Modular Stump Cutting Tooth Assembly with Replaceable Bits
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Solution Overview
Problem
The existing stump grinding technologies require laborious and costly processes for replacing stump grinding teeth, as the entire tooth must be discarded and replaced when the cutting bits wear out, leading to significant downtime and expense.
Innovation Solution
A stump grinding assembly with individually replaceable tooth assemblies, where each tooth is held in place by connecting elements such as holders, fasteners, and shock-absorbing systems, allowing for easy replacement of worn cutting bits without needing to replace the entire tooth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional stump grinding teeth are used with brazed cutting bits, then the tooth structure is simple and robust, but the entire tooth must be replaced when cutting bits wear out, leading to high labor costs and downtime
Solution Approach 1:
The tooth assembly is divided into separate functional components: a reusable tooth body and replaceable cutting bits. The cutting bits are attached to the tooth body through a modular connection system (such as a夹持 structure or fastening mechanism), allowing the cutting bits to be independently replaced without removing or damaging the tooth body. This segmentation enables partial replacement of worn components while preserving the intact tooth structure.
2Ease of manufacture
If conventional stump grinding teeth are used with brazed cutting bits, then the tooth structure is simple and robust, but the entire tooth has to be discarded and replaced, raising consumable expenses
Solution Approach 1:
The tooth assembly is divided into separate functional components: a reusable tooth body and replaceable cutting bits. The cutting bits are attached to the tooth body through a modular connection system (such as a夹持 structure or fastening mechanism), allowing the cutting bits to be independently replaced without removing or damaging the tooth body. This segmentation enables partial replacement of worn components while preserving the intact tooth structure.
Solution Approach 2:
The invention enables selective discarding of only the worn cutting bits while recovering and reusing the tooth body. The modular design allows the cutting bits to be detached and replaced, while the tooth body remains in service. This reduces consumable expenses by minimizing the amount of material that needs to be discarded and replaced, as only the cutting bits (not the entire tooth) become consumables.
3Device complexity
If conventional stump grinding teeth are used, then the tooth structure is simple, but the replacement process requires drilling and bolt removal, making it laborious
Solution Approach 1:
The tooth assembly is divided into separate functional components: a reusable tooth body and replaceable cutting bits. The cutting bits are attached to the tooth body through a modular connection system (such as a夹持 structure or fastening mechanism), allowing the cutting bits to be independently replaced without removing or damaging the tooth body. This segmentation enables partial replacement of worn components while preserving the intact tooth structure.
Solution Approach 2:
The invention introduces a dynamic or adjustable connection mechanism between the cutting bits and tooth body, such as a quick-release fastening system, clamp, or bayonet-style connector. This dynamic connection allows for rapid attachment and detachment of cutting bits without requiring drilling, welding, or bolt removal. The connection mechanism is designed to be operationally simple, enabling workers to replace cutting bits quickly and easily during maintenance intervals.
Data Source
AI summary
A stump cutting assembly mounted to a stump cutting wheel. Stump cutting assembly is a stump cutting tooth interconnected to the wheel by a holder or block that is fixed to wheel by welding or other equivalent process, an optional debris deflector and a fastener that interconnects tooth and deflector to holder. As wheel rotates about its axis of rotation, the tooth cuts away at wood or other debris in which it comes into contact through the side to side and/or longitudinal movement of a stump grinder unit.