bearing part is in contact with the track of the excavator; a moving part connected with the bearing part for moving the bearing part; the bearing part comprises a frame, the frame comprises a bottom plate 3, the left and right sides of the bottom plate 3 are fixedly provided with side plates 12, the front and rear ends of the bottom plate 3 are fixedly provided with a front baffle plate 11 and a rear baffle plate 5, the front baffle plate 11, the rear baffle plate 5 and the two side plates 12 are fixedly connected with each other and the bottom plate 3 to form a frame structure; the height of the front baffle plate 11 is the same as the thickness of the bottom plate 3, and the upper edge of the front baffle plate 11 and the upper edge of the bottom plate 3 are located on the same horizontal plane; the height of the rear baffle plate 5 is the same as the height of the side plate 12, and the upper edge of the rear baffle plate 5 and the upper edge of the side plate 12 are located on the same horizontal plane; further comprising two inclined rib plates 10 arranged along the extension direction of the bottom plate 3, the two sides of the inclined rib plate 10 are fixedly connected with the side plate 12 and the bottom plate 3 respectively; the upper part of the bottom plate 3 is uniformly provided with a plurality of anti-skid strips 4, the anti-skid strips 4 are perpendicular to the extension direction of the bottom plate 3; the lower part of the bottom plate 3 is fixedly provided with a plurality of lower rib plates 19, and the lower part of the bottom plate 3 is further fixedly provided with an enclosing plate, the enclosing plate, the bottom plate 3, the rear baffle plate 5, the front baffle plate 11 and the two side plates 12 enclose a closed space, and the lower rib plate 19 is located inside the closed space; the moving part comprises an axle 16 mounted on the outer side of the side plate 12, a wheel rib plate 15 for strengthening the structural strength is further arranged between the side plate 12 and the axle 16, the axle 16 is provided with a connecting disc 13 in a freely rotatable manner, the connecting disc 13 is provided with a hub that rotates synchronously therewith, and a tire 1 is mounted outside the hub; the connecting disc 13 is further provided with a brake disc 17 that rotates synchronously therewith, the axle 16 is fixedly provided with a caliper 14, the brake disc 17 is located inside the caliper 14, and braking is realized through the action of the caliper 14; the front side of the side plate 12 is further fixedly provided with a debris removal part for removing stones and soil on the tire 1; the debris removal part comprises a side branch plate 8 fixedly connected with the side plate 12, a mud removal plate 6 is fixedly mounted on the rear side of the side plate 12, and the mud removal plate 6 extends rearward to a position between the two tires 1; the debris removal part further comprises a pressing plate 7, the pressing plate 7 is located on the upper part of the side branch plate 8, and the lower part of the pressing plate 7 is fixedly connected with the side branch plate 8 and the mud removal plate 6; the debris removal part further comprises a side branch plate rib plate 9, the side branch plate rib plate 9 is located on the front part of the side branch plate 8, and the side branch plate rib plate 9 is fixedly connected with the side plate 12 and the side branch plate 8; the debris removal part further comprises a small rib plate 18, the small rib plate 18 is located on the rear side of the side branch plate 8, and the small rib plate 18 is fixedly connected with the side branch plate 8 and the mud removal plate 6.

[0020] The first embodiment of the application is as follows: The application discloses a movable frame for a brake-equipped excavator, which comprises at least two frame assemblies for supporting two tracks of the excavator, and the excavator can be supported and then towed by a towing vehicle. In use, the two frame assemblies are first placed in order according to the interval of the tracks, and then the excavator is slowly placed on the frame assemblies. The excavator is towed by the towing vehicle after being placed on the frame assemblies. Specifically, the tracks of the excavator are located on the frame assemblies, the bucket of the excavator is placed in the bucket of the towing vehicle through a rope or a fixing tool, the angle between the movable arm and the body of the excavator is fixed, three-point support is formed to make the excavator leave the ground, and the excavator is towed by the towing vehicle.

[0021] The frame assembly comprises a bearing part, and the bearing parts of the at least two frame assemblies cooperate to support the excavator, and the bearing part is in contact with the tracks of the excavator. The bearing part is made of steel plates and has high strength. The bearing part comprises a frame, and the frame comprises a bottom plate 3, left and right side plates 12 fixedly arranged on the left and right sides of the bottom plate 3, a front baffle plate 11 and a rear baffle plate 5 fixedly arranged at the front end and the rear end of the bottom plate 3, and the front baffle plate 11, the rear baffle plate 5 and the two side plates 12 are fixedly connected with each other and the bottom plate 3 to form a frame structure. The front end of the side plate 12 is provided with a towing ring 2 for hanging a rope or the like, so that the connection between the excavator and the frame assembly is strengthened. In one use mode, one end of the rope is bound to the excavator, and the other end is bound to the towing ring 2.

