一种履带行走机构、底盘及履带式工程机械
By adopting a combination of heavy-duty and standard track rollers in tracked engineering machinery and optimizing the track roller position according to the load distribution, the problem of track roller layout being unable to balance reliability and economy is solved, resulting in cost reduction and simplified installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CATERPILLAR SARL
- Filing Date
- 2025-09-30
- Publication Date
- 2026-07-17
AI Technical Summary
The existing tracked construction machinery has failed to make reasonable arrangements of the support rollers according to the load conditions at different positions of the whole machine, resulting in the inability to balance the reliability and economy of the support rollers.
A combination layout of heavy-duty and standard track rollers is adopted. The heavy-duty track rollers are placed in the heavy load positions and the standard track rollers are placed in the light load positions according to the overall load distribution. The tread height of both is kept consistent when they are installed on the frame to achieve interchangeability and assemblability.
While ensuring the reliability of the track rollers, it reduces the overall cost of the machine, simplifies the installation process, and is applicable to a variety of tracked construction machinery.
Smart Images
Figure CN224511283U_ABST
Abstract
Claims
1. A tracked traveling mechanism, comprising a frame, tracks, and track rollers; characterized in that, The support roller includes: Heavy-duty track rollers are arranged at the locations of heavy loads according to the overall load distribution of the machine, including a tread that rolls on the track and an end cap that remains stationary, the upper surface of which is mounted on the frame. The standard track roller is positioned in a lightly loaded location according to the overall load distribution of the machine. It includes a tread that rolls on the track and an end cap that remains stationary. The upper surface of the end cap is mounted on the frame. The heavy-duty track roller has a higher load-bearing capacity than the standard track roller, and the height from the upper surface of the end cap of the heavy-duty track roller to the lowest point of the tread of the heavy-duty track roller is equal to the height from the upper surface of the end cap of the standard track roller to the lowest point of the tread of the standard track roller.
2. The track according to claim 1, characterized in that The tread diameter of the heavy-duty track roller is configured to be larger than that of the standard track roller, so that the heavy-duty track roller has a higher load-bearing capacity than the standard track roller.
3. The tracked walking mechanism according to claim 2, characterized in that, All standard track rollers have the same tread diameter; Different heavy-duty support rollers are configured with tread diameters to meet load-bearing requirements based on the actual load conditions at their installation locations.
4. The track of claim 1, wherein, The heavy-duty track rollers have higher load-bearing capacity than standard track rollers by using different manufacturing materials, structural designs, or heat treatment processes.
5. The tracked walking mechanism according to any one of claims 1 to 4, characterized in that, The frame extends forward and backward along the vehicle's direction of travel, and multiple support rollers are mounted side-by-side from front to back on the bottom of the frame; wherein, One or two support rollers located on the front and rear sides are the heavy-duty support rollers, and the remaining support rollers are the standard support rollers; or... One or two support rollers located at the front, rear, and middle positions are heavy-duty support rollers, while the remaining support rollers are standard support rollers.
6. The tracked traveling mechanism according to any one of claims 1 to 4, characterized in that, The support roller has multiple coaxial segments with different diameters along its axial direction; the middle segment has the smallest diameter; the two sides of the middle segment are tread segments with increasing diameters, forming the treads; flanges are formed on the outer sides of the two tread segments, and the diameter of the flanges is larger than the diameter of the treads. The track includes track plates and track chains, the tread of the track roller rolls on the track chain, and the track chain is located between the two flange faces of the track roller.
7. The tracked walking mechanism according to claim 6, characterized in that, The frame has two parallel, spaced-apart crossbeams, the distance between which is adapted to the axial width of the support wheel. An end cap is disposed on the outer side of each of the two flange faces of the support roller, and the upper surface of the two end caps is respectively mounted on the two crossbeams of the frame.
8. The track according to claim 7, characterized in that An axle hole is provided on the wheel body of the support roller, and an axle that passes through the wheel body is installed in the axle hole. The axle remains stationary, and the wheel body rotates around the axle. The two end caps are installed on the axle.
9. A chassis comprising a chassis base, characterized in that A set of track walking mechanisms as claimed in any one of claims 1 to 8 is mounted on opposite sides of the chassis base.
10. A tracked engineering machine, characterized in that, A chassis comprising a chassis base as claimed in claim 9.