Numerical Analysis of a Small Pneumatic Hammer Performance Based on Evaluation Method of Friction Force

Figure 1

The structure of a small pneumatic hammer: 1. Inlet port; 2. Valve; 3. Stroke control port; 4. Return control port; 5. Piston; 6. Shank; 7. Front chamber; 8. The outlet in the front chamber; 9. The outlet in the rear chamber; 10. Rear chamber.