Electric Chainsaw Chain Structure for Vibration and Oil Splash Control
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Solution Overview
Problem
Existing electric chain saws face issues with complex structure, high cost, low strength cutting edges, easy breakage, and resonance leading to angular deviation and vibration, as well as lubricating oil splashing during operation, which affects efficiency and smoothness.
Innovation Solution
An electric chain saw assembly with a simplified structure featuring a saw chain with integrated transmission chain pieces and connecting pieces, including a tooth cutting structure with a cutting edge and limiting tooth, and an oil guide plate with specific oil guide holes and channels to recirculate lubricating oil, preventing splashing and enhancing cutting efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If two shafts and one tooth structure is adopted to reduce friction and improve cutting efficiency, then cutting efficiency is improved, but structure becomes complicated and cost increases
Solution Approach 1:
The patent combines the two shafts and one tooth structure into a single integrated sawtooth design where the cutting edge and limiting tooth are formed as one unified component. This merging eliminates the need for separate shafts and multiple tooth pieces, simplifying the structure while maintaining the functional benefits of reduced friction and improved cutting efficiency.
2Stability of the object's composition
If multiple tooth forms are arranged in sequence to distribute load, then vibration is reduced, but assembly becomes complicated and cost increases
Solution Approach 1:
The patent integrates the outer cutting tooth, middle cutting tooth, and planing tooth into a single continuous cutting edge structure. This unified design maintains the load-distributing sequence of different tooth forms while eliminating the need for separate assembly of multiple tooth components, thereby reducing vibration without complicating assembly.
3Productivity
If cutting edges are made sharper to improve cutting performance, then cutting efficiency is improved, but strength decreases leading to easy breakage
Solution Approach 1:
The patent applies different geometric characteristics to different portions of the sawtooth: the cutting edge is designed with a sharp angle for effective cutting, while the limiting tooth and body portion are designed with greater mass and optimized geometry for strength. This local differentiation allows the cutting edge to be sharp for high cutting efficiency while the overall structure maintains sufficient strength to prevent breakage.
4Ease of operation
If lubricating oil is applied to the saw blade during operation, then smoothness and cutting sharpness are improved, but oil splashes out affecting working environment
Solution Approach 1:
The patent extracts and contains the lubricating oil within a closed circulation system. The oil is applied to the saw blade through controlled delivery mechanisms and then collected from the guide plate, preventing it from splashing out into the working environment. This extraction and containment approach maintains the beneficial lubrication effects while eliminating the harmful splashing.
Data Source
AI summary
An electric chain saw assembly comprises a saw chain and a guide plate, the saw chain is arranged around an edge of the guide plate, and the saw chain comprises transmission chain pieces and connecting pieces which are sequentially and rotatably connected end to end; a top end of the transmission chain piece is are provided with a tooth cutting structure; and the tooth cutting structure comprises a cutting edge and a limiting tooth, the limiting tooth is located at a front end of the saw chain in a forward direction, the cutting edge is located at a rear end of the saw chain in the forward direction, and a chipping groove is arranged between the cutting edge and the limiting tooth. The electric chain saw assembly, has simple structure, is convenient to assemble and solves the problem that blades are bent or deviated due to resonance can be effectively.