Crusher Bucket Eccentric Jaw Adjustment
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Solution Overview
Problem
Existing crusher buckets are not sufficiently resistant to stresses during material crushing and lack effective control over the crushing effect, making them inadequate for varying material dimensions.
Innovation Solution
A crusher bucket design featuring a spoon-shaped casing with a movable jaw connected via eccentric shafts, an adjustment device for varying the distance between the jaws, and a protection plate with an attenuation element for optimal material alignment and stress management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a fixed support structure is used to connect eccentric shafts to the casing, then the structure is simple, but the resistance to crushing stresses is insufficient
Solution Approach 1:
The support structure is transformed from a fixed rigid connection to a dynamic adjustable connection. The eccentric shafts are connected to the movable jaw through a mechanism that allows adjustment of the distance between jaws, enabling the structure to adapt to varying crushing stresses and material conditions, thereby improving strength without excessive complexity.
Solution Approach 2:
The distance between the fixed jaw and movable jaw can be adjusted by varying the position of the eccentric shafts. This parameter change allows the crusher bucket to handle different material sizes and crushing requirements, improving structural resilience to varying stress conditions while maintaining reasonable design complexity.
2Adaptability or versatility
If the distance between jaws is fixed, then the structure is simple, but the control over crushing effect is insufficient
Solution Approach 1:
The fixed jaw-movable jaw distance is transformed into a dynamic adjustable parameter. The mechanism allows the operator to change the distance between jaws according to the size of material to be crushed and the desired output dimensions, providing versatile control over the crushing effect.
Solution Approach 2:
The adjustment mechanism is divided into separate functional components: the eccentric shafts for generating motion, the support structure for positioning, and the adjustment devices for controlling jaw distance. This segmentation allows for independent optimization of each component, achieving adaptability without excessive overall complexity.
3Productivity
If material is not properly aligned towards the crushing zone, then the structure is simple, but the crushing efficiency is reduced
Solution Approach 1:
The protection plate is positioned in advance to guide material towards the crushing zone between the jaws. This preliminary alignment action ensures that material enters the crushing area in an optimal position, improving crushing efficiency without requiring complex active guidance systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design enhances resistance to crushing stresses and allows precise control over the crushing effect, adapting to different material dimensions and optimizing the crushing process.
Implementation Method 1
a protection plate (7) which is connected to the movable jaw (1) in the region of a support element (16) and which is directed towards the inlet opening (102), wherein the protection plate (7) is connected to the support element (16) by means of an attenuation element (8) so as to allow limited movements for the protection plate (7) with respect to the support portion (16)
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A~3B
AI summary
Provided is a crusher bucket including a casing in which there are mounted crushing elements including a fixed jaw and a movable jaw, in which the movable jaw is supported on the casing by a pair of eccentric shafts, and further including an adjustment device capable of varying a distance between the fixed jaw and the movable jaw at least in the region of a discharge of the material.