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- main shaft hoisting 主井提升
- mine main shaft hoisting 主井提升
- introduce the structure, disposition, control theory, functions and main characteristics of S7-400 PLC control system of changcun coal mine's main shaft hoist after upgrated and transformed. 介绍了升级改造后常村煤矿主井提升机S7-400PLC控制系统的结构、配置、控制原理、功能及主要特点。
- The paper points out the reasons of the main shaft rupturing of mine hoisting and gives out the preventive measures. 指出了提升机主轴产生实际危险截面的原因,并进行了理论分析,进而给出了预防方法。
- The hollow stemlike main shaft of a feather. 翎管羽毛的中空的茎状羽干
- The application of the system increases the safety of hoisting system and implements hoisting automatization in main shaft. 重点介绍主井信号系统结构及特点,介绍装载系统工作方式。
- The hoisting device serving the main shaft of Yinying Mine is not able to meet the need of production,so it is necessary to make reform for the main belt conveying equipment of the hoisting. 荫营煤矿主井提升设备不能满足生产要求，因此对设备的主胶带输送装置进行改造。
- A secondary mine passageway between two main shafts or tunnels. 次要矿山甬道矿井中连接两条大隧道的小巷道
- It s a important join component of hydrogenerator main shaft fasten joint bolt. 水轮发电机主轴联轴螺栓是水轮发电机重要的联接部件。
- The construction is implemented sequentially on the actuators,control components and locking signals,thus realizing the safe locking of shaft hoisting,and the result of application is satisfying. 通过对执行机构、控制部分、闭锁信号的分步实施,实现了对井口提升的安全闭锁的工作要求,使用效果良好。
- The accident that occurs during the inclined shaft hoisting conveyance occupies very large proportion in all kinds of accidents in mine, and the losses caused by the accidents are relatively great. 斜巷提升运输事故在矿井各类事故中占有很大比例,事故造成的损失也较大。
- Keywords hoisting of mines;main shaft;headframe; 关键词矿井提升;主井;井架;
- This paper introduces the factros of wear and tear about inclined shaft hoist wire rope and formed invalidity tree.It offered the reliable basis of invalidity for the mining production. 介绍了引起斜井提升钢丝绳失效的各种因素,并建立“失效树”,为煤矿生产中判断其失效原因及预防提供可靠依据。
- The bottom bearing applies both labyrinth seal and frame seal, which have good performance of sealing. The main shaft is anticorrosive. 下轴承端盖密封采用双重密封，可确保密封效果，主轴采用防腐新技术，能保护主轴免受腐蚀。
- This machine is specially designed for plucking guard hair of mink.The speed of the main shaft is infinitive variable. 该机器是专门用于对水貂的针毛进行拔除的专用设备。主轴无级调速。
- The structure of the main shaft bearing assembly can decide its using conditions. 主轴轴承的结构形式又决定了螺杆钻具的使用条件。
- According to the conditions of main shaft,choosing appropriate method to decide the best solution. 并根据主轴的实际情况,选择合适的寻优方法,进而确定最优解。
- When using main shaft at the same time ,diving ,chamfering and cutting can be done at one time . 主轴同时使用权进，分切、倒角、切断可以一次成型。
- The original through the systematic tunnel of such power supply and main shaft trad... 文章从其供电系统巷道、主井换尾绳斜巷、井底煤仓三个方面做具体的优化方案介绍。
- There are eccentric wheel,rubber software,main shaft and shaft-bearing in the vibrating chamber. 振荡室内有偏心轮、橡胶软件、主轴、轴承等组成。
