Crusher Bucket Jaw Adjustment to Prevent Strut Disarticulation
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Solution Overview
Problem
Existing crusher buckets face issues with structural disarticulation of the strut during crushing due to high loads, particularly when adjusting for fine material sizes, compromising reliability.
Innovation Solution
A crusher bucket design featuring a strut adjustment device with a profile-member and spacers to maintain the strut's position, ensuring stability during fine crushing, and a reinforced frame structure to withstand loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If spacers are inserted between the abutment portion and the strut to adjust the outlet section for fine material, then the size of crushed gravel can be reduced, but the strut may accidentally disarticulate from the abutment portion due to high loads
Solution Approach 1:
A retention element is introduced as an intermediary component between the abutment portion and the strut. This retention element prevents the strut from accidentally disarticulating from the abutment portion while still allowing the spacers to adjust the outlet section for fine material crushing. The retention element acts as a mediator that maintains the connection without interfering with the adjustment function.
Solution Approach 2:
The retention element is installed beforehand to prevent the potential disarticulation issue before it occurs. By having this protective element in place prior to operation, the system is cushioned against the harmful effect of strut disarticulation, allowing confident use of multiple spacers for fine material processing.
2Manufacturing precision
If the outlet section is reduced by inserting spacers to crush fine material, then the size of crushed gravel is minimized, but the loads from material resistance compromise the reliability of the bucket
Solution Approach 1:
The retention element serves as an intermediary that distributes and manages the high loads generated during fine material crushing. By preventing strut disarticulation, it ensures that the full structural strength of the bucket is utilized to withstand the intense loads without connection failure.
Solution Approach 2:
The retention element applies a preliminary counter-action to the potential failure mode of strut disarticulation under load. By preventing this failure mode beforehand, the system can safely handle the high loads associated with fine material crushing without compromising structural integrity.
Data Source
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AI summary
A crusher bucket (1) comprises a frame (2), crushing elements (10, 11) comprising a movable jaw (10) and a fixed jaw (11) which are received in the frame (2), and an adjustment device (41) which can change a distance (D) between the jaws (10, 11) at an outlet (8) of the material. The adjustment device comprises a strut having a first end and a second end which are opposite each other and which are received in a first seat which is defined on the frame (2) and in a second seat which is defined on the movable jaw (10), respectively, and at least one spacer which is or can be removably inserted between the first seat and the first end of the strut.