Road paver continuous track unit with multilayer structure

The paver track device, designed with multi-layer structural units, solves the problem of difficult disassembly and assembly in existing technologies, enabling convenient installation and maintenance, improving the load-bearing capacity and reliability of the track device, and reducing maintenance costs.

WO2026091332A1PCT designated stage Publication Date: 2026-05-07XCMG CONSTRUCTION MACHINERY CO LTD ROAD MACHINERY BRANCH
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
XCMG CONSTRUCTION MACHINERY CO LTD ROAD MACHINERY BRANCH
Filing Date
2025-02-13
Publication Date
2026-05-07

AI Technical Summary

Technical Problem

Existing paver track systems frequently malfunction during use, are difficult to disassemble and assemble, and require complete replacement, which affects construction efficiency and increases costs.

Method used

It adopts a multi-layer structural unit design, with the main support beam being a double-layer frame. The inner and outer frames are respectively connected to the main frame, guide device, and support wheel assembly. The drive wheel hub is designed to be separate, and each component is installed independently, which facilitates disassembly and maintenance.

Benefits of technology

It improves the load-bearing capacity and reliability of the tracked device, simplifies the installation and maintenance process, reduces maintenance costs, and enhances the overall performance and usability of the device.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN2025077117_07052026_PF_FP_ABST
    Figure CN2025077117_07052026_PF_FP_ABST
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Abstract

A road paver continuous track unit with a multilayer structure, wherein a main support beam (1) serves as a main load-bearing structure of a double-layer frame, an inner frame is connected to a main frame (2), a guiding apparatus (3) is mounted at a front section of an outer frame, the guiding apparatus (3) is connected to a continuous track (5), a carrier roller assembly (4) is mounted at a lower middle section of the outer frame, and a rear portion of the main support beam (1) is connected to a drive connection unit (6), a drive wheel hub or drive sprocket teeth (9), wherein the drive wheel hub comprises a separated inner-drive wheel hub (7) and an outer-drive wheel hub (8). The road paver continuous track unit with a multilayer structure adopts a multilayer structural unit configuration that is mutually independent, and facilitates easy installation, disassembly, and subsequent maintenance.
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Description

A multi-layer track device for a paver Technical Field

[0001] This invention relates to the field of pavers, and more particularly to a multi-layer tracked device for pavers. Background Technology

[0002] In recent years, with the increase in highway construction projects, the use of road pavers equipped with tracked drive devices has also increased. Tracked devices are the key to the movement and drive of engineering vehicles. With the continuous growth in the application of tracked devices, the number of fault reports has also increased, which has seriously affected their service life. After the components are damaged, they cannot be replaced quickly, and disassembly and replacement are difficult. In severe cases, the entire tracked device needs to be replaced, which seriously affects construction and increases application costs.

[0003] Therefore, it is necessary to develop new track devices for pavers to improve product performance, facilitate installation, disassembly and subsequent maintenance, and reduce costs. Summary of the Invention

[0004] Purpose of the invention: In view of the shortcomings and defects of the prior art, the present invention provides a multi-layer structure track device for a paver, which adopts a multi-layer structural unit form, which is independent of each other, and is convenient for installation, disassembly and subsequent maintenance.

[0005] Technical solution: The present invention provides a multi-layer tracked device for a paver, characterized in that: the main support beam is used as the main load-bearing structure of a double-layer frame, the inner frame is connected to the main frame, the outer frame is equipped with a guide device at the front, the guide device is connected to the track, the lower middle part of the outer frame is equipped with a support roller group, and the rear part of the main support beam is connected to the drive connection unit, drive hub or drive gear; the drive hub includes a separate inner drive hub and an outer drive hub.

[0006] The main support beam is connected to the main frame by a number of bolts.

[0007] The rear part of the main support beam is connected to the drive connection unit by several bolts.

[0008] A hydraulic system is installed inside the frame on the inner side of the main support beam.

[0009] The support roller assembly has two or more sets, and each set of rollers and drive device is installed separately on the main support beam.

[0010] The separate inner drive hub and outer drive hub are respectively connected to the drive connection unit; the drive connection unit provides driving force, which drives the track to rotate through the drive hub.

[0011] The main support beam is connected to the main frame as the first layer structure; the drive connection unit and the separate inner drive hub are connected to the main support beam as the second layer structure; and the outer drive hub is connected to the drive connection unit as the third layer structure.

[0012] The guide device and support roller assembly are connected to the main support beam as a second layer structure; the outer wheels of the guide device and support roller assembly are connected to the main support beam as a third layer structure.

[0013] The track can be connected to the main support beam after the second layer structure is connected, and then the third layer structure is connected.

[0014] Paver using the multi-layer tracked device of the present invention.

[0015] Beneficial Effects: Compared with existing technologies, this invention has the following significant advantages: This invention adopts a multi-layered structural unit form, resulting in strong main load-bearing capacity, multi-layered functional distribution, and mutual independence, thereby improving load-bearing capacity and facilitating installation, disassembly, and subsequent maintenance. It adapts to different working conditions, improves the overall performance and reliability of the tracked device, reduces vehicle maintenance costs, ensures normal machine operation, and enhances the usability of the tracks. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the structure of the present invention;

[0017] Figure 2 is a schematic diagram of the structure of the present invention;

[0018] Figure 3 is a schematic diagram of the main support beam of the present invention;

[0019] Figure 4 shows the initial installation diagram of the present invention;

[0020] Figure 5 is an installation diagram of the drive connection unit of the present invention;

[0021] Figure 6 is an installation diagram of the split internal drive hub of the present invention;

[0022] Figure 7 is an installation diagram of the track of the present invention;

