查询词典 friction ball

Because the workpiece is in dynamic balance, the resultant moment acting on it should be zero. Introducing the moment from lapping tool and press head a moving differential equation is built. In this equation only workpiece rotating speed is unknown. It means that workpiece rotating speed can be got by this equation. Since there is a transcendental function in integral function of the equation an analytic result can not be got, only digital result can be got by a computer. Thus a change rule of workpiece rotating speed with lapping parameters is known, e.g. the radius of press disc ball socket, radius of press head ball, the distance between the workpiece rotating axis and lapping tool rotating axis, workpiece radius, modulus of elasticity of the press head and press disc, friction coefficients between the lapping tool and workpiece, and between the head and disc, pressure between the lapping tool and workpiece and pressure between the press head and press disc.

因工件处于动态平衡状态，其上所受到的来自于磨具和压头的力矩应相等，将二力矩表达式联立，建立工件运动微分方程，该方程中只有工件的旋转角速度是未知量，因此可以求出工件旋转角速度，但该方程积分式中含有超越函数，得不出解析解，只能通过计算机求出数值解，得出工件旋转角速度随各研磨参数的变化规律，如压盖球座半径、压头的球头半径、工件回转中心相对磨具回转中心的偏心距、工件半径、压头和压盖材料的弹性模量、磨具与工件间的摩擦系数、压头压盖间的摩擦系数、磨具与工件间的压强、压头压盖间的压力等。

First of all, we should be familiar with the mechanical mouse click it works: by moving the mouse to bring rubber ball, plastic ball and rolling friction in charge of the mouse with horizontal and vertical directions of the gate roller wheel, drive wheel rotation gate.

首先，我们应该熟悉一下机械鼠标的工作原理：通过移动鼠标，带动胶球，胶球滚动又磨擦鼠标内分管水平和垂直两个方向的栅轮滚轴，驱动栅轮转动。

The friction moment is an important usage function parameter of the ball screw unit, whose variation has effect on dynamic characteristic of ball screw unit.

摩擦力矩是滚珠丝杠副的重要性能参数，其变动量对滚珠丝杠副的动态性能有很大影响，因此对摩擦力矩的测量是滚珠丝杠副出厂检测的基本要求。

The 130 and 139 series'large self-aligning ball bearing originally developed for the specific situation of the paper mill,but also it can be used in the situation of the low friction's importance higher than load capablity,these bearings outer and inner rings have a circular trough and several lubrication holes.the steel ball of some 12 and 13 series bearing outstands from bearing's flank.

一些12 和13系列轴承的钢球从轴承侧面突出。

Especially is suitable for the railroad locomotive, the ball mill backing, the steel ball, the breaker hammer head Austria - shell body anti-friction material isothermal quench.

尤其适用于铁路机车、球磨机衬板、钢球、破碎机锤头奥-贝体耐磨材料等温淬火。

Professional operating various lathes, drilling machine, combination machine tool, milling machine, boring machine, planer, slotting machine, grinding machine, broaching machine, sawing machine, machine tool accessories, machine tool accessories, machine tool hydraulic parts, pneumatic components, ball screw, friction plate, chuck , card claw, various fixtures, cooling pumps, gear pumps, vane pump, variable pump, all kinds of machine friction plate, oil cups, glib, butter cups, oil cups, flat belts, ribbed belts, timing belt, the center frame, with the tool carrier, dividing head, legislative milling head, all kinds of commonly used air hammer parts, forging machine tool parts, punch parts, adjust the various specifications Sizing Block, V-frame, flat panel.

专业经营各种车床、钻床、组合机床、铣床、镗床、刨床、插床、磨床、拉床、锯床，机床配件、机床附件、机床液压件、气动元件、滚珠丝杆、摩擦片、卡盘、卡爪、各种夹具、冷却油泵、齿轮泵、叶片泵、变量泵、各种机床摩擦片、油杯、油嘴、黄油杯、机油杯、平皮带、多楔带、同步带、中心架、跟刀架、分度头、立铣头，各种气锤常用件、锻压机床配件、冲床配件、各种规格调整垫铁、V型架、平板。

Efficiency: 18000 / 2 hours, SL series of roller bearings Paper on the roll, with high-precision production lines and advanced detection instruments, products, dust, double row ball cage structure; ball, roller Road, within the three holes after close elections After the assembly from distribution, a rotating flexible, small friction, rotation stable, good sealing performance, durable, easy maintenance, welcome to.

效率：18000支/小时二、SL系列上罗拉轴承皮辊，拥有高精度生产流水线和先进检测手段，产品防尘、双列滚珠保持架结构；钢球、滚道、内孔三者经过严密选配后组装而成，具有旋转灵活、摩擦力小、转动平稳、密封性能好，经久耐用，维护方便，欢迎使用。

The kind and weight of the ball you are going to use also affect the amount of friction between the ball and the lane.

种类和重量的球，您要使用，也会影响金额之间的摩擦球和里。

The design is to improve the shortcomings of traditional ball valve , and the shortcomings of traditional ball valve is friction, short life, sealing performance bad.

该设计是为了改善传统球阀的缺点而做的，传统球阀的缺点是摩擦大、使用寿命短、密封性能不好。

By analysing the scar of Four Ball Friction Test and XPS photoelectron spectrum. The mechanism of ZnDDP additive effect on friction performance was disclosed.(5) The principle of CVT hydraulic control is studied.

研究了CVT的液压系统控制原理，研制了CVT的实验变速箱、CVT变速控制的液压泵站和基于PC机的电控系统，搭建了CVT传动性能实验台，为CVT传动的基础性研究奠定了基础。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。