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ECE R17 provisions on strength of automotive seat headrests and seat backrests; GB15083-2019 "Strength requirements and test methods for automotive seats, seat fasteners and headrests".
| Equipment size | Main test bench: | (3500 x 2000 x 2200) mm; |
| Control cabinet: | (600 x 600 x 1800) mm; | |
| Distribution cabinet: | (800 x 600 x 1000) mm; | |
| Equipment power supply | single phase AC 220V, 50Hz, 5KW. | |
| Nine servo electric cylinders, six headrest backrest static strength | Six headrest backrest static strength servo electric cylinders | Travel 600mm, displacement accuracy±1%, displacement resolution: 0.01mm; |
| Maximum thrust 2kN, accuracy: ±1%, resolution: 0.1N; | ||
| The loading position is above point H 290±0.25mm | ||
| Load sensor | Load: | 2KN |
| Quantity: | 6 | |
| Accuracy: | ±1% | |
| Optical code displacement sensor (optical encoder with servo motor) | Quantity: | 9 |
| Linear accuracy | 0.05%F·S | |
| Reproducibility | 0.1% | |
| Sampling frequency | 2KHz | |
| The measurement accuracy | better than ±1%. | |
| Control accuracy | better than ±1%. | |
1,The test bench is mainly composed of a cast iron base platform for seat installation, a static strength test frame for headrest backrest, an H-point alignment device, a load sensor, a servo motor and driver, an electrical control and acquisition system, and test software.
2,Load full range without grading, loading speed adjustable.
3,Controlled by servo electric cylinders, high-performance real-time automatic gain adjustment, which can automatically adjust the gain according to changes in load inertia, in conjunction with adaptive filters. The system can automatically adjust the gain from low rigidity to high rigidity.
4,The measurement control system uses a high-performance motion control card from National Instruments (NI) as the core component, with function units templated and standardized, featuring flexible configuration, strong interchangeability, and easy after-sales service;
5,Cast iron platform:The flatness tolerance of this platform is grade 2 as specified in JB/T7974-1999. The bottom platform is a cast iron platform with longitudinal T-shaped groove.The platform is cast with high strength cast iron HT250. The platform has been demagnetized and stabilized. The platform has high precision and good wear resistance.
6,The test frame for the static strength of headrests consists of the main column, transverse movement device of the column, longitudinal movement device of the column, horizontal support, vertical movement device of the horizontal support, swinging support, loading mechanism, up-and-down movement device of the headrest loading cylinder, headrest loading servo electric cylinder, backrest loading servo electric cylinder, head mold, back mold, high-precision load sensor, etc.
Company profile
Hongtu Instruments focuses on the research and development as well as production of protective testing equipment for protective suits, head, foot, ear, and eye protection. It is an integrated enterprise combining R&D, production, and sales. The testing equipment covers individual protective testing standards such as GB2811, GB2812, AS NI Z 89.1, EN397, EN166, EN168, ANSI Z87, GA294, and GA69.
Hongtu has been deeply involved in the field of individual protective detection equipment for over a decade, accumulating rich experience in equipment R&D and production. The company boasts a strong R&D team and professional pre-and post-sales service teams. Over the years, the company has leveraged its outstanding R&D capabilities and stringent quality management system to obtain ISO9001 quality system certification, intellectual property management system certification, and has been recognized as a "High-Tech Enterprise." It also holds multiple product invention patents, utility model patent certificates, software copyright certifications for equipment, and relevant CE certificates.
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