Shear Jaw Blade Liners for Protecting Worn Blade Pockets
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Worn or deformed blades in demolition equipment can cause unnecessary wear and deformation to the blade pockets, leading to improper blade seating, bolt shearing, and blade detachment during operation.
Innovation Solution
The use of blade liners, which are thicker and more protective than shims, positioned between the blade and the blade pocket to prevent wear and damage to the pocket, while also securing the blade properly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If worn or deformed blades are used in the blade pocket, then the blade can still be mounted and operated, but the blade pocket becomes worn or deformed leading to improper blade seating and bolt shearing
Solution Approach 1:
A sacrificial liner is introduced as an intermediary component between the blade and the blade pocket. The liner absorbs wear and deformation damage that would otherwise affect the blade pocket, allowing worn blades to be used without compromising the blade pocket integrity. The liner can be replaced independently while retaining the blade pocket and blade assembly structure.
Solution Approach 2:
The liner is designed as a sacrificial, replaceable component that takes on the wear and damage instead of the expensive blade pocket. When the liner becomes worn or deformed, it can be replaced without replacing the entire blade pocket assembly, effectively using a cheaper, short-living component to protect the more durable, expensive structure.
2Stability of the object's composition
If blades are secured tightly in the blade pocket to prevent movement, then blade positioning is stable, but worn or deformed blades cause unnecessary wear to the pocket and bolts may shear
Solution Approach 1:
The liner serves as a mediator between the blade and blade pocket, allowing the blade to be securely mounted while the liner absorbs the harmful wear and deformation effects. The liner protects the blade pocket from direct contact with worn or deformed blade surfaces, reducing wear while maintaining secure blade positioning.
Solution Approach 2:
The liner acts as a pre-positioned protective layer that cushions and absorbs wear and deformation damage before it can affect the blade pocket. This beforehand protection allows the system to tolerate worn or deformed blades without compromising the blade pocket integrity or causing bolt shearing.
3Manufacturing precision
If shims are used to adjust blade position in the pocket, then precise blade location is achieved, but the shims do not provide sufficient protection against wear and damage to the pocket
Solution Approach 1:
The invention merges the functions of positioning (traditionally performed by shims) and protection (traditionally requiring separate protective components) into a single integrated liner component. The liner provides both precise blade location adjustment and substantial wear protection, eliminating the need for separate shim components and providing superior pocket protection.
Solution Approach 2:
The liner can be constructed from composite materials or materials with specific properties that combine the hardness needed for wear resistance with the adjustability needed for precise positioning. This composite approach allows the single liner component to perform both positioning and protection functions effectively.
Data Source
AI summary
A jaw of a jaw set used for construction or demolition applications has liners positioned between the blade pockets of the jaw set body and the blades of the jaw set to protect the blade pockets of the jaw set body from contact with worn or deformed blades during operation so that the worn or deformed blades do not damage the blade pockets of the jaw bodies. Such damage is inherent with the common utilization of worn or deformed blades.