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摩托车头盔吸收碰撞性能测试仪（消防头盔抗冲击加速度性能测试仪）
（Motorcycle helmet collision absorption performance tester (fire helmet impact acceleration performance tester)）
执行标准：
1.GB 811-2022《摩托车、电动自行车乘员头盔》
2.T/SEIA 003—2019《电动自行车乘员头盔技术要求及检测规范》3.T/TXB001-2019《电动自行车乘员头盔》
4.GA44 GA633；
5.XF44-2015
Execution Standards:
1. GB 811-2022 "Passenger helmets for motorcycles and electric bicycles"
2. T/SEIA 003-2019 "Technical Requirements and Testing Specifications for Electric Bicycle Passenger Helmets"
3. T/TXB001-2019 "Electric Bicycle Passenger Helmets"
4. GA44 GA633；
5.XF44-2015
jrhz.info技术参数：
1、头模：根据不同类型的头盔分为全头模和半头模，分别为小、中、大三组，头模重量分别是4kg、5kg、6kg。
2、平板砧：采用工具钢制成，碰撞粗糙度≥Ra0.8，硬度≥50HRC，直径≥127mm，厚度≥15mm的圆柱冲击面。
3、半球砧：采用T10A工具钢制成，碰撞粗糙度≥Ra0.8，硬度≥50HRC，半径48mm的球形冲击面。
4、底座：由钢筋混凝土制成，重量≥1.6T（XF44-2015平台300*300*25钢板）
5、加速度传感器：量程1-1000g，误差2.5%，频率0-1000HZ，
6、冲击高度：0-2000mm，可自行设定（XF44-2015高度1836）
7、冲击速度：实时检测固定点的下落速度，并数字显示。
Technical Parameters:
1. Head mold: According to different types of helmets, they are divided into full head mold and half head mold, which are divided into three groups: small, medium, and large. The weight of the head mold is 4kg, 5kg, and 6kg, respectively.
2. Flat anvil: made of tool steel, with a collision roughness of ≥ Ra0.8, a hardness of ≥ 50HRC, a diameter of ≥ 127mm, and a thickness of ≥ 15mm on a cylindrical impact surface.
3. Hemisphere anvil: made of T10A tool steel, with a collision roughness of ≥ Ra0.8, hardness of ≥ 50HRC, and a spherical impact surface with a radius of 48mm.
4. Base: made of reinforced concrete, weight ≥ 1.6T (XF44-2015 platform 300 * 300 * 25 steel plate)
5. Acceleration sensor: range 1-1000g, error 2.5%, frequency 0-1000Hz,
6. Impact height: 0-2000mm, customizable (XF44-2015 height 1836)
7. Impact speed: Real time detection of the falling speed of a fixed point and digital display.
原理：
摩托车头盔吸收碰撞性能测试仪的原理基于物理学中的冲击动力学原理，通过模拟真实骑行环境中可能发生的碰撞场景，精确控制撞击力的大小、方向及持续时间，对头盔进行撞击测试，以评估其吸能性能、抗穿透能力及对头部的保护效果。
Principle:
The principle of the motorcycle helmet collision absorption performance tester is based on the principles of impact dynamics in physics. By simulating collision scenarios that may occur in real riding environments, the size, direction, and duration of the impact force are accurately controlled to conduct impact tests on the helmet to evaluate its energy absorption performance, anti penetration ability, and head protection effect.
用途：
要用于测试电动自行车、摩托车头盔的吸收碰撞能量性能。
Purpose：
To test the collision energy absorption performance of electric bicycle and motorcycle helmets.
应用领域：
广泛应用于电动自行车、摩托车头盔的相关生产、科研、质量监督检测等单位。
Application Areas:
Widely used in the production, scientific research, quality supervision and testing of electric bicycles, motorcycle helmets and other related units.
特征：
1、冲击高度可自行设定，并实时显示冲击高度，设定高度到，自动停止上升。
2、底座具有抗冲击强度，能牢固安装相关器件，并预留相关固定孔。
3、头型及头盔的采用电动控制吸合释放。
4、采用测试工装，方便更换全头型和半头型，便于进行全头盔或办头盔测试。
5、全头盔特殊设计，头盔可以360°旋转，可以进行顶部头顶、后部后脑勺、前侧前额、两侧耳朵等五点测试。
6、头型的提升及释放部分均采用双导轨结构，确保下落平稳。
7、平砧及半球砧采用插口式安装方式，方便快速更换及安装。
Features:
1. The impact height can be set by oneself and displayed in real time. When the set height is reached, the ascent will automatically stop.
2. The base has impact resistance, can firmly install relevant components, and reserves relevant fixing holes.
3. The head shape and helmet are electrically controlled for suction and release.
4. Using testing fixtures, it is convenient to replace full head and half head models, making it easy to conduct full helmet or helmet testing.
5. The helmet is specially designed to rotate 360 ° and can be tested at five points including the top of the head, the back of the head, the front of the forehead, and the ears on both sides.
6. The lifting and releasing parts of the head shape adopt a dual guide rail structure to ensure smooth descent.
7. The flat anvil and hemispherical anvil adopt a plug-in installation method, which is convenient for quick replacement and installation.
结果判定：
根据GB811-2020 摩托车成员头盔的规定，头盔吸收碰撞能量性能试验应满足
1、A类头盔应满足：加速度峰值不超过300g；加速度超过150g的作用时间应小于4ms。
2、B类头盔应满足：加速度峰值不超过400g；加速度超过2000g的作用时间应小于2ms。(加速度疯峰值不超过300g时，此项不做要求)；加速度超过150g的作用时间应小于4ms。
Result judgment:
According to the regulations of GB811-2020 for motorcycle helmets, the performance test of helmet absorption of collision energy should meet the requirements
1. A-class helmets should meet the following requirements: peak acceleration not exceeding 300g; The duration of acceleration exceeding 150g should be less than 4ms.
2. B-class helmets should meet the following requirements: peak acceleration not exceeding 400g; The action time of acceleration exceeding 2000g should be less than 2ms. When the peak acceleration does not exceed 300g, this requirement is not required; The duration of acceleration exceeding 150g should be less than 4ms.