[0023] Figure 8 is an installation diagram of the outer wheel of the guide device of the present invention, the outer wheel of the support wheel assembly, and the outer drive wheel hub;

[0024] In the diagram, 1 is the main support beam; 2 is the main frame; 3 is the guide device; 4 is the support roller assembly; 5 is the track; 6 is the drive connection unit; 7 is the separate inner drive hub; 8 is the outer drive hub; and 9 is the drive gear. Detailed Implementation

[0025] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] The paver multi-layer track device of the present invention uses a main support beam 1 as the main load-bearing structure of a double-layer frame. The inner frame is connected to the main frame 2, and a guide device 3 is installed at the front of the outer frame, which is connected to the track 5. A support roller assembly 4 is installed at the lower middle part of the outer frame. The rear of the main support beam 1 is connected to a drive connection unit 6 and a drive hub or drive gear 9. The drive hub includes a separate inner drive hub 7 and an outer drive hub 8. The main support beam 1 is connected to the main frame 2 by several bolts. The rear of the main support beam 1 is connected to the drive connection unit 6 by several bolts. A hydraulic system is installed inside the inner frame of the main support beam 1. There are two or more sets of support roller assemblies 4, and each set of rollers and drive device are installed separately on the main support beam 1, making each part independent and easy to disassemble and assemble. The separate inner drive hub 7 and outer drive hub 8 are respectively connected to the drive connection unit 6; the drive connection unit 6 provides driving force, which drives the track 5 to rotate through the drive hub, providing the walking function.

[0027] The drive hub of this invention adopts a split hub, and its unique design and mounting structure ensure the convenience and practicality of the device. The main support beam 1 is a double-layer box frame with a rear drive connection offset structure. The outer side is the main load-bearing frame, the middle and rear part is the main structure for mounting the support wheel assembly 4, and the front part is the main structure for mounting the guide device 3. The inner frame is responsible for connecting to the main frame 2 and houses the hydraulic system. The rear mounting plate is responsible for connecting to the main frame 2 and the drive wheel assembly. This unique structural design ensures the device's load-bearing capacity and multi-zone functional distribution. In addition to the inner and outer drive hubs connecting to the drive unit, the rear drive can also be designed with drive teeth 9 to replace the inner and outer drive hubs connecting to the drive unit.

[0028] As shown in Figure 4-8, the main support beam 1 is connected to the main frame 2 as the first layer structure; the drive connection unit 6 and the separate inner drive hub 7 are connected to the main support beam 1 as the second layer structure; the outer drive hub 8 is connected to the drive connection unit 6 as the third layer structure. The guide device 3 and the support roller assembly 4 (only the beam connecting the guide device 3 and the support roller assembly 4 is connected here, and the outer wheels are not connected yet) are connected to the main support beam 1 as the second layer structure; the outer wheels of the guide device 3 and the support roller assembly 4 are connected to the main support beam 1 as the third layer structure. The track 5 can be connected to the main support beam 1 after the second layer structure is connected, and then the third layer structure is connected.

[0029] This invention employs a multi-layered structural unit design, resulting in strong main load-bearing capacity. It achieves multi-layered functional distribution with independent components, enhancing load-bearing capacity and facilitating installation, disassembly, and subsequent maintenance. Adaptable to various working conditions, it improves the overall performance and reliability of the tracked device, reducing vehicle maintenance costs; ensuring normal machine operation; and maximizing the usability of the tracks.

Claims

1. A multi-layer tracked device for a paver, characterized in that: The main support beam (1) is the main load-bearing structure of the double-layer frame. The inner frame is connected to the main frame (2). The guide device (3) is installed at the front of the outer frame. The guide device (3) is connected to the track (5). The support roller group (4) is installed at the lower middle part of the outer frame. The rear part of the main support beam (1) is connected to the drive connection unit (6), drive hub or drive tooth (9). The drive hub includes a separate inner drive hub (7) and an outer drive hub (8).

2. The multi-layer tracked device for a paver according to claim 1, characterized in that: The main support beam (1) is connected to the main frame (2) by several bolts.

3. The multi-layer tracked device for a paver according to claim 1, characterized in that: The rear part of the main support beam (1) is connected to the drive connection unit (6) by several bolts.

4. The multi-layer tracked device for a paver according to claim 1, characterized in that: A hydraulic system is installed inside the frame on the inner side of the main support beam (1).

5. The multi-layer tracked device for a paver according to claim 1, characterized in that: The support roller assembly (4) is provided with two or more sets, and each set of rollers and drive device is installed separately on the main support beam (1).

6. The multi-layer tracked device for a paver according to claim 1, characterized in that: The separate inner drive hub (7) and outer drive hub (8) are respectively connected to the drive connection unit (6); the drive connection unit (6) provides driving force, and the drive hub drives the track (5) to rotate.

7. The multi-layer tracked device for a paver according to claim 1, characterized in that: The main support beam (1) is connected to the main frame (2) as the first layer structure; the drive connection unit (6) and the split inner drive hub (7) are connected to the main support beam (1) as the second layer structure; the outer drive hub (8) is connected to the split inner drive hub (7) to the drive connection unit (6) as the third layer structure.

8. The multi-layer tracked device for a paver according to claim 7, characterized in that: The guide device (3) and the support roller group (4) are connected to the main support beam (1) as the second layer structure; the outer wheels of the guide device (3) and the support roller group (4) are connected to the main support beam (1) as the third layer structure.

9. The multi-layer tracked device for a paver according to claim 8, characterized in that: The track (5) can be connected to the main support beam (1) after the second layer structure is connected, and then the third layer structure is connected.

10. A paver using the multi-layer tracked device according to any one of claims 1-9.

Citation Information

Patent Citations

  • Rocker type suspension track for spreading machine

    CN105109567A

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    CN112874644A

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