Hydraulic Crusher Frame Support for Uneven Terrain Stability
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Solution Overview
Problem
Existing jaw crushers experience frame twisting due to uneven terrain, leading to misalignment, reduced component lifespan, and increased manufacturing costs, particularly in mobile crushing plants.
Innovation Solution
Implementing a hydraulic support system with adjustable second support devices connected by hydraulic channels and a pressure accumulator to equalize pressure across the frame, ensuring equal force distribution and preventing twisting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If rigid fixing devices are used to secure the crusher frame to the base, then the frame stability is improved, but the frame is subjected to large stresses and twisting forces on uneven terrain which can lead to breaking of bolts, rubber dampers, or welding seams
Solution Approach 1:
The patent changes the physical state of the support system from rigid to flexible by introducing spring elements. The springs can compress and extend to accommodate terrain variations, transforming the fixing devices from stress-transmitting rigid structures to stress-absorbing flexible supports that maintain frame stability while reducing peak stresses on bolts and welding seams
Solution Approach 2:
The patent applies beforehand cushioning by pre-installing spring elements in the support devices between the frame and base. These springs are positioned in advance to absorb and distribute shocks and stresses from uneven terrain before they can reach critical components like bolts and welding seams, preventing their failure
2Shape
If the fixing method requires straightness and rigidity to prevent frame twisting, then the frame alignment is improved, but the manufacturing costs increase due to higher accuracy requirements for the base
Solution Approach 1:
The patent changes the support characteristic from rigid to flexible using spring elements. This flexibility allows the support devices to adapt to base imperfections and terrain variations, maintaining proper frame alignment (horizontal positioning) without requiring the base to be manufactured with high precision or straightness
Solution Approach 2:
The spring elements act as intermediaries between the frame and the base. They absorb the discrepancies in base straightness and provide a stable, horizontal mounting surface for the frame, decoupling the frame alignment requirements from the base manufacturing quality
3Adaptability or versatility
If friction joints are used at the rear end to allow movement, then the flexibility is improved, but the vertical flexibility remains small and cannot adequately compensate for base errors
Solution Approach 1:
The patent changes the support characteristic from friction-based limited movement to spring-based elastic deformation. The spring elements can compress and extend vertically over a larger range compared to friction joints, providing adequate vertical flexibility to compensate for base errors and uneven terrain while maintaining frame stability
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
Prevents frame twisting, extends component lifespan, reduces manufacturing costs, and enhances operational efficiency and reliability of crushing plants.
Implementation Method 1
a hydraulic liquid in said adjusting volumes is allowed to flow to other adjusting volumes connected by hydraulic channels to equalize the pressure in said adjusting volumes
Implementation Method 2
controlling based on the detected pressure a desired pressure from the pressure accumulator to the adjusting volume
Data Source
Figure 1
Figure 2a~2c
Figure 3a~3c
AI summary
A method and a system for supporting a frame (10) of a mineral material crusher (100) on a body (701 ) of a crushing plant (700) and a mineral material processing plant (700). The crusher frame (10) is supported by first support devices (210) in place in relation to the body of the crushing plant at first support points of the body of the crushing plant and by at least two second support devices (320, 420, 520) to the body of the crushing plant at second support points. The second support device (320, 420, 520) comprises an adjusting member (300) to be arranged in between the crusher frame (10) and the body (701 ) of the crushing plant, and at least one second support device (320, 420, 520) is configured to move the frame of the crusher vertically in relation to the body of the crushing plant. The adjusting member (300) comprises a cylinder (301 ) and a piston (302) adapted inside the cylinder which define an adjusting volume (303, 303') therebetween in which a pressure is formed from a load above the adjusting member. Same pressure is arranged to form into the adjusting volumes of the adjusting members.