天轮

解决天轮磨损超限措施

The method of solving the head sheave wear and tear overrun

矿井提升机剖分式天轮的计算分析

Calculation and analysis of bisection head sheave for mine hoist

通过变量代换，发现箕斗运动微分方程是可求解的Bessel方程，从而得到了装载过程中箕斗的弹性位移、速度、加速度和天轮处钢丝绳的张力的解析表达式。

By means of variable substitution , it is found that the differential equation of motion is a Bessel equation . Based on the equation , responses of elastic displacement , velocity , acceleration of skip and cable tension close to sheave were deduced .

用自拉自法更换煤矿井架天轮

Way of drawing itself to replace the sheave wheels of headframe

双天轮直平式抽油机结构优化设计

Structure optimum design of double wheel and direct balance pumping-units

落地式多绳摩擦提升机天轮安装

Installation of console model multi-rope friction hoist 's head sheave

矿井提升天轮槽衬的设计

Design of The Linings for The Groove of Headgear Sheave

提升机天轮运行状态自动监测系统研究

Study on the Auto-supervise systems of hoist 's Head Sheave under Operation Condition

竖井提升机天轮吊装方案

Hoisting plan about head sheave of vertical shaft hoist

3.25m天轮装置游动轮轴瓦故障处理

Treatment of bush movement failure for traveling sheave of 3.25 m hoisting sheave device Float · Swim

提出了一种基于天轮传感器的新型箕斗提升定重装载系统；

A novel kind of definite weight loading skip hosting system based on head shave is proposed .

利用机构选型中的组合原理设计了一种新型天轮式长冲程抽油机。

On the basis of creative-design theory of machine and the combination principle , a new-style and long-stroke pumping unit was designed .

深圳会议展览中心钢结构工程吊装技术新集一矿混合井天轮提升中线和轴心的标定

Hoisting technology of steel structure in Shenzhen Convention & Exhibition Center Calibration of Sheave Hoisting Center Line and Axle Center in Mixed Shaft

新集一矿混合井天轮提升中线和轴心的标定矿井采区集中运输巷提升中线的放样

Calibration of Sheave Hoisting Center Line and Axle Center in Mixed Shaft The Layout of the Lift Centerline in the Concentrated Carrying Laneway of the Mine

分析了倒拉式矸石山运输普遍存在的排矸架天轮断轴问题，提出了改进措施。

This paper analyses the broken axis problem of head sheave on waste dumpcommonly existed in inverse draw type haulage system of waste dump , and puts foward improvement ways .

与常规抽油机相比，其扭矩可以下降10%～15%，平衡效果好，平衡力矩有较大幅度降低。该机采用双变径天轮，提高了整机的动力性能；

Compared with the common pumping unit , the new-type pumping unit decreases in moment of torque by 10 percent to 15 percent , and the counterbalance moment decreases greatly .

针对不同的装载流量，分析结果表明：箕斗速度和加速度以波动形式衰减，而箕斗弹性位移和天轮处钢丝绳张力以一定斜率震动增长；

With different loading fluxes , the results show that amplitude of velocity and acceleration attenuate distinctly along with skip 's loading , and elastic displacement and cable tension increase gradually .

提升机天轮轴承是矿井提升系统的重要部件，轴承运行状态的好坏直接影响到整个提升系统的性能。

Bearings of the hoist head sheave are the most important parts of the mine hoisting system , and the running state of the bearings directly influences the performance of the mine hoisting system .

分析了几种矿井提升系统权绳保护方法的优缺点，提出了一种新的松绳保护方法&由安装在天轮轴承支座处的薄型测力传感器间接监测提升钢丝绳张力进行松绳保护。

This paper analyzes the slacking rope protection method for hoist system , and proposes a new method that the slacking rope protection are executed by monitoring rope tension with the thin force sensors .

天轮式抽油机的运动和动力特性分析指出影响电机功率的因素是悬点扭矩的变化规律和扭矩波动的大小。其原因是后天轮轮廓曲线有效半径与理论值差异所致。

Given two conclusion : one is the factor affected motor power is the law of suspension point torque , the other is the factor affect torque fluctuation is the difference between the effective radius of hind heaven sheave and the theory 's.

在天轮曲线选择设计中，前变径轮选用3段圆弧连接曲线，后变径轮选用对数螺线，并根据模型示功图对天轮和整机的尺寸参数进行了优化设计。

In the design of the curve of the sheave pulley , the front varible-diameter wheel adopts 3-section circular arc and the rear wheel applies logarithmic spiral . And the dimensions of the sheave pulley and the pumping unit are optimized according to the dynamometer card of the model .

利用带天轮的单容器提升系统动力学模型，设计出在预定的加速时间内，既使系统达到预定的运动状态，又使其振动大幅度减小的振动变结构控制算法。

By using a dynamic model of a single-vehicle winding system with a guiding wheel , the variable structure control algorithm of reducing vibration of winding system is derived , which also makes a single vehicle get to its given motion state at the end of the acceleration time .