This equipment is developed according to the new national standard GB/T2812-2006 “Safety Helmet Test Method”, which is used to test the impact resistance and puncture resistance of safety helmets, with a high degree of automation and easy operation, and is widely used in safety helmet manufacturers, major quality inspection units and construction engineering testing stations. 【Relevant Standards】

GB/T2811-2007 Safety helmet GB/T2812-2006 Safety helmet test method

【Scope of application】:This equipment is developed according to the new national standard GB/T2812-2006 “Safety Helmet Test Method”, which is used to test the impact resistance and puncture resistance of safety helmets, with a high degree of automation and easy operation, and is widely used in safety helmet manufacturers, major quality inspection units and construction engineering testing stations. [Meet the standard]: GB/T2811-2007 Hard helmet GB/T2812-2006 Safety helmet test method [Instrument features]: 1. The instrument realizes fully automatic control of microcomputer. The special processing system is used to automatically collect dynamic signals, process and output data, and the instrument has a printing function to automatically record and lock the peak impact force. 2. It adopts high-precision dynamic force sensor imported from Germany, with a measuring range of 20KN. 3. Adopt non-magnetic leakage adsorption structure, and automatically position the center position of the helmet with drop hammer and puncture cone. 4. Test head mold: special mold casting No. 1 and No. 2 and metal head mold, in line with the specific provisions of the standard, after being impacted, can be repaired, much better than the old standard wooden head mold. 5. The whole machine adopts European standard aluminum profile, frame structure, and stronger stability; The electrical wiring adopts built-in type, beautiful structure, and has a modern sense of technology and texture. 6. Impact height: 1000mm±5mm, vertical spiral handle adjusts height. Easy height adjustment and easy control; The height measurement is simple and intuitive, which greatly improves the efficiency and accuracy of the test. 7. The drop hammer and puncture hammer are freely replaced, and the operation is simple. 8. Protection system: The new design of metal protective mesh and installation link fixing method greatly reduces the possibility of accidents in the test and further improves the safety of the test operation. 9. The bottom is equipped with a horizontal test device to ensure that the test is at a level and improve the accuracy of the test. 10. Impact mode: It adopts the form of free fall, which most realistically simulates the actual use site, avoids the complex speed compensation with guide rails or guided falls, and ensures the accuracy of the test. 【Technical Parameters】: 1. Head mold: in line with the provisions of GB/T2812-2006 “Safety Helmet Test Method” standard Appendix A. 2. Bench: can control lifting, hanging and releasing impact drop hammers and puncture cones. 3. Drop hammer: impact drop hammer: the mass is kg, the hammer head is hemispherical shape, the radius is 48mm, the material is 45# steel, and the shape is symmetrical and uniform; Puncture cone: mass is kg, puncture part: cone angle is 60°, cone tip radius 0.5mm, length 40mm, diameter 28mm, hardness HRC45. 4. Force sensor: measurement range 0-20KN, frequency corresponding to the minimum 5kHz, dynamic force sensor, accurate to 1N. 5. Base: It has impact resistance and can firmly install the force sensor. 6. Power-on display device: When the circuit forms a closed loop, an alarm signal can be issued to indicate that the puncture cone has contacted the head mold. 7. Drop hammer height: 1000mm±5mm. 8. 1 piece each for 1# and 2# magnesium-aluminum alloy test heads, the weight of the head molds is 5.0kg±0.1kg, and the rest of the dimensions and parameters comply with the provisions of GB/T2812-2006 Appendix A. 9. Working power supply: AC220V, 50Hz.