Factory Hot Selling Dynamic Holding System Testing Helmet Belt Tensile Strength Testing Machine

Purpose 

With certain initial load apply on the helmet strap system for a certain length of time, then with a certain weight weights fall from certain height and make the impact force also applied on the strap system, thereby to judge strap system’s resistance tensile performance

 

 

The Main Technical Specifications 

Product Name	Factory Hot Selling Dynamic Holding System Testing Helmet Belt Tensile Strength Testing Machine
Testing standard	ECE R22.05, IS4151 etc testing standard
Function	It's used for helmet strap tension strength testing
Rise device	Pneumatic rise device
Initial load	15kg
Impact weight	10kg
Impact height	750mm
Displacement sensor	High accuracy displacement sensor catch the data
Control software	HT-6018 special computer softeare conrol rise, down and data calculus
Report format	Word , Excel, PDF,JPG etc format
Data display	Computer with real time curve display
Electricity	220V 50HZ

 

 

The Main parts of helmet retension system testing machine

NO	Parts Name
1	Fixed helmet support
2	Testing machine frame
3	Displacement recorder4
4	Drop release device
5	Falling weights
6	Guides
7	Anvil
8	Servo motor
10	Cylinder
11	Limit device
12	Computer and Control software

 

 

Testing Procedure

1. The helmet shall be positioned 

2.In this position the helmet shall be held  at a point traversed by the vertical axis passing through the centre of gravity of the headform is equipped with a load bearing device aligned with the vertical axis passing through the centre of gravity of the headform and with a device to measure the vertical displacment of the point of application of the force

3.A guide and arrest device for a falling mass shall then be attacheed below the headform, the mass of the headform so equipped in this ways shall be 15±0.5kg, this produces the preloading on the retention system for determiniing theh position form which the vertical displacment of the point of application of the force hall be measured

4.The falling mass of 10kg±0.1kg shall then be released and shall drop in a guided free fall from a height of 750mm±5mm