Hard Hat Impact Puncture Testing Machine GB / T2812-2006
Main purpose:
This equipment is developed according to the new national safety
helmet GB / T2812-2006 "Hard Hat Test Method". It is used to test
the impact resistance and puncture resistance of the helmet. The
equipment is highly automated and easy to operate. Large quality
inspection unit and construction engineering inspection station.
Instrument characteristics:
1. The instrument realizes microcomputer automatic control. A
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 value of impact
force.
2. Adopt German imported high-precision dynamic force sensor,
measuring range 20KN.
3. Adopt non-magnetic leakage adsorption structure, drop hammer and
puncture cone automatically position the center position of the
helmet.
4. Test head mold: special mold casting No. 1 and No. 2 and metal
head molds, which meet the specific requirements of the standard,
can be repaired after being impacted, which is much better than the
old standard wooden head mold.
5. The whole machine adopts European standard aluminum profile,
frame structure, more stable; the electrical circuit adopts
built-in type, beautiful structure, with modern technology sense
and texture.
6. Impact height: 1000mm ± 5mm, vertical spiral handle to adjust
the height. The height adjustment is convenient and easy to
control; the height measurement is simple and intuitive, which
greatly improves the test efficiency and accuracy.
7. Drop hammer and puncture hammer can be replaced freely, and the
operation is simple.
8. Protection system: The newly designed surrounding metal
protection net and installation link fixing method greatly reduce
the possibility of accidents during the test, and further improve
the safety of the test operation.
9. A horizontal test device is installed at the bottom to ensure
that the test is at a level and improve test accuracy.
10. Impact method: the free-fall form is adopted, which is the most
realistic simulation of the actual use of the site, avoiding
complex speed compensation with guide rails or guide-drops,
ensuring the accuracy of the test.
The main technical indicators:
1. Head mold: meet the requirements of Appendix A of GB /
T2812-2006 "Hard Hat Test Method" standard.
2. Bench: Can control lifting, suspending and releasing impact drop
hammer and puncture cone.
3. Drop weight: impact drop weight: quality is imagekg, hammer head
is hemispherical, radius is 48mm, material is 45 # steel, shape is
symmetrical and uniform;
Puncture cone: quality is imagekg, puncture part: cone angle is 60
°, cone tip radius is 0.5mm, length is 40mm, maximum diameter is
28mm, hardness is HRC45.
4. Force measuring sensor: measuring range 0-20KN, frequency
corresponding to minimum 5kHz, dynamic force sensor, accurate to
1N.
5. Base: It has anti-impact strength, and can firmly install the
load cell.
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 height: 1000mm ± 5mm.
8, 1 #, 2 # magnesium aluminum alloy test head molds one each, the
head mold mass is 5.0kg ± 0.1kg, and the remaining dimensions and
parameters conform to the provisions in Appendix A of GB /
T2812-2006
9. Working power: AC220V, 50Hz.
Meet the standards:
- GB / T2811-2007
- GB / T2812-2006
