Dozer Blade Assembly With Overload Protection For Edge Leveling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing graders are not suitable for removing edge disturbances on paths, as they are designed only for leveling central surfaces and can be damaged by obstacles such as tree stumps or rocks on the path edges.
Innovation Solution
A planier shield arrangement with a V-shaped main sign for central leveling and a side plate for edge leveling, equipped with a holding device and overload protection that allows the side plate to swing into a protective position when encountering obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a grader is designed with a standard blade for leveling central surfaces, then it can effectively level the central track, but it cannot remove edge disturbances such as bumps at the path edges
Solution Approach 1:
The blade assembly is segmented into a main blade for central leveling and a side blade for edge disturbance removal. The side blade is detachably mounted to the main blade, allowing it to be added or removed based on operational requirements. This segmentation enables the grader to handle both central track leveling and edge disturbance removal effectively.
2Area of stationary object
If blade extensions are attached to increase area coverage, then the grader can level broader surfaces, but the blade extensions are vulnerable to damage from obstacles such as tree stumps or rocks
Solution Approach 1:
The side blade is designed with dynamic mounting mechanisms including a lifting device with a lifting cylinder for vertical adjustment and a tilting device with a tilting cylinder for angular adjustment. These dynamic capabilities allow the side blade to be raised or tilted away from obstacles, preventing damage while maintaining extended coverage capability when needed.
3Manufacturing precision
If the side blade is held firmly in grading position for effective edge leveling, then leveling precision is improved, but the side blade becomes vulnerable to overload damage from obstacles
Solution Approach 1:
The holding device incorporates an overload protection mechanism with a yielding connection that allows the side blade to pivot inward relative to the main blade when excessive force is detected. This yielding connection acts as a cushion, absorbing overload forces from obstacles before they can damage the blade or mounting structure, while maintaining firm holding under normal grading conditions.
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The invention relates to a dozer blade arrangement (100) for leveling a subsoil in the direction of travel (X), wherein the dozer blade arrangement (100) comprises: a V-shaped main blade (110) for leveling a central track (C) extending in the direction of travel (X); a side blade (120) for leveling a lateral track (S) adjacent to the central track (C) in the lateral direction (Y), wherein the lateral direction (Y) is perpendicular to the direction of travel (X); and a holding device (130) for holding the side blade (120) in a leveling position in which the side blade (120) projects beyond the main blade (110) in the lateral direction (Y), wherein the holding device (130) has an overload protection device (131) configured to cause the side blade (120) to move into a protective position in the event of an overload acting on the side blade (120).Furthermore, the invention relates to a corresponding grader (200) for leveling a subsoil with a device frame (300), a coupling device (400) attached to the device frame (300) for coupling with a construction machine, and a dozer blade arrangement (100) attached to the device frame (300).