The high speed drilling shaft and pin cylinder system work at the same reference axis to ensure high work precision and convent operation. 高速精密钻孔主轴和钉销气缸系同基准轴线上工作,能保证工作精度高,操作方便。
Larger tunnel section brings larger exposed area and higher risks when shield departs from the working shaft, so the stability of reinforced soil in this stage is the new challenge for the work. 隧道断面越大,封门拆除时加固土体所暴露的面积也越大,施工风险也就越高。
In selection of compressor, the determination of the basic property parameters, such as shaft power, gas discharge volume, volume efficiency, of the machine set based on process conditions is the basis for late work. 在压缩机选型设计过程中,根据工艺条件初步确定机组的基本特性参数,例如轴功率、排气量、容积效率等,是开展以后工作的基础。
The construction of drilled hole with shaft wall protection by drilling mud belongs to the concealed work, the pile quality influences directly the superstructure security and the building subsidence. 泥浆护壁钻孔灌注桩施工属于隐蔽工程,成桩质量的好坏直接影响上层结构的安全和建筑物的沉降。
The opposite direction airflow in Eastern Main Shaft of Certain Mine is caused by the main fan stoping work to undergo repair. 某矿东主井因停产检修、主扇停运引起了主井风流反向。
Compared with many designs of cleaning main shaft bottom falled coal, analysis the traditional problems ( for complicated system 、 difficult work of roadway and room 、 heavy work), and make a helpful attempt. 对多种清理撒煤方式分析比较,针对传统设计中存在的问题(系统复杂、硐室施工难度大、工程量大)进行剖析,并对选型设计作有益的尝试。
Based on terminal conditions of numeric analysis, numeric analysis of the relative expanding difference of shaft and cylinder of steam turbine was made at the different temperatures in the no-load work condition by ANSYS. 利用数值分析的边界条件,运用ANSYS有限元分析软件,对汽轮机转子及汽缸空负荷工况下,不同排气温度时的相对胀差进行了数值模拟。
Using traditional method to solve strength and stiffness problem with drive shaft under complex loads features boring and arduous calculation work. 用传统方法求解有复杂载荷作用的传动轴的强度与刚度,需要十分繁重的计算工作量。
Study indicates that, the new type shaft wall structure shape can work under full loading after assemblage in shaft, and it has great loading capability and good mechanics characteristics. It applied to outer shaft wall supporting in frozen shaft in deep alluvium which deeper than 400 m. 研究表明,该种新型井壁结构形式具有在井下装配后即可满负荷工作,承载能力大、受力特性好等优点,适用于400m以上深厚表土层冻结井外层井壁支护。
Compared with the theoretical fatigue life of helical gear shaft and the social work cycle, and check the correctness of calculation method. 将理论计算的疲劳寿命同斜齿轮轴疲劳断裂的实际工作周期相比较,验证该计算的准确性。
The power in compressed gas can be converted to the shaft work, and transfered to the load. 它将气体的压力能,转化为转动轴的轴功输出给负载设备,利用较小的压降得到负载所需要的动力。
How to carry on the comprehensive and effective monitor and control to the mine shaft work is an important part of the coal production safety. 因此,对井下作业进行全面、有效的监控,是保障煤矿安全生产的重要环节。
According to the motor shaft-small gear shaft shrink fit, the work which owned hardness test, fracture analysis and crack analysis, had been done to find invalidation mechanism. 针对电机轴-小齿轮轴过盈配合,从硬度测试、断口分析和裂纹分析三个角度入手,确定了其失效模式与失效机理。
To save space concept design collar shaft structure realize two rotating shaft of one output; By constructing the two sealing ring and fill them with butter layer, and realize the dynamic seals, success in solving the machine work underwater fish motive power output of difficult problems. 以节约空间的理念设计轴套轴结构实现两个转动轴的同心输出;通过构造两个封闭环并填充黄油层,实现动密封,成功解决了机器鱼在水下工作动力输出的难题。