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By employing a tension wheel assembly driven by a compression spring in the ring saw, automatic compensation of tension force is achieved, solving the problems of complex structure and high cost of existing ring saws, improving cutting stability and reducing production costs.

CN224737395UActive Publication Date: 2026-09-11WUYI WUYANG TOOLS MFG CO LTD
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Patent Information

Application Number
CN202522193357.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-16
Publication Date
2026-09-11
Estimated Expiration
2035-10-16

AI Technical Summary

Technical Problem

Existing ring saws have complex and costly tensioning structures and lack automatic compensation capabilities, which leads to a decrease in the tension of the saw blade under high-frequency vibration and thermal expansion and contraction, affecting cutting stability and lifespan.

Method used

The tension wheel assembly driven by a compression spring achieves automatic tension compensation through an integrally formed structure of slide and bushing, and simplifies assembly, reducing the number of parts and assembly interfaces.

Benefits of technology

Automatic compensation of saw blade tension is achieved, which improves cutting accuracy and operational stability, and reduces production costs and assembly complexity.

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Abstract

This utility model relates to a ring saw, including a ring saw blade, a body, a head shell disposed at the front end of the body, a drive wheel disposed on the head shell, and a saw blade positioning mechanism connected to the head shell. The drive wheel is driven by a drive device disposed within the body and is pulsatorically connected to the ring saw blade. The saw blade positioning mechanism includes a housing connected to the head shell, two positioning wheels disposed on the housing and positioning the ring saw blade, and two tensioning wheel assemblies disposed on the housing. Each of the two tensioning wheel assemblies includes a bushing and a tensioning wheel rotatably disposed on the bushing. The two positioning wheels and the two tensioning wheels are symmetrically disposed on both sides of the ring saw blade and in surface contact with it. The housing has two sliding cavities, each of which is slidably connected to a sliding seat integrally formed with the corresponding bushing. This utility model not only achieves automatic tension compensation but also has the advantages of simple structure and low cost.
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