目前我国煤炭系统提升机所采用的控制方法，基本上可分为定容、定重、定时三种方式。定容、定时往往因煤炭水份、灰份、矸石含量的不同及煤位测量误差等因素影响，易造成超载等事故的发生，通常作为备用方式。定重装载系统则容易正确掌握和控制提升载荷，是矿井提升机系统实现自动化和安全生产的一个重要手段。 针对国内部分立井箕斗提升系统不能实现定重装载的问题，首先查阅了大量文献资料，了解了国内外动态定量称重的基本研究情况后，结合矿山的实际情况，对动态定量称重系统进行了理论研究。本课题拟采用液压式的称重方法，由压力变送器测量称重液压缸下腔及管路中密封油液的压力，通过定重装载液压系统对箕斗进行定重装载，利用PLC作为系统的控制核心，设计一套立井箕斗动态定量称重系统。首先对影响动态称重系统的精度和速度的原因进行了简单的分析，根据经验把动态称重系统看作是一个二阶系统，并建立了称重过程的动静态数学模型，进行变换后得到质量和系统参数的关系式，从而把动态称重问题转化为一个系统参数辨识问题来解决。结合参数辨识进行了称重过程的计算机仿真，验证了采用参数辨识方法（渐消记忆递推最小二乘算法）对数据处理的正确性，编写了Matlab和 C语言程序。 利用称重系统在实验室进行了大量的试验，分析该系统的动态特性和稳定性。在实验过程中不断的对系统进行了调整和改进，提高了整个系统的动态性能、稳定性与称重精度。 该设备进行了现场的工业性实验，设备在安装过程中我们遇到了不少问题并进行了及时的处理，目前该设备在煤矿上的运行状态基本稳定。最后对系统的误差进行了简单分析，在此基础上提出了一些对该系统进一步改进的设想。

At present, there are three kinds of controlling ways of elevator in our country’s coal system, constant volume、decide heavily、fixed time .Because of factors such as coal moisture, ash content, the difference of gangue content and coal’s position measuring error, constant volume and fixed time which can be considered to be achievement standby mode are easy to cause the accident of overload event, As easy to grasp and control the load’s promotion, the heavy-fixed loading system is an important ways to carry on automating and safety in production. In view of the problem of the domestic partial main shaft skip lift system can’t realize heavy-fixed loading, first I have searched mach of information about this field. After knowing the situation of basic research of dynamic weighing both in domestic and foreign, connected with the actual circumstance in mine, done some theoretical research for dynamic quantitative weighing system. This topic plans to design a set of system of dynastic weighing-fixed in main shaft skip with hydraulic weighing way. It is measured the pressure of sealed oil with pressure transmitter in bottom cavity of weighing hydraulic cylinder and pipe line, carried on weighing-fixed loading to skip though the hydraulic system of weighing-fixed and loading, used PLC as controlling center of this system, we designed a Dynamic Quantitative Weighting System of Shaft Skip. Firstly, analysis simply the reason of affecting precision and speed of dynamic weighing system. Then, according to predecessor’s experience, regarded the dynamic weighing system as a second-order system and established the mathematical model, carried on transform. it can get a relation about quality and system parameters. So the dynamic weighing issue is solved by changing to the model of parameter identification. According to this theory, made simulation with computer and verified the correctness to date processing by using of Parameter Identification(Recursive Least Squares Method with Gradual Reducing Memory), compiled program with Matlab and C. Based on the construction condition of WANG's COAL, we made a lot of experiments and analyzed dynamic performance and stability to system, for improving dynamic performance、stability、weighing precision of system ,we made some adjustments and improvements to system in experiments constantly. Made field industrial experiments to this equipment, we encountered and timely dealt with many difficulties . At present, the equipment is basically stable to running state in coal. At last, we made some simple analysis to System Errors, proposing some ideas to make the further improvement for this equipment.