[0022] Further, the bottom plate 3 is located at the middle position of the side plate 12, that is, the upper part and the lower part of the side plate 12 extend upwards or downwards, the height of the front baffle plate 11 is the same as the thickness of the bottom plate 3, the upper edge of the front baffle plate 11 is located on the same horizontal plane as the upper edge of the bottom plate 3, the lower part of the front baffle plate 11 protrudes from the bottom plate 3 to form a front end sealing, the height of the rear baffle plate 5 above is the same as the height of the side plate 12, and the upper edge of the rear baffle plate 5 is located on the same horizontal plane as the upper edge of the side plate 12, so that the rear baffle plate 5 can limit the tracks of the excavator above and the excavator cannot move any more when the rear baffle plate 5 is located above the tracks. The depth of the rear baffle plate 5 below is the same as the depth of the lower rib plate 19 of the bottom plate 3, and the sealing plate, the bottom plate 3, the rear baffle plate 5, the front baffle plate 11 and the two side plates 12 form a closed space, and the lower rib plate 19 is located in the closed space, so that the structural integrity and strength of the whole are improved, and the excavator can be driven onto the bearing part without causing deformation of the whole.

[0023] The frame assembly further comprises two inclined rib plates 10 arranged along the extension direction of the bottom plate 3, and the two sides of the inclined rib plate 10 are fixedly connected with the side plate 12 and the bottom plate 3, so that the structural strength of the whole is strengthened and the side plate 12 is prevented from tearing to the two sides.

[0024] The upper portion of the bottom plate 3 is uniformly provided with a plurality of anti-skid strips 4, which are perpendicular to the extension direction of the bottom plate 3 and can be matched with the grooves on the track to achieve anti-skid, which is specifically that the anti-skid strips 4 can be clamped into the inside of the grooves on the track.

[0025] When the excavator is opened to the upper part of the bearing part, the excavator can be transferred by the moving part, the moving part includes an axle 16 installed on the outer side of the side plate 12, a wheel rib plate 15 is further arranged between the side plate 12 and the axle 16 for strengthening the structural strength, and a fixing disc is arranged on the inner side of the axle 16 for preventing the axle 16 from rotating, the axle 16 is rotatably arranged with a connecting disc 13 through bolt fixation, a hub is installed on the connecting disc 13 and rotates synchronously with the connecting disc 13, a double-row tire 1 is installed on the outside of the hub, the hub is connected with the connecting disc 13 through a hub bolt, and the connecting disc 13 is connected with the axle 16 through a hub bearing inside the connecting disc 13 and can rotate.

[0026] The front side of the side plate 12 is further fixedly installed with a debris removal part for removing the ballast and soil on the tire 1, the debris removal part includes a side branch plate 8 fixedly connected with the side plate 12, a mud removal plate 6 is fixedly installed on the rear side of the side plate 12 and extends to the position between the two tires 1 in the rear direction, during driving, the mud removal plate 6 is located between the two rows of tires 1 and can peel off and remove the soil and ballast between the two rows of tires 1 by cooperating with the rotation of the tires 1.

[0027] In order to ensure the structural strength of the mud removal plate 6, a pressing plate 7, a side branch plate rib plate 9 and a small rib plate 18 are further arranged, the pressing plate 7 is located on the upper portion of the side branch plate 8, the lower portion of the pressing plate 7 is fixedly connected with the side branch plate 8 and the mud removal plate 6, the side branch plate rib plate 9 is located on the front portion of the side branch plate 8, the side branch plate rib plate 9 is fixedly connected with the side plate 12 and the side branch plate 8, and the small rib plate 18 is located on the rear side of the side branch plate 8, the small rib plate 18 is fixedly connected with the side branch plate 8 and the mud removal plate 6, so that the overall strength is improved.

[0028] Embodiment two of the present application is as follows: A movable frame of excavator with brake includes at least two frame assemblies for supporting two tracks of the excavator, and the excavator can be towed by a towing vehicle after being supported by the frame assemblies. In use, first, the two frame assemblies are placed in order according to the interval of the tracks, and then the tracks of the excavator are slowly opened on the frame assemblies. After the excavator is opened on the frame assemblies, the excavator is towed by the towing vehicle. Specifically, the tracks of the excavator are located on the frame assemblies, the bucket of the excavator is placed in the bucket of the towing vehicle in front through a rope or a fixing tool, the angle between the fixed arm and the body of the excavator is adjusted, three-point support is formed to make the excavator leave the ground, the excavator is towed by the towing vehicle, and the brake pipe is connected to a controllable position.

