Reciprocating saw blade that avoids vibration when the saw is empty
By opening a weight-reducing hole at the beginning of the saw blade and filling it with lightweight damping material, combined with a specific tooth shape design, the vibration problem of standard-sized saw blades when hollow-sawed in equipment without vibration damping function is solved, achieving efficient cutting and long service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING KUN ZHI JIE MECHANICAL & ELECTRICAL EQUIP CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-19
AI Technical Summary
In existing technologies, standard-sized reciprocating saw blades sway left and right (lateral vibration) when sawing in equipment without vibration damping, resulting in decreased cutting accuracy, saw blade breakage, and safety hazards. Furthermore, existing solutions are costly or cannot meet the requirements for standard sizes.
Four non-uniformly distributed weight-reducing holes are made at the beginning of the saw blade and filled with lightweight damping material. Combined with the design of short and long saw teeth, the depth of the long saw teeth is 0.5 to 1.0 mm deeper than that of the short saw teeth. Chip removal grooves are set on both sides of the long saw teeth. The center of gravity of the saw blade is shifted to the end to simulate the damping effect and absorb vibration energy.
It effectively reduces lateral vibration amplitude by approximately 60%, improves cutting accuracy and stability, extends saw blade life by 1.5 times, while maintaining low cost and efficient chip removal performance, and is suitable for standard size saw blades.
Smart Images
Figure CN224368475U_ABST