摘要：To solve the problem of a low coal-loading rate being exhibited by the drum shearer on Chinese thin coal seams,systematic tests and research were performed to study the pivotal factors’influences on drum coal-loading rate using a model test *** effects of the drum hub diameter,cutting depth,vane helix angle,drum rotation speed and hauling speed on drum coal-loading rate were determined under circumstances of coal-loading with drum ejection and pushing modes,and reasons for these phenomena were *** results indicate that the influence of the drum cutting depth on the drum coal-loading rate is the most *** parameters of hub diameter,drum rotation speed and hauling speed can influence the drum coal-loading rate by cutting the coals’filling rate in the *** parameters of vane helix angle and drum rotation speed can influence drum coal-loading rates by influencing the ratio of cutting coals’tangential and axial speed in the *** coal-loading rate with drum ejection is clearly higher than that observed with drum *** in this study can provide support to design the drum structure and select drum operational parameters for a thin coal seam shearer.

摘要：To ensure compacted backfilling, it is essential to ensure the reliability of the performance of a solid backfill support, key equipment for integrating backfilling and mining. To evaluate the backfilling performance of a backfill support, the concept of backfill and operation properties is proposed in this study. Moreover, it is elaborated in terms of five aspects, namely, structural property, supporting property, tamping property, mechanical response property, and geological adaptation property, which are specifically reflected by 14 indexes including the supporting intensity and vertical roof gap. Seven separate evaluation indexes are selected to build a backfill and operation properties based system for evaluating the design schemes of the backfill support via a multi-index comprehensive evaluation method; then, the evaluation method and process together with measures to control the backfill and operation properties are proposed. By using this system, 11 schemes for optimizing the ZC5200/14.5/3 backfill support at Zhaizhen Coal Mine are evaluated, and scheme #10 is found to show superior vertical roof gap and other backfill and operation properties, thus demonstrating the reasonability of the evaluation system. On this basis, the backfill support research framework of designing initial scheme, optimizing design scheme, selecting the best evaluation indexes, evaluating optimizing scheme, and evaluating operation properties is built; this should serve as an important reference for further studies on the roof controlling performance of a backfill support.

摘要：分析了产品设计自动化的市场需求状况和Pro/E环境下产品设计自动化的可行性及其概念和设计步骤,最后通过采煤机截割部减速齿轮设计自动化示例说明了Pro/E环境下产品设计自动化的流程。

摘要：对绿色设计在罗茨鼓风机设计上的应用进行了研究,分析了绿色设计在罗茨鼓风机设计中的必要性,并阐述了绿色设计在罗茨鼓风机设计上应用的具体方法。

摘要：通过了解履带式全液压挖沟机液压系统的特点,确定了矿用挖沟机液压系统的设计思想和设计原理,并设计了由变量泵和定量马达组成的常闭式液压系统,提高了整机系统的可靠性。

摘要：煤炭在洗煤厂的运输机上运送过程中产生浓烈的煤尘。要对其进行喷雾降尘,首先就是要有一个抑尘装置将煤尘封闭起来。笔者就是论述抑尘罩的设计和使用情况的。

摘要：针对目前连续式液压装载机采用开式回路系统和全功率控制方法存在的油箱大、能耗高、效率低问题,对液压系统进行改进设计。通过改变回路形式和采用交叉功率控制方法,使原有系统的体积缩小了近25%、能耗降低了10%以上、工作效率提高了4%左右,具有一定的理论意义和工程实用价值。

摘要：论述了斜巷提升中跑车监控保护的必要性及所要解决的问题,针对设计参数和技术要求,对斜巷提升跑车监控保护系统进行了设计,并介绍了其组成及工作原理。对斜巷长度为700 m,倾角为25°的设计参数进行计算,将斜巷设为一坡四挡布置。

摘要：带式输送机是煤矿生产中的关键设备,以煤矿主斜井用固定式带式输送机的设计为例,对驱动系统中各部件的设计选型进行了分析。设计了液压自动张紧装置,并介绍了其工作原理。

摘要：并行工程(CE)是现代制造技术的研究热点,是集成、并行地设计产品及相关过程的系统化方法。论述了并行工程的概念以及实施并行工程的核心方法与关键技术,分析了CE在国内、外的应用状况,并结合产品开发实例论述了并行工程的实施过程,最后阐述了并行工程的应用前景与研究热点。