[0029] The frame assembly includes a bearing part, and the bearing parts of the at least two frame assemblies cooperate to support the excavator, and the bearing part is in contact with the track of the excavator. The bearing part is made by steel plate welding, ensuring high strength of the whole, and the bearing part comprises a frame, the frame comprising a bottom plate 3, the left and right sides of the bottom plate 3 being fixedly provided with side plates 12, the front and rear ends of the bottom plate 3 being fixedly provided with a front baffle plate 11 and a rear baffle plate 5, the front baffle plate 11, the rear baffle plate 5 and the two side plates 12 being fixedly connected with each other and the bottom plate 3 to form a frame structure together. The front end of the side plate 12 is provided with a towing ring 2, which can be hung with a rope or the like to strengthen the connection between the excavator and the frame assembly, and one of the uses is to bind one end of the rope with the excavator and the other end with the towing ring 2.

[0030] Further, the bottom plate 3 is located at the middle position of the side plate 12, that is, the upper and lower parts of the side plate 12 extend upward or downward, the height of the front baffle plate 11 is the same as the thickness of the bottom plate 3, and the upper edge of the front baffle plate 11 is located on the same horizontal plane as the upper edge of the bottom plate 3, and the lower part of the front baffle plate 11 protrudes from the bottom plate 3 to form a front end sealing; the height of the upper part of the rear baffle plate 5 is the same as the height of the side plate 12, and the upper edge of the rear baffle plate 5 is located on the same horizontal plane as the upper edge of the side plate 12, which can limit the position of the excavator track above, so that the excavator cannot move further when the rear baffle plate 5 moves with the excavator. The depth of the lower part of the rear baffle plate 5 is the same as that of the lower rib plate 19 of the lower part of the bottom plate 3, and the sealing plate, the bottom plate 3, the rear baffle plate 5, the front baffle plate 11 and the two side plates 12 form a closed space, and the lower rib plate 19 is located inside the closed space, which can improve the structural integrity and strength of the whole, and ensure that the deformation of the whole will not occur when the excavator moves to the upper part of the bearing part.

[0031] Further, the bottom plate 3 is located at the middle position of the side plate 12, that is, the upper and lower parts of the side plate 12 extend upward or downward, the height of the front baffle plate 11 is the same as the thickness of the bottom plate 3, and the upper edge of the front baffle plate 11 is located on the same horizontal plane as the upper edge of the bottom plate 3, and the lower part of the front baffle plate 11 protrudes from the bottom plate 3 to form a front end sealing; the height of the upper part of the rear baffle plate 5 is the same as the height of the side plate 12, and the upper edge of the rear baffle plate 5 is located on the same horizontal plane as the upper edge of the side plate 12, which can limit the position of the excavator track above, so that the excavator cannot move further when the rear baffle plate 5 moves with the excavator. The depth of the lower part of the rear baffle plate 5 is the same as that of the lower rib plate 19 of the lower part of the bottom plate 3, and the sealing plate, the bottom plate 3, the rear baffle plate 5, the front baffle plate 11 and the two side plates 12 form a closed space, and the lower rib plate 19 is located inside the closed space, which can improve the structural integrity and strength of the whole, and ensure that the deformation of the whole will not occur when the excavator moves to the upper part of the bearing part.

[0032] The upper part of the bottom plate 3 is uniformly provided with a plurality of anti-skid strips 4, which are perpendicular to the extension direction of the bottom plate 3, and can cooperate with the grooves on the track to achieve anti-skid, which is specifically manifested as that the anti-skid strips 4 can be clamped into the grooves on the track.

[0033] When the excavator moves to the upper part of the bearing part, the excavator can be transferred by the moving part, the moving part comprising an axle 16 installed on the outer side of the side plate 12, and a wheel rib plate 15 for strengthening the structural strength is further arranged between the side plate 12 and the axle 16, and a fixed disc is arranged on the inner side of the axle 16 to prevent the axle 16 from rotating, and the axle 16 is fixedly connected with the fixed disc by bolts, and a connecting disc 13 is arranged on the axle 16 in a freely rotatable manner, a hub is installed on the connecting disc 13 and rotates synchronously with the connecting disc 13, and a double-row tire 1 is installed on the outside of the hub, the hub is connected with the connecting disc 13 by hub bolts, and the connecting disc 13 is connected with the axle 16 by a hub bearing inside the connecting disc 13, and can rotate.

[0034] The connecting plate 13 is further provided with a brake disc 17 rotating synchronously with the connecting plate 13, and the axle 16 is fixedly provided with a caliper 14, and the brake disc 17 is located inside the caliper 14, and the brake is realized by the action of the caliper 14, and in use, the brake oil pipe of the brake system is connected with the towing vehicle, so that the brake system of the towing vehicle can be connected to realize synchronous braking.

