输送带接头动态耐久性测试实验台的设计

针对带式输送机的输送带接头强度以及使用寿命测试的需要,设计了输送带接头动态耐久性测试实验台。整机采用液压与机械相结合的方式,对其速度、最大载荷、最小载荷以及实验周期进行控制,可以对接头处的动态耐久性能进行有效地测试。

输送带接头动态耐久性试验台滑轨的设计与分析

为保证输送带接头动态耐久性试验台在符合规范的周期内顺利完成检测工作,以输送带强度10 000 N/mm,带宽200 mm的输送带试验为例,设计了滑轨机械结构,理论分析了滑轨在输送带平衡和跑偏工况下的负载状态,采用ANSYS软件对其受力进行有限元分析。

儿童推车动态耐久性测试的失效模式分析

儿童推车是常见的儿童交通工具,其产品质量直接影响着儿童的出行安全。动态耐久性测试是儿童推车的重要安全项目,本文对该项目常见的失效模式进行分析,并提出相应的改进措施,以期为童车行业及相关企业提供参考。

轻型芳纶骨架输送带接头工艺的影响因素分析

对比了搭接与齿形接头方式的接头性能,确定了齿形接头的输送带接头方式:齿宽40 mm、齿长2 000 mm时接头强度最大;采用NN150作为增强层时对接头效率的效果最好;确定了贴胶配方含胶率65%时接头效率最高,芳纶带的接头效率及使用效果满足实际使用要求。

Durability of Stress Ribbon Bridge Checked during Loading Test

Stress ribbon bridges have many advantages and became recently more popular mostly because of their versatile form, slender decks giving a light aesthetic impression and durability assured by post tensioned concrete. The paper presents the first in Poland stress Ribbon Bridge constructed last year. A static and dynamic analyse of the model is presented as well as construction solutions which were used to achieve the highest durability. The bridge was checked during static and dynamic load test. The results of this prove test were compared with results obtained from examination and study of other different bridge structures. It confirmed that the bridge has good dynamic resistance and greater stiffness than assumed in the design.