Swing Jaw Retention Seat With Detachable Toggle Plate Clamp
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Solution Overview
Problem
Existing toggle plate seats in jaw crushers deform under high crushing loads, leading to unstable load transfer and difficult removal, often requiring unsafe cutting or welding for replacement.
Innovation Solution
A retention seat assembly with a detachable retention plate that clamps the toggle seat in a wedged arrangement, allowing easy detachment without cutting or welding, using a first retention seat part cast into the swing jaw and a second detachable plate that diverges towards the rear to wedge the toggle seat in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a toggle seat is entirely cast into the swing jaw frame, then the toggle seat is securely held in position, but the toggle seat becomes difficult to remove when deformed, requiring cutting or welding
Solution Approach 1:
The retention seat is divided into two separate parts: a cast retention seat part integrated with the swing jaw frame, and a detachable retention plate that can be removed independently. This segmentation allows the toggle seat to be securely held during operation while enabling easy removal by detaching the plate without cutting or welding the entire assembly.
2Stability of the object's composition
If the toggle seat is friction fit into a cast retention seat, then the toggle seat is held in position, but the toggle seat becomes mechanically stuck when deformed under high crushing loads
Solution Approach 1:
The retention seat transitions from a static cast structure to a dynamic assembly where the detachable retention plate can be easily attached and removed. This allows the system to adapt between operational stability (when the plate is attached) and maintenance accessibility (when the plate is removed), preventing the toggle seat from becoming permanently stuck.
3Ease of repair
If hot tools or welding are used to remove deformed toggle seats, then the toggle seat can be removed, but unsafe conditions are created during maintenance
Solution Approach 1:
The detachable retention plate is designed from the beginning to be easily removable, eliminating the need for subsequent cutting or welding operations. This preliminary design choice prevents the need for dangerous hot work tools or welding procedures during maintenance, as the plate can simply be unbolted and removed to access the toggle seat.
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
Enables easy and safe replacement of toggle seats by unbolting the detachable plate, minimizing wear-related issues and simplifying maintenance.
Implementation Method 1
The first retention seat part and second retention seat part when assembled define a recessed retention seat with opposed sidewalls that diverge towards a rear of the assembled retention seat, so that in use the toggle seat is held in position in the seat in a wedged clamping arrangement
Data Source
AI summary
A swing jaw of a jaw crusher includes a cast swing jaw frame and a retention seat for a toggle seat having a first retention seat part. The retention seat includes a detachable retention plate that is configured to couple to the first retention seat part so as to clamp a toggle seat therebetween in a wedged clamping arrangement. The first retention seat part is usually integrally cast with the cast swing jaw frame. The retention seat upon assembly has opposed sidewalls that diverge towards a rear wall of the retention seat to wedge the toggle seat in position in the assembled retention seat. Generally, the first retention seat part has a first sidewall and a rear wall of the retention seat, the detachable retention plate having a second sidewall of the retention seat.