查询词典 hoisting sheave

Aiming at some problems of safety assessment and influence factor of oil﹠gas drilling hoisting system process. The thesis analyses oil﹠gas drilling hoisting system hazard and accident style. From human-machine- environment viewpoint and according to the establishing principle of safety assessment index system, set up oil﹠gas drilling hoisting safety assessment system.

针对油气钻井起升系统作业安全影响因素和安全评价中的问题，分析了油气钻井起升系统作业的危险源及风险事故类型；从人-机-环境系统的观念出发，根据安全评价指标体系建立的原则，构建了包括起升系统设备设施因素、作业人员安全管理因素、安全管理制度因素、事故应急响应因素、作业环境因素的油气钻井起升系统作业的安全评价指标体系。

When power is transmitted to the elevator shaft, it drives the splined center wheel and the planetary mechanism which consists of three planetary wheels forming 120 degrees with each other and the inner gears drives the drum to rotate, the hoisting band brake is combined with the hoisting disc, and the drum's left ring is combined with the braking band brake, then the elevator has three status: hoisting, braking, and lowering down.

当动力传至升降机轴后，轴带动与花键联接的中心轮，三个互成120度的行心轮及内齿圈组成的行星机构，使卷筒回转，提升抱闸与提升盘结合，卷筒左端外圈与制动抱闸结合，这样升降机具有提升、制动、下降三种工作状态。

In view of the problems existed in multi-level train hoisting signal system of coal mine, a kind of simple and practical hoisting signal unit combining the requirement of hoisting signal with practicality is designed.

针对煤矿多水平串车提升信号系统存在的问题，按提升信号的要求结合实际设计一种简单实用的提升信号装置。

In view of the problems existed in multi-level train hoisting signal system of coal mine,a kind of simple and practical hoisting signal unit combining the requirement of hoisting signal with practicality is designed.

针对煤矿多水平串车提升信号系统存在的问题，按提升信号的要求结合实际，设计了一种简单实用的提升信号装置。

Based on the condition that the hoisting rope be regarded as the continuous flexible rod, by synthetical analyses which take the ride comfort of hoisting cage and the little dynamic oscillation of hoisting rope as the aim, the rational acceleration curve of driving system,the best acceleration function is brought out in this paper, and all these can provide conferential reference for...

基于钢绳为连续弹性杆的条件下，通过提升容器满足乘坐舒适性和提升钢丝绳系产生较小震动为目标的综合分析，提出了矿井提升机械驱动系统的合理加速度曲线，即提升机常用激励加速度函数的首选形式，为矿井提升机的进一步研究和设计提供参考依据。图 7，参 14

This company is the professional hoisting crane, hoisting equipment, shelf mounted unboxing, large hoisting equipment, plant equipment relocation, car transport, terminal handling and customs clearance on behalf of business and equipment insurance.

本公司系专业起重吊装、设备吊装、货架装拆箱、大型设备吊装、厂房设备搬迁、汽车运输、码头装卸及代报关和设备保险等业务。

A first hoist having a first drive sheave and a second hoist having a second drive sheave are arranged in a hoistway.

在井道内，设有具有第一驱动绳轮的第一曳引机和具有第二驱动绳轮的第二曳引机。

Designer, manufacturer and user of crane are urgently demanded to understand characteristics of fatigue behavior, law of failure and mechanisms of failure of wire rope due to ceaseless appearance of new type and new specifications of wire rope and sheave, in order to design and choose to match wire rope to sheave properly by scientific method.

由于国内外新品种、新规格钢丝绳和滑轮的不断出现，迫切要求广大起重机设计、制造和使用者了解钢丝绳的疲劳行为特征、损伤规律和损伤机理，以便用科学的知识和方法合理设计和选配钢丝绳与滑轮。

For this reason, test assessment of fatigue property of wire rope winding sheaves, influence of groove material of sheave on fatigue life of wire rope, fatigue failure analysis of wire rope and microstructure of wire rope have been studied by a new type electro hydraulic servo automatic wire rope–sheave synthetic tester, scanning electron microscopy, micro-hardness measurement, imagine processing and so on.

为此，本文采用新型电液伺服式全自动钢丝绳－滑轮综合疲劳试验装置，综合应用扫描电子显微镜、显微硬度测试和图象处理等技术，对绕滑轮工作钢丝绳的疲劳行为特征和损伤机理进行了系统深入的研究，主要包括疲劳性能试验评价、滑轮材质对钢丝绳疲劳寿命影响、钢丝绳疲劳失效分析和钢丝绳显微组织等的研究。

The power of motor is positive proportion to square root of equality of square pure torque .the pure torque is combined by suspension point torque and balancing weight torque ,so the change of suspension point's motion law and balancing weight offset angle can causes pure torque variation .especially, the suspension motion law is decided by configuration curve of hinder heaven sheave .so the paper has emphatically studied and analysis the law that the configuration curve of hinder heaven sheave brings the change of pumping unit energy-saving .

电机功率与减速器曲柄轴净扭矩均方根成正比，减速器曲柄轴净扭矩是由悬点载荷产生的扭矩和平衡重产生的平衡力矩合成的；改变悬点运动规律和平衡重的滞后角可以引起净扭矩的变化，其中悬点运动规律是由后天轮曲线决定的，因此，本文依据此原理着重研究分析了后天轮曲线影响抽油及节能的变化规律。

I'm going tor her!

我这就去救她！

As rise are design to help keep a several toney , a brain chemical at continues lever.

SSRI被设计来帮助保持血液中的复合胺即在大脑中一个连续水平的化学物质。