[0035] The side plate 12 is further provided with a debris removal part for removing stones and soil on the tire 1, and the debris removal part comprises a side branch plate 8 fixedly connected with the side plate 12, and the rear side of the side plate 12 is fixedly provided with a mud removal plate 6, and the mud removal plate 6 extends rearward to a position between the two tires 1, and in driving, the mud removal plate 6 is located between the two rows of tires 1, and cooperates with the rotation of the tires 1 to strip and remove the soil and stones between the two rows of tires 1.

[0036] In order to ensure the structural strength of the mud removal plate 6, a pressing plate 7, a side branch plate rib plate 9 and a small rib plate 18 are further provided, the pressing plate 7 is located at the upper part of the side branch plate 8, the lower part of the pressing plate 7 is fixedly connected with the side branch plate 8 and the mud removal plate 6, the side branch plate rib plate 9 is located at the front part of the side branch plate 8, the side branch plate rib plate 9 is fixedly connected with the side plate 12 and the side branch plate 8, the small rib plate 18 is located at the rear side of the side branch plate 8, and the small rib plate 18 is fixedly connected with the side branch plate 8 and the mud removal plate 6, so as to improve the overall strength.

[0037] It should be noted that the terms "first", "second" and "third" in the present application are only used for description purposes, and do not represent any order, and cannot be understood as indicating or implying relative importance, and these terms can be interpreted as names.

[0038] Those skilled in the art should understand that the embodiments of the application shown in the above description and the drawings are only examples and do not limit the application. The advantages of the application have been fully and effectively realized. The functions and structural principles of the application have been shown and described in the embodiments, and the embodiments of the application can be modified or changed in any way without departing from the principles.

Claims

1. A mobile excavator chassis with brakes, characterized in that: Includes no fewer than two sets of frame components; The chassis assembly includes The load-bearing section, in at least two sets of frame assemblies, cooperates to support the excavator, and the load-bearing section contacts the excavator's tracks; A movable part, which is connected to the supporting part to move the supporting part.

2. The mobile excavator chassis with brakes according to claim 1, characterized in that: The load-bearing part includes a frame, the frame includes a bottom plate, side plates are fixedly provided on the left and right sides of the bottom plate, and front end plate and rear end plate are fixedly provided at the front and rear ends of the bottom plate. The front end plate, rear end plate and the two side plates are fixedly connected to each other and together with the bottom plate form a frame structure. The height of the front end plate is the same as the thickness of the bottom plate, and the upper edge of the front end plate and the upper edge of the bottom plate are on the same horizontal plane. The height of the rear end plate is the same as the height of the side plate, and the upper edge of the rear end plate and the upper edge of the side plate are on the same horizontal plane. It also includes two inclined stiffeners arranged along the extension direction of the base plate, with the two sides of the inclined stiffeners being fixedly connected to the side plate and the base plate, respectively.

3. The excavator mobile chassis with brakes according to claim 2, characterized in that: The upper part of the base plate is evenly provided with a number of anti-slip strips, and the anti-slip strips are perpendicular to the extension direction of the base plate; The bottom plate is fixedly provided with several lower stiffening plates, and the bottom plate is also fixedly provided with a sealing plate. The sealing plate, the bottom plate, the rear sealing plate, the front sealing plate and the two side plates form a closed space, and the lower stiffening plates are located inside the closed space.

4. The excavator mobile frame with brakes according to claim 2, characterized in that: The movable part includes an axle mounted on the outer side of the side plate. A wheel rib plate for strengthening the structure is also provided between the side plate and the axle. A connecting plate is provided on the axle in a freely rotatable manner. A wheel hub that rotates synchronously with the connecting plate is mounted on the connecting plate. A tire is mounted on the outside of the wheel hub.

5. The excavator mobile chassis with brakes according to claim 4, characterized in that: The connecting disc is also equipped with a brake disc that rotates synchronously with it, and a caliper is fixedly installed on the axle. The brake disc is located inside the caliper, and braking is achieved by the action of the caliper.

6. The excavator mobile chassis with brakes according to claim 4, characterized in that: The front side of the side plate is also fixedly equipped with a cleaning part for removing ballast and mud from the tires.

7. The excavator mobile chassis with brakes according to claim 6, characterized in that: The cleaning section includes a side support plate fixedly connected to the side plate, and a mud removal plate is fixedly installed on the rear side of the side plate, extending rearward to the position between the two tires.

8. The mobile excavator chassis with brakes according to claim 6, characterized in that: The cleaning section also includes a pressure plate, which is located above the side support plate, and the lower part of the pressure plate is fixedly connected to the side support plate and the mud removal plate.

9. The mobile chassis of the excavator with brakes according to claim 6, characterized in that: The cleaning section also includes a side support plate stiffener, which is located at the front of the side support plate and is fixedly connected to the side plate and the side support plate.

10. The excavator mobile chassis with brakes according to claim 6, characterized in that: The cleaning section also includes a small reinforcing plate, which is located behind the side support plate and is fixedly connected to the side support plate and the mud removal